SID2022 Program

Program is subject to change. This program version was accessed on 2022-11-29 05:28:59.
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8:15 am


8:15 am to 9:00 am • Foyer

Please make your way to the registration desk outside Hall M to collect your name tag.

9:00 am

Welcome to Spatial Information Day 2022

9:00 am to 9:15 am • Hall M • Graham Walker

An opening speech by the Chair of SID.

9:15 am

How and why Adelaide National Park City can create opportunities, value and change

9:15 am to 9:45 am • Hall M • Sheryn Pitman (Project Lead, National Park City at Green Adelaide)

Adelaide was declared a National Park City in December 2021, the second in the world after London. After a rigorous submission and assessment process, our new status was announced at the World Urban Parks Global Congress. What does this mean? Along with being acknowledged as one of the most liveable cities in the world, this new status opens up many possibilities here in South Australia. While a National Park city is essentially about bringing people and nature together, it is also about much more than that. Being a National Park City provides opportunity for leadership both nationally and internationally. We have a springboard to engage with more people, more of our community, to address inequity, to be more inclusive and work more closely with First Nations people. It is the perfect time to highlight the value of green and blue spaces, to involve communities as well as individuals. We have further opportunity to address the health and wellbeing, climate, economic, aesthetic, natural resource, biodiversity, food and sense of place benefits of nature in cities that have been acknowledged as important for a long time now. And being a National Park City will be valuable when addressing planning and policy issues in the future. We have a chance we’ve not had before to promote the value of nature and of working with, rather than against, nature. We have a chance to refocus our efforts to make things more collaborative, equitable and inclusive. We have an opportunity to bring science and technology to the fore to contribute to smarter, evidence-based decision-making. And while we have many challenges ahead of us, we also have refreshed and new opportunities to bring the whole of greater Adelaide along on the journey towards more liveable, sustainable, engaged and empowered communities.

9:45 am

Power, privilege and data: how we map and what we miss

9:45 am to 10:15 am • Hall M • Roshni Sharma (FrontierSI)

Summary abstract is unavailable

10:15 am

The future is FAIR for spatial

10:15 am to 10:45 am • Hall M • Karen Joyce (She Maps, GeoNadir & JCU)

Over the years we have become accustomed to reusing, recycling, and upcycling a wide variety of different products and materials. At the same time, a greater awareness of the health and environmental impacts of practices such as fast food and fast fashion have also led calls for more sustainable ways of living. Collectively, this opens discussions about moving away from a linear economy - where products are created, used, and then thrown away - to a circular economy. This aims to keep resources circulating as long as possible, breathing new life into them in different ways before they become terminal. We can apply this same model of thinking to spatial data that we create or capture. In developing an open data economy, we recognise that all data should have a life beyond the original consumer and purpose for which they were captured. Instead, we build opportunities to continually add value and repurpose our data for ourselves and others to develop new insights. In order to work, data must be findable, accessible, interoperable, and reusable (FAIR), and people within the open data economy must participate beyond their consumption. Are you ready to embrace a circular data economy, a FAIR mindset, and erase single-use data?

10:45 am

Morning Tea
Conference Recess

10:45 am to 11:30 am • Hall N

Summary abstract is unavailable

11:30 am

Boosting the talent pipeline by embracing diversity and inclusion
30 Minutes

11:30 am to 12:00 pm • Hall M • Amelia Davies (Director Location Capability and Chair of the Space, Spatial and Surveying Diversity Leadership Network at ABS)

In response to workforce shortages and growing competition for skills, eight industry bodies joined forces in 2021 to establish a baseline for the state of diversity across the space, spatial and surveying profession, and the impact inclusive teams can have on innovation, productivity, and staff retention. For the first time, the results from the Inclusion@Work index provides a baseline that enables us to pinpoint the areas where our industry is doing well, where we fall short, and provide an evidence-base for the impact that inclusion can have on productivity and innovation, and directing our actions to improve inclusion and diversity. This presentation will present some of the key findings from the index, along with tangible actions individuals and organisations can take to affect change.

Tasman Bridge - Spatial Digital Twin
30 Minutes

11:30 am to 12:00 pm • City Room 3 • Paul Digney (Technical Director Data Capture at Jacobs)

The Tasman Bridge in Tasmania was officially opened to traffic on the 17th August 1964, designed as a 1.2km, 18m wide, four lane high level concrete bridge with a central navigation span for shipping, replacing the original floating Hobart Bridge that spanned the Derwent River. In 1975 On Sunday 5 January 1975 at 9.27pm, the bulk carrier Lake Illawarra collided with the Tasman Bridge causing the collapse of two piers and 127m of bridge deck collapse. A total of 4 vehicles ran over the edge and the Lake Illawarra sank, with a total of 12 lives lost in the disaster. Reconstruction works took a total of 2 years., with the bridge officially re-opened on 16th December 1977. Since that time the bridge has undergone a range of upgrades and changes. Originally design with a traffic capacity of approximately 34,000 vehicles per day, it now carries well over twice that amount and a large number of foot and bike usage as well. This presentation will provide a short summary of the history of the Tasman Bridge, highlighting the recent 3D survey undertaken of the bridge (above/below water) creating the most comprehensive ever spatial digital twin of this iconic Tasmanian feature. Using a combination of 3D laser scanning and ultra-high resolution broadband multibeam sonar Jacobs in conjunction with the CSIRO’s Hobart based Geophysical Survey & Mapping division captured an unprecedented detailed 3D model of the existing bridge structures including the location and condition of the Lake Illawarra which sits on the bottom of the Derwent river adjacent to one of the piers.

Adelaide Riverbank Precinct – 3D land tenure visualisation and accessibility using GIS
30 Minutes

11:30 am to 12:00 pm • City Room 2 • Noel Gehren (Licensed Surveyor at Alexander Symonds)

Alexander Symonds has been involved with the land tenure in the Adelaide Riverbank precinct for over 15 years. The precinct has a highly complex interaction of rights and tenure including different titles, easements, leases, lease rights, caveats and various Acts of Parliament. Alexander Symonds has developed a GIS to capture the land tenure details and has made the GIS accessible to various stakeholders through a web map incorporating both 2D and 3D representation of the land tenure. The presentation seeks to describe the forms of land tenure and rights that exist in the precinct and details some of the processes undertaken to capture and process the data. The presentation describes the challengers in representing 3D land tenure in both traditional cadastral plans and on GIS platforms. A demonstration of the Riverbank GIS that was developed by Alexander Symonds will be presented to demonstrate some solutions that can be achieved through the creative use of GIS.

Multidisciplinary asset management and LiDAR – a beginner's discussion
30 Minutes

11:30 am to 12:00 pm • City Room 4 • Eleanor Chandler-Temple (LiDAR Support Engineer at Riegl Australia)

The capture and processing speed of LiDAR (Light Detection and Ranging) makes it a lucrative tool for spatially-aware asset management and digital twin integration. Using real-world examples, we look at how this technology is being deployed to drive efficiency and compliance in their industries in an accessible conversation. We will cover both viewpoints of established asset owners deploying this technology for themselves and newcomer companies accessing this world for the very first time.

Intergovernmental Committee of Surveying and Mapping@Work
30 Minutes

11:30 am to 12:00 pm • City Room 1 • Craig Sandy (Surveyor-General of Victoria, Chair ICSM at DELWP)

ICSM@Work - Our role in delivery of foundational spatial data The Intergovernmental Committee on Surveying and Mapping (ICSM) is a standing committee of ANZLIC – the Spatial Information Council. Together we set and implement the direction for the delivery of government’s foundational spatial data across Australia and New Zealand. ANZLIC sets the strategic direction and ICSM ensure the development of best practise, standardisation and implementation of consistent spatial data across the surveying, mapping and charting sectors. Our work, while technical in nature, is important in solving the largest social issues our community faces. One example is climate change: * Sea level rise has a significant impact on coastal communities and in particular property value and protection of the coastal environment. * Emergency management (planning, response and recovery) in relation to more frequent and intense natural disasters (such as flood, fire, drought etc) relies on accurate and (sometime VERY) current spatial data. ICSM has a role to play in this work. Much of the work of the ICSM working groups goes un-noticed and yet it underpins our communities’ ability to understand the impact of the issues and to begin taking action to address them. This presentation will provide an update on the behind the scenes work of ICSM. Our work covers topics such as: * Street Addressing * State Borders * Positioning * Imagery * Land parcels and their use * Marine boundaries and marine environment * Place naming and many more. With an agenda of modernisation of our data and delivery systems, ICSM and ANZLIC have a vision for ensuring our data is available to any user. This work requires government, academia and the private sector to work collaboratively to deliver on this vision. How can we achieve this outcome?

12:00 pm

A time machine for Earth observation: massive scale historical analysis of aerial imagery using machine learning
30 Minutes

12:00 pm to 12:30 pm • City Room 3 • Michael Bewley (Senior Director, AI Systems at Nearmap Australia)

Nearmap AI is one of the few very large scale geospatial machine learning based products in operation globally. Having been run at high resolution (7cm/pixel) on over 8 million square kilometres of historical imagery, we turn tens of petabytes of imagery into petabytes of AI data sets. A unique aspect of this approach is that because it is fully automated, analysis can be run on the full catalogue of over a dozen years of surveys, to capture detailed analysis of historical trends. In this session we cover the results and methodology behind a decade long analysis of residential tree cover in Adelaide, from 2011 to present. The existing tree cover at a point in time is heavily influenced by factors that are difficult to change – the structure of a city and local environmental factors such as rainfall.  In order to measure the impact of development, policy and population behaviours, it’s critical to be able to track a single location over time… using a consistent data set and methodology. Most new methodologies have to start from scratch, as they require specialised sensors and capture programs. Using the tree canopy layer derived from Nearmap AI, it becomes possible to retrospectively assess tree canopy on any of the historical captures by Nearmap. We will look at the trends on the city as a whole, as well as deep-diving on a few suburbs that represent common trends.

National Standard of Competency for Licensed or Registered Surveyors affiliated with the CRSBANZ
30 Minutes

12:00 pm to 12:30 pm • City Room 1 • Michael Nietschke (Senior Licensed Surveyor at Alexander Symonds)

National Standard of Competency for Licensed or Registered Surveyors affiliated with the Council of Reciprocating Surveyors Boards of Australia and New Zealand (CRSBANZ) The project to establish a National Standard of Competency for Licensed or Registered Surveyors builds on recent CRSBANZ research projects to establish surveying degree qualifications and review of different competency assessments enforced by the various boards prior to accepting graduates for registration. The competency framework clarifies what constitutes a competent graduate surveyor and a competent licensed surveyor, that reflect the realities of modern surveying. The presentation will provide details of the skills, knowledge and experience required for a licenced cadastral surveyor and broad geospatial professional graduate learning outcomes. The presentation will also explore the potential benefits of a national education and training program based on the national competency standard that include: * Clear consistent pathway that will provide graduates clarity and certainty to reduce the timeframe to become a Licensed or Registered Surveyors. * Greater mobility through stronger recognition of cross-sector and transferable skills and develop pathways to allow graduates to move or transfer between jurisdictions * Supports the continuing professional development of Licensed or Registered Surveyors. * Making better use of industry and educator expertise to ensure better quality outcomes * Process to facilitate resource sharing through online learning to avoid duplication of effort and deliver economies of scale * National tiered qualification to recognise stages of competency through micro-credentialling approach to demonstrating competencies. * Short training courses with micro-credentialing to improve knowledge, awareness, and skills in current, and emerging areas for surveying professionals * Pathways to a career in surveying for graduates of allied professions that recognise their qualifications and experience

Community communication through maps
30 Minutes

12:00 pm to 12:30 pm • City Room 2 • Robert Rowell (Founder and Managing Director at Insight GIS)

Local governments are constantly challenged with a technological expectancy from residents and the community for increased services. Expectation is that information from council will be at their fingertips, 24x7. This presentation will look at examples where online mapping is not seen as a mapping but as a communication tool which uses maps. The approaches are based on interface communication principles (not GIS), which has enabled the development of a more relevant and easier to use tools. The TrueView example illustrates a community self-service portal which provides a wide range of property centric information from flood and storm surge information, building constraints, planning and land use information. The benefits explicitly show how councils are finding this to be an easy way to share information with their communities and to facilitate transparency. Discover Communities has been designed to augment the front counter of local government and the typical queries that residents seek to be answered. Hence the approach is focused on the community and the need for user friendliness and ease of access. A key success of Discover Communities is that in Tasmania it has been able successfully meet the statutory obligations of providing planning scheme information to the community in an easily understandable and information way.

Using spatial clash detection modelling to optimise asset renewal planning
30 Minutes

12:00 pm to 12:30 pm • City Room 4 • Sam Fulton (GIS Specialist - Assets at City of Mitcham)

The City of Mitcham has developed a new, innovative method of utilising detailed spatial analysis to optimise their infrastructure renewal planning. With a greater number of the workforce working from home, and different teams working within separate IT systems, the City of Mitcham found challenges communicating infrastructure delivery across teams. Having data sources located in different modules inhibited users from gaining a holistic view of all upcoming renewal works and opportunities. This required a solution to enable visibility of all data sources, and increase cross-team collaboration without disrupting business-as-usual for staff. The Spatial Asset Planning & Clash Detection Project involved a 3-stage approach to address these challenges: * Stage 1 – Spatial Display; involved collating all spatial data sources that are relevant to asset renewal planning and projecting these in one location for all staff to view; that location being the corporate GIS viewer. These data sources include Defects, Capital Works Programs, Forward-Year Asset Renewal Programs, Future Tree Planting Strategy, and Works Opportunities. * Stage 2 – Clash Detection Analysis; involved performing analysis on these GIS layers to identify spatial intersection of defects, opportunities and tree plantings with our future asset renewal programs. This modelling contained detailed selection and filtering criteria of the datasets, so that only the relevant opportunities and defects intersect with target asset categories. The models created several spatial layers which were published into a customised ArcGIS Online Dashboard to alert Asset and Operations planners to clashes and opportunities; allowing them to proactively plan their works with a holistic knowledge of all other works happening in the organisation. * Stage 3 – Consultation & Business Transition; involved workshopping the dashboard tool with key stakeholders (Operations Maintenance, Assets, Engineering and tree planting teams) and transitioning the business into utilising this spatial, dynamic and holistic method of infrastructure planning. The City of Mitcham has recently implemented the clash detection dashboard with key teams, and consulted to consider their requirements and where we can make improvements. The end goal of this project was to proactively identify areas where efficiencies can be made, by identifying defects on assets that are already due for renewal, or finding opportunities that can add significant value to projects. The increased transparency of the data also results in more informed staff, better customer service for our residents, and a more efficient way to deliver infrastructure.

Short talks from Women in Geospatial Science
30 Minutes

12:00 pm to 12:30 pm • Hall M • Alana OConnor (Mipela Geosolutions); Ellen Carter (City of Marion); Jennifer Brindle (Precision Hydrographic Services); Ana Villa (Oz Minerals)

The Women in Geospatial Science network (WGS) will host a half hour comprising 3 short presentations. This year, 2 network members will talk about their jobs and another will cover highlights of her experience at the ESRI User Conference in San Diego. The WGS network advocates for greater participation and recognition of women in the SA Geospatial industry. This network provides a forum to establish useful and supportive connections and encourages professional and personal growth. Facilitator: * Alana O’Connor, Mipela Geosolutions. Speakers: * Ellen Carter from the City of Marion presents highlights from the Esri UC in San Diego. * Jennifer Brindle from Precision Hydrographic Services presents her experiences working as a hydrographic surveyor and why more women should get involved in hydrography. * Ana Villa from Oz Minerals presents about GIS in Mining Exploration.

12:30 pm

Geospatial technology and data transforming ABS small area geographies
30 Minutes

12:30 pm to 1:00 pm • City Room 2 • Jarrod Lange (Assistant Director - Geospatial Research and Design at Australian Bureau of Statistics)

Decision makers across Australia and globally use the broad range of Australia Bureau of Statistics (ABS) data. Much of that fundamental statistical data is geospatially enabled and is used by geospatial and data analysts to provide vital Location Insights. For example, insights from ABS data will inform businesses locating new retail outlets, help organisations assess local level exposure and vulnerability to natural hazards, and enable international comparisons of regional COVID-19 impacts. The ABS publish socio-economic and other data as open resources for a range of small and large geographies. These data cover topics such as population and demographics, households and families, incomes and employment, business and the economy, land use and the environment. The ABS’s Australian Statistical Geography Standard (ASGS) provides an up to date, consistent set of geographic areas that enables the release and geospatial analysis of these data. ABS has been part of the recent transformation in the use of data within the Australian Government and throughout the business and academic community. ABS have used new technologies and methods to keep up to date with changes in the use of data and with the broader changes in Australia’s landscape, economy, and people. This has been particularly true from a geospatial perspective, delivering changes to the amount of small area data available, how the ABS releases these data, and how we maintain and update the ASGS. This presentation will uncover current and future changes to the range of small area data the ABS releases, and how these data are discovered, visualised, and accessed. ASGS design processes at the small area level and changes to the ASGS geographies in the current five yearly update will also be showcased.

Electronic Plan Lodgement – Next Generation
30 Minutes

12:30 pm to 1:00 pm • City Room 1 • Frank Triulcio (Manager LIS at Land Services SA)

Land Services SA is designing the next generation of the Electronic Plan Lodgement system used by the survey industry for the creation and lodgement of cadastral survey plans. This session will share with industry the key functional and design improvements being included in the specification of the system. The session will also provide an opportunity for Industry to be exposed to early screen designs that are expected to form the basis for the new system.

Prioritising Adelaide's urban greening
30 Minutes

12:30 pm to 1:00 pm • City Room 4 • Blair Pellegrino (Senior Environmental Information Officer at Department for Environment and Water)

Urban landscapes are becoming increasingly modified through the loss of canopy cover and increase of hard surfaces, which is in turn contributing to the urban heat island effect. In response, urban greening on both public and private land has become a major focus for state and local governments. But with limited resources, where should urban greening investment be prioritised? Undertaken in partnership with Green Adelaide, this project aimed to answer that question by applying a spatially explicit methodology to prioritise areas across metropolitan Adelaide which are in greatest need of urban greening, and to subsequently inform targeted investment in high priority areas. The analysis combined existing spatial datasets relating to canopy cover, green cover, impermeable surfaces, urban heat and social vulnerability to identify areas of highest priority. Results were summarised at the suburb scale, as well as using a 50 m grid to identify underlying patterns and variations within a suburb, and allow local scale planning and decision making. Initially undertaken as a pilot, this analysis is intended to be repeated following the recapture of key input datasets and will incorporate learnings and additional requirements from Green Adelaide and their partners.

SAR re-emergence: the revolution in satellite SAR sensors
30 Minutes

12:30 pm to 1:00 pm • City Room 3 • David Bruce (A.Prof. GIS and RS at Flinders University)

Spaceborne Synthetic Aperture Radar (SAR) sensors have been used in Earth Observation for a long time with early examples, such as the short lived SEASAT, launching in 1978. This and subsequent SAR carrying satellites such as Envisat (8.21tons), ERS 1 and 2 (2.38tons & 2.52tons respectively), Radarsat 1 & 2 (2.7 & 1.4tons respectively), ALOS Palsar 1 & 2 (4.0tons & 2.12 tons respectively) were all large, heavy and expensive satellites, with relatively poor temporal resolutions (for example, ALOS 2 Palsar at 14 days). The advent of smaller satellites and payloads has resulted in the launch of satellite constellations such as Radarsat Constellation (three satellites launched in 2019), COSMO SkyMed (four satellites launched from 2007 to 2010 with repeats being constructed or launched in 2022) and Sentinel 1 (two satellites launched in 2014 and 2016 – third for launch in 2023). These newer constellations of SAR satellite sensors have focused on a single wavelength (usually C Band – 5.5cm, or X Band – 3.1cm), improving spatial and temporal resolutions, which are typically now around (1 to 5m, spotlight mode, single polarization) and a few days, respectively. The trade-off for these improvements is usually low polarization capability with only one or two polarization combinations (usually VV and VH) being available. This trend is now accelerating with the advent of start-up and smaller commercial companies launching SAR satellites. For example, Capella Space ( have launched 8 of 36 X Band SAR microsatellites (112kg) with temporal resolutions in the order of hours and spatial resolutions of approximately 0.5m. Similarly, Synspective ( plans to launch 30 X Band, single polarization (VV) SAR microsatellites (100kg) to provide 2 hourly observations (day or night) at 1m spatial resolution of most of the Earth. Whist the “revolution” in constellations of small SAR constellations expands, the attention of national space agencies on larger SAR satellites has been in the area of extended wavelength and polarizations. Two examples are NISAR, a joint mission from NASA (USA) and ISRO (India) to launch a 2.8ton satellite with two wavelengths (S Band (12cm) and L Band (24cm)) and four polarizations to be launched in 2023, and BIOMASS, an ESA mission to launch a P Band (70cm), four polarization SAR. All these SAR satellite sensors provide capability for SAR interferometry (INSAR) permitting very sensitive 3D change in ground terrain to be measured and in the case of the L and P Band SAR estimates of forest height, structure and biomass. To illustrate this forthcoming “wave” of SAR sensor capability, this presentation will show examples of structural change in vegetation as a result of fire and plantation forest biomass using imagery from X, C and L Band Satellite SAR sensors. Examples from South Australia will include change to native and pine plantations after the 2019 / 2020 Kangaroo Island fire, pine planation biomass at Mt. Crawford in the Mt. Loft Ranges and pine and eucalyptus planation biomass at Nangwarry in the Southeast of the state.

Space & spatial industry panel

12:30 pm to 1:00 pm • Hall M • Zaffar Sadiq Mohamed-Ghouse (AAM); Glenn Cockerton (Spatial Vision); Andy Koronios (SmartSat CRC)

The panel will discuss the opportunities and challenges in the space and spatial integration. Highlights of the Space and Spatial 2030 roadmap will be outlined as part of the panel discussion. Draw Industry’s perspective on the opportunities especially in downstream of Space investment, ie Earth Observation and Positioning opportunities for spatial sector. What capacity building measures need to take place and strategy for developing Industry readiness to respond to space initiatives will also be discussed in the panel. Confirmed Panellists include: Professor Andy Koronios PhD Chief Executive Officer & Managing Director SmartSat Cooperative Research Centre Glenn Cockerton Co-Chair, Space + Spatial Roadmap 2030 MD Spatial Vision

1:00 pm

Conference Recess

1:00 pm to 1:45 pm • Hall N

Join us in Hall N for lunch.

1:45 pm

When koality data counts use GNSS trackers, not GPS
15 Minutes

1:45 pm to 2:00 pm • City Room 3 • Claire Moore (PhD Candidate at Flinders University)

When tracking animal distributions and movements in the field there are several options available. Citizen scientists can provide volunteered geospatial information using smartphone apps or web mapping applications to upload sightings, but these are often opportunistic or geographically biased data sets. Genomic analysis of scat or fur collected on sticky tape strips can be used to identify individuals and their presence at different locations in the landscape but is expensive and requires a lot of personnel to collect suitably fresh samples. Radio tracking is a traditional technique but only provides data when animals wearing VHF transmitters pass within range of a receiver, usually carried by a field researcher. This results in very intermittent data leading to many missed movements and potential social interactions, which are often important when modelling animal population patterns. GPS/GNSS trackers are becoming common in wildlife research, producing frequent location data, as often as every 2 minutes with some models. They can be fitted with solar panels which charge the tag, allowing the subject animal to be recorded for years without the need for recapture to replace batteries, and their locational data can be uploaded to a web portal through a long-range (LoRa) wireless network. However, recent experience has proved that less expensive tags, using just the GPS constellation, can collect positional data with an average error of 40m, and up to 400m in some cases. This magnitude of horizontal error makes them inappropriate to use in tracking sedentary species, e.g., our local koalas. Trackers using GNSS have proven to be considerably more accurate, with a much smaller HDOP, enabling the identification of individual behaviour patterns that allow modelling of social networks and disease transmission opportunities in endangered populations. For larger species and those moving over larger distances, however, the considerably lower cost of the GPS tags makes them highly suitable for following the movements of large populations, when contacts between individuals and fine-scale home range estimations are not essential. The new generation of miniaturised solar-powered GNSS trackers are providing ecologists with data at a level of location accuracy and frequency never before achieved, and with their inclusion of Bluetooth proximity detectors and accelerometers, animal population research is now generating outputs which can model disease transmission at an individual animal level or accident hotspots of animal mortality which can then be managed proactively to reduce risks for endangered and iconic species.

What Digital Twins and the Metaverse mean for our infrastructure
15 Minutes

1:45 pm to 2:00 pm • City Room 1 • Henrique Reis (Geospatial Analyst at AAM)

The space industry's most disruptive innovation solution is happening right now and I'm witnessing this revolution at work in the AAM business: Digital Twins. In this year 2022, Digital Twins has been showing just how strong 3D technologies are in the geospatial field, with demand growing exponentially. Different areas are being requested around the world to keep an update and demand on their LiDAR and point cloud images mapping. Digital Twins will be able to better provide simulation of multiple scenarios to predictive futures in 3D geospatial presentations to support faster, more informed, and more reliable decision making. This technology is aimed at smart cities to help different tasks in a more environmentally, economically, and socially compatible way. The real power of a digital twin is its ability to enable scenario modelling in a safe real-world environment, in which users can have the perception of conducting site visits virtually. In this way, digital twins have the potential to add other industries such as education, tourism, fashion, an effective way of providing the built environment directly to our homes. This social-digital interaction is intrinsically geospatial and will rely heavily on interoperability to combine data/information to gain new insights, interactive actions of digital twin technologies for modelling and simulation that affect the real world. This massive construction of scaled and interoperable spaces that are interconnected with immersive 3D virtual worlds in real time will be a web of progression into the metaverse. Thus, all 3D geospatial patterns will be useful and necessary in the construction of the metaverse. The metaverse is essentially a digital world where people can interact in a shared sense of presence, interaction and continuity across multiple spheres that is connected to the real-world interoperability is presented as a key point for the development of a Building Information Modelling (BIM), for the open and non-proprietary system for exchanging files in the construction and infrastructure sector. This new reality will bring innovations if it has momentum through the 5G internet, promoting cloud-based connectivity and robotics technologies to be smarter to build the right environment for effective transformation. The geospatial industry is essential for building the metaverse in real-time integration of geospatial data, which enables location-accurate rendering of 3D scenes: geospatial industrial will be a bridge to encourage other companies to be part of this new metaverse. The concept of digital twins has been gaining more and more prominence in the product development space and the search for the power of detailing so that with the metaverse it will influence the ever-increasing transformation of the geospatial industry.

International hydrographic survey during COVID-19
30 Minutes

1:45 pm to 2:15 pm • City Room 4 • Darren Stephenson (Fugro)

Hydrographic survey for the National Maritime Safety Authority (NMSA) in Papua New Guinea commenced in mid June 2017 and with two contract variations it was completed in May 2022. The project was postponed for 2 years due to COVID-19but early 2022 travel permissions were obtained and the project was completed in April/May 2022. In 2018 where 16m of water exists along the coast in May 2022 sediment build up has produce a land mass extending 350m offshore.

The future of mobile mapping
15 Minutes

1:45 pm to 2:00 pm • Hall M • Sam Hesper (C.R. Kennedy)

Summary abstract is unavailable

Geospatial information systems programs at Flinders – a focus on education for the future
15 Minutes

1:45 pm to 2:00 pm • City Room 2 • Tessa Lane (Lecturer at Flinders University)

Flinders University is the only university in South Australia to offer entire programs in Geospatial Information Systems (undergraduate, master, graduate diploma, graduate certificate). GIS is a sector that is expanding rapidly and being increasingly integrated into almost every discipline. As such, we view our role in GIS education as critical in providing job-ready graduates who have developed life-long learning skills, can problem-solve, and have geospatial intelligence. Moreover, we aspire to provide our students with GIS programs that are innovative, relevant and with frontier technologies and science in mind. We are excited to announce refreshed and revised GIS programs to be launched in 2023. These new degrees aim to better align with industry needs and emerging technologies, while also being engaging and attractive to students. Consultation with SSSI, ESRI, alumni and industry connections has been instrumental to us in developing these new courses and the content within them. Some of these changes include further integration of data science, database management, data engineering, machine learning/AI, and cloud-based technologies. New core fundamental topics will be introduced to scaffold the higher-level content and provide a better foundational framework. We are also expanding the opportunities for students to undertake Work Integrated Learning (WIL) and industry-based project work, which benefits both students and industry alike. Our degrees also offer pathways for students in others areas such as ground water, archaeology and environmental science. This presentation will outline the content for our new programs, highlighting key improvements based on recommendations, and directions for the future. We welcome questions, feedback, and discussion.

2:00 pm

LiDAR-derived bushfire fuel load survey of the Adelaide Hills: landscape to property-level insights
15 Minutes

2:00 pm to 2:15 pm • City Room 2 • Robert Tynan (Aerometrex)

Quantitative data describing the amount, structure and spatial distribution of bushfire fuel loads across the landscape is a critical foundation for bushfire hazard reduction activities. Furthermore, the quality and currency of this data can heavily influence the effectiveness of fuel load reduction strategies. The 2020 Royal Commission into National Natural Disaster Arrangements noted that the key benefits of remote sensing and spatial technology (including LiDAR) is enabling bushfire management experts to examine fuel in a holistic, dynamic way. Key to these benefits is the ability of remote sensing technology to provide end-users with a multi-resolution understanding of fuel loads, by providing actionable information ranging from landscape-scale maps to help generate informed mitigation and response strategies, to individual property-level insights that have the potential to increase community engagement in risk reduction on private land. Presented here is a case study, undertaken by Aerometrex, demonstrating these benefits through an Airborne LiDAR-derived bushfire fuel load survey of the Adelaide Hills, centred on some of the region’s most densely populated, high risk hills communities. This case study builds upon the foundational research completed in 2020 developing calibrated methodologies for modelling fuel load quantity and structural attributes for heathy eucalypt woodlands and forests using optimised LiDAR capture techniques. Key outputs from this fuel load survey are relevant to all stakeholders, from state level fire agencies to individual private land-owners and include: * Regional fuel load density, vertical connectivity and tonnes per hectare (t.Ha-1) fuel load maps to help state-level bushfire experts plan cost-effective, targeted fuel load management across the wildland-urban interface of Adelaide. * Property-level fuel load attributes to help facilitate effective community engagement as active participants in fuel mitigation strategies. * Automatically generated Bushfire Attack Level (Method 1) estimates for all dwellings within the survey area to help raise awareness about reducing proximal fuels. * Fire rate-of-spread models to potentially help agencies plan and execute fuel management programs.

Improving geospatial intelligence where vegetation, biosecurity and infrastructure field works intersect
15 Minutes

2:00 pm to 2:15 pm • City Room 3 • Lynnette Terrett (Spatial Technologies Director at Iconyx division of RapidMap)

Asset managers manage infrastructure maintenance on a daily basis where many field based technicians are deployed to identify and respond to defects to extend the use of the assets and mitigate risk. Often asset maintenance and risk mitigation comes in the form of spatial data related to the effect of vegetation or biosecurity / weed encroachments on drainage channels, roads and powerlines. This presentation looks at the intersection of spatial data and new technologies such as 360 road corridor imagery, UAV broad acre weed surveillance, LiDAR ( bushfire risk and powerline encroachment), drainage / storm water network inspections, feature extraction and Ai solutions to identify locations for field services and public works teams to collaborate to save time and money. By managing vegetation and biosecurity mapping in the field using the same data collection technologies for asset infrastructure management purposes, spatial intelligence can be shared, digital twin - foundational data sets can be improved, the life of assets can be extended and regional sustainability development goals can be addressed. Now that the pandemic confirmed that we are all remote workforces, this pivot allows us to capture spatial data once and leverage the content to extract value many times over. Can your field based technicians help you to enhance the quality of your organisations spatial data?

Code Amendment Process
15 Minutes

2:00 pm to 2:15 pm • Hall M • Daniel Clapp (Planning and Land Use Services)

Jason will provide an overview of the Code Amendment Process, Plan SA online resources and the procedure for code amendments initiated by private proponents with an interest in the land under Section 73(2)(b) of the Planning, Development and Infrastructure Act 2016. Plan SA online resources include the Planning and Design Code Amendment Toolkit that provides practitioners with step-by-step guidance, together with templates and online forms to request an amendment to the Code. The presentation will summarise the Commissions role in ongoing improvements to the Code include Strategic Code Amendments, Regular Code maintenance, minor or operational amendments such as overlay, zone, and sub-zone spatial changes and technical or numeric requirements.

Stakeout and in-field verification for BIM
15 Minutes

2:00 pm to 2:15 pm • City Room 1 • Joshua Weckert (UPG)

Summary abstract is unavailable

2:15 pm

Innovation in hydrography
30 Minutes

2:15 pm to 2:45 pm • City Room 4 • Samuel Houston (AAM)

Summary abstract is unavailable

Enhanced 3D city modeling
15 Minutes

2:15 pm to 2:30 pm • City Room 1 • Fabrice Marre (Head of Research and Development at Aerometrex)

Advances in spatial computing such as cloud computing, Artificial Intelligence and real-time 3D rendering tools allow experts and non-experts to augmented what was before simple 3D city mesh models into intelligent and ultra photorealistic digital representation of our urban environment. In the presentation, we will explore through multiple case studies different types of augmentation and enhancement for specific end-uses. We will also wonder in the near future to better understand how this convergence of technology will help shape the future of the 3D mapping industry.

Land development working with native vegetation – finding the best approach
15 Minutes

2:15 pm to 2:30 pm • Hall M • Adam Schutz (Principal Advisor at Native Vegetation Branch-Department of Environment and Water)

The recent introduction of the Planning and Design Code under the Planning, Development & Infrastructure Act 2016 (the PDI Act) has resulted in the establishment of two overlays relating to native vegetation. This has established a trigger for referrals under the PDI Act to the Native Vegetation Council. The overlays also require that native vegetation is consider early in the development application process, particularly in relation to the retention and protection of vegetation of conservation significance. This has had particular impacts in relation to the subdivision of land where all the clearance that will likely occur as a result of the land division, including in relation to the subsequent use of the land, needs to be considered and addressed at the time of applying to divide the land. This presentation will provide information regarding the best approach to considering and addressing native vegetation impacts associated with development applications. This will include the following; * The means of identifying areas of significant vegetation, particularly in the pre-lodgement stage; * How to avoid, minimise and mitigate impacts on native vegetation, such as appropriate setbacks, the use of building envelopes and Land Management Agreements; * The process of applying when there are likely impacts on native vegetation; * The main consideration of the Native Vegetation Council is assessing applications; * Conditions that may be attached to development approvals; and * The requirements in relation to the achievement of a Significant Environmental Benefit (SEB) offset. Early consideration of native vegetation, including in relation to good site selection and appropriate design and implementation of development proposals, can reduce overall costs of a development, reduce timeframes for decisions and increase the likelihood of having a successful application. It will also improve the environmental credentials and potential liveability and appeal of proposed development, particularly for residential developments. The Native Vegetation Branch with the Department for Environment and Water can assist in achieving these outcomes.

Spatial topics in flood hazard mapping
15 Minutes

2:15 pm to 2:30 pm • City Room 3 • Amber Webster (Principal Flood Management Officer at Planning and Land Use Services (Department for Trade and Investment))

In 2020, Planning and Land Use Services received COVID stimulus funding to invest in LiDAR, detailed and coarse-scale flood mapping to improve flood risk mitigation via land-use planning as well as providing additional resources to support emergency response. The Flood Hazard Mapping and Assessment project is now well-progressed and has made extensive use of spatial data at all stages. This paper will lightly discuss a number of topics relevant to spatial professionals including the flood risk profile of South Australia, utilization of LiDAR-derived impervious data for Adelaide, IP licensing, dissemination of data and project management for optimizing deliverables from consultants with respect to data.

Innovations in space based positioning
15 Minutes

2:15 pm to 2:30 pm • City Room 2 • Peter Terrett (GNSS Specialist at 4D Global )

Once the realm of surveyors and other spatial specialists, satellite positioning is now so ubiquitous as to often be taken for granted like electricity and fresh water. The first system was the United States Global Positioning System (GPS) and has now been augmented with several other systems from Russia, Europe, China, Japan and India, collectively referred to as Global Navigation Satellite System or GNSS. Rather than compete, they have decided to work together to provide a worldwide system of highly available, highly accurate and affordable Navigation, Positioning and Timing services. In 1986 when I started using GPS, we had only 2 periods of just over an hour when there were enough usable satellites overhead to log data. Now with GNSS (Global Navigation Satellite Systems) we will have more than 100 different satellites come into view over a 24 hour period with between 36 and 55 in view above 10 degrees at any one time. PLUS add an additional 3 to 4 QZSS (Japanese) regional satellites. However, it is not just the increase and availability of the satellites that has enhanced our daily PNT projects. Several spaced based and ground control innovations have paved the way for non-surveyors to use accurate location as part of their workflow. What this means is that a subject matter expert in Forestry, Cultural Heritage, Environment, Pipeline Engineering, Geophysics and other disciplines, can now add the value of accurate location to their field data. In this presentation Peter Terrett will share insights into what has changed to make it is now easier and more affordable than ever before to capture real time, spatial accuracy in the air and on the ground for foundational digital twin data to be collected, driven by innovations in space based positioning.

2:30 pm

Efficient on-board AI processing of hyperspectral imagery for early fire-smoke detection
15 Minutes

2:30 pm to 2:45 pm • City Room 2 • Stefan Peters (Lecturer at UniSA STEM)

This SmartSat-CRC funded research project aims to provide a solution for energy-efficient AI-based on-board processing of hyperspectral imagery supporting automated early detection of fire smoke. We propose using modified and resampled VIIRS imagery data that emulates spectral, spatial, and radiometric resolution of HyperScout-2 hyperspectral imagery. In doing so, we intent to provide a solution that meets on-board processing limitations and up/downlink data transfer restrictions for the upcoming Kanyini/ HyperScout-2 Earth Observation mission. Based on a semi-automatically created fire smoke training dataset, our proposed AI processing approach is performed at two levels: a) on-board feature and band selection, and b) ground AI neural network tasks – in order to optimize on-board processing and downlink data transfer. Our emulation consists of TensorFlow based CNN training, and the use of hardware elements: Raspberry Pi and an Intel Myriad Neural Network Compute Stick. OpenVINO software was selected to implement on-board imagery processing operations and performance testing. To optimise onboard processing, our methodology and performance testing includes on-board imagery selection; image masking, band selection, imagery segmentation; and on-board CNN-based fire-smoke detection. We developed a light-weight AI model with spatial-attention, channel attention, inception network and residual learning. First results based on Landsat-8 training data showed a fire smoke prediction accuracy of 87.8%. Although developed for the Kanyini satellite mission carrying the HyperScout-2 Hyperspectral imagery sensor, our approach could be adjusted for other multi- or hyperspectral earth observation sensors on small satellites. In addition to a possible extension of our work towards fire hotspot or fire scar detection, our research could also be applied to other Early warning applications, such as flood or landslide detection.

Centimetre-level RTK accuracy everywhere?
15 Minutes

2:30 pm to 2:45 pm • Hall M • Noor Raziq (GNSS Network Manager at HxGN SmartNet - Australia)

When your GNSS survey work requires centimetre-level accuracy in real time, a CORS Network RTK service is the best choice for your correction service. This usually requires a GNSS CORS network used to produce the correction service AND a connection to the network through the internet. In this presentation we investigate some options when either of these services (CORS Network OR Internet Network) are not available temporarily or permanently. For example, non-availability of GNSS and mobile infrastructure in outback Australia or short outages affecting this infrastructure.

Optimising the value of spatial technologies through digital twinning
15 Minutes

2:30 pm to 2:45 pm • City Room 1 • Edward Cronin (Digital Engineer at Digital Twinning Australia)

Digital Twinning Australia [DTA] is value adding and optimising how we use spatial technology. DTA has been involved in significant projects which aim to optimise how we use and work with spatial technology. For example, a recent project was centred around creating a digital twin of key assets including straddle vehicles and infrastructure in a port container terminal. With an emphasis on value, safety, and community engagement, some fourteen [14] Use Cases have been explored. An aerial 3D laser scan was taken to deliver a 3D digital asset. The scan together with critical value chain assets were combined to create a synchronising digital twin, a complete live digital replica of the port environment. The laser scan coupled with the synchronising digital twin created the baseline for building future spatial ecosystems. Through using this ecosystem and optimising the spatial technology, DTA took the container terminal out of the 2D world and brought it into not only the 3D era but also into Industry 4.0. The use case results individually and collectively are a work in progress, however the findings thus far have concluded: * Technology development has resulted in scan to 3D digital environment reduced from months and weeks to days and hours. * The integration of the asset’s location data in conjunction with the contextual visualisation of the scanned environment gives credibility and more powerful insights for the operator. * Historical and as-is layers of scanned tarmac environments reinvents predictive condition monitoring. * Using location data within the digital twin is shifting the bar on instantaneous monitoring of the loads on wharves, leading to improved prevention in overloading and improved data to inform future upgrades and designs based on actual ship loads, saving money on expensive repairs and optimising future investment to correctly engineer asset upgrades. The use cases outlined in this project demonstrates the value obtained through optimising existing spatial technology with new and innovative digital twin technology. The benefits for businesses to adopt these spatial technology ecosystems will provide the baseline for their journey into the era of Industry 4.0.

Self-sufficiency in your own back yard – food production and rainwater harvesting capabilities of Adelaide homes
15 Minutes

2:30 pm to 2:45 pm • City Room 3 • Isobel Hume (PhD Candidate at The University of Adelaide)

Engineering sustainable food systems for a growing population will be one of the greatest challenges of the coming decades. With more than half of the world’s population residing in cities, there has been intense interest in urban agriculture. Urban agriculture, the practice of growing food within the urban boundary, is able to address a range of urban challenges. However, the feasibility of widespread sustainable and accessible production remains unclear. Critical to understanding the viability of urban agriculture, and ensuring its environmental sustainability, is the intersection of available land and agricultural inputs. Here, we model the food production and rainwater harvesting potential of residential properties and examine food gardens' global warming potential (GWP). Adelaide, South Australia, is used as a case study. High-resolution spectral and LiDAR imagery was combined to identify rooftops and urban lawns, while cadastral data informed land tenure and property boundaries. The resulting model was analysed alongside productivity and irrigation data from a previous citizen science project, and a range of rainfall scenarios. Approximately two-thirds of residential properties contained enough lawn space to produce the household’s recommended vegetable intake, while capturing and storing adequate rainwater for irrigation - even in the modelled Dry year scenario. The modelled edible garden and associated storage tank would occupy around half of the lawn space in a typical residential block. Finally, Denitrification-Decomposition (DNDC) modelling was performed to analyse the biogeochemistry of soils under either a poly-culture vegetable garden or lawn. We estimate the GWP of residential lawns based on their current spatial extent, and compare the sustainability outcomes of converting a proportion to urban agriculture. Early results indicate that replacing urban lawns with vegetable production significantly reduces greenhouse gas emissions of urban soils. These results highlight the potential for urban agriculture to contribute to urban sustainability. However, this potential is not currently being realised.

2:45 pm

Testing of recent geoid models in the Adelaide region
15 Minutes

2:45 pm to 3:00 pm • Hall M • Geoffrey Sandford (Retired qualified geodesist)

How do you test the accuracy of a geoid model? A network of accurate survey marks bearing ellipsoidal heights was created across the greater metropolitan area of Adelaide, stretching from Gawler to Victor Harbor. At these sites accurate heights on the AHD71 were also available. Consequently a template of more than 500 “geometrically measured” geoid-ellipsoid separations was available for testing recent AUSGEOIDS in the above area.

Regency Road to Pym Street project – moving bridges
15 Minutes

2:45 pm to 3:00 pm • City Room 1 • Michelle Grose (Survey Manager at McConnell Dowell)

McConnell Dowell, in alliance, delivered the Regency Road to Pym Street (R2P) Project, which connects the South Road Superway and Torrens Road to River Torrens Motorway, providing a continuous 47-kilometre Motorway along the North-South Corridor. The project was delivered four months early and $28 m below target cost by the R2P Alliance - made up of McConnell Dowell, Arup, Mott MacDonald and the Department for Infrastructure and Transport. Prefabrication of two 82m long 15m wide sections of the Regency Road Bridge was constructed offline in a nearby redundant soccer field to reduce traffic disruption and mitigate potential site delays impacting the critical path. Each bridge section was moved into position using SPMTs over a 7-day road closure with the back spans also constructed in-situ outside of the road corridor allowing traffic to use both Regency and South Road without being impacted by construction of the bridge. The prefabrication of the bridge sections involved surveying and constructing the two sections independent of their final orientation and location, both horizontal and vertical. Four separate 3D Helmert transformations were used to coordinate all set out at the final bridge location and the fabrication site. AI was used initially to visualise both the location of the bridge sections at the soccer oval and the bridge over Regency Road.

Big robots in dynamic environments – an Armada Fleet update
30 Minutes

2:45 pm to 3:15 pm • City Room 4 • Dave Field (Managing Director at Ocean Infinity)

The Armada Fleet is looking to transform the way we conduct operations at sea by reducing our footprint and impact, but what does this really look like and how do we achieve it? Ocean Infinity has embarked on a journey of automating many of the operations people normally conduct at sea and is designing automated vessels and systems to achieve this. This presentation will provide an insight into the development and background work, providing an update on the technology that will soon be in Australian waters.

Improved outcomes through data-driven decision making with FME
15 Minutes

2:45 pm to 3:00 pm • City Room 2 • Christian Fellinger (1Spatial)

This presentation includes a selection of case studies showcasing how organisations use FME to combine data and extract insights and patterns from it, to make better decisions. This ultimately impacts efficiency, revenue, customer satisfaction and employee retention.

UAV SFM and LIDAR applied to rapidly transgressing coastal dunes in southeast South Australia
15 Minutes

2:45 pm to 3:00 pm • City Room 3 • Marcio DaSilva (PhD Candidate at Flinders University)

Unpiloted Aerial Vehicles are used for many applications across the sciences and spatial industries. In geomorphic applications, they are used to provide high-resolution 3D and 2D datasets to study earth surface processes and their changes. Their widespread popularity and relatively inexpensive technology has led to many publications in the past decade, but there are non-trivial concerns about their efficacy, reliability and limitations. The Younghusband Peninsula in the Coorong of South Australia is a ~180 km coastal barrier predominantly comprised of Holocene aged transgressive and parabolic dunefields. In certain areas, metres of shoreline are eroded per year as it is exposed to the full brunt of the Southern Ocean swell and persistent aeolian forces, scarping the back beach and coastal dune barrier. This exposure to wind and waves as well as a supply of sediment has resulted in a highly dynamic dunefield, with contrasting extremes of erosion and accretion. The transgression and landward translation of coastal dunes is understood to be one response of natural systems to a rising sea level, but the timeline, rates of migration and physical drivers of change in these systems is poorly understood. With the use of geospatial technology, investigating and illustrating how these systems change in precise detail is possible. This presentation will briefly show the historical shoreline context for a study site around 42-mile crossing and summarise results of on-going research from 2~ years of SFM surveys with consumer UAVs. The erosion trends observed in the historical context will be contrasted to the recent surveys according to point cloud derived changes, showing the rapid shoreline retreat and landward translation of the transgressive dunes. The limitations of SFM will lead into the comparative case study of surveys between SFM and LIDAR. In April of 2022, two study sites were surveyed concurrently, using SFM (Mavic 2 Pro and RTX GNSS) and LIDAR (DJI Matrice 300 RTK with TrueView 410 DIS). The results illustrate the differences of resolution, vegetation penetration, precisions, and accuracies of each method.

3:00 pm

Tunnel Health Monitoring during and post construction
15 Minutes

3:00 pm to 3:15 pm • City Room 1 • Jareth Stocker (Structural Monitoring Manager at Cody Corporation)

With big tunneling projects in the pipeline for Australia and especially Adelaide monitoring the health of these tunnels is paramount. Providing a safe work environment for all staff on site should be the number 1 area of concern for all construction teams. By utilizing our wireless monitoring solutions any project lead will be able to monitor the condition of the tunnel during and post construction to ensure integrity is maintained. While using tunnel boring machines ensuring site vibration levels are maintained will enable contractors to ensure that public housing and other infrastructure around the job site is remaining unaffected by the underground tunneling occurring. Cody Corporation's monitoring solutions will be able to provide any contractor with real time information as construction is underway, this data will be able to give early warning indications to construction crews of major failures which may occur during and post construction potentially preventing major incidents from occurring. After construction of the tunnels have been completed, being able to monitor the tunnels integrity and slow deformation due to traffic load, changing weather conditions and geotechnical events will enable asset owners to determine the structures life cycle and how to best maintain the required repair works for the life of the asset.

Unpacking the notice of the surveyor-general (no. 4) – placing permanent survey marks and provision of information for permanent survey marks
15 Minutes

3:00 pm to 3:15 pm • Hall M • John Linsell (Senior Cadastral Surveyor at Department for Trade and Investment - Office of the Surveyor-General)

The Survey Regulations 2020 provide for directions by the Surveyor-General which, amongst other things, gives the authority to specify Permanent Survey Mark (PSM) requirements. The Surveyor-General is responsible for establishing a network of Permanent Survey Marks for surveyors to use. Direction No. 4 covers instructions about the type of PSMs that can be utilised in different situations, including land division of more than 5 allotments, when specific marks need to be connected and specifications around the placing of new marks within the existing control network. Coupled with the placement of PSMs the direction also outlines the requirements for the provision for information for PSMs, including coordinates, locality sketches and information pertaining to the Notification of Final Marking requirements for new PSMs placed in Divisions of Land into More Than Five Allotments This session aims to clarify the overall information required to be provided by surveyors under Notice of the Surveyor-General No. 4 especially the use of the recent introduction of mini PSMs and how Surveyors shall determine and provide to the Surveyor-General MGA2020 coordinates for new PSMs or for existing marks that need re coordination.

LiDAR in sport – using airborne LiDAR to produce maps for Orienteering
15 Minutes

3:00 pm to 3:15 pm • City Room 2 • Tyson Hillyard

Although Orienteering is a small sport in Australia, it is making use of the latest spatial technology to create the maps it needs for its international standard competitions. Orienteering maps are highly detailed topographic datasets at relatively large scales (1:15 000 or more). These maps show a multitude of features for an athlete to interpret, identify and navigate at speed (running) through various types of terrain. In the past, mapping terrain for Orienteering has been a labour of love for a few dedicated mapping enthusiasts using dated and inaccurate methodology, though more recently the mapping community has turned to LiDAR to speed up the mapping process and improve accuracy. Using various terrain visualisation techniques and automated feature extraction, LiDAR has made the creation of Orienteering Maps a much more automated process. Through this presentation we will explore what makes an orienteering map special, how we are using LiDAR technology to improve the mapping process and give a 2022 insight into where orienteering mapping is in South Australia and other parts of the world.

Efficacy of multi-season Sentinel-2 imagery for classifying and mapping natural grasslands condition
15 Minutes

3:00 pm to 3:15 pm • City Room 3 • Diego Guevara (PhD candidate at The University of Adelaide)

Characterizing reference levels of disturbance and conservation is key to assessing the degradation of natural ecosystems. Such assessment requires detecting changes in the condition of vegetation communities, such as the expansion of invasive species. A task that remains challenging in heterogenous ecosystems with a high vegetation diversity like grasslands. Recent research has demonstrated that vegetation mapping in grasslands can improve by combining vegetation phenology characteristics with multi-temporal satellite images. The emergence of high spatiotemporal resolution imagery from satellites like Sentinel-2 has increased the horizon for modelling techniques that enable the discrimination of dominant species and communities in grasslands. However, native vegetation can persist inside patches dominated by invasive species complicating the detection of subtle differences in vegetation, which are needed to monitor the condition of disturbed grasslands. Here, we aimed to explore Sentinel-2 time-series data and the random forest (RF) machine learning algorithm to characterize the condition of natural grasslands, defined by the dominance of a key native perennial graminoid. Our study focused on the Iron-grass Natural Temperate Grassland of South Australia (Iron grasslands henceforth now on), a vegetation community dominated by large tussock perennial graminoids known as Iron grasses (Lomandra sp.) and severely affected by the annual invasive wild oat (Avena barbata). Spectral bands and vegetation indexes were employed to determine the optimal input for classifying and mapping different levels of iron grass tussocks abundance, wild oats and woodland patches. We contrasted classifications conducted at 10 m and 20 m resolutions. Field data subsets were used for model training and accuracy assessment. Results showed that classifications at 10 m resolutions had better accuracy than classifications at 20 m resolution (10 m, OA = 60 – 80 %, kappa coefficient = 0.3-0.7; 20 m, OA = 30-60 %, kappa coefficient = 0.25-0.4). At both spatial scales, classifications employing the dry season data set had better accuracy, and the NDVI and EVi-2 indexes had more importance than red-edge indexes and bands. At the 10 m scale, vegetation indexes or their combination with spectral bands resulted in more accurate classifications than employing only spectral bands, while the 20 m classifications showed similar results. Vegetation classes were predicted most accurately in the sites with mid to greater iron grass tussock abundance and woodland. The resulting map showed that iron grassland patches in better condition were located opposite to areas dominated by wild oats with few or no iron grass tussocks. Our findings demonstrate the relevance of pixel resolution and data seasonality for the classification and mapping of grassland community condition.

3:15 pm

Afternoon tea
Conference Recess

3:15 pm to 3:50 pm • Hall N

Summary abstract is unavailable

3:50 pm

Update from the Surveying and Spatial Sciences Institute

3:50 pm to 4:00 pm • Hall M • Paul Digney (SSSI)

Summary abstract is unavailable

4:00 pm

The role of the Surveyor-General and vision for the future

4:00 pm to 4:30 pm • Hall M • Bradley Slape (Surveyor-General of South Australia at Planning and Land Use Services, Attorney-General's Department)

The Surveyor-General has many statutory roles and functions under several pieces of legislation. This presentation explains the history of the role and the diverse functions of the Surveyor-General, including Cadastral Surveying, Place Names, Addressing, Road Closing, Geodesy and the vision for the future of surveying in SA.

4:30 pm

The Australian Hydrographic Office and it's importance to an island nation

4:30 pm to 5:00 pm • Hall M • Adam Muckalt (Deputy Hydrographer of Australia at Australian Hydrographic Office)

This presentation will delve into how the work of the Australian Hydrographic Office is an enabler of the prosperity of our island nation of Australia, with the richness of our social culture enhanced when we are connected to the sea, through delivering on our core principles by meeting Australia’s obligations as Australia’s National Hydrographic under the Safety of Life at Sea and other conventions; enabling the protection of the marine environment; and enhancing the use of the sea for maritime trade and commerce.

5:00 pm

Happy Hour (Cocktail Reception)

5:00 pm to 6:00 pm • Hall N

Summary abstract is unavailable

6:30 pm


6:30 pm to 10:30 pm • Panorama Ballroom

Summary abstract is unavailable