The Future of Geospatial and Positioning Infrastructure Amy Peterson and Rob Sarib DLPE - Survey Services 29 May 2015 DEPARTMENT OF LANDS PLANNING and the ENVIRONMENT NT Spatial 2015 - New Positioning Technologies and Spatial Techniques Forum
The Future of Geospatial
and
Positioning Infrastructure
Amy Peterson and Rob Sarib
DLPE - Survey Services
29 May 2015
DEPARTMENT OF LANDS PLANNING and the ENVIRONMENT
NT Spatial 2015 - New Positioning Technologies and Spatial Techniques Forum
• What is a modernised Geospatial and Positioning Infrastructure?
• What are the trends from an international perspective?
• Status and future plans of the NT Geospatial Reference System (GRS)
• A New Geodetic Datum • Challenges ahead
Presentation Content
NT Spatial 2015 - New Positioning Technologies and Spatial Techniques Forum
International Fédération of Surveyors Fédération Internationale des Géomètres Internationale Vereinigung der Vermessungsingenieure
The International Federation of Surveyors Federation of national associations; Represents all surveying disciplines; UN-recognised non-government organisation (NGO); Its aim is to ensure that the disciplines of surveying and all who practise them meet the needs of the markets and communities that they serve; It provides an international forum for discussion and development aiming to promote professional practice and standards Liaise with like minded organisations - UN GGIM, IAG
The International Federation of Surveyors (FIG)
The International Federation of Surveyors
The International Federation of Surveyors (FIG)
TEN FIG Commissions Commission 1 – Professional Standards and Practice
Commission 2 – Professional Education Commission 3 – Spatial Information Management
Commission 4 – Hydrography Commission 5 – Positioning and Measurement
Commission 6 – Engineering Surveys Commission 7 – Cadastre and Land Management
Commission 8 – Spatial Planning and Development Commission 9 – Valuation and the Management of Real Estate Commission 10 - Construction Economics and Management
Young Surveyors Network
What is the “geodetic reference frame” and what is it
used for ?
From an FIG perspective….. • The geodetic reference frame is Geospatial Infrastructure
• Critical to geoscience activity as it measures and monitors the
dynamics of the earth
• Primary purpose is to define and realise the horizontal and vertical spatial datums
• Is the reference or fundamental layer that underpins most spatial datasets or information or systems
FIG Perspective
From an FIG perspective….. • Is the backbone for positioning frameworks and location
intelligence
• It is recognised as essential and enabling infrastructure supporting sustainable economic development
• It is “fit for purpose” infrastructure
• Integral component of geospatial activity in surveying, mapping, GIS, LIS, “ubiquitous” positioning applications, imagery data collection and analysis
FIG Perspective
What does “modernisation” mean from a FIG perspective
?
What does “modernisation” mean
from a FIG perspective ?
Geospatial infrastructure and / or reference frame which has ………. • Been mathematically aligned with International Terrestrial Reference Frame (ITRF) realisations
• A hierarchy of rigorously propagated co-ordinates (position) and uncertainties for the geodetic / survey control network
• Integrity, reliability and is survey accurate
• Interoperability and unification amongst geospatial information datasets and systems at all levels – local, national, regional, and global
FIG Perspective
• Several International GNSS Service (IGS) compliant GNSS CORS contributing to Asia Pacific Reference Frame (APREF).
• Defined and derived a geoid and / or the relationship
between “height” systems
Geospatial infrastructure and / or reference frame which has ……….
• Adhered to international standards and practices
• The capability to benefit from a multi – GNSS environment
FIG Perspective
• The capability to support global observing systems for accurate scientific research modelling such as inter / intra tectonic plate deformation, sea level monitoring, climate change, atmospherics
Geospatial infrastructure and / or reference frame which has ……….
FIG Perspective
• Is aligned with new mass-market wide area positioning technology and applications i.e. national, regional and global real time positioning services delivered by satellite, digital communications, and the Internet
Geospatial infrastructure and / or reference frame which ……….
FIG Perspective
• Can utilise or benefit from quality imagery / satellite data, the development of new mapping technologies and products
Geospatial infrastructure and / or reference frame which ……….
FIG Perspective
FIGs perspective on the modernisation of geospatial infrastructure / geodetic reference frame ........
• Implement an ITRF / APREF based geospatial or geodetic
reference frame
• Densify multi GNSS CORS infrastructure as it is the most cost effective way to integrate, maintain and ensure compatibility across various geospatial systems and datasets at the local, regional, national and global level.
Significant FIG Messages
FIGs perspective on the modernisation of geospatial infrastructure / geodetic reference frame ........
• ITRF / GNSS CORS infrastructure provides opportunities to use
and access traditional and future positioning related applications / services
• Utilise copious amounts of data from earth observing / monitoring systems as it will be available and be collected with respect to ITRF
• Key to success – There must be a unified and collaborative approach with common objectives to achieve “fit for purpose” infrastructure.
Significant FIG Messages
What does “modernisation” mean from a FIG perspective
?
So what are the Territory’s / drivers, objectives and plans for GRS (geodetic
framework) modernisation?
50 mm
300 mm Distortions!
Drivers for Modernisation 1 – Limitations of GDA !
1.4 m
NT Spatial 2015 - New Positioning Technologies and Spatial Techniques Forum
Meckering, WA Oct 1968
Canterbury , NZ 2010/11
Drivers for Modernisation 2 – Deformation demands datum maintenance !
NT Spatial 2015 - New Positioning Technologies and Spatial Techniques Forum
Imagery Elevation Transport/ Utilities Addresses Boundaries Water
Survey Control
The Real World Volumes of data generated and geo-referenced by GNSS techniques on ITRF!
Datum - GRS
Drivers for Modernisation 3 – Demand for and reliance on high quality spatial data is insatiable !
NT Spatial 2015 - New Positioning Technologies and Spatial Techniques Forum
Canterbury , NZ 2010/11
Drivers for Modernisation 4 – Precise Co-ordinates will be easy to obtain !
NT Spatial 2015 - New Positioning Technologies and Spatial Techniques Forum
Real-time precise positioning will become more easy, affordable, accessible, reliable in a multi GNSS environment .... the datum / GRS must respond to such changes and also to other advancements in positioning technologies, applications, infrastructures!
• Propagation of co-ordinates and uncertainties via a rigorous, nationwide adjustment of geodetic information.
• Accurate traceable connection to ITRF
• Support positioning with HORIZ uncertainties < 20mm, VERT < 50mm
• 3D with a national Geoid model
• Seamlessly aligned with positioning infrastructure and services.
• Enable time-based correction plate and deformation models.
• Users contribute measurements to an automated system for exchange of geodetic data.
• Products and services are delivered through web based systems
Characteristics of a modernised NT GRS
NT Spatial 2015 - New Positioning Technologies and Spatial Techniques Forum
What does “modernisation” mean from a FIG perspective
?
GRS = geospatial reference system = geodetic framework !
To upgrade the accuracy and integrity of our GRS
and this includes GDA !
To cater for the users demand for high accuracy and reliable positioning!
To utilise vast amounts of geospatial data!
To mange the dynamics of the earth - Initially 1.8m change and then after it is managing tectonic plate
movement of 70mm / year and local deformation
Summary to date......
Progress towards a modernised NT GRS
NT Spatial 2015 - New Positioning Technologies and Spatial Techniques Forum
1. Continue GNSS CORS Infrastructure Development
Kidman Springs May 2015
• 12 m diameter radio telescope ; co -
located with GNSS CORS; 1 of 3 telescopes in Australia.
• Busiest in the southern hemisphere array – South Africa, NZ
• 178 days of observing in 2014; will observe
235 sessions in 2015. • Assist’s with -
a. The enhancement of the International Celestial Reference Frame
b. Measuring and monitoring the motion and deformation of the Australian plate
c. Improves the overall quality of data and measurement error – from “cm” to “mm”
Progress towards a modernised NT GRS
NT Spatial 2015 - New Positioning Technologies and Spatial Techniques Forum
2. Support VLBI infrastructure – Katherine CDU
Progress towards a modernised NT GRS
NT Spatial 2015 - New Positioning Technologies and Spatial Techniques Forum
3. Refinement and adoption new survey control standards and processes for the modernised datum (SP1, GDA Tech manual etc)
4. Prepare and maintain a RINEX archive of GNSS measured survey control points. 5. Cleanse and validate existing survey control datasets 6. Perform GNSS field observations to connect the existing GDA94
datasets to the new ‘GNSS CORS’ GRS framework 7. Convert survey control datasets into DynaNet format 8. Ensure survey control database is operational 9. Plan and begin working with users to implement a new geodetic
datum (includes tools and utilities to support change)
XXV FIG Congress 16-21 June 2014, Kuala Lumpur, Malaysia Progress Towards a New Geodetic Datum for Australia
National GNSS CORS Solution
National Adjustment
of Australian Terrestrial Reference Frame (ATRF)
National GNSS Campaign Solution
Jurisdictional Adjustments
AUSPOS 6hr+ GNSS sessions
APREF
Progress towards a modernised NT GRS
NT Spatial 2015 - New Positioning Technologies and Spatial Techniques Forum
10. Propagate GDA2020 Co-ordinates and Uncertainties to a reference epoch of 1 January 2020
Fully rigorous geometric adjustment aspire for an all station and observations adjustment (down to the street corner) phased adjustment strategy work flows managed automatically (using e-Geodesy technology)
Progress towards a modernised NT GRS
NT Spatial 2015 - New Positioning Technologies and Spatial Techniques Forum
11. Develop time based correction, plate tectonic and deformation models.
12. Maintenance of “working surfaces” ( i.e. AHD ) and on going
development of tools / utilities to support these surfaces and datasets.
13. Expand recognised value standards of position – densification of Regulation 13 certificates
Time
GDA94
2010 2015 2020
Interim ‘GDA2020’ Semi-dynamic Epoch: 2020.0 + Deformation
Re-adjust annually
Dynamic
Epoch: Current + Deformation
Defined 1994
ATRF
Progress towards a modernised NT GRS
Roadmap of the NT GRS and GDA2020
• Promoting, marketing, “selling” the concepts and change!
• Tools and education of users to assist implementation! • Justification of activities – RESOURCING!
• Working surfaces • Quality and integrity of datasets
Challenges
NT Spatial 2015 - New Positioning Technologies and Spatial Techniques Forum
Presentation material sourced from
• FIG Comm 5
• UN GGIM AP
• ICSM PCG
THANKS FOR LISTENING !
Acknowledgments
NT Spatial 2015 - New Positioning Technologies and Spatial Techniques Forum
A coordinated whole-of-government approach to building a NPI that supports Positioning, Navigation & Timing (PNT) in Australia. A recognised need to identify and address government, industry and research positioning requirements for: A vision to assure instantaneous, reliable and fit-for-purpose PNT services anywhere and anytime across the Australian landscape and beyond.
• Accuracy • Open Data • Integrity • Standardisation
• Certification • Interoperability • Risk mitigation • Privacy
National Positioning Infrastructure (NPI)
NT Spatial 2015 - New Positioning Technologies and Spatial Techniques Forum
Improved Governance
Ground Infrastructure Development
GNSS Analysis
Capability
Data & Service Delivery
• PNT Working Group & NPI Advisory Board established
• Engage key government, industry and research stakeholders
• Facilitate standards adoption and data sharing
• Upgrade national GNSS ground infrastructure
• Facilitate international engagement and collaboration
• Develop and validate GNSS products and services (Analysis Capability)
• Investigate ground and space-based delivery systems
• Mitigate vulnerabilities
NT Spatial 2015 - New Positioning Technologies and Spatial Techniques Forum
NPI Progress / Planning
Chaired by Geoscience Australia. Reports to the Space Coordination Committee (SCC). Draws together key Australian Government agencies involved in PNT to advise the SCC on the status and future of positioning in Australia. Quarterly meetings with presentations invited from industry. Key discussion points for 2014 include: • Spectrum management • Status and capabilities of new GNSS • International engagement • Hosting of GNSS ground infrastructure • Engagement on NPI planning
NT Spatial 2015 - New Positioning Technologies and Spatial Techniques Forum
Positioning, Navigation & Timing Working Group
• Established December 2014 to advise GA on developing and implementing the NPI. • Ten permanent members (outside of GA) nominated from government, industry and
research • Membership drawn from individual experts representing key sector groups across Australia
and New Zealand, including:
• Technical Working Groups (TWG) will be commissioned to address key issues and priorities for the NPI, including infrastructure management and minimum performance standards.
‘Instantaneous, reliable and fit-for-purpose access to position and timing information anytime and anywhere across the Australian landscape and its maritime
jurisdictions.’
Improved Governance
Ground Infrastructure Development
GNSS Analysis
Capability
Data & Service Delivery
o Transport o Spatial o Research o State/Territory Government o Maritime
o Equipment Manufacturers o Engineering/Construction o Aviation o Agriculture o Australian Government
NT Spatial 2015 - New Positioning Technologies and Spatial Techniques Forum
NPI Advisory Board