Andrick LalAndrick LalProject Officer – SurveyingProject Officer – Surveying

Geodetic Infrastructure in the Pacific Island CountriesGeodetic Infrastructure in the Pacific Island Countries

GIS Conference - FIJI 18GIS Conference - FIJI 18thth November 2013 November 2013

Pacific Sea Level Monitoring Project (PSLMP)Pacific Sea Level Monitoring Project (PSLMP)

Geodetic Infrastructure of the Pacific Islands Countries (Cook Islands, Federated States of Micronesia, Fiji, Tonga, Tuvalu, Marshall Islands, Solomon Islands, Nauru, Kiribati, Papua New Guinea, Samoa & Vanuatu is based on the Pacific Sea Level Monitoring Project (COSPPac).

PSLMP is a data gathering network that enables us to “monitor” what the sea level and how the tectonics in the region is doing today, and to provide data to support the work of meteorologists and climatologists to predict with a moderate-to-high degree of confidence climate variability over the next three to six months.

With its combination of precise levelling, CGNSS (ITRS) and highly accurate sea level monitoring, the PSLMP is acknowledged in the climate scientific community as one of the best networks in the world.

CORS – PSLMP and IGS StationsCORS – PSLMP and IGS Stations

How PSLMP can play an important role?How PSLMP can play an important role?

• CGNSS Stations

• (Horizontal Datum) – ITRS

• SEAFRAME (Tide Gauge) Stations

• (Vertical Datum) – Chart /MSL Datum

The Geodetic Stations ensure compatibility across various geographic, land and survey systems at the local, regional, national and global level.

It is becoming the reference layer for the cadastre or land administration system, transit / road networks, infrastructure corridors like gas, water, power, communications etc.

Geodetic ContributorsGeodetic Contributors

Geodetic Survey Network (Control Surveys)Geodetic Survey Network (Control Surveys) Unifying Height Datum (Vertical Datum)Unifying Height Datum (Vertical Datum) Determination of Transformation ParametersDetermination of Transformation Parameters Cadastral & Engineering SurveysCadastral & Engineering Surveys Digital Elevation ModelsDigital Elevation Models Coastal Zone ManagementCoastal Zone Management MitigationMitigation

Some Examples……Some Examples……

• Pacific HYCOS Boreholes SurveysPacific HYCOS Boreholes Surveys

• Photo Control Surveys for high resolution spatial Photo Control Surveys for high resolution spatial imagesimages

• Beach Profile SurveysBeach Profile Surveys

• Static GPS & Topographical SurveysStatic GPS & Topographical Surveys

• Regional Maritime Boundaries ProjectRegional Maritime Boundaries Project

Tide Gauge – SEAFRAME StationsTide Gauge – SEAFRAME Stations

FSM Tide Gauge Sensor FSM Tide Gauge Hut

All parameters (water levels, wind, air and sea temperatures, atmospheric pressure) are sampled at one second intervals.

CORS Station – LAUTCORS Station – LAUT

LAUT Pillar LAUT CGNSS HUT

CGNSS network monitor movements (Horizontal & Vertical) in the earth's crust at the SEAFRAME tide gauges. If movements such as subsidence or tectonic shifts do happen, the system will allow sea level monitoring to be adjusted to the earth's movement to within millimetres

PSLMP – Geodetic StationsPSLMP – Geodetic Stations

• CORS Stations – Pillar Setup

• Deep Survey Benchmarks

• Temporary Benchmarks – Stainless Steel Pins- Provides links from the Tide Gauge to the CGNSS Stations

Locality DiagramsLocality Diagrams

AUSPOS – online GPS ProcessingAUSPOS – online GPS Processing

http://www.ga.gov.au/earth-monitoring/geodesy/auspos-online-gps-processing-service.html

Online GPS Survey Processing CentreOnline GPS Survey Processing Centre

PSLMP StationsPSLMP Stations

• Time Series Datasets

• Weekly Solutions of Asia Pacific Reference Framework

• Weekly Station Coordinates and Performance

VINAKA VAKA LEVU