Product catalogue
Pacific Sea Level and Geodetic Monitoring Project Levelling & GNSS Monitoring Survey Reports: Rarotonga, Cook Islands, May 2019
The Australian Bureau of Meteorology (BoM), Geoscience Australia (GA) and the Pacific Community (SPC) work together on the Australian Aid funded Pacific Sea Level and Geodetic Monitoring Project (PSLGMP). The project is focused on determining the long-term variation in sea level through observation and analysis of changes in the height of the land (using Global Navigation Satellite System (GNSS) data) and changes in the sea level (using tide gauges managed and operated by the BoM. It is the role of GA and SPC to provide information about ‘absolute’ movement of the tide gauge (managed by BoM) using GNSS to continuously monitor land motion and using levelling (SPC) to measure the height difference between the tide gauge and GNSS pillar every 18 months.
Land movement caused by earthquakes, subsidence and surface uplift have an important effect on sea level observations at tide gauges. For example, a tide gauge connected to a pier which is subsiding at a rate of 5 mm per year would be observed as a rate of 5 mm per year of sea level rise at the tide gauge. Because of this, it is important to measure, and account for, the movement of land when measuring ‘absolute’ sea level variation - the change in the sea level relative to the centre of the Earth. Relative sea level variation on the other hand is measured relative to local buildings and landmass around the coastline.
Geoscience Australia’s work enables more accurate 'absolute' sea level estimates by providing observations of land motion which can be accounted for by BoM when analysing the tide gauge data.
This report provides the results of the GNSS monument monitoring survey & high precision level survey completed between the Sea Level Fine Resolution Acoustic Measuring Equipment (SEAFRAME) tide gauge and the GNSS Continuously Operation Reference Station (CORS) in Rarotonga, Cook Islands from 24th to 31st May 2019. It also provides an updated ellipsoidal height of the tide gauge derived from GNSS time series analysis and precise levelling observations.
Simple
Identification info
- Date (Creation)
- 2023-05-10
- Date (Publication)
- 2023-09-13
- Citation identifier
- Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/148878
- Citation identifier
- Digital Object Identifier/https://dx.doi.org/10.26186/148878
- Cited responsible party
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Role Organisation / Individual Name Details Publisher Commonwealth of Australia (Geoscience Australia)
Voice Author Lal, A.
External Contact Author Rattan, V.
External Contact Author Kalouniviti, M.
External Contact Author Brown, N.
Internal Contact Author Thomas, B.
Internal Contact
- Name
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GA Record
- Issue identification
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RECORD 2023/025
- Purpose
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Describes the vertical motion of the tide gauges in Pacific Island Countries.
- Status
- Completed
- Point of contact
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Role Organisation / Individual Name Details Resource provider Space Division
External Contact Point of contact Commonwealth of Australia (Geoscience Australia)
Voice Point of contact Hall, L.S.
External Contact
- Spatial representation type
- Topic category
-
- Geoscientific information
Extent
))
- Maintenance and update frequency
- As needed
Resource format
- Title
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Product data repository: Various Formats
- Website
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Data Store directory containing the digital product files
Data Store directory containing one or more files, possibly in a variety of formats, accessible to Geoscience Australia staff only for internal purposes
- Keywords
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geodesy
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- Keywords
-
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land motion
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- Keywords
-
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Published_External
-
- Keywords
-
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Pacific
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- theme.ANZRC Fields of Research.rdf
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Geodesy
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Resource constraints
- Title
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Creative Commons Attribution 4.0 International Licence
- Alternate title
-
CC-BY
- Edition
-
4.0
- Addressee
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Role Organisation / Individual Name Details User Any
- Use constraints
- License
- Use constraints
- Other restrictions
- Other constraints
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© Commonwealth of Australia (Geoscience Australia) 2023
Resource constraints
- Title
-
Australian Government Security Classification System
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
- Classification system
-
Australian Government Security Classification System
- Language
- English
- Character encoding
- UTF8
Distribution Information
- Distributor contact
-
Role Organisation / Individual Name Details Distributor Commonwealth of Australia (Geoscience Australia)
Voice facsimile
- OnLine resource
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Download the Record (pdf) [1.77 MB]
Download the Record (pdf) [1.77 MB]
- Distribution format
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pdf
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Resource lineage
- Statement
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These reports provide the results of the GNSS monitoring survey & high precision level survey completed between the Sea Level Fine Resolution Acoustic Measuring Equipment (SEAFRAME) tide gauge and the GNSS Continuously Operation Reference Station (CORS) Pacific Island Countries. It also provides an updated height of the tide gauge derived from GNSS time series analysis and precise levelling observations.
Metadata constraints
- Title
-
Australian Government Security Classification System
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
Metadata
- Metadata identifier
-
urn:uuid/498c6ab7-0c1f-452b-aaf8-e3688656d20a
- Title
-
GeoNetwork UUID
- Language
- English
- Character encoding
- UTF8
- Contact
-
Role Organisation / Individual Name Details Point of contact Commonwealth of Australia (Geoscience Australia)
Voice Point of contact Hall, L.S.
External Contact
- Title
-
Pacific Sea Level and Geodetic Monitoring Project Levelling & GNSS Monitoring Survey Reports x 10
- Citation identifier
- 06538c9b-8b3d-4937-90fa-497569fc83b8
- Citation identifier
- 147928
Type of resource
- Resource scope
- Document
- Name
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GA Record
Alternative metadata reference
- Title
-
Geoscience Australia - short identifier for metadata record with
uuid
- Citation identifier
- eCatId/148878
- Date info (Creation)
- 2023-08-15T05:15:59
- Date info (Revision)
- 2023-08-15T05:15:59
Metadata standard
- Title
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AU/NZS ISO 19115-1:2014
Metadata standard
- Title
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ISO 19115-1:2014
Metadata standard
- Title
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ISO 19115-3
- Title
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Geoscience Australia Community Metadata Profile of ISO 19115-1:2014
- Edition
-
Version 2.0, September 2018
- Citation identifier
- http://pid.geoscience.gov.au/dataset/ga/122551