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Pacific Sea Level and Geodetic Monitoring Project, Levelling & GNSS Monitoring Survey Report Funafuti, Tuvalu, October 2019

<div>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.</div><div><br></div><div>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.</div><div>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.</div><div><br></div><div>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 Funafuti, Tuvalu in October of 2019. It also provides an updated height of the tide gauge derived from GNSS time series analysis and precise levelling observations.</div><div><br></div>

Simple

Identification info

Date (Creation)
2023-05-14T22:00:00
Date (Publication)
2024-11-20T05:41:28
Citation identifier
Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/149793

Citation identifier
Digital Object Identifier/https://dx.doi.org/10.26186/149793

Cited responsible party
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

GA Record

Issue identification

2024/55

Purpose

Describes the vertical motion of the tide gauges in Pacific Island Countries.

Status
Completed
Point of contact
Role Organisation / Individual Name Details
Resource provider

Space Division

External Contact
Point of contact

Commonwealth of Australia (Geoscience Australia)

Voice
Point of contact

Thomas, B.

Internal Contact
Spatial representation type
Topic category
  • Geoscientific information

Extent

N
S
E
W


Maintenance and update frequency
Not planned

Resource format

Title

Product data repository: Various Formats

Website

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

Project
  • PSLGMP

Project
  • Pacific Sea Level and Geodetic Monitoring Project

Project
  • COSPPac

Project
  • Climate and Oceans Support Program in the Pacific

Project
  • Tuvalu

Keywords
  • geodesy

Keywords
  • land motion

Keywords
  • pacific

Keywords
  • Tuvalu

theme.ANZRC Fields of Research.rdf
  • Geodesy

Keywords
  • Published_External

Resource constraints

Title

Creative Commons Attribution 4.0 International Licence

Alternate title

CC-BY

Edition

4.0

Website

https://creativecommons.org/licenses/by/4.0/

Addressee
Role Organisation / Individual Name Details
User

Any

Use constraints
License
Use constraints
Other restrictions
Other constraints

© Commonwealth of Australia (Geoscience Australia) 2024

Resource constraints

Title

Australian Government Security Classification System

Edition date
2018-11-01T00:00:00
Website

https://www.protectivesecurity.gov.au/Pages/default.aspx

Classification
Unclassified
Classification system

Australian Government Security Classification System

Associated resource

Association Type
Was informed by
Title

Tuvalu Levelling Survey Report - 2009

Citation identifier
69407

Citation identifier
a05f7892-ed67-7506-e044-00144fdd4fa6

Website

http://pid.geoscience.gov.au/dataset/ga/69407

Link to eCat metadata record landing page

Associated resource

Association Type
Was informed by
Title

EDM Height Traversing Levelling Survey Report: Tuvalu, August 2010

Citation identifier
73816

Citation identifier
bb8dcb90-8d71-3cc3-e044-00144fdd4fa6

Website

http://pid.geoscience.gov.au/dataset/ga/73816

Link to eCat metadata record landing page

Associated resource

Association Type
Was informed by
Title

EDM Height Traversing Levelling Survey Report: Funafuti, Tuvalu, May 2012

Citation identifier
76793

Citation identifier
e2b4c03e-3a4b-4e02-e044-00144fdd4fa6

Website

http://pid.geoscience.gov.au/dataset/ga/76793

Link to eCat metadata record landing page

Associated resource

Association Type
Was informed by
Title

EDM Height Traversing Levelling Survey Report: Funafuti, Tuvalu, July 2013

Citation identifier
78481

Citation identifier
ea62976f-f814-1ad4-e044-00144fdd4fa6

Website

http://pid.geoscience.gov.au/dataset/ga/78481

Link to eCat metadata record landing page

Language
English
Character encoding
UTF8

Distribution Information

Distributor contact
Role Organisation / Individual Name Details
Distributor

Commonwealth of Australia (Geoscience Australia)

Voice facsimile
OnLine resource

Download the Record (pdf) [2.9 MB]

Download the Record (pdf) [2.9 MB]

Distribution format
  • pdf

    File decompression technique

    nil

Resource lineage

Statement

<div>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.</div><div><br></div>

Metadata constraints

Title

Australian Government Security Classification System

Edition date
2018-11-01T00:00:00
Website

https://www.protectivesecurity.gov.au/Pages/default.aspx

Classification
Unclassified

Metadata

Metadata identifier
urn:uuid/e65ac00c-ebab-4961-863c-53ea0f812ef4

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

Thomas, B.

Internal Contact

Type of resource

Resource scope
Document
Name

GA Record

Alternative metadata reference

Title

Geoscience Australia - short identifier for metadata record with

uuid

Citation identifier
eCatId/149793

Metadata linkage

https://ecat.ga.gov.au/geonetwork/srv/eng/catalog.search#/metadata/e65ac00c-ebab-4961-863c-53ea0f812ef4

Date info (Creation)
2024-11-20T05:32:24
Date info (Revision)
2024-11-20T05:32:24

Metadata standard

Title

AU/NZS ISO 19115-1:2014

Metadata standard

Title

ISO 19115-1:2014

Metadata standard

Title

ISO 19115-3

Title

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

 
 

Spatial extent

N
S
E
W


Keywords

COSPPac Climate and Oceans Support Program in the Pacific PSLGMP Pacific Sea Level and Geodetic Monitoring Project Tuvalu
theme.ANZRC Fields of Research.rdf
Geodesy

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