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Antarctic Geodesy Field Report 2006-2007 - N Brown and A Woods

Entry ID: survey_2006-2007_geodesy

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Summary

Abstract: Taken from sections of the report:

In recent years, Geoscience Australia (GA) has increased its capability on the Antarctic continent with the installation of Continuous Global Positioning System (CGPS) sites in the Prince Charles Mountains and Grove Mountains. Over the course of the 2006/07 Antarctic summer, Alex Woods and Nick Brown from Geoscience Australia (GA) collaborated with Dan Zwartz of ... the Australian National University (ANU) to install new CGPS sites at the Bunger Hills and Richardson Lake and perform maintenance of the CGPS sites at the Grove Mountains, Wilson Bluff, Daltons Corner and Beaver Lake.

The primary aim of the CGPS sites is to provide a reference frame for Antarctica, which is used to determine the long-term movement of the Antarctic plate. Data from Casey, Mawson and Davis is supplied to the International GPS Service (IGS) and in turn used in the derivation of the International Terrestrial Reference Frame (ITRF). The sites also open up opportunities for research into post-glacial rebound and plate tectonics.

In many respects CGPS sites in Antarctica are still in their infancy. Since the mid 1990's Geoscience Australia and the Australian National University have been testing new technology and various methods to determine the most effective way of running a CGPS site in Antarctica.

A more detailed review of Australia's involvement in Antarctic GPS work can be found in (Corvino, 2004)

In addition, a reconnaissance survey was undertaken at Syowa Station to determine whether a local tie survey could be performed on the Syowa VLBI antenna in the future. Upgrades were made to the Davis and Mawson CGPS stations and geodetic survey tasks such as reference mark surveys, tide gauge benchmark levelling and GPS surveys were performed at both Davis and Mawson stations. In addition, work requested by Geoscience Australia's Nuclear Monitoring Project, the Australian Government Antarctic Division (AGAD) and the University of Tasmania (UTAS) were completed.

The 2006/07 Geoscience Australia Antarctic expedition proved to be one of the most successful Antarctic seasons by geodetic surveyors from Geoscience Australia. All intended field locations were visited and all work tasks were completed.

Background
The primary aim of the CGPS sites is to provide a reference frame for Antarctica, which is used to determine the long-term movement of the Antarctic plate. Data from Casey, Mawson and Davis is supplied to the International GPS Service (IGS) and in turn used in the derivation of the International Terrestrial Reference Frame (ITRF). The sites also open up opportunities for research into post-glacial rebound and plate tectonics.

In many respects CGPS sites in Antarctica are still in their infancy. Since the mid 1990's Geoscience Australia and the Australian National University have been testing new technology and various methods to determine the most effective way of running a CGPS site in Antarctica.

Dr John Gibson from The University of Tasmania requested that Alex Woods and Nick Brown collect moss samples from any locations visited during the Antarctic summer field season. While working in the field only a few moss specimens were found. No moss or lichen specimens were observed at locations such as Wilson Bluff, Dalton Corner, Beaver Lake or the Grove Mountains. Moss samples were collected at Richardson Lake and Mawson Station and these samples were frozen after collection and returned to Australia.

This work contributed towards AAS (ASAC) project 1159.

Related URL

Link: GET DATA

Description: Download the survey report

Geographic Coverage

(Click for Interactive Map)

Spatial coordinates

N: -65.0

S: -70.0

E: 101.0

W: 60.0

Temporal Coverage

Start Date: 2006-12-23

Stop Date: 2007-02-25

Location Keywords

CONTINENT > ANTARCTICA > Beaver Lake

CONTINENT > ANTARCTICA > Davis

Science Keywords

LAND SURFACE > TOPOGRAPHY

LAND SURFACE > TOPOGRAPHY > CONTOURS

ISO Topic Category

BIOTA

IMAGERY/BASE MAPS/EARTH COVER

Platform

FIELD INVESTIGATION

FIELD SURVEYS

Instrument

GPS > Global Positioning System

GPS RECEIVERS

TIDE GAUGES

Cameras

Quality See the report for further information. The values provided in spatial coverage are approximate only.

Prior to departure, Nick Brown and Alex Woods met with Henk Brolsma from the Mapping Group at the Australian Antarctic Division, who listed several survey tasks to be undertaken, on behalf of the mapping group, while in Antarctica. Most of the work was completed, including lake level ...

Access Constraints The survey report is available for download from the provided URL.

Use Constraints This data set conforms to the PICCCBY Attribution License
(http://creativecommons.org/licenses/by/3.0/).

Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=survey_2... when using these data.

Ancillary Keywords

Survey

Geodesy

Data Set Progress

COMPLETE

Data Center

Australian Antarctic Data Centre, Australia

Data Center URL: http://data.aad.gov.au

Data Center Personnel
Name: DATA OFFICER AADC Phone: +61 3 6232 3244 Fax: +61 3 6232 3351 Email: metadata at aad.gov.au Contact Address: Australian Antarctic Division 203 Channel Highway City: Kingston Province or State: Tasmania Postal Code: 7050 Country: Australia

Distribution

Distribution Media: HTTP

Distribution Size: 5.4 MB

Distribution Format: pdf

Fees: Free

Personnel

HENK BROLSMA

Role: INVESTIGATOR

Role: TECHNICAL CONTACT

Phone: +61 3 6232 3528

Fax: +61 3 6232 3351

Email: mapping at aad.gov.au

Contact Address:

Australian Antarctic Division

203 Channel Highway

City: Kingston

Province or State: Tasmania

Postal Code: 7050

Country: Australia

DAVE CONNELL

Role: DIF AUTHOR

Phone: +61 3 6232 3244

Fax: +61 3 6232 3351

Email: dave.connell at aad.gov.au

Contact Address:

Australian Antarctic Division

203 Channel Highway

City: Kingston

Province or State: Tasmania

Postal Code: 7050

Country: Australia

Creation and Review Dates

DIF Creation Date: 2012-07-29

Last DIF Revision Date: 2012-07-31

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