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GeoReach Newsletter of the SCAR GSSG, Vol 2, No. 1, January 2003 " /> " />

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GeoReach - Volume 2, Number 1 January 2003


This can also be viewed as a PDF file [105 Kb]

From the CO's Desk

Dear Geoscience Antarcticans,

The last part of 2002 has seen great activity, both the usual field work and a number of major meetings involving Antarctic geosciences. I went to the American Geophysical Union Fall meeting in San Francisco and attended a planning meeting for the Antarctic Climate Evolution (ACE) project plus sessions of posters and papers on Antarctic and Southern Ocean climate. The ACE sessions in particular showed the potential power of linking modelling with field observations in providing new insights into Antarctic climate.

Since the last newsletter, the CEP has met and considered the Environmental Impacts of the marine acoustic technology report. It was generally welcomed although there were some criticisms of it. Since then, there has been an incident involving the beaching of beaked whales in a region where seismic data were being collected for research purposes. Although I have no details on the circumstances of the beaching, this highlights the need for careful planning of surveys. To help with this, we have decided to post the draft version of the report (Version 1.2) on the Geoscience web site to help those involved in planning marine surveys to understand the issues and maybe avoid potential problems in the Antarctic. This version will be updated when comments come in from expert reviewers so it is not final but I believe an interim report is better than the current vacuum.

On a worrying note, the Geoscience SSG secret weapon, Glenn Johnstone will be leaving Geoscience Australia to move to the UK. Glenn has done a wonderful job keeping the former Geodesy and Geographic Information Working Group functioning smoothly and has already made a major contribution to the Geoscience SSG. I’m sure we would all like to thank him for his efforts and wish him all the best in his change of direction and hope he will still be involved in SCAR.

I would like to conclude by thanking everyone who has participated in SCAR in 2002 and wishing everyone a safe and happy 2003.

Cheers

Phil O’Brien, Chief Officer, GSSG

Acoustics Report

The SCAR Ad Hoc Group on Marine Acoustic Technology and the Environment has released its report on "Impacts of Marine Acoustic Technology on the Antarctic Environment".

The following is an extract from the Executive Summary of the report:

"The working group felt that the evidence available did not justify a ban on seismic surveys or scientific echo sounders in Antarctic waters, however, surveys should be examined on a case by case basis and mitigation strategies should be used to reduce the risk to Antarctic wildlife from high power, low frequency sources. Acoustic releases and similar low power, occasional source were not considered a threat to wildlife.

Mitigation strategies should be investigated to evaluate their effectiveness and there should be a regular review of mitigation strategies and the progress of research in the field to ensure that new research findings will be available to the Antarctic community.

Research into the hearing and reaction to noise of Antarctic animals should be encouraged as should research into sound propagation conditions around Antarctica.

Records of the locations, timing, duration, frequency, and nature of hydroacoustic and other activities should be maintained to permit retrospective assessment of the likely causes of any future observed changes in the distributions, abundance, or productivity of the potentially affected species and populations"

The full report is available (as a 3.2Mb PDF document) from the GSSG web site at: www.geoscience.scar.org/geophysics/

ATCM / CEP meetings

Both the Antarctic Treaty Consultative Meeting (ATCM) and the Committee on Environmental Protection (CEP) held their annual meeting, this time in Warsaw, Poland from 10-20 September 2002.

The following report has been prepared by Mr Tom Maggs, of the Australian Antarctic Division, who attended both meetings. My thanks to him for providing this report to us.

"At CEP V we endorsed a number of intersessional tasks and foreshadowed discussions on several significant issues for CEP VI, as summarised below from the CEP V Final Report.

The Committee looks forward to news from the Czech Republic and Romania on their progress with ratifying the Madrid Protocol and becoming members of the CEP.

ATCM XXV flagged the issue of tourism as a major focus of ATCM XXVI. It has yet to be decided how the ATCM will be advised of the operational, environmental, and policy aspects of tourism.

The Committee expects to consider three draft Comprehensive Environmental Evaluations at CEP VI.

For CEP VI, the 120-day deadline for prior circulation of draft CEE falls on 9 February 2003. This allows a little fewer than ten weeks in which to convene contact groups, agree on terms of reference, complete the discussions and prepare a working paper report to CEP VI.

The Intersessional Contact Group (ICG) on the Lake Vostok drilling program (Russian Federation) has already been convened by Jean-Jacques Reyser of France, and it is hoped that the revised draft CEE will be available for the group’s consideration in February 2003.

Draft CEEs are expected from New Zealand on the ANDRILL program, and from the Czech Republic on the proposed new station for James Ross Island.

Discussion commenced on these issues, and substantive input is expected at the next meeting:

EIA general matters

Conservation of Antarctic Fauna and Flora

Area protection and management

Monitoring

State Of the Environment reporting

Information exchange

Cooperation

Election of officers

Preparations for CEP VI

Australia is in the process of taking over administration of the CEP website from Norway, and I expect to be able to advise you of the new URL in the coming weeks. Until that time the site will continue to function as usual from the cep.npolar.no server, with thanks to Norway."

SCAR has been given a number of tasks to undertake and report back on at the next ATCM.

A full copy of the ATCM report [5.01Mb MS Word document of 286 pages] can be found at:

www.25atcm.gov.pl/docs/conference?idk=19

A full copy of the CEP report [364Kb MS Word document] can be found at:

www.25atcm.gov.pl/docs/conference?idk=20

Cyberatlas funded

According to Prof Fraser Taylor, the Cybercartographic Atlas of Antarctica - a project of the Geospatial Information Group - "just received word that our application for major funding to the Social Sciences Research Council of Canada for our project has come through. Therefore we will be able to move ahead on work on the …Atlas."

Congratulations to Prof Taylor and his team. We'll keep you informed of progress in this project.

You can find more information on the project at: www.carleton.ca/geography/geography/Taylor_research/index.htmll

PCMEGA Activities for 2002/03

In the Austral summer of 2002 - 2003, a group of 35 expeditioners from Australia and Germany (the Prince Charles Mountains Expedition of Germany - Australia [PCMEGA]) are undertaking a scientific research program in a remote and spectacular mountain range 500 km south of Australia's Mawson station.

"The PCMEGA science program plans to investigate geological and glaciological histories and past climates in the southern Prince Charles Mountains. This will be of national significance as it will identify continental geological / glaciological processes occurring in Australia and Antarctica, prior to and during their separation about 120 million years ago, and relate them to present day observations.

The team of geologists, geophysicists and support staff will spend two and a half months in the southern Prince Charles Mountains (PCMs) living in tents and travelling by helicopters, quads and skidoos to outlying mountain peaks rising from the polar ice cap."

Regular newsletters on PCMEGA activities are available from the Australian Antarctic Division's web site at: www-new.aad.gov.au/default.asp?content=dynamic&title=Weekly+newsletter&casid=3940&docid=2951&type=1&children=

Komsomolskiy seismic installation

Dr Anya Reading from the ANU Research School of Earth Sciences (and member of the ANTEC Scientific Programme Planning Group) has been undertaking research activities in the southern Prince Charles Mountains (SPCM) region - the following is an extract from a report posted on the RSES web site.

"Komsomolskiy Peak was discovered by a Soviet air crew in 1958 on a flight from the Pole of Inaccessibility to Mirny station. It was photographed by ANARE in 1960 and the first known ground visit was in 1973 when surveyor John Manning and geologist Dick England flew to the summit in Hughes 500 helicopters.

In November 2002, seismologist Dr Anya Reading visited the mountain in order to set up a seismic recording station, take rock samples and make a preliminary selection of a site for a permanent Global Positioning System (GPS) site."

More information and photographs can be found at: rses.anu.edu.au/geodynamics/gps/antarctic/koms.html

GPS installations in the SPCM's

The SPCM's have also been a hive of activity for scientists from RSES and Geoscience Australia installing remote GPS stations.

Gary Johnston and Paul Digney from the Geodesy Group of Geoscience Australia's National Mapping Division file the following report.

"We now have GPS and Gravity data on Wilson Bluff, Burke Ridge, Mt Borland, Mt Twigg, Mt Maguire and Mt Newton. It ranges from 4 to six days. We have installed the gear at Cumpston Massif, Mt Stinear, Mt Johns, Barkell Platform, Harbour Bluff and Rooster Point trig (McCue Bluff). We have also done Gravity at these sites.

In mid-January we collect them and move them to Mt Bird, Mt Rubin, Mt Ruker, Mt Rymill, Mt Seddon and Seavers Nunataks. A week later we will collect them from these sites and pack for return to Australia. I will also remove the Mt Creswell base station. After that we fly to Wilson Bluff to pack up the base station.

We then fly in the twin otter back to Davis via the Grove Mountains. We are likely to spend 10 days in the Davis area."

The locations mentioned in this report can be found on a map provided by the Australian Antarctic Division at: aadc-maps.aad.gov.au/aadc/mapcat/display_map.cfm?map_id=12892

Paul Tregoning from RSES at the Australian National University has set up remote GPS stations in 4 locations; Beaver Lake, Landing Bluff, Dalton Corner and Komsomolskiy Peak.

Through the use of Iridium satellite modems data will be transmitted from these last two remote sites on a daily basis back to RSES.

More information about these stations (including diagnostic data) can be found at: rses.anu.edu.au/geodynamics/gps/antarctic/index.html

ICESat launched

"The ICESat (Ice, Cloud and land Elevation Satellite) mission will provide multi-year elevation data needed to determine ice sheet mass balance as well as cloud property information, especially for stratospheric clouds common over polar areas. It will also provide topography and vegetation data around the globe, in addition to the polar-specific coverage over the Greenland and Antarctic ice sheets."

ICESat was launched on time today, January 13, 2003 (at 6:45 pm Austin time). At the time of writing ICESat has successfully separated and deployed solar panels. There are several milestones ahead, but the mission is off to a great start.

The GPS receivers will be turned on about 3 days after launch. The spacecraft contractor will be spending the first several weeks in spacecraft "shakedown" tests.

More information on ICESat can be found at: icesat.gsfc.nasa.gov

Stop Press: Gary Johnston reports that the ground survey for ICESAT has been started. It covers a 600m by 4.5km area about 11km NW of Mt Creswell. A GPS was fixed to the baggage rack of a skidoo to mark out the area and the base station at Mt Creswell was increased to a 5 second capture rate.

ANTEC news

Several workshops and symposia relevant to Antarctic Neotectonics have been held since the SCAR meeting in Shanghai.

In the USA, a workshop convened by Carol Finn and others was held in Denver, 5-8 August, entitled "REVEAL: Remote Views of the Antarctic Lithosphere" focused on scientific objectives and needs for airborne geophysical data acquisition in Antarctica. Terry Wilson presented related ANTEC objectives at the workshop. A preliminary version of the workshop report can be found at: crustal.usgs.gov/antarctica/.

In October, Slawek Tulazcyk and others convened a workshop in Santa Cruz entitled FASTDRILL 2002: Interdisciplinary Polar Research Based on Fast Ice-Sheet Drilling Interdisciplinary science objectives for drilling and sampling of the ice sheets, the ice-bed interface and the bedrock beneath were discussed, and technical requirements outlined. Information can be found at: www.es.ucsc.edu/~tulaczyk/fastdrill.htm. Terry Wilson presented ANTEC objectives within a poster entitled "Drilling in the Antarctic Interior: Neotectonic Objectives".

There was an information meeting for Antarctic scientists held at the Geological Society of America Annual Meeting in Denver in October. Posters and presentations were made on SCAR (by Ross Powell, poster from Chuck Kennicutt), and on ACE (by Rob DeConto), ANTEC (by Terry Wilson), and SALE (by Ross Powell).

An Antarctic Town Meeting was held at the American Geophysical Union in San Francisco in December, in which the new organization of SCAR was explained by Chuck Kennicutt. Overviews of the diverse science initiatives of each of the Scientific Standing Groups and specific outlines of ACE, ANTEC, Permafrost, and SALE were presented. The goal is to encourage more involvement by U.S. scientists in SCAR activities.

Several upcoming events are also of interest to ANTEC scientists:

ACE news

Following a successful international workshop held in June 2002 at the University of Massachusetts, USA, the Antarctic Climate Evolution (ACE) project continued to 'outreach' its plan through a day-long session at the Fall meeting of the American Geophysical Union 2002.

A total of 12 talks and 8 posters were presented at the session. Highlights included back-to-back presentations of integrated ice-ocean-atmosphere modelling by Rob DeConto and Dave Pollard, detailing their study of the roles of atmospheric carbon dioxide and subglacial sediment on Antarctic ice-sheet initiation. Their work was published in the international science journal Nature following the meeting in January. This article received 'News and Views' coverage, by Peter Barrett (who also spoke at AGU), and world-wide media attention.

An ACE website has been developed, and can be accessed at www.ace.scar.org or www.geo.umass.edu/ace/

This web site will make up the forum from which the full ACE proposal will be debated and revised by ACE members (and other interested parties) prior to its submission to SCAR at Easter 2003.

AGU Fall 2002 meeting summary

A number of Antarcticans attended the American Geophysical Union Fall meeting in San Francisco in early December 2002.

It was interesting to note that of the 8,240 abstracts almost 250 of them contained the word Antarctic.

All 551 sessions and 8,240 abstracts for 2002 Fall Meeting have been posted on the AGU web site and abstracts may be accessed by a search tool:

agu.org/meetings/fm02/waisfm02adv.html

AGS'02 meeting summary

Another successful Antarctic Geodesy Symposium, this time being held in Wellington, New Zealand in late November 2002, saw two days of presentations finishing with a short business meeting of the Geodesy Program element of the Expert Group on Geospatial Information (GIG).

Attendees included twelve representatives from six nations: NZ, Australia, Indonesia, China, United States and Japan - a number of New Zealanders also attended the whole or part of the symposium. Notable late withdrawals were from Germany, Poland and Italy who all sent presentations and papers as they were unable to attend.

A major focus of the symposium was the status of regional geodetic networks in Antarctica and their future integration. Tide gauge operation and calibration were discussed at length, as were the new advances in remote GPS operational technology for Antarctic sites.

GIG will be producing a CD-ROM containing the proceedings of AGS'02 (ie. all the papers and PowerPoint presentations). This will be distributed to all GSSG members during February 2003.

You can also visit the AGS'02 web page at: www.geoscience.scar.org/geodesy/ags02/

Call for papers - AGS'03

Following the successes of the previous 4 symposia the GIANT program within GIG plans on holding a 5th Antarctic Geodesy Symposium (AGS'03) in Lviv, Ukraine, from September 15th-17th, 2003

The event will be hosted by the National University "Lviv Polytechnik", in the Ukraine.

One focus of the workshop will be the ongoing and planned Geodesy projects within GIG. Other elements will include:

If you are interested in presenting a paper at the symposium or would like to add an agenda item please contact the organiser directly.

Dr Fedir Zablotskyj
Chair of Geodesy and Astronomy
National University "Lviv Polytechnik"
S.Bandera Str., 12,
Lviv, 79013, Ukraine
Tel: +38-0322-398804
Fax: +38-0322-744300
Email: fzablots@polynet.lviv.ua

Call for papers - GIS Workshop

Following the first International Antarctic GIS workshop in Wuhan, China in 2000 the Geospatial Information Group plans on holding a second GI Technical Experts Meeting of SCAR.

The proposed theme of the workshop is

"GIS projects in Antarctica: Standards & Applications"

The event will be hosted by IPG, University Freiburg in Germany from 7-11 April 2003. IPG has several years of experience in remote sensing and glaciology on the Antarctic Peninsula. Since the year 2000 it has co-ordinated the SCAR King George Island GIS project.

One focus of the workshop will be the ongoing and planned GIS projects on King George Island. Other elements will include:

Potential attendees are invited to send abstracts of papers (approx. 200 words) for inclusion in the program by 15th March 2003. Selected papers of the workshop will be published in "Polarforschung", the journal of the German Society of Polar Research.

Please send abstracts to either
<glennjohnstone@auslig.gov.au> or <steffen.vogt@geographie.uni-freiburg.de>

There will also be a session devoted to the Composite Gazetteer of Antarctica (CGA) to which all attendees are invited.

Up-to-date information can be obtained from the 2nd International Antarctic GIS Workshop website at:

www.geographie.uni-freiburg.de/ipg/forschung/ap3/antarctica/antgis_2003/

Further inquiries should be directed to:

Steffen Vogt
Institut für Physische Geographie
Universität Freiburg
Werderring 4, D-79085 Freiburg, Germany
Tel: +49 (0)761 203 3553
Fax: +49 (0)761 203 3596

Call for papers - TAPMOG

Terrane Processes At The Pacific Margin Of Gondwana (TAPMOG)

A meeting of the British Antarctic Survey, the Tectonic Studies Group of the Geological Society and the Geochemistry Group of the Geological Society and Mineralogical Society to be held at: New Hall College, Cambridge, UK, 5-6 September 2003.

New isotope and geochemical techniques, combined with regional scale multidisciplinary studies, have produced major new insights into the evolution of the Gondwana margin in the Phanerozoic. Terrane processes were active prior to and during break-up of the supercontinent with implications for palaeoenvironmental and tectonic interpretations. This meeting seeks to bring together terrane specialists in a range of disciplines, with a focus on the following topics:

It is intended that refereed papers from this meeting will be published as a Geological Society Special Publication. If you are interested in contributing to the meeting please send an abstract of your paper to either of the convenors:

Convenors:

Alan Vaughan Tel: +44 (0)1223 221419 a.vaughan@bas.ac.uk
Phil Leat Tel: +44 (0)1223 221432 p.leat@bas.ac.uk
British Antarctic Survey, High Cross, Madingley Road, Cambridge CB3 0ET, UK
Fax: +44 (0)1223 362616

Abstract deadline: 1 February 2003
Early registration deadline: 1 March 2003

Invited Speakers: Dr Dick Glen, Geological Survey of New South Wales, Prof John Bradshaw, Canterbury, New Zealand

Upcoming meetings

Next Edition

We plan to produce 4 editions of GeoReach per year and would ask for your contributions on:

Details should be sent to Glenn Johnstone <glennjohnstone@auslig.gov.au>.

The deadline for contributions to the upcoming editions are as follows: