[Location: Location_Category='CONTINENT', Location_Type='ANTARCTICA', Detailed_Location='SOUTH VICTORIA LAND']
New Zealand International Transantarctic Scientific Expedition (NZ ITASE) - Climate variability measured from ice cores taken along the Victoria Land CoastEntry ID: K049_1999_2008_NZ_1
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Abstract: The climate of the Victoria Land Coast is created by the interacting influences of the Dry Valleys, East Antarctic Ice Sheet and the Ross Sea. Slight changes can significantly alter local weather patterns and as such a climate record of the area provides ideal opportunities to study rapid, high frequency climatic variations. International polar ice coring programmes (e.g. GISP and Vostok) have ... provided powerful new insights into Earth's climate back 400,000 years, from the diverse inventory of atmospheric information stored both within the ice and trapped air bubbles. To understand and predict the local response to anthropogenically induced global warming seen in these "global" ice cores, the focus of ice core research in Antarctica is moving to the acquisition of high-resolution regional paleoclimatic archives of annual-scale that overlap with and extend the instrumental records of the last 40 years back several thousand years. This has been a key motivation behind the US-led International Transantarctic Scientific Expedition (ITASE) of which New Zealand is a member.
The New Zealand project's objective is to recover a series of ice cores from glaciers along a 14-degree latitudinal transect of the climatically sensitive Victoria Land coastline and thereby directly contribute a critical dataset to ITASE. The NZ ITASE sites (including two sites at Victoria Lower Glacier, Baldwin Glacier, Wilson Piedmont Glacier, Polar Plateau, Evans Piedmont Glacier, Mt Erebus Saddle, Whitehall Glacier, Skinner Saddle and Gawn Ice Piedmont Glacier with future sites planned at Beardmore Glacier, Roosevelt Island, and coastal sites in West Antarctica) have been chosen to capture and quantify the steep climate gradients from the Scott Coast to the Polar Plateau, the local climate system of the McMurdo Dry Valleys, and the effect of altitude within the Transantarctic Mountains. Coastal sites are especially climate sensitive and show potential to archive local, rapid climate change events that are subdued or lost in the 'global' inland ice core records.
Investigation and datasets include: GPR/GPS surveying to map bedrock topography and internal glacial structure and glacier topography, firn and ice cores to quantify the variability of climate record with analysis of temperature, crystal structure, crystal geometry, density of the snow, melt, dust/tephra occurrence, gas content, porosity, gas bubble size and geometry, snow profiles were analysed for ion content, isotopic ratios, dust content, beta radioactivity, chemical properties and mineralogy to transfer functions with the meterological record, borehole temperature and light penetration, submergence velocity measurements to analyse the mass balance of the glaciers, meterological data and ablation measurements.
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Start Date: 1999-11-24
Paleo Temporal Coverage
Latitude Resolution: 1:1 to 1:3 million
Longitude Resolution: 1:1 to 1:3 million
BIOSPHERE > TERRESTRIAL ECOSYSTEMS > WETLANDS
TERRESTRIAL HYDROSPHERE > SURFACE WATER > LAKES
TERRESTRIAL HYDROSPHERE > SURFACE WATER > WETLANDS
BIOSPHERE > AQUATIC ECOSYSTEMS > LAKES
BIOSPHERE > TERRESTRIAL ECOSYSTEMS > WETLANDS > ESTUARINE WETLANDS
BIOSPHERE > TERRESTRIAL ECOSYSTEMS > WETLANDS > LACUSTRINE WETLANDS
BIOSPHERE > TERRESTRIAL ECOSYSTEMS > WETLANDS > MARINE
BIOSPHERE > TERRESTRIAL ECOSYSTEMS > WETLANDS > MARSHES
BIOSPHERE > TERRESTRIAL ECOSYSTEMS > WETLANDS > PALUSTRINE WETLANDS
BIOSPHERE > TERRESTRIAL ECOSYSTEMS > WETLANDS > PEATLANDS
BIOSPHERE > TERRESTRIAL ECOSYSTEMS > WETLANDS > RIPARIAN WETLANDS
BIOSPHERE > TERRESTRIAL ECOSYSTEMS > WETLANDS > SWAMPS
BIOSPHERE > AQUATIC ECOSYSTEMS > WETLANDS
BIOSPHERE > AQUATIC ECOSYSTEMS > WETLANDS > ESTUARINE WETLANDS
BIOSPHERE > AQUATIC ECOSYSTEMS > WETLANDS > LACUSTRINE WETLANDS
BIOSPHERE > AQUATIC ECOSYSTEMS > WETLANDS > MARINE
BIOSPHERE > AQUATIC ECOSYSTEMS > WETLANDS > MARSHES
BIOSPHERE > AQUATIC ECOSYSTEMS > WETLANDS > PALUSTRINE WETLANDS
BIOSPHERE > AQUATIC ECOSYSTEMS > WETLANDS > PEATLANDS
BIOSPHERE > AQUATIC ECOSYSTEMS > WETLANDS > RIPARIAN WETLANDS
BIOSPHERE > AQUATIC ECOSYSTEMS > WETLANDS > SWAMPS
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Lehner, B. and P. D?ll (2004): Development and validation of a global database
of lakes, reservoirs and wetlands. Journal of Hydrology 296/1-4: 1-22.
Data Set Progress
Distribution Media: online, www
Distribution Size: 46 MB
Distribution Format: shapefiles
Email: bernhard.lehner at wwfus.org
Conservation Science Program
Province or State: DC
Postal Code: 20037
Email: doell at usf.uni-kassel.de
Center for Environmental Systems Research Kurt-Wolters-Strasse 3 Room 2208
Postal Code: 34109
Lehner, B. and P. Doll (2004): Development and validation of a global database of lakes, reservoirs and wetlands. Journal of Hydrology 296/1-4: 1-22.
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Merchant, J.W. (2000): Development of a global land cover characteristics
database and IGBP DISCover from 1-km AVHRR data. International Journal of
Remote Sensing 21(6/7): 1303-1330 http://edcdaac.usgs.gov/glcc/glcc.html
Vorosmarty, C.J., Sharma, K.P.,Fekete, B.M., Copeland, A.H., Holden, J., Lough, J.A. (1997): The storage and aging of continental runoff in large reservoir systems of the world, Ambio 26(4): 210-219.
WCMC (World Conservation Monitoring Centre) (1993): Digital wetlands data set. Cambridge, U.K.
Creation and Review Dates
DIF Creation Date: 2004-09-22
Last DIF Revision Date: 2004-09-23