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New Zealand International Transantarctic Scientific Expedition (NZ ITASE) - Climate variability measured from ice cores taken along the Victoria Land Coast

Entry ID: K049_1999_2008_NZ_1

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Summary

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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Description: The IGS global system of satellite tracking stations, Data Centers, and Analysis Centers puts high-quality GPS data and data products on line in near real time to meet the objectives of a wide range of scientific and engineering applications and studies.

Geographic Coverage

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Spatial coordinates

	N: -72.9	S: -77.72	E: 167.67	W: 159.87
Min Altitude: 0 Max Altitude: 2400
Min Depth: 0 Max Depth: 200

Temporal Coverage

Start Date: 1999-11-24

Paleo Temporal Coverage

Chrono Unit:

PHANEROZOIC > CENOZOIC > QUATERNARY > HOLOCENE

Location Keywords

CONTINENT > ANTARCTICA > MT EREBUS SADDLE

CONTINENT > ANTARCTICA > VICTORIA LAND COAST

Service Keywords

DATA ANALYSIS AND VISUALIZATION >GEOGRAPHIC INFORMATION SYSTEMS >WEB-BASED GEOGRAPHIC INFORMATION SYSTEMS

Science Keywords

AGRICULTURE >FOREST SCIENCE >FOREST FIRE SCIENCE

AGRICULTURE >FOREST SCIENCE >FOREST MANAGEMENT

ISO Topic Category

FARMING

BIOTA

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Use Constraints For Public and Educational Use

Ancillary Keywords

GIS

Geographic Information Systems

Service Provider

UC-BERKELEY/CAMFER > Center for the Assessment and Monitoring of Forest and Environmental Resources, University of California, Berkeley

Service Organization URL: http://camfer.cnr.berkeley.edu/

Service Provider Personnel
Name: PENG GONG Phone: 510-642-5170 Fax: 510-643-5098 Email: gong at nature.berkeley.edu Contact Address: Center for the Assessment and Monitoring of Forest and Environmental Resources 151 Hilgard Hall University of California City: Berkeley Province or State: CA Postal Code: 94720 Country: USA

COMTF > California Oak Mortality Task Force

Service Organization URL: http://www.suddenoakdeath.org/

Service Provider Personnel
Name: MARK STANLEY Phone: 916-653-4995 Fax: 916-653:8957 Email: mark_stanley at fire.ca.gov Contact Address: PO Box 944246 City: Sacramento Province or State: Ca Postal Code: 94244-2460 Country: USA

Distribution

Distribution Media: Online

Fees: No fees

Personnel

KARIN TUXEN

Role: TECHNICAL CONTACT

Phone: 510-642-8322

Email: karin at nature.berkeley.edu

Contact Address:

GIS/webGIS Specialist/SRAII

Sudden Oak Death Project

145 Mulford Hall, #3114

University of California, Berkeley

City: Berkeley

Province or State: CA

Postal Code: 94720-3114

Country: USA

TYLER B. STEVENS

Role: SERF AUTHOR

Phone: (301) 614-6898

Fax: 301-614-5268

Email: Tyler.B.Stevens at nasa.gov

Contact Address:

NASA Goddard Space Flight Center

Global Change Master Directory

City: Greenbelt

Province or State: MD

Postal Code: 20771

Country: USA

Creation and Review Dates

SERF Creation Date: 2003-01-30
SERF Last Revision Date: 2011-08-16

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