US ITASE-00-1 ice core (Research funded by NSF OPP)
Entry ID:
US_ITASE-00-1
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Summary
Abstract:
Sub-annually resolved ice core chemistry data from various sites on the Antarctic Ice Sheet were obtained from 1999 to 2008 during the US International Trans-Antarctic Scientific Expedition (US ITASE) deployments. Researchers conducted experiments approximately every 100-300 km looking for clues representing climatic conditions over the past 200-1000+ years. Ice cores, obtained for the ... glaciochemical component of the US ITASE research, were analyzed for soluble major ion content and in some cases trace elements. At each site, a ~3-inch diameter ice core was drilled to depths as great as 120 m. Surface snow samples were collected every ~10-40 km. High-resolution chemical analysis (up to ~75 measurements per meter) was used to define each core-chemistry year based on peaks in Na+, Ca2+, Mg2+, K+, NH4+, Cl-, NO3-, SO42-, CH3SO3- (methylsulfonate), and in some cases trace elements. Extreme events such as volcanic eruptions provide absolute age horizons within each core that are easily identified in chemical profiles. Our chemical analysis is also useful for quantifying anthropogenic impact, biogeochemical cycling, and for reconstructing past atmospheric circulation patterns. 
Multimedia Sample
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Caption:
US ITASE traverse platform on the way to South Pole
Description:
Image taken by Dan Dixon during 2007-2008 US ITASE expedition.
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Caption:
Removing ice core from drill
Description:
Image taken using Dan Dixon camera during 2007-2008 US ITASE expedition.
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Caption:
Dan Dixon measuring ice core
Description:
Image of Dan Dixon taken using Dan Dixon camera during 2007-2008 US ITASE expedition.
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Caption:
Mike Waszkiewicz drilling using ECLIPSE system
Description:
Image of Mike Waszkiewicz taken by Dan Dixon during 2007-2008 US ITASE expedition.
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Geographic Coverage
(Click for Interactive Map)
Spatial coordinates
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N: -79.38
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S: -79.38
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E: -111.24
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W: -111.24
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Min Altitude:
1791 M
Max Altitude:
1791 M
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Min Depth:
0
Max Depth:
105 M
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Data Set Citation
Dataset Originator/Creator:
L.J. Poppe, V.F. Paskevich, S.J. Williams, M.E. Hastings, J.T. Kelly, D.F. Belknap, L.G. Ward, D.M. FitzGerald, P.F. Larsen
Dataset Title:
Surficial Sediment Data from the Gulf of Maine, Georges Bank, and Vicinity: A GIS Compilation
Dataset Series Name:
U.S. Geological Survey Open-File Report
Dataset Release Date:
2003
Dataset Release Place:
Woods Hole Field Center, Woods Hole, MA
Dataset Publisher:
U.S. Geological Survey, Coastal and Marine Geology Program
Issue Identification:
03-001
Data Presentation Form:
vector digital data
Other Citation Details:
Data is released via CD-ROM media. This digital publication may also be available on the website.
Online Resource:
http://pubs.usgs.gov/of/2003/of03-001/
Temporal Coverage
Start Date:
1865-01-01
Stop Date:
2001-12-31
Quality
Although these data have been used by the U.S. Geological Survey, U.S.
Department of the Interior, these data and information are provided with the
understanding that they are not guaranteed to be usable, timely, accurate, or
complete. Users are cautioned to consider carefully the provisional nature of
these data and information before using them for decisions that concern
... personal or public safety or the conduct of business that involves substantial
monetary or operational consequences. Conclusions drawn from, or actions
undertaken on the basis of, such data and information are the sole
responsibility of the user.
Neither the U.S. Government nor any agency thereof, nor any of their employees,
contractors, or subcontractors, make any warranty, express or implied, nor
assume any legal liability or responsibility for the accuracy, completeness, or
usefulness of any data, software, information, apparatus, product, or process
disclosed, nor represent that its use would not infringe on privately owned
rights.
Trade, firm, or product names and other references to non-USGS products and
services are provided for information only and do not constitute endorsement or
warranty, express or implied, by the USGS, USDOI, or U.S. Government, as to
their suitability, content, usefulness, functioning, completeness, or accuracy.
Access Constraints
None
Use Constraints
Data are in the Public Domain. Please recognize the U.S. Geological Survey
(USGS) as the source of this information.
Data Set Progress
COMPLETE
Distribution
Distribution Media:
Online
Fees:
No fees
Distribution Media:
CD-ROM
Personnel
Role:
DIF AUTHOR
Role:
TECHNICAL CONTACT
Phone:
(508) 548-8700 x2281
Fax:
(508) 457-2310
Email:
vpaskevich at usgs.gov
City:
Woods Hole
Province or State:
MA
Postal Code:
02543-1598
Country:
USA
Creation and Review Dates
DIF Creation Date:
1997-07-22
Last DIF Revision Date:
2012-10-22
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