GISP2 Ice Core Temperature and Accumulation Data
Entry ID: NOAA_NCDC_PALEO_2004-013

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Summary
Abstract: Greenland ice-core records provide an exceptionally clear picture of many
aspects of abrupt climate changes, and particularly of those associated with
the Younger Dryas event, as reviewed here. Well-preserved annual layers can be
counted confidently, with only 1% errors for the age of the end of the Younger
Dryas 11,500 years before present. Ice-flow corrections allow reconstruction
of snow accumulation rates over tens of thousands of years with little
additional uncertainty. Glaciochemical and particulate data record
atmospheric-loading changes with little uncertainty introduced by changes in
snow accumulation. Confident paleothermometry is provided by site-specific
calibrations using ice-isotopic ratios, borehole temperatures, and
gas-isotopic ratios. Near-simultaneous changes in ice-core paleoclimatic
indicators of local, regional, and more-widespread climate conditions
demonstrate that much of the Earth experienced abrupt climate changes
synchronous with Greenland within thirty years or less. Post-Younger Dryas
changes have not duplicated the size, extent and rapidity of these
paleoclimatic changes.

Related URL
Link: GET DATA
Description: Access to GISP2 temperature reconstruction data


Geographic Coverage
 N: 73.0 S: 72.0  E: -37.0  W: -38.0

Data Set Citation
Dataset Originator/Creator: Alley, R.B.
Dataset Title: GISP2 Ice Core Temperature and Accumulation Data
Dataset Series Name: IGBP PAGES/WDCA CONTRIBUTION SERIES NUMBER: 2004-013
Dataset Release Date: March 2004
Dataset Release Place: Boulder, CO
Dataset Publisher: IGBP PAGES/World Data Center for Paleoclimatology
Issue Identification: 2004-013
Other Citation Details: NOAA/NCDC Paleoclimatology Program
Online Resource: ftp://ftp.ncdc.noaa.gov/pub/data/paleo/icecore/greenland/summit/gis...


Paleo_Temporal_Coverage
Paleo Start Date: 50,000 ybp
Paleo Stop Date: 0 ybp
Chrono Unit:


Location Keywords
CONTINENT > NORTH AMERICA > GREENLAND


Science Keywords
PALEOCLIMATE >ICE CORE RECORDS    [Definition]
PALEOCLIMATE >PALEOCLIMATE RECONSTRUCTIONS >AIR TEMPERATURE RECONSTRUCTION    [Definition]
PALEOCLIMATE >LAND RECORDS >BOREHOLES    [Definition]


ISO Topic Category
CLIMATOLOGY/METEOROLOGY/ATMOSPHERE


Project
GISP2 >Greenland Ice Sheet Project II    [Information]
PAGES >Past Global Changes, IGBP    [Information]


Keywords
GISP2
ice core temperature
Younger Dryas
abrupt climate change
paleothermometry


Data Set Progress
COMPLETE


Originating Center
NCDC


Data Center
World Data Center for Paleoclimatology, Boulder    [Information]
Data Center URL: http://www.ncdc.noaa.gov/paleo/

Data Center Personnel
Name: WDC/PALEOCLIMATOLOGY, BOULDER
Phone: +1 (303) 497-6160
Fax: +1 (303) 497-6513
Email: paleo at noaa.gov
Contact Address:
World Data Center for Paleoclimatology
NOAA/NCDC Code E/GCx3
325 Broadway
City: Boulder
Province or State: CO
Postal Code: 80303
Country: USA



Distribution
Distribution_Media: online ftp
Distribution_Format: ascii
Fees: none


Personnel
RICHARD B ALLEY
Role: INVESTIGATOR
Phone: 814 863-1700
Email: ralley at geosc.psu.edu
Contact Address:
Pennsylvania State University
Department of Geosciences
517 Deike Building
City: University Park
Province or State: PA
Postal Code: 16802
Country: USA


Publications/References
Alley, R.B. 2000. The Younger Dryas cold interval as viewed from central
Greenland. Quaternary Science Reviews 19:213-226.

Cuffey, K.M., and G.D. Clow. 1997. Temperature, accumulation, and ice sheet
elevation in central Greenland through the last deglacial transition. Journal of Geophysical Research 102:26383-26396

Creation and Review Dates
DIF Creation Date: 2006-04-20
Last DIF Revision Date: 2006-08-29

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