Search Help
Global Change Master Directory (GCMD)
US ITASE-01-1 ice core (Research funded by NSF OPP)
Entry ID: US_ITASE-01-1_12_03_2008


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.

Related URL
Link: View Related Information


Link: View Related Information


Link: View Related Information

Parent DIF
This description is a member of a collection. The collection is described in
US_ITASE


Geographic Coverage
 N: -79.1597 S: -79.1597  E: -104.9672  W: -104.9672

 Min Altitude: 1842 M  Max Altitude: 1842 M  Min Depth: 0  Max Depth: 73 M

Data Set Citation
Dataset Creator: Climate Change Institute
Dataset Title: US ITASE glaciochemical data
Dataset Series Name: US ITASE Phase I and II
Dataset Release Place: NSIDC and Icereader
Dataset Publisher: Climate Change Institute
Version: 12_03_2008
Issue Identification: 12_03_2008/1
Data Presentation Form: digital file


Temporal Coverage
Start Date: 1857-01-01
Stop Date: 2002-12-31


Paleo_Temporal_Coverage
Paleo Start Date: 200 ybp
Paleo Stop Date: 0 ybp
Chrono Unit:


Location Keywords
CONTINENT > ANTARCTICA
GEOGRAPHIC REGION > POLAR


Data Resolution
Temporal Resolution: Decadal, Annual, Subannual, Seasonal


Science Keywords
ATMOSPHERE >AEROSOLS >SULFATE PARTICLES    [Definition]
ATMOSPHERE >ALTITUDE >TROPOPAUSE    [Definition]
ATMOSPHERE >ATMOSPHERIC CHEMISTRY >TRACE ELEMENTS/TRACE METALS    [Definition]
ATMOSPHERE >ATMOSPHERIC CHEMISTRY    [Definition]
ATMOSPHERE >ATMOSPHERIC PRESSURE >ANTICYCLONES/CYCLONES    [Definition]
ATMOSPHERE >ATMOSPHERIC PRESSURE >OSCILLATIONS    [Definition]
ATMOSPHERE >ATMOSPHERIC PRESSURE >SEA LEVEL PRESSURE    [Definition]
ATMOSPHERE >ATMOSPHERIC TEMPERATURE >SURFACE TEMPERATURE >AIR TEMPERATURE    [Definition]
ATMOSPHERE >ATMOSPHERIC TEMPERATURE >ATMOSPHERIC STABILITY    [Definition]
ATMOSPHERE >ATMOSPHERIC TEMPERATURE >SURFACE TEMPERATURE    [Definition]
ATMOSPHERE >ATMOSPHERIC TEMPERATURE    [Definition]
ATMOSPHERE >ATMOSPHERIC WATER VAPOR >WATER VAPOR INDICATORS >TOTAL PRECIPITABLE WATER    [Definition]
ATMOSPHERE >ATMOSPHERIC WINDS >SURFACE WINDS    [Definition]
ATMOSPHERE >ATMOSPHERIC WINDS    [Definition]
ATMOSPHERE >PRECIPITATION >SOLID PRECIPITATION >SNOW    [Definition]
ATMOSPHERE >ATMOSPHERIC RADIATION >SOLAR RADIATION    [Definition]
CRYOSPHERE >SEA ICE >ICE EXTENT    [Definition]
CRYOSPHERE >SEA ICE >POLYNYAS    [Definition]
CRYOSPHERE >SEA ICE    [Definition]
CRYOSPHERE >GLACIERS/ICE SHEETS >GLACIERS    [Definition]
CRYOSPHERE >SNOW/ICE >SNOW DENSITY    [Definition]
OCEANS >OCEAN CIRCULATION >THERMOHALINE CIRCULATION    [Definition]
PALEOCLIMATE >ICE CORE RECORDS >IONS    [Definition]
PALEOCLIMATE >ICE CORE RECORDS >ISOTOPES    [Definition]
PALEOCLIMATE >ICE CORE RECORDS >VOLCANIC DEPOSITS    [Definition]
PALEOCLIMATE >ICE CORE RECORDS    [Definition]
CRYOSPHERE >SNOW/ICE >SNOW/ICE CHEMISTRY    [Definition]
ATMOSPHERE >ATMOSPHERIC PRESSURE    [Definition]
CLIMATE INDICATORS >ATMOSPHERIC/OCEAN INDICATORS >TELECONNECTIONS >ANTARCTIC OSCILLATION    [Definition]
CLIMATE INDICATORS >ATMOSPHERIC/OCEAN INDICATORS >TELECONNECTIONS >BLOCKING INDEX    [Definition]
CLIMATE INDICATORS >ATMOSPHERIC/OCEAN INDICATORS >TELECONNECTIONS >PACIFIC DECADAL OSCILLATION    [Definition]
CRYOSPHERE >GLACIERS/ICE SHEETS >GLACIER MASS BALANCE/ICE SHEET MASS BALANCE    [Definition]
PALEOCLIMATE >PALEOCLIMATE RECONSTRUCTIONS >AIR TEMPERATURE RECONSTRUCTION    [Definition]
PALEOCLIMATE >PALEOCLIMATE RECONSTRUCTIONS >DROUGHT/PRECIPITATION RECONSTRUCTION    [Definition]
PALEOCLIMATE >PALEOCLIMATE RECONSTRUCTIONS >ATMOSPHERIC CIRCULATION RECONSTRUCTION    [Definition]
PALEOCLIMATE >PALEOCLIMATE RECONSTRUCTIONS >SOLAR FORCING/INSOLATION RECONSTRUCTION    [Definition]
SUN-EARTH INTERACTIONS >SOLAR ACTIVITY >COSMIC RAYS    [Definition]
ATMOSPHERE >ATMOSPHERIC CHEMISTRY >SULFUR COMPOUNDS    [Definition]


Instrument
CORING DEVICES    [Information]
ION CHROMATOGRAPHS    [Information]
ICP-MS >Inductively Coupled Plasma Mass Spectrometer    [Information]


Project
NSF/PLR >Division of Polar Programs, National Science Foundation    [Information]
US-ITASE >United States - International Trans Antarctic Scientific Expedition    [Information]


Quality
High precision major and trace chemistry using IC, ICP-MS with strict sampling, handling and analytical protocols utilizing blanks and multilevel calibration techniques.


Access Constraints
Controlled by NSIDC Data Center


Use Constraints
All data users may copy, distribute, display and perform work and make derivative works based on it only if they give the author and data owner credit as outlined below.

Data users must cite the following publications whenever using any part of these data, unless other usage terms have been negotiated and agreed upon with the data set owner.


Keywords
ice core
ice chemistry
Antarctica
paleoclimate
atmospheric circulation
human impact
volcanic activity
solar activity
abrupt climate change
natural climate variability
trace elements
major ions
sea ice extent
past climate
El Nino
Amundsen Sea Low
Tropical Polar Teleconnections
Holocene
multinational research


Data Set Progress
ACTIVE


Data Center
National Snow and Ice Data Center    [Information]
Data Center URL: http://nsidc.org

Data Center Personnel
Name: NSIDC USER SERVICES
Phone: +1 (303) 492-6199
Fax: +1 (303) 492-2468
Email: nsidc at nsidc.org
Contact Address:
National Snow and Ice Data Center
CIRES, 449 UCB
University of Colorado
City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA

NSIDC Antarctic Glaciological Data Center    [Information]
Data Center URL: http://nsidc.org/agdc/

Data Center Personnel
Name: ROB BAUER
Phone: 303-492-2378
Fax: 303-492-2468
Email: bauer at nsidc.org
Contact Address:
University of Colorado
Cooperative Institute for Research in Environmental Sciences
CIRES 449 UCB
City: Boulder
Province or State: CO
Postal Code: 80309
Country: USA



Distribution
Distribution_Media: digital ftp
Distribution_Size: 1.0 MB
Distribution_Format: ASCII text
Fees: free


Personnel
PAUL A. MAYEWSKI
Role: INVESTIGATOR
Phone: 207-581-2190
Phone: 207-581-3019
Fax: 207-581-1203
Email: paul.mayewski at maine.edu
Email: climatechange at maine.edu
Email: usitase at maine.edu
Contact Address:
Climate Change Institute
Department of Earth Sciences
University of Maine
303 Bryand Global Science Building
City: Orono
Province or State: ME
Postal Code: 04469-5790
Country: United States


DANIEL A. DIXON
Role: INVESTIGATOR
Phone: 207 581 2112
Fax: 207 581 1203
Email: daniel.dixon at maine.edu
Contact Address:
University of Maine
Department of Earth Sciences
5764 Sawyer Environmental Research Building
City: Orono
Province or State: Maine
Postal Code: 04469-5790
Country: USA


Extended Metadata Properties
(Click to view more)

Creation and Review Dates
DIF Creation Date: 2008-12-04
Last DIF Revision Date: 2018-11-06



-->