Response of Tundra Ecosystems to Altered Snow Regimes, Toolik Lake, Alaska, and Niwot Ridge, Colorado  View Catalog Page Entry ID
GGD245
Summary
This study investigated the effects of field manipulations of winter precipitation and summer temperature on species performance, community structure, and ecosystem C and N dynamics. Parameters include ground temperatures at the surface and 15 cm along a gradient of snow depths, snow depth, soil temperatures at 10 cm intervals at several sites in drifts and unimpacted vegetation sites, and active layer thickness. Temperature profiles were monitored continuously. Snow depths were monitored in a grid behind snow fences and in a 1 x 1 km grid surrounding the fence sites. Active layer was monitored at the end of the season. These data are part of the International Tundra Experiment (ITEX) network.
Geographic Coverage
Spatial Coordinates:
N: 68°
S: 40°
E: -105°
W: -148°
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Data Set Citation
Dataset Creator: Donald (Skip) Walker, Marilyn Walker, Jeff Welker, Tim Seastedt, and Bill Krantz
Dataset Title: Response of Tundra Ecosystems to Altered Snow Regimes, Toolik Lake, Alaska, and Niwot Ridge, Colorado
Dataset Release Date: 2003-06-17
Dataset Release Place: Boulder, Colorado USA
Dataset Publisher: NSIDC: National Snow and Ice Data Center
Online Resource: http://nsidc.org/data/ggd245.html
Location Keywords
- CONTINENT NORTH AMERICA ALASKA, COLORADO
- CONTINENT NORTH AMERICA UNITED STATES OF AMERICA ALASKA, COLORADO
Science Keywords
- Atmosphere Atmospheric Temperature Surface Air Temperature
- Atmosphere Precipitation Snow
- Cryosphere Frozen Ground Active Layer
- Cryosphere Frozen Ground Soil Temperature
- Cryosphere Snow/Ice Snow Cover
- Cryosphere Snow/Ice Snow Depth
- Cryosphere Snow/Ice Snow/Ice Temperature
- Land Surface Frozen Ground Active Layer
- Land Surface Frozen Ground Soil Temperature
- Land Surface Soils Soil Temperature
- Terrestrial Hydrosphere Snow/Ice Snow Cover
- Terrestrial Hydrosphere Snow/Ice Snow Depth
- Terrestrial Hydrosphere Snow/Ice Snow/Ice Temperature
Ancillary Keywords
- Active Layer
- Chemistry
- Snow
- Soil Properties
- Thermal Properties
- Vegetation
- Climatology/Meteorology/Atmosphere
Platform
- GROUND-BASED OBSERVATIONS
- GROUND STATIONS
Data Center
NSIDC Frozen Ground Data Center
Data Center URL: http://nsidc.org/fgdc/
Data Center Personnel
Name: NSIDC FGDC User Services
Phone: 1 303 492-6199
Fax: 1 303 492-2468
Email: nsidc@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
Personnel
Marilyn Walker
Role: DATA AUTHOR
Phone: 1 907 474-2424
Fax: 1 907 474-6251
Email: ffmdw@uaf.edu
Contact Address:
- University of Alaska Fairbanks
- Boreal Ecology Cooperative Research Unit
- School of Agriculture and Land Resources Management
- P.O. Box 756780
City: Fairbanks
Province or State: AK
Postal Code: 99775-7000
Donald (Skip) A. Walker
Role: INVESTIGATOR
Phone: 1 907 474-2460
Email: ffdaw@uaf.edu
Contact Address:
- University of Alaska at Fairbanks
- Institute of Arctic Biology
- Institute of Arctic Biology
- University of Alaska Fairbanks
City: Fairbanks
Province or State: AK
Postal Code: 99775-6780
Country: USA
Jeff Welker
Role: INVESTIGATOR
Contact Address:
- University of Colorado
- INSTAAR
- Campus Box 450
City: Boulder
Province or State: CO
Postal Code: 80309-0450
Country: USA
Tim Seastedt
Role: INVESTIGATOR
Contact Address:
- University of Colorado
- INSTAAR
- Campus Box 450
City: Boulder
Province or State: CO
Postal Code: 80309-0450
Country: USA
Bill Krantz
Role: INVESTIGATOR
Contact Address:
- University of Colorado
- INSTAAR
- Campus Box 450
City: Boulder
Province or State: CO
Postal Code: 80309-0450
Country: USA
Metadata Name and Version
Metadata Name: CEOS IDN DIF
Metadata Version: 9.7
Creation and Review Dates
DIF Creation Date: 2003-06-17
Last DIF Revision Date: 2005-01-07
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