10.5065/D6B27SD8
Warren, S.
University of Washington, Department of Atmospheric Sciences
Grenfell, T.
Department of Atmospheric Sciences, University of Washington
Clarke, A.
University of Hawaii
Albedo of ice types in northeast Greenland's ablation zone. Version 1.0
UCAR/NCAR - Earth Observing Laboratory
2011
scientific data
climatologyMeteorologyAtmosphere
Radiation
Arctic
Optics
Sediment
Field Surveys
In Situ Land-based Platforms > > FIELD SURVEYS > > cca1ba09-0595-4ab0-a28f-158f988e9301
EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > SNOW/ICE > ALBEDO
EARTH SCIENCE > CRYOSPHERE > SNOW/ICE > ALBEDO
EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC RADIATION > ALBEDO
EARTH SCIENCE > LAND SURFACE > SURFACE RADIATIVE PROPERTIES > ALBEDO
ACADIS
Advanced Cooperative Arctic Data and Information Service
ARCSS
NSF Arctic System Science
A - C > ARCSS > Arctic System Science > b8cdc313-fb09-4796-99ac-079de0dcb042
University Corporation For Atmospheric Research (UCAR):National Center for Atmospheric Research (NCAR):Earth Observing Laboratory (EOL):Data Managment and Services (DMS)
Warren, Stephen G., sgw@uw.edu
University of Washington, Department of Atmospheric Sciences
Brandt, Richard
Atmospheric Sciences Dept.
Warren, Stephen G., sgw@uw.edu
University of Washington, Department of Atmospheric Sciences
2006-08-02T00:00:00Z/2006-08-10T00:00:00Z
2011-11-02T16:00:17Z
en
106.334
https://data.eol.ucar.edu/file/download/4243D11BCF95/2010KPCL_readme.html
https://data.eol.ucar.edu/arctic_projects/arcss/Data_Policy.html
https://www.eol.ucar.edu/field_projects/arcss
3 data files
1 ancillary/documentation file
1043 KiB
ASCII: ASCII Text (text/plain)
PDF: Portable Document Format (application/pdf)
1.0
These data are available to be used subject to the University Corporation for Atmospheric Research ("UCAR") terms and conditions.
Ice types, albedos and impurity content are characterized for the ablation zone of the Greenland ice sheet in Kronprinz Christians Land (808 N, 248 W). Along this ice margin the width of the ablation zone is only about 8 km. The emergence and melting of old ice in the ablation zone creates a surface layer of dust that was originally deposited with snowfall high on the ice sheet. This debris cover is augmented by locally derived wind-blown sediment. Subsequently, the surface dust particles often aggregate together to form centimetre-scale clumps that melt into the ice, creating cryoconite holes. The debris in the cryoconite holes becomes hidden from sunlight, raising the area-averaged albedo relative to surfaces with uniform debris cover. Spectral and broadband albedos were obtained for snow, ice hummocks, debris-covered ice, cryoconite-studded ice and barren tundra surfaces. Broadband ice albedos varied from 0.2 (for ice with heavy loading of uniform debris) to 0.6 (for ice hummocks with cryoconite holes). The cryoconite material itself has albedo 0.1 when wet.
-24.50000
-24.01700
79.90000
79.93300