Albedo of ice types in northeast Greenland's ablation zone https://data.eol.ucar.edu/dataset/106.334 Summary 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. Identifiers * Local archive identifier: 106.334 * doi:10.5065/D6B27SD8 https://doi.org/10.5065/D6B27SD8 Versions 1.0 Citation Warren, S., Grenfell, T., Clarke, A. 2011. Albedo of ice types in northeast Greenland's ablation zone. Version 1.0. UCAR/NCAR - Earth Observing Laboratory. https://doi.org/10.5065/D6B27SD8 Accessed 16 Apr 2024. Additional citation styles can be generated by entering the DOI at CrossCite (https://citation.crosscite.org/). Acknowledgement In addition to the citation reference and any other acknowledgements, please acknowledge NCAR/EOL in your publications with text such as: Data provided by NCAR/EOL under the sponsorship of the National Science Foundation. https://data.eol.ucar.edu/ Related projects * ACADIS: Advanced Cooperative Arctic Data and Information Service https://data.eol.ucar.edu/project/ACADIS * ARCSS: NSF Arctic System Science https://data.eol.ucar.edu/project/ARCSS Additional information * Spatial Type: point * Language: English Grant Code 0612636 Grant Contact Richard Brandt https://data.eol.ucar.edu/contact/show/908 ISO Topic Categories * climatologyMeteorologyAtmosphere Categories * Arctic * Optics * Radiation * Sediment * Snow and Land Ice Platforms * Field Surveys GCMD Science Keywords * EARTH SCIENCE > CRYOSPHERE > SNOW/ICE > ALBEDO * EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > SNOW/ICE > ALBEDO * EARTH SCIENCE > LAND SURFACE > SURFACE RADIATIVE PROPERTIES > ALBEDO * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC RADIATION > ALBEDO Documentation * 2010KPCL_readme.html [2 KiB] https://data.eol.ucar.edu/file/download/4243D11BCF95/2010KPCL_readme.html Related links * download: NSF Arctic Data Center https://doi.org/10.5065/D6B27SD8 * homepage: ARCSS EOL Webpage https://www.eol.ucar.edu/field_projects/arcss * info: ARCSS Data Policy https://data.eol.ucar.edu/arctic_projects/arcss/Data_Policy.html Temporal coverage * Begin datetime: 2006-08-02 00:00:00 * End datetime: 2006-08-10 00:00:00 Spatial coverage * Maximum (North) Latitude: 79.933 * Minimum (South) Latitude: 79.90 * Minimum (West) Longitude: -24.50 * Maximum (East) Longitude: -24.017 Primary contact information * pointOfContact: Stephen G. Warren https://data.eol.ucar.edu/contact/show/906 Additional contact information * author: Stephen G. Warren https://data.eol.ucar.edu/contact/show/906 * author: Thomas C. Grenfell https://data.eol.ucar.edu/contact/show/1065 * author: Antony D. Clarke https://data.eol.ucar.edu/contact/show/167 * principalInvestigator: Stephen G. Warren https://data.eol.ucar.edu/contact/show/906 Alternate metadata formats * DataCite: https://data.eol.ucar.edu/dataset/106.334?format=datacite * ISO/TC 211: https://data.eol.ucar.edu/dataset/106.334?format=isotc211