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Data from: Multiscale climatological albedo look-up maps derived from moderate resolution imaging spectroradiometer BRDF/albedo products
Surface albedo determines radiative forcing and is a key parameter for driving Earth’s climate. Better characterization of surface albedo for individual land cover types can reduce the uncertainty in estimating changes to Earth’s radiation balance due to land cover change. The dataset includes albedo look-up maps (LUMs) using a multiscale hierarchical approach based on moderate resolution imaging spectroradiometer (MODIS) bidirectional reflectance distribution function (BRDF)/albedo products and Landsat imagery. Ten years (2001 to 2011) of MODIS BRDF/albedo products were used to generate global albedo climatology. Albedo LUMs of land cover classes defined by the International Geosphere-Biosphere Programme (IGBP) at multiple spatial resolutions were generated. The albedo LUMs included monthly statistics of white-sky (diffuse) and black-sky (direct) albedo for each IGBP class for visible, near-infrared, and shortwave broadband under both snow-free and snow-covered conditions. The LUMs provide high temporal and spatial resolution global albedo statistics without gaps for investigating albedo variations under different land cover scenarios and could be used for land surface modeling.
Resources in this dataset:
Resource Title: Multiscale climatological albedo look-up maps (LUMS).
File Name: Web Page, url: https://app.globus.org/file-manager?origin_id=e5391440-1d5e-11ec-a0a0-6b21ca6daf73&origin_path=/node35339/
The albedo look-up maps (LUMs) were built on moderate resolution imaging spectroradiometer (MODIS) bidirectional reflectance distribution function (BRDF)/albedo products and Landsat imagery. Ten years (2001 to 2011) of MODIS BRDF/albedo products were used to generate global albedo climatology. Albedo LUMs of land cover classes defined by the International Geosphere-Biosphere Programme (IGBP) at multiple spatial resolutions were generated. The albedo LUMs included monthly statistics of white-sky (diffuse) and black-sky (direct) albedo for each IGBP class for visible, near-infrared, and shortwave broadband under both snow-free and snow-covered conditions.
The zipped file includes: readme.docx snow_covered_hierarchical.v3.tar snow_covered_LUM.v3.tar snow_free_hierarchical.v3.tar snow_free_LUM.v3.tar
The .zip file can be accessed/retrieved with valid SCINet account at this location: /KEEP/ADCdatastorage/NAL/published/node35339/
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Funding
National Aeronautics and Space Administration
U.S. Geological Survey
History
Data contact name
Gao, FengData contact email
feng.gao@usda.govPublisher
Ag Data CommonsIntended use
The dataset provides high temporal and spatial resolution global albedo statistics without gaps for investigating albedo variations under different land cover scenarios and could be used for land surface modeling.Use limitations
Applications that use other land cover classifications need to be cross-walked to the IGBP classes. The dataset was based on a decade of MODIS data products, which may be too short for generating climate data record, especially under snow-covered conditions. The median value of the period for the statistics can only capture one major trend and may overlook other conditions (e.g., wet or dry).Temporal Extent Start Date
2001-01-01Temporal Extent End Date
2011-01-01Theme
- Not specified
Geographic Coverage
{"type":"FeatureCollection","features":[{"geometry":{"type":"Polygon","coordinates":[[[-180,-90],[-180,90],[180,90],[180,-90],[-180,-90]]]},"type":"Feature","properties":{}}]}Geographic location - description
GlobalISO Topic Category
- climatologyMeteorologyAtmosphere
National Agricultural Library Thesaurus terms
moderate resolution imaging spectroradiometer; radiative forcing; climate; vegetation types; uncertainty; land cover; data collection; reflectance; Landsat; climatology; models; climate change; meteorological data; Research Technology and Engineering; Natural Resources Earth and Environmental SciencesOMB Bureau Code
- 005:18 - Agricultural Research Service
OMB Program Code
- 005:040 - National Research
Primary article PubAg Handle
Pending citation
- No
Public Access Level
- Public