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Data from: Multiscale climatological albedo look-up maps derived from moderate resolution imaging spectroradiometer BRDF/albedo products

dataset
posted on 2024-02-16, 19:55 authored by Feng GaoFeng Gao

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/

    See the SCINet File Transfer guide for more information on moving large files: https://scinet.usda.gov/guides/data/datatransfer

    Globus users: The files can also be accessed through Globus by following this data link. The user will need to log in to Globus in order to retrieve this data. User accounts are free of charge with several options for signing on. Instructions for creating an account are on the login page.

Funding

National Aeronautics and Space Administration

U.S. Geological Survey

History

Data contact name

Gao, Feng

Data contact email

feng.gao@usda.gov

Publisher

Ag Data Commons

Intended 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

2001-01-01

Temporal Extent End Date

2011-01-01

Theme

  • 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

Global

ISO 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 Sciences

OMB 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

Preferred dataset citation

Gao, Feng (2021). Data from: Multiscale climatological albedo look-up maps derived from moderate resolution imaging spectroradiometer BRDF/albedo products. Ag Data Commons. https://doi.org/10.15482/USDA.ADC/1523392

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    Categories

    Keywords

    albedoradiative forcingClimate ChangeMODISBRDFlook-up mapdata.govARS

    Licence

    U.S. Public Domain

    Exports

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