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    • SAFARI 2000 MODIS MOD05_L2 Water Vapor Data, Binary Format, for Southern Africa

    Metadata Updated: December 6, 2023

    The MODIS precipitable water product consists of vertical column water-vapor amounts in centimeters (cm) at 1 km spatial resolution. The SAFARI 2000 product, provided in flat binary data files, is a subset of the official MODIS Level 2 MOD05 product in EOS Hierarchical Data Format (HDF) format. Specifically, the SAFARI product contains data from daytime-only MODIS granules over southern Africa for the period August 21, 2000, through September 20, 2000. A granule is the data collected over the full MODIS swath in a five-minute period. Further, the SAFARI product contains values generated by the MODIS near-infrared algorithm applied over clear land areas only (determined via the QA bit field). All values were derived from MODIS on the morning-pass Terra satellite. The product is very sensitive to boundary-layer water vapor since it is derived from attenuation of reflected solar light from the surface. This data product is essential to understanding the hydrological cycle, aerosol properties, aerosol-cloud interactions, energy budget, and climate.The MOD05 water vapor data files were converted from their original HDF format to flat binary files for this SAFARI 2000 data set. The conversion was performed using code developed in the Interactive Data Language (IDL) Version 5.5. The following Scientific Data Sets (SDS) are provided in this data set: Latitude; Longitude; Sensor_Zenith; and Water_Vapor_Near_Infrared.

    Access & Use Information

    Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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    Dates

    Metadata Created Date November 1, 2023
    Metadata Updated Date December 6, 2023

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

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    Additional Metadata

    Resource Type Dataset
    Metadata Created Date November 1, 2023
    Metadata Updated Date December 6, 2023
    Publisher ORNL_DAAC
    Maintainer
    Identifier C2789735221-ORNL_CLOUD
    Data First Published 2023-10-18
    Language en-US
    Data Last Modified 2023-10-25
    Category SAFARI 2000, geospatial
    Public Access Level public
    Bureau Code 026:00
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Metadata Catalog ID https://data.nasa.gov/data.json
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Citation Gao, B.C., Y.J. Kaufman, and D. Tanre. 2005. SAFARI 2000 MODIS MOD05_L2 Water Vapor Data, Binary Format, for Southern Africa. ORNL DAAC, Oak Ridge, Tennessee, USA. http://dx.doi.org/10.3334/ORNLDAAC/812
    Graphic Preview Description Browse Image
    Graphic Preview File https://daac.ornl.gov/graphics/browse/project/square/safari_logo_square.png
    Harvest Object Id 444806bf-f0e2-4341-8a50-8de19065b1cb
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://doi.org/10.3334/ORNLDAAC/812
    Metadata Type geospatial
    Old Spatial -20.64 -42.28 50.52 10.1
    Program Code 026:001
    Source Datajson Identifier True
    Source Hash 252d6461fe48c7eab41bf11ce85e5dfeaa278528282cffe42d4d746dcca903a9
    Source Schema Version 1.1
    Spatial
    Temporal 2000-08-20T00:00:00Z/2000-09-20T23:59:59Z

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