Skip to main content
U.S. flag

An official website of the United States government

GFSAD Data Dictionary

Active
By Earth Resources Observation and Science (EROS) Center July 2, 2021

The Data Dictionaries are a set of information describing the contents, format, and structure of elements for EarthExplorer products.

Acquisition End Date

  • Field Definition:  The last day of data acquisition.

          Format:

          YYYY/MM/DD

Acquisition Start Date

  • Field Definition:  The first day of data acquisition.

          Format:

          YYYY/MM/DD

Coordinates - Decimal Degrees

  • Field Definition:  The latitude and longitude are provided in decimal degrees for the following fields:

    Scene Center Latitude and Longitude
    Northeast (NE) Corner Latitude and Longitude
    Northwest (NW) Corner Latitude and Longitude
    Southeast (SE) Corner Latitude and Longitude
    Southwest (SW) Corner Latitude and Longitude

    Latitude Format Decimal Degrees: -90.000 through 90.000
    Longitude Format Decimal Degrees: -180.000 through 180.000

    Number of decimal places will vary by dataset – check collection in EE.

Coordinates - Degrees, Minutes, Seconds

  • Field Definition:  The latitude and longitude of the scene in degrees, minutes, and seconds for the following fields:

          Values:

          Scene Center Latitude and Longitude

          Northeast (NE) Corner Latitude and Longitude

          Northwest (NW) Corner Latitude and Longitude

          Southeast (SE) Corner Latitude and Longitude

          Southwest (SW) Corner Latitude and Longitude

 

          Longitude Format:

          DDDMMSS.SSH

          DDD = Degree(s) with a range of 0 through 180

          MM = Minute(s) with a range of 0 through 59

          SS.SS = Second(s) with a range of 0 through 59.99

          H = Hemisphere with E for east and W for west

 

         Latitude Format:

         DDMMSS.SSH

         DD = Degree(s) with a range of 0 through 90

         MM = Minutes(s) with a range of 0 through 59

         SS.SS = Second(s) with a range of 0 through 59.99

         H = Hemisphere with N for north and S for south

 

DOI Authority

  • Field Definition:  The Digital Object Identifier (DOI) Authority provides the infrastructure for the registration and services for a persistent reference. The DOI authority is used along with the DOI Name to view the associated URL for the product.

          Example:

               http://dx.doi.org or https://doi.org

 

DOI Name

  • Field Definition:  Digital Object Identifier is used to uniquely and permanently identify a dataset. The DOI name is more stable than a URL and is used as a permanent reference for the product. The DOI name can be entered into a DOI Authority system to view the associated URL for the product.

         Example:

             10.5067/MEaSUREs/GFSAD/GFSAD1KCM.001

 

Entity ID

  • Field Definition:  The naming convention of each file is based on the Local Granule ID. The Entity ID may match the Local Granule ID for some data sets.

          Format:

          Grid Format: PPPPPPPP_YYYY_LatLon_VVV_YYYYDDDHHMMSS.tif

          Global Format: PPPPPPPP.YYYY.VVV.YYYYDDDHHMMSS.tif

 

          PPPPPPPP= Product Short Name (Number of characters may vary by data set)

          YYYY = Nominal Acquisition Year

          Lat = Latitude of the 10 x 10 degree grid (N = North, S = South hemisphere)

          Lon = Longitude of the 10 x 10 degree grid (E = East, W = West hemisphere)

          VVV = Version Number

          YYYYDDDHHMMSS = Julian Date of Production

          tif = GeoTIFF Data Format

          Example:

               Grid Example: GFSAD30AFCE_2015_S20E10_001_2017261090100.tif

               Global Example: GFSAD1KCD.2010.001.2016348142525.tif

 

Local Granule ID

  • Field Definition:  The name of an individual file provided LP DAAC

          Format:

          Grid Format: PPPPPPPP_YYYY_LatLon_VVV_YYYYDDDHHMMSS.tif

          Global Format: PPPPPPPP.YYYY.VVV.YYYYDDDHHMMSS.tif

 

         PPPPPPPP= Product Short Name (Number of characters may vary by data set)

         YYYY = Nominal Acquisition Year

         Lat = Latitude of the 10 x 10 degree grid (N = North, S = South hemisphere)

         Lon = Longitude of the 10 x 10 degree grid (E = East, W = West hemisphere)

         VVV = Version Number

         YYYYDDDHHMMSS = Julian Date of Production

         tif = GeoTIFF Data Format

         Example:

             Grid Example: GFSAD30EUCEARUMECE_2015_N30E60_001_2016272130000.tif

            Global Example: GFSAD1KCM.2010.001.2016348142550.tif

 

Version Number

  • Field Definition:  The data version for the GFSAD products.

The Data Dictionaries are a set of information describing the contents, format, and structure of elements for EarthExplorer products.

Acquisition End Date

  • Field Definition:  The last day of data acquisition.

          Format:

          YYYY/MM/DD

Acquisition Start Date

  • Field Definition:  The first day of data acquisition.

          Format:

          YYYY/MM/DD

Coordinates - Decimal Degrees

  • Field Definition:  The latitude and longitude are provided in decimal degrees for the following fields:

    Scene Center Latitude and Longitude
    Northeast (NE) Corner Latitude and Longitude
    Northwest (NW) Corner Latitude and Longitude
    Southeast (SE) Corner Latitude and Longitude
    Southwest (SW) Corner Latitude and Longitude

    Latitude Format Decimal Degrees: -90.000 through 90.000
    Longitude Format Decimal Degrees: -180.000 through 180.000

    Number of decimal places will vary by dataset – check collection in EE.

Coordinates - Degrees, Minutes, Seconds

  • Field Definition:  The latitude and longitude of the scene in degrees, minutes, and seconds for the following fields:

          Values:

          Scene Center Latitude and Longitude

          Northeast (NE) Corner Latitude and Longitude

          Northwest (NW) Corner Latitude and Longitude

          Southeast (SE) Corner Latitude and Longitude

          Southwest (SW) Corner Latitude and Longitude

 

          Longitude Format:

          DDDMMSS.SSH

          DDD = Degree(s) with a range of 0 through 180

          MM = Minute(s) with a range of 0 through 59

          SS.SS = Second(s) with a range of 0 through 59.99

          H = Hemisphere with E for east and W for west

 

         Latitude Format:

         DDMMSS.SSH

         DD = Degree(s) with a range of 0 through 90

         MM = Minutes(s) with a range of 0 through 59

         SS.SS = Second(s) with a range of 0 through 59.99

         H = Hemisphere with N for north and S for south

 

DOI Authority

  • Field Definition:  The Digital Object Identifier (DOI) Authority provides the infrastructure for the registration and services for a persistent reference. The DOI authority is used along with the DOI Name to view the associated URL for the product.

          Example:

               http://dx.doi.org or https://doi.org

 

DOI Name

  • Field Definition:  Digital Object Identifier is used to uniquely and permanently identify a dataset. The DOI name is more stable than a URL and is used as a permanent reference for the product. The DOI name can be entered into a DOI Authority system to view the associated URL for the product.

         Example:

             10.5067/MEaSUREs/GFSAD/GFSAD1KCM.001

 

Entity ID

  • Field Definition:  The naming convention of each file is based on the Local Granule ID. The Entity ID may match the Local Granule ID for some data sets.

          Format:

          Grid Format: PPPPPPPP_YYYY_LatLon_VVV_YYYYDDDHHMMSS.tif

          Global Format: PPPPPPPP.YYYY.VVV.YYYYDDDHHMMSS.tif

 

          PPPPPPPP= Product Short Name (Number of characters may vary by data set)

          YYYY = Nominal Acquisition Year

          Lat = Latitude of the 10 x 10 degree grid (N = North, S = South hemisphere)

          Lon = Longitude of the 10 x 10 degree grid (E = East, W = West hemisphere)

          VVV = Version Number

          YYYYDDDHHMMSS = Julian Date of Production

          tif = GeoTIFF Data Format

          Example:

               Grid Example: GFSAD30AFCE_2015_S20E10_001_2017261090100.tif

               Global Example: GFSAD1KCD.2010.001.2016348142525.tif

 

Local Granule ID

  • Field Definition:  The name of an individual file provided LP DAAC

          Format:

          Grid Format: PPPPPPPP_YYYY_LatLon_VVV_YYYYDDDHHMMSS.tif

          Global Format: PPPPPPPP.YYYY.VVV.YYYYDDDHHMMSS.tif

 

         PPPPPPPP= Product Short Name (Number of characters may vary by data set)

         YYYY = Nominal Acquisition Year

         Lat = Latitude of the 10 x 10 degree grid (N = North, S = South hemisphere)

         Lon = Longitude of the 10 x 10 degree grid (E = East, W = West hemisphere)

         VVV = Version Number

         YYYYDDDHHMMSS = Julian Date of Production

         tif = GeoTIFF Data Format

         Example:

             Grid Example: GFSAD30EUCEARUMECE_2015_N30E60_001_2016272130000.tif

            Global Example: GFSAD1KCM.2010.001.2016348142550.tif

 

Version Number

  • Field Definition:  The data version for the GFSAD products.
Was this page helpful?