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Global Web-Enabled Landsat Data Dictionary

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By Earth Resources Observation and Science (EROS) Center July 8, 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:

          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

 

          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.

 

Coordinates - Degrees, Minutes, Seconds

  • Field Definition:  The latitude and longitude are provided 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:

           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.

           Values:

           Prefix – 10. 5067 identifies registrant agent that has been assigned for NASA ESDIS.

           Suffix – identifies the data item as assigned and managed by the registrant agent.

 

          Example: 10.5067/MEaSUREs/GWELD/GWELDMO.031

 

Entity ID

  • Field Definition:  This field uniquely identifies the individual GWELD scene in EarthExplorer.

    Example
    L57.Globe.annual.2011.hh19vv04.h2v3.doy014to365.NBAR.v3.0.hdf

 

Horizontal Tile Number

  • Field Definition:  GWELD products are defined in the Sinusoidal coordinate system to promote continuity of NASA’s Moderate Resolution Imaging Spectroradiometer (MODIS) land tile grid. The horizontal tile number of the 10⁰ X 10⁰ MODIS grid for the granule increases from left to right.

           Values:

           00 through 35

 

Local Granule ID

  • Field Definition:  The name of an individual file.

          Format:

          Lss.Globe.Period.Year.hhxx.vvyy.hx.vy.doyMINtoMAX.NBAR.v.V.V.hdf

          Lss = Landsat satellite or combination of satellites used in the product (4, 5, 7)

          Globe = Area of interest

          Period = Annual or month01 through month12

          Year = Year the data were acquired

          hxx = Horizontal MODIS Tile Number

          vyy = Vertical MODIS Tile Number

          hx = Horizontal GWELD Tile Number within the MODIS land tile

          vy = Vertical GWELD Tile Number within the MODIS land tile

          doyMINtoMAX = Day of year minimum (start) to maximum (end) for the data acquisition

          NBAR = Product Type (Nadir Bidirectional Reflectance Distribution Function (BRDF)-Adjusted Reflectance)

          v.V.V = Version (Major and minor algorithm version changes reflected in the first and second digits, respectively)

          hdf = Format

 

          Example Annual: L57.Globe.annual.2011.hh07vv06.h5v4.doy014to363.NBAR.v3.0.hdf

          Example Monthly: L04.Globe.month12.1988.hh08vv06.h4v5.doy343to343.NBAR.v3.1.hdf

 

Version Number

  • Field Definition:  The version number of the data set.

 

Vertical Tile Number

  • Field Definition:  GWELD products are defined in the Sinusoidal coordinate system to promote continuity of NASA’s Moderate Resolution Imaging Spectroradiometer (MODIS) land tile grid. The vertical tile number of the 10⁰ X 10⁰ MODIS grid for the granule increases from top to bottom.

           Values:

           00 through 17

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:

          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

 

          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.

 

Coordinates - Degrees, Minutes, Seconds

  • Field Definition:  The latitude and longitude are provided 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:

           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.

           Values:

           Prefix – 10. 5067 identifies registrant agent that has been assigned for NASA ESDIS.

           Suffix – identifies the data item as assigned and managed by the registrant agent.

 

          Example: 10.5067/MEaSUREs/GWELD/GWELDMO.031

 

Entity ID

  • Field Definition:  This field uniquely identifies the individual GWELD scene in EarthExplorer.

    Example
    L57.Globe.annual.2011.hh19vv04.h2v3.doy014to365.NBAR.v3.0.hdf

 

Horizontal Tile Number

  • Field Definition:  GWELD products are defined in the Sinusoidal coordinate system to promote continuity of NASA’s Moderate Resolution Imaging Spectroradiometer (MODIS) land tile grid. The horizontal tile number of the 10⁰ X 10⁰ MODIS grid for the granule increases from left to right.

           Values:

           00 through 35

 

Local Granule ID

  • Field Definition:  The name of an individual file.

          Format:

          Lss.Globe.Period.Year.hhxx.vvyy.hx.vy.doyMINtoMAX.NBAR.v.V.V.hdf

          Lss = Landsat satellite or combination of satellites used in the product (4, 5, 7)

          Globe = Area of interest

          Period = Annual or month01 through month12

          Year = Year the data were acquired

          hxx = Horizontal MODIS Tile Number

          vyy = Vertical MODIS Tile Number

          hx = Horizontal GWELD Tile Number within the MODIS land tile

          vy = Vertical GWELD Tile Number within the MODIS land tile

          doyMINtoMAX = Day of year minimum (start) to maximum (end) for the data acquisition

          NBAR = Product Type (Nadir Bidirectional Reflectance Distribution Function (BRDF)-Adjusted Reflectance)

          v.V.V = Version (Major and minor algorithm version changes reflected in the first and second digits, respectively)

          hdf = Format

 

          Example Annual: L57.Globe.annual.2011.hh07vv06.h5v4.doy014to363.NBAR.v3.0.hdf

          Example Monthly: L04.Globe.month12.1988.hh08vv06.h4v5.doy343to343.NBAR.v3.1.hdf

 

Version Number

  • Field Definition:  The version number of the data set.

 

Vertical Tile Number

  • Field Definition:  GWELD products are defined in the Sinusoidal coordinate system to promote continuity of NASA’s Moderate Resolution Imaging Spectroradiometer (MODIS) land tile grid. The vertical tile number of the 10⁰ X 10⁰ MODIS grid for the granule increases from top to bottom.

           Values:

           00 through 17