Shuttle Radar Topography Mission (SRTM) Water Body Data (SWBD) Data Dictionary

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 – check collection in EE.

 

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

 

Compressed File Size

• Field Definition:  The compressed size of the data file.
  
   

Date Updated

• Field Definition:  Day, month, and year of the last update.
  
   

Entity ID

• Field Definition:  This field describes the naming convention for the SWDB tiles.

              Format:

              SWBDW068S38S

              SWBD = Dataset designator SRTM Water Body Data

              E or W (E = East, W = West hemisphere)

              Next three characters indicate lower left corner Longitude

              N or S (N = North, S = South hemisphere)

              Next two characters indicate lower left corner Latitude

              Last character indicates the region of coverage (N = North America, S = South America, I = Islands, E = Eurasia, A =                            Australia, and F = Africa)

 

Format

• Field Definition:  This field identifies the data format of the tile.

              Values:

              Valid value: ESRI Shapefile (SHP)

 

Region

• Field Definition:  This field identifies region of coverage for the shapefile.

               Values:

               North America

               South American

               Islands

               Eurasia

               Australia

               Africa

 

Publication Date

• Field Definition:  The year, month, and day the data were published.