Landsat Orthorectified Mosaic Data Dictionary

Column Count

• Field Definition:  The Column Count provides the number of pixels, or columns, in each row of the mosaic.

               Values:

               0 - 30000

 

Column Start

• Field Definition:  The column value of the pixel location (where 1,1 marks the upper left hand most pixel) that is associated with the XStart, YStart geographic coordinate.
  
   

Component Count

• Field Definition:  The Component Count is the number of individual orthorectified Landsat images for which some portion was use to create the mosaic.
  
   

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.

                 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

 

Datum

• Field Definition:  The map datum associated with the mosaic.

               Values:

               Valid value = WGS84

 

Earliest Acquisition Date

• Field Definition:  The earliest scene acquisition date within the mosaic.

              Format:

              YYYY = Year

              MM = Month

              DD = Day

 

Entity ID

• Field Definition:  This field uniquely identifies data which can be ordered from this collection.

               Values:

               Landsat 7 ETM+

               Format: MEN-ZZ-XX_YY_2000

               Example: MEN-10-40_LR_2000

               M = Mosaic

               E = Sensor (ETM+ for Enhanced Thematic Mapper Plus)

               N (or S) = N for Northern Hemisphere or S for Southern Hemisphere

               ZZ = UTM Zone (2 character)

               XX = Lower latitude boundary of 5x6 degree mosaic for Northern Hemisphere or Upper latitude boundary of 5x6 degree   mosaic for Southern Hemisphere.

               YY = Indicates the uncompressed quadrant represented by the 2.5X3 degree mosaic (i.e. UL=upper left, UR=upper right,  LL= lower left, or LR=lower right)

               2000 = Denotes circa year 2000 data.

               Landsat 5 TM

               Format: MTN-ZZ-XX_LOC

               Example: MTN-49-35_LOC

               M = Mosaic

               T = Sensor (TM for Thematic Mapper)

               N (or S) = N for Northern Hemisphere or S for Southern Hemisphere

               ZZ = UTM Zone

               XX = Lower latitude boundary of 5x6 degree mosaic for Northern Hemisphere or Upper latitude boundary of 5x6 degree mosaic for Southern Hemisphere.

               LOC = Indicates that a LOCAL contrast stretch has been performed.

 

File Format

• Field Definition:  Field Definition This field is used to identify the data format.

              Values:

              GeoTIFF (uncompressed)

              Mr.Sid (compressed)

 

Latest Acquisition Date

• Field Definition:  The latest scene acquisition date within the mosaic.

               Format:

               YYYY = Year

               MM = Month

               DD = Day

 

Platform

• Field Definition:  The Platform used to acquire the data.

               Values:

               Valid value = Landsat

 

Row Count

• Field Definition:  The delivered imagery is oriented as a row-major raster file with the origin in the upper left hand corner (same orientation as the input Landsat imagery). The Row Count provides the number of lines, or rows, in the mosaic.

              Values:

              0 - 20000

 

Row Start

• Field Definition:  The row value of the pixel location (where 1,1 marks the upper left hand most pixel) that is associated with the XStart, YStart geographic coordinate.
  
   

Sensor

• Field Definition:  This field is used to identify the sensor use to acquire the data.

               Values:

               TM = Landsat Thematic Mapper (Landsat 5)

               ETM+ = Enhanced Thematic Mapper Plus (Landsat 7)

 

Starting X

• Field Definition:  The UTM Easting of the Column Start pixel position.
  
   

Starting Y

• Field Definition:  The UTM Northing of the Row Start pixel position.
  
   

Units

• Field Definition:  The mapping units associated with the mosaic.
  
   

UTM Zone

• Field Definition:  The UTM Zone defining the map projection of the mosaic.
  
   

X Increment

• Field Definition:  The column (Easting) direction size of a pixel within the delivered image.
  
   

Y Increment

• Field Definition:  The row (Northing) direction size of a pixel within the delivered image.