Global Land Survey 2005; Landsat 7 ETM+ and Landsat 5 TM (2003-2008) Data Dictionary

 

Acquisition Date

• Field Definition:  The date the image was acquired.

          Format:

          YYY/MONTH/DD

 

Browse Availability

• Field Definition:  This flag identifies whether or not the entity has a browse image available with it. A browse image provides the user with a visual overview of an inventory item. The browse image is an online digitally subsampled raster image.

          Valid Codes:

          Y = Yes

          N = No

 

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

 

Datum

• Field Definition:  The datum associated with the image.

         Valid Code:

         WGS 84 = Worldgeodetic System 1984

 

Entity ID

• Field Definition:  This field uniquely identifies the individual landsat scene.

         Example:

              LE71770512006259ASN00

 

         Valid Format:

         L = Landsat

         E = ETM+

         7 = Satellite number

         177 = Path (WRS-2)

         051 = Row (WRS-2)

         2006 = Four digit-year of acquisition

         259 = Julian date of acquisition

         ASN = *Receiving Station

         00 = Version number reflecting how many times the scene was processed (0=first time processed, 1= scene reprocessed, etc.)

 

         AAA = Data held by EROS, North American receiving site unknown

         ASA = Data held by EROS, Receiving station, Alice Springs, Australia

         ASN = Data held by EROS, Receiving station, Alice Springs, Australia

         FUI = Data held by EROS, Receiving station, Fucino, Italy (Historical)

         GLC = Data held by EROS, Receiving station, Gilmore Creek, AK, US

         HOA = Data held by EROS, Receiving station, Hobart, Australia

         KIS = Data held by EROS, Receiving station, Kiruna, Sweden

         MTI = Data held by EROS, Receiving station, Matera, Italy

         EDC = Data held by EROS, Receiving station unknown

         PAC = Data held by EROS, Receiving station, Prince Albert, Canada

         GNC = Data held by EROS, Receiving station, Gatineau, Canada

         LGS = Data held by EROS, Landsat 5 data acquired by EROS beginning July 1, 2001

         MOR = Data held by EROS, Receiving station, Moscow, Russia

         MLK = Data held by EROS, Receiving station, Malinda, Kenya

         IKR = Data held by EROS, Receiving station, Irkutsk, Russia

         CHM = Data held by EROS, Receiving station, Chetumal, Mexico

         XXO = Data held by EROS, Receiving station unknown

         XXX = Data held by EROS, Receiving station unknown

 

Gap Fill Acquisition Date

• Field Definition:  Acquisition date of input scenes used for scan gap fill - up to five input scenes - included only for gap-filled products.

 

Gap Fill Percent

• Field Definition:  Percentage of image pixels present after gap-filling.

 

Orientation

• Field Definition:  The orientation of the image.

         Values:

         Valid code = NUP (North Up)

 

Product Type

• Field Definition:  The product type, processing level, of the image.

 

Registration Acquisition Date

• Field Definition:  Acquisition date of scene used for registration - one scene only - included only for gap-filled products.

 

Satellite

• Field Definition:  The satellite which acquired the data.

         Values:

         Valid Codes = Landsat 7

 

Scene Size

• Field Definition:  The size of all files associated with the scene.

 

Sun Azimuth

• Field Definition:  The Sun azimuth angle at the "true" WRS scene center. Azimuth is the angle of horizonal deviation, measured clockwise from the north.

         Values:

         -180.0000000 through +180.0000000 degrees (with 7-digit precision)

         NOTE: A positive value

 

Sun Elevation

• Field Definition:  The Sun elevation angle at the "true" WRS scene center. Elevation is the angle of vertical deviation from the tangent to the earth's surface (at scene center point) to the line between the sun's center and the scene center point. NOTE: The solar zenith angle will be 90 degrees minus the solar elevation angle.

         Values:

         0 through +90.0000000 (with a 7-digit precision)

 

WRS Path

• Field Definition:  The WRS-2 Path number associated with the scene.

         Values:

         001 through 233

 

WRS Row

• Field Definition:  The WRS-2 Row number associated with the scene.

         Values:

         001 through 244

 

Zone Number

• Field Definition:  The UTM zone number associated with the image.