NOAA Climate Data Record (CDR) Normalized Difference Vegetation Index (NDVI) Data Dictionary

 

Begin Date

• Field Definition:  The first day of data acquisition for the source data at the start of the collection period. The begin date and end date are used to indicate the date range.

               Format:
               YYYY/MM/DD
               YYYY = Year
               MM = Month
               DD = Day
 

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
 

Date Updated

• Field Definition:  The date of update (if any) to the data.

               Format:
               YYYY/MM/DD
               YYYY = Year
               MM = Month
               DD = Day
 

Datum

• Field Definition:  The horizontal reference system associated with the data.

               Example:
               WGS84
 

End Date

• Field Definition:  The last day of data acquisition for the source data at the end of the collection period. The begin date and end date are used to indicate the date range.

               Format:
               YYYY/MM/DD
               YYYY = Year
               MM = Month
               DD = Day
 

Entity ID

• Field Definition:  This field describes the naming convention of each file.

               Format:
               DDDVVVVPPPPPPPSSSSSSYYYYMMDD

               DDD = Data set designator
               VVVV = Version
               PPPPPPP = Product Type
               SSSSSS = Satellite/Platform
               YYYY = Year
               MM = Month
               DD = Day

               Example:
               AVHV004AVH13C1NOAA0919850615
 

Layers

• Field Definition:  A list of the NDVI layers (bands) included in the download.

               Values:
               NDVI = Normalized Difference Vegetation Index
               QA = Quality Assurance
               TIMEOFDAY = Time of Day
 

Map Projection

• Field Definition:  The geometric reference system used to map the data.

               Example:
               Geographic
 

Resolution

• Field Definition:  The distance on the ground represented by each pixel.
   

Satellite

• Field Definition:  The number of the NOAA satellite which acquired the source data.

              Example:
              NOAA-07
 

Sensor

• Field Definition:  The instrument on the satellite that was used to acquire the source data used to product.

              Values:
              AVHRR
 

Units

• Field Definition:  The unit of measure associated with the resolution.

               Values:
               Degrees
 

Vendor ID

• Field Definition:  The original file name provided by the vendor.

               Example:
               AVHRR-Land_v004_AVH13C1_NOAA-18_20130620_c20140415150413