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

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By Earth Resources Observation and Science (EROS) Center July 19, 2021

The Data Dictionaries are a set of information describing the contents, format, and structure of elements for EarthExplorer products.

 

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

The Data Dictionaries are a set of information describing the contents, format, and structure of elements for EarthExplorer products.

 

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

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