Vegetation Index and Phenology (VIP) Data Dictionary

Acquisition End Date

• Field Definition:  The last day of data acquisition.

                 Format:
                 YYYY/MM/DD

Acquisition Start Date
 

• Field Definition:  The first day of data acquisition.

                 Format:
                 YYYY/MM/DD
 

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, 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
 

DOI Authority

• Field Definition:  The Digital Object Identifier (DOI) Authority provides the infrastructure for the registration and services for a persistent reference. The DOI Authority is used along with the DOI Name to view the associated URL for the product.

                 Example:
                 http://dx.doi.org
                 https://doi.org
                 

DOI Name

• Field Definition:  Digital Object Identifier is used to uniquely and permanently identify a dataset. The DOI name is more stable than a URL and is used as a permanent reference for the product. The DOI name can be entered into a DOI Authority system to view the associated URL for the product.

               Example:
               10.5067/MEaSUREs/VIP/VIPPHEN_EVI2.004
 

Entity ID

• Field Definition:  The naming convention of each file is based on the Local Granule ID. The Entity ID may match the Local Granule ID for some data sets.

                 Format:
                 PPPPPPPP.AYYYYDDD.VVV.YYYYDDDHHMMSS.hdf

                 PPPPPPPP= Product Short Name (Number of characters may vary by data set)
                 AYYYY = Acquisition Year
                 DDD = Julian Day for Acquisition Start Date (not used for yearly products)
                 VVV = Version Number
                 YYYYDDDHHMMSS = Julian Date of Production
                 hdf = Data Format

                Example:
                VIPPHEN_EVI2.A2013.004.2016180135337.hdf
                VIP01.A2014214.004.2016178012553.hdf
 

Local Granule ID

• Field Definition:  The name of an individual file.

                 Format:
                 PPPPPPPP.AYYYYDDD.VVV.YYYYDDDHHMMSS.hdf

                 PPPPPPPP= Product Short Name (Number of characters may vary by data set)
                 AYYYY = Acquisition Year
                 DDD = Julian Day for Acquisition Start Date (not used for yearly products)
                 VVV = Version Number
                 YYYYDDDHHMMSS = Julian Date of Production
                 hdf = Data Format

                Example:
                VIPPHEN_EVI2.A2013.004.2016180135337.hdf
                VIP15.A1992032.004.2016170114032.hdf
 

Version Number

• Field Definition:  The data version for the VIP product.