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Description

The VIIRS Near Real Time (NRT) Vegetation Indices 8-Day L3 Global 500m SIN Grid data, short-name VNP13A4N are provided everyday at 500-meter spatial resolution as a gridded level-3 product in the Sinusoidal projection. Vegetation indices are used for global monitoring of vegetation conditions and are used in products displaying land cover and land cover changes. These data may be used as input for modeling global biogeochemical and hydrologic processes and global and regional climate. These data also may be used for characterizing land surface biophysical properties and processes including primary production and land cover conversion.

Product Summary

Platforms
Suomi-NPP
Instruments
VIIRS
Spatial Extent

N: 90 S: -90 E: 180 W: -180

Spatial Resolution
500 Meters x 500 Meters
Geographic Region
GLOBAL
Coordinate System
CARTESIAN
Granule Spatial Representation
GEODETIC
Temporal Extent
2025-01-01
Data Partner
Land, Atmosphere Near real-time Capability for EOS (LANCE) Moderate Resolution Imaging Spectroradiometer (MODIS) (NASA/GSFC/EOS/ESDIS/LANCE MODIS)
Concept ID
C3363997464-LANCEMODIS
Data State
ACTIVE
Processing Level
3
Published
Science Keywords
Vegetation Index ,
Reflectance

Citation

Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.

Copy Citation

NASA VIIRS Land Science Team. (2025). VIIRS/NPP Vegetation Indices 8-Day L3 Global 500m SIN Grid [Data set]. NASA LANCE MODIS at the MODAPS. https://doi.org/10.5067/VIIRS/VNP13A4N.002 Date Accessed: 2025-12-14

File Naming Convention

File_naming_convention = VNP13A4N.AYYYYDDD.hXXvYY.VVV.h5
Example: VNP13A4N.A2025007.h00v08.002.h5

AYYYYDDD = Acquisition Year and Day of Year
HHMM = Hour and minute of acquisition
hXXvYY = Sinusoidal Tile Identifier (horizontalXXverticalYY)
VVV = Collection Version number
h5 = HDF-EOS (version 5) file format

Documents