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.

Note: This is a near real-time product only. Standard historical data and imagery for VNP13A4N (8-Day 500m) are not available. The only 500m standard Vegetation Indices product available is a 16-Day composite (VNP13A1). So, users can either use VNP13A1, use the NDVI standard products from LAADS web (https://ladsweb.modaps.eosdis.nasa.gov/search/), or access the science quality VNP09A1 data and create the VI product of their own.