Near Real-Time VIIRS/JPSS-1 L3 Global Daily 500m SIN Grid Snow Cover, Grain Size, and Dust Radiative Forcing, Version 1
Data set id:
VJ1SCGDRF_NRT
DOI: 10.5067/1M2W6PZRN4VD
This is the most recent version of these data.
Version Summary
Version Summary
Initial release
Overview
The VIIRS Snow Covered Area and Grain-size (VIIRS SCAG) and VIIRS Dust Radiative Forcing in Snow (VIIRS DRFS) algorithms are applied to near real-time VIIRS JPSS-1/NOAA20 surface reflectance data (VJ109GA_NRT). The combined dataset VJ1SCGDRF_NRT includes the following parameters: snow fraction, snow grain size , vegetation fraction, rock fraction, ice fraction, and shade fraction from the SCAG algorithm (Painter et al, 2009) and snow darkening, radiative forcing, and snow grain size from the DRFS algorithm (Painter et al, 2012). More information on the application of SCAG to the VIIRS sensor is detailed in Rittger et al, 2021. These data are provided in NetCDF format, and the data are released by individual tiles or by region of tiles.
Parameter(s):
LAND ICE FRACTION
ROCK FRACTION
SHADE FRACTION
SNOW FRACTION
SNOW GRAIN SIZE
SNOW RADIATIVE FORCING
VEGETATION FRACTION
VISIBLE SNOW DARKENING
Platform(s):
JPSS-1
Sensor(s):
VIIRS
Data Format(s):
netCDF-4
Temporal Coverage:
- 1 September 2026 to present
Temporal Resolution:
- 1 day
Spatial Resolution:
- 500 meters
- 500 meters
Spatial Reference System(s):
- WGS 84EPSG:4326
Spatial Coverage:
- Northern latitude90Southern latitude-90Eastern longitude180Western longitude-180
Blue outlined yellow areas on the map below indicate the spatial coverage for this data set.
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