WATVP_D3_VIIRS_SNPP - VIIRS/SNPP Level-3 Daily Mean Water Vapor Global 0.5x0.5 Degree Grid

Platform: Suomi-NPP
Instrument: VIIRS
Processing Level: Level-3
File Size (MB): ~35 MB
Data Format: netCDF4
Spatial Resolution: 0.5d
Temporal Resolution: daily
Spatial Coverage: Global
ArchiveSets: 5110
Collection: NPP VIIRS collection 1.0 (ArchiveSet 5110)
Production Frequency: One file per day
Data Authors: Dr. E. Eva Borbas (PI), Dr. Zhenglong Li, and Dr. W. Paul Menzel
Dataset Originator/Creator: VIIRS Atmosphere Science Team/Space Science and Engineering Center, University of Wisconsin-Madison
PGE Number: NONE
File Naming Convention:


  • Example: WATVP_D3_VIIRS_SNPP.A2019017.001.2019044222604.nc
  • ESDT = Earth Science Data Type or Shortname
  • A = Stands for Acquisition
  • YYYYDDD = Data acquisition year and Day-of-year per the Julian Calendar
  • CCC = Version ID of the data collection
  • YYYYDDDHHMMSS = Processing year, Day-of-year (Julian), UTC time (hour, minutes, seconds)
  • Format = File format suffix, which in the above case represents netCDF4
  • Example: WATVP_M3_VIIRS_SNPP.A2018001.001.2018040134410.nc
Citation: Please cite the use of this data set in a publication using the following citation.
Author (PI), et al., 2019. Product name as given on product web site. NASA MODIS Adaptive Processing System, Goddard Space Flight Center, USA: [DOI link].

For example:
Borbas, E.E., et al, 2019, VIIRS/SNPP Level-3 Daily Mean Water Vapor Products. NASA MODIS Adaptive Processing System, Goddard Space Flight Center, USA: https://dx.doi.org/10.5067/VIIRS/WATVP_D3_VIIRS_SNPP.001
Keywords: VIIRS, L3 Grid, Daily aggregation, 0.5 deg., Total Precipitable Water Vapor, NUCAPS