"VJ102MOD is the short-name for the Joint Polar-orbiting Satellite System-1 (JPSS-1/NOAA20; referred to hereafter as J1) platform-derived NASA VIIRS L1B calibrated radiances product that comprise sixteen moderate-resolution or M-bands, which have a spatial resolution of 750-meters at nadir. These M-bands comprise eleven reflective solar bands (RSB) and five thermal emissive bands (TEB). Each of the M-bands has 16 detectors in the along-track direction with 16 rows of pixels per scan that provide a 750-m resolution. Ranging in wavelengths from 0.402 µm to 12.49 µm, the M-bands are sensitive to visible, near-, shortwave-, mediumwave-, and longwave-infrared wavelengths. Derived from the NASA VIIRS L1A raw radiances, this product includes calibrated and geolocated radiance and reflectance data, quality flags, and granule- and collection-level metadata. In contrast to a MODIS L1B product, which temporally spans 5 minutes, the VIIRS L1B calibrated radiances product contains a nominal temporal duration of 6 minutes. The image dimensions of the 750-m swath product measure 3232 lines by 3200 pixels.
The variables in the observation data in the J1-derived VIIRS L1B calibration product are almost similar to those from the SNPP-VIIRS L1B (collection-1) except for one major change: The J1 VIIRS L1B calibration product’s quality flags include a detector quality flag with associated masks, their values and meanings for all the bands (I, M, and DNB)."
||NPP and JPSS1 VIIRS data 2.1 (ArchiveSet 5201)
|File Naming Convention:
- ESDT Earth Science Data Type or Shortname
- A Stands for Acquisition
- YYYYDDD Data acquisition year and Day-of-year per the Julian Calendar
- HHMM Acquisition Hour and Minute
- CCC Version ID of the data collection
- YYYYDDDHHMMSS Processing year, Day-of-year, UTC time (hour, minutes, seconds)
- Format File format suffix, which in the above case represents netCDF4/HDF5
||JPSS-1 VIIRS, L1B, Moderate resolution, M-bands, Calibrated Radiances