CLDCR_L2_VIIRS_SNPP - VIIRS/SNPP Cirrus Reflectance 6-min L2 Swath 750m



The Suomi National Polar-orbiting Partnership (SNPP) Visible Infrared Imaging Radiometer Suite (VIIRS) NASA standard Level-2 (L2) cirrus reflectance represents an orbit-level product (Short-name: CLDCR_L2_VIIRS_SNPP) that provides satellite-derived cirrus reflectance measurements. This product uses an adapted version of the MODIS MOD06 algorithm with major modifications and improvements. CLDCR_L2_VIIRS_SNPP draws from the following moderate-resolution (M) solar reflective VIIRS bands: visible/near-infrared; 0.4 – 1.0 µm, M-band 8 (shortwave infrared (SWIR); 1.23 – 1.25 µm), M-band 9 (SWIR; 1.37 – 1.38 µm), M-band 10 (SWIR; 1.58 – 1.64 µm), and M-band 11 (SWIR; 2.23 – 2.28 µm).

The L2 netCDF product contains the following 5 Science Data Set (SDS) layers:

  1. Cirrus Reflectance_Vis_NIR
  2. Cirrus Reflectance_SWIR_M08
  3. Cirrus Reflectance_ SWIR_M10
  4. Cirrus Reflectance_ SWIR_M11
  5. Cirrus Reflectance_QA

In the interest of maintaining manageable file sizes, the related geolocation datasets are not included in this product. The LAADS DAAC maintains and serves the associated geolocation product (VNP03MOD) and the calibrated radiances product (VNP02MOD), both of which users may acquire.

Consult the NASA VIIRS Suomi-NPP Level-2 Cirrus Reflectance Product User Guide for additional information.

Links


Shortname: CLDCR_L2_VIIRS_SNPP
Platform: Suomi-NPP
Instrument: VIIRS
Processing Level: Level-2
Data Format: netCDF4
Spatial Resolution: 750 m
Temporal Resolution: 6 minute
ArchiveSets: 5110
Collection: NPP VIIRS collection 1.0 (ArchiveSet 5110)
Data Authors: Bo-Cai Gao, Rong-Rong Li
Dataset Originator/Creator: Cirrus Reflectance team, Naval Research Laboratory, Washington DC
PGE Number: NONE
File Naming Convention:

Syntax: ESDT.AYYYYDDD.HHMM.CCC.YYYYDDDHHMMSS.Format
Example: CLDCR_L2_VIIRS_SNPP.A2020001.0000.001.2020321160333.nc

  • ESDT: Earth Science Data Type or Shortname
  • A: Stands for Acquisition
  • YYYYDDD: Data acquisition year and Day-of-year
  • 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
Citation: We kindly request that you cite the use of this data set in a publication using the following references:

Gao, B., & Li, R. (2017). Removal of thin cirrus scattering effects in Landsat 8 OLI images using the cirrus detecting channels, Remote Sensing, 9, 834 (doi:10.3390/rs908-834).

Gao, B., Yang, P., Han, W., Li, R., & Wiscombe, W. (2002). An algorithm using visible and 1.38-µm channels to retrieve cirrus cloud reflectances from aircraft and satellite data, IEEE Transactions on Geoscience and Remote Sensing, 40, 1659–1668.

Gao, B., Kaufman, Y., Han, W., & Wiscombe, W. (1998). Correction of thin cirrus path radiance in the 0.4-1.0 µm spectral region using the sensitive 1.375-µm cirrus detecting channel, J. Geophys. Res., 103, 32169-32176.

Gao, B., & Kaufman, Y. (1995). Selection of the 1.375-µm MODIS channel for remote sensing of cirrus clouds and stratospheric aerosols from space, J. Atm. Sci., 52, 4231-4237.
Gao, B., Goetz, A., & Wiscombe, W. (1993). Cirrus cloud detection from airborne imaging spectrometer data using the 1.38 µm water vapor band, Geophys. Res. Lett., 20, 301-304.
Keywords: SNPP VIIRS, L2 Swath, 750 m, 6-Minute, Cirrus Reflectance
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