Articles | Volume 14, issue 2
Atmos. Meas. Tech., 14, 1191–1203, 2021
https://doi.org/10.5194/amt-14-1191-2021
Atmos. Meas. Tech., 14, 1191–1203, 2021
https://doi.org/10.5194/amt-14-1191-2021

Research article 15 Feb 2021

Research article | 15 Feb 2021

Improvement in tropospheric moisture retrievals from VIIRS through the use of infrared absorption bands constructed from VIIRS and CrIS data fusion

E. Eva Borbas et al.

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Cited articles

Ackerman, S., Frey, R., Holtz, R., and Dutcher, S: VIIRS/SNPP Cloud Mask and Spectral Test Results 6-min L2 Swath 750m, Version-1, NASA Level1 and Atmosphere Archive & Distribution System (LAADS) Distributed Active Archive Center (DAAC), Goddard Space Flight Center, USA, https://doi.org/10.5067/VIIRS/CLDMSK_L2_VIIRS_SNPP.001, 2019. 
Baum, B. A., Weisz, E., and Menzel, W. P.: SNPP VIIRS+CrIS Fusion L2 Product, NASA MODIS Adaptive Processing System, Goddard Space Flight Center, USA, https://doi.org/10.5067/VIIRS/FSNRAD_L2_VIIRS_CRIS_SNPP.001, 2019a. 
Baum, B. A., Menzel, W. P., and Weisz E.: Fusion of CrIS and VIIRS data to construct infrared (IR) absorption band radiances for VIIRS, Algorithm Theoretical Basis Document, V1.0, Cooperative Institute of Meteorological Satellite Studies, University of Wisconsin-Madison, available at: https://ladsweb.modaps.eosdis.nasa.gov/missions-and-measurements/viirs/VIIRSCrISFusionATBDv1.1.pdf (last access: 22 January 2021), 2019b. 
Bedka S., Knuteson, R., Revercomb, H., Tobin, D., and Turner, D.: An assessment of the absolute accuracy of the Atmospheric Infrared Sounder v5 precipitable water vapor product at tropical, midlatitude, and arctic ground-truth sites: September 2002 through August 2008, J. Geophys. Res.-Atmos., 117, D17310, https://doi.org/10.1029/2009JD013139, 2010. 
Bentley, J. L.: Multidimensional binary search trees used for associative searching, Commun. ACM, 18, 509–517, 1975. 
Short summary
As the VIIRS satellite sensor has no infrared (IR) H2O absorption bands, we construct the missing bands through the fusion of imager (VIIRS) and sounder (CrIS) data in an attempt to improve derivation of moisture products. This study clearly demonstrates the positive impact by adding fusion IR absorption spectral bands and the potential for continuing the moisture record from MODIS and the previous generations of polar-orbiting satellite sensors.