Articles | Volume 13, issue 11
Atmos. Meas. Tech., 13, 5891–5921, 2020
https://doi.org/10.5194/amt-13-5891-2020
Atmos. Meas. Tech., 13, 5891–5921, 2020
https://doi.org/10.5194/amt-13-5891-2020

Research article 09 Nov 2020

Research article | 09 Nov 2020

Probabilistic retrieval of volcanic SO2 layer height and partial column density using the Cross-track Infrared Sounder (CrIS)

David M. Hyman and Michael J. Pavolonis

Data sets

JPSS-1 CrIS Level 1B Full Spectral Resolution V2 H. Revercomb and L. Strow https://doi.org/10.5067/EETSCFBDBLX6

The NCEP/NCAR 40-Year Reanalysis Project (https://www.esrl.noaa.gov/psd/data/gridded/data.ncep.reanalysis.html) E. Kalnay, M. Kanamitsu, R. Kistler, W. Collins, D. Deaven, L. Gandin, M. Iredell, S. Saha, G. White, J. Woollen, Y. Zhu, M. Chelliah, W. Ebisuzaki, W. Higgins, J. Janowiak, K. C. Mo, C. Ropelewski, J. Wang, A. Leetmaa, R. Reynolds, R. Jenne, and D. Joseph https://doi.org/10.1175/1520-0477(1996)077<0437:TNYRP>2.0.CO;2

trace_gas_background_spectra D. M. Hyman https://gitlab.ssec.wisc.edu/dhyman/trace_gas_background_spectra

TROPOMI Level 2 Sulphur Dioxide Total Column, Version 02 Copernicus Sentinel-5P https://doi.org/10.5270/S5P-74eidii

Overview of the CALIPSO Mission and CALIOP Data Processing Algorithms (https://www-calipso.larc.nasa.gov/tools/data_avail/) D. M. Winker, M. A. Vaughan, A. Omar, Y. Hu, K. A. Powell, Z. Liu, W. H. Hunt, and S. A. Young https://doi.org/10.1175/2009JTECHA1281.1

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Short summary
Understanding the lateral extent, altitude, and amount of sulfur dioxide (SO2) is important for studying volcanic clouds in support of aviation safety and for analyzing the effects of volcanoes on global climate. In this study, we detail an enhanced satellite measurement that provides probability distributions for the altitude and concentration of SO2 instead of single estimates using the Cross-track Infrared Sounder (CrIS) on the Joint Polar Satellite System (JPSS) series of satellites.