Articles | Volume 8, issue 3
Atmos. Meas. Tech., 8, 1323–1336, 2015
https://doi.org/10.5194/amt-8-1323-2015
Atmos. Meas. Tech., 8, 1323–1336, 2015
https://doi.org/10.5194/amt-8-1323-2015

Research article 19 Mar 2015

Research article | 19 Mar 2015

Cross-track Infrared Sounder (CrIS) satellite observations of tropospheric ammonia

M. W. Shephard and K. E. Cady-Pereira

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Short summary
Presented is a robust retrieval algorithm that demonstrates the capabilities of utilizing Cross-track Infrared Sounder (CrIS) satellite observations to globally retrieval ammonia (NH3) concentrations. Initial NH3 retrieval results show that CrIS is (i) sensitive to NH3 in the boundary layer, with peak vertical sensitivity typically around 850–750hPa (~2km), (ii) has a minimum detection limit of ~1ppbv (peak profile value typically at the surface), and (iii) typically has up to ~1 DOFS.