Articles | Volume 8, issue 3
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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Cited articles

Alvarado, M. J., Payne, V. H., Mlawer, E. J., Uymin, G., Shephard, M. W., Cady-Pereira, K. E., Delamere, J. S., and Moncet, J.-L.: Performance of the Line-By-Line Radiative Transfer Model (LBLRTM) for temperature, water vapor, and trace gas retrievals: recent updates evaluated with IASI case studies, Atmos. Chem. Phys., 13, 6687–6711,, 2013.
Bash, J. O., Henze, D. K. , Zhu, L., Jeong, G.-R., Walker, J. T., Nowak, J. B., Neuman, J. A., Cady-Pereira, K. E., Shephard, M. W., Luo, M., and Pinder, R. W.: New insights into the diurnal variability of animal NH3 emissions using in situ, satellite and aloft observations, American Geophysical Union (AGU) Fall Meeting, San Francisco, CA, 12 December 2013, abstract #A42B-06, 2013.
Bash, J., Henze, D. K., Jeong, G.-R., Zhu, L., Cady-Pereira, K. E., Shephard, M. W., Pinder, R. W., and Luo, M.: The impact of the diurnal temporal allocation of ammonia emissions on air-quality model estimates of ambient ammonia and inorganic aerosol, in preparation, 2015.
Beer, R., Glavich, T., and Rider, D. M.: Tropospheric emission spectrometer for the Earth Observing System's Aura satellite, Appl. Optics, 40, 2356–2367, 2001.
Beer, R., Shephard, M. W., Kulawik, S. S., Clough, S. A., Eldering, A., Bowman, K. W., Sander, S. P., Fisher, B. M., Payne, V. H., Luo, M., Osterman, G. B., and Worden, J. R.: First satellite observations of lower tropospheric ammonia and methanol, Geophys. Res. Lett., 35, L09801,, 2008.
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.