Articles | Volume 16, issue 22
Research article
18 Nov 2016
Research article |  | 18 Nov 2016

First detection of ammonia (NH3) in the Asian summer monsoon upper troposphere

Michael Höpfner, Rainer Volkamer, Udo Grabowski, Michel Grutter, Johannes Orphal, Gabriele Stiller, Thomas von Clarmann, and Gerald Wetzel


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Discussed (final revised paper)

Discussed (preprint)

Latest update: 17 Jun 2024
Short summary
Ammonia (NH3) in the atmosphere is important because of its influence on aerosol and cloud formation and its increasing anthropogenic emissions. We report the first detection of NH3 in the upper troposphere by the analysis of infrared limb emission spectra measured by the MIPAS instrument on Envisat. We have found enhanced values of NH3 within the Asian summer monsoon upper troposphere, where it might contribute to the composition of the Asian tropopause aerosol layer.
Final-revised paper