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MIPAS: Scientific Results

Herbert Fischer(1)

(1) Universität Karlsruhe, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany

Abstract

MIPAS measurements in the spectral range between 4.1 and 14.6 µm are processed in order to derive global distributions of temperature and more than 25 trace constitutents in the atmosphere. In addition, the broadband spectra allow to determine properties of Polar Stratospheric Clouds (PSCs) and aerosol amount after volcanic eruptions.

The strength of the MIPAS experiment is demonstrated by the simultaneous detection of the compounds of whole trace gas families (e.g. NOy) or of chemically coupled trace constitutents (e.g. ClONO2 and ClO). In addition, it will be shown that essential properties of PSCs (like particle radius and composition) can be derived from corresponding spectra including the spatial distribution and temporal development of PSCs. All this information can be used for studying chemistry, dynamics and microphysics in the stratosphere.

MIPAS data can also be used to study the tropospheric-stratospheric exchange (H2O distributions), the mesospheric-stratospheric exchange (NO/NO2 distributions), the influence of the varying solar radiation and non-LTE effects in the upper atmosphere. Further investigations deal with the analysis of highly resolved spectra in order to determine the concentration profiles of isotopes (e.g. of water vapour). These results yield complementary information on dynamics and transport in the atmosphere.

The talk will be concluded with future expectations on MIPAS results.

 

Keywords: ESA European Space Agency - Agence spatiale europeenne, observation de la terre, earth observation, satellite remote sensing, teledetection, geophysique, altimetrie, radar, chimique atmospherique, geophysics, altimetry, radar, atmospheric chemistry