Retrieval of temperature profiles from CHAMP for climate monitoring: intercomparison with Envisat MIPAS and GOMOS and different atmospheric analysesReport as inadecuate




Retrieval of temperature profiles from CHAMP for climate monitoring: intercomparison with Envisat MIPAS and GOMOS and different atmospheric analyses - Download this document for free, or read online. Document in PDF available to download.

1 Wegener Center for Climate and Global Change 2 Institute for Geophysics 3 JPL - Jet Propulsion Laboratory 4 NMT - New Mexico Institute of Mining and Technology New Mexico Tech 5 ESRIN - European State Research Institute 6 IMK - Institute for Meteorology and Climate Research

Abstract : This study describes and evaluates a Global Navigation Satellite System GNSS radio occultation RO retrieval scheme particularly aimed at delivering bias-free atmospheric parameters for climate monitoring and research. The focus of the retrieval is on the sensible use of a priori information for careful high-altitude initialisation in order to maximise the usable altitude range. The RO retrieval scheme has been meanwhile applied to more than five years of data September 2001 to November 2006 from the German CHAllenging Minisatellite Payload for geoscientific research CHAMP satellite. In this study it was validated against various correlative datasets including the Michelson Interferometer for Passive Atmospheric Sounding MIPAS and the Global Ozone Monitoring for Occultation of Stars GOMOS sensors on Envisat, five different atmospheric analyses, and the operational CHAMP retrieval product from GeoForschungsZentrum GFZ Potsdam. In the global mean within 10 to 30 km altitude we find that the present validation observationally constrains the potential RO temperature bias to be



Author: A. Gobiet - G. Kirchengast - G. L. Manney - M. Borsche - C. Retscher - G. Stiller -

Source: https://hal.archives-ouvertes.fr/



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