A blind test retrieval experiment for infrared limb emission spectrometry

T. von Clarmann, S. Ceccherini, A. Doicu, A. Dudhia, B. Funke, U. Grabowski, S. Hilgers, V. Jay, A. Linden, M. López-Puertas, F. J. Martín-Torres, V. Payne, J. Reburn, M. Ridolfi, F. Schreier, G. Schwarz, R. Siddans, T. Steck

Research output: Contribution to journalArticle

49 Citations (Scopus)

Abstract

The functionality and characteristics of six different data processors (i.e., retrieval codes in their actual software and hardware environment) for analysis of high-resolution limb emission infrared spectra recorded by the space-borne Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) have been validated by means of a blind test retrieval experiment based on synthetic spectra. For this purpose a self-consistent set of atmospheric state parameters, including pressure, temperature, vibrational temperatures, and abundances of trace gases and aerosols, has been generated and used as input for radiative transfer calculations for MIPAS measurement geometry and configuration. These spectra were convolved with the MIPAS field of view, spectrally degraded by the MIPAS instrument line shape, and, finally, superimposed with synthetic measurement noise. These synthetic MIPAS measurements were distributed among the participants of the project "Advanced MIPAS level-2 data analysis" (AMIL2DA), who performed temperature and species abundance profile retrievals by inverse radiative transfer calculations. While the retrieved profiles of atmospheric state parameters reflect some characteristics of the individual data processors, it was shown that all the data processors under investigation are capable of producing reliable results in the sense that deviations of retrieved results from the reference profiles are within the margin that is consistent with analytical error estimation.

Original languageEnglish
Pages (from-to)ACH 12-1 - ACH 12-13
JournalJournal of Geophysical Research D: Atmospheres
Volume108
Issue number23
Publication statusPublished - Dec 16 2003
Externally publishedYes

Keywords

  • MIPAS
  • Remote sensing
  • Retrieval

ASJC Scopus subject areas

  • Geophysics
  • Forestry
  • Oceanography
  • Aquatic Science
  • Ecology
  • Water Science and Technology
  • Soil Science
  • Geochemistry and Petrology
  • Earth-Surface Processes
  • Atmospheric Science
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science
  • Palaeontology

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  • Cite this

    von Clarmann, T., Ceccherini, S., Doicu, A., Dudhia, A., Funke, B., Grabowski, U., Hilgers, S., Jay, V., Linden, A., López-Puertas, M., Martín-Torres, F. J., Payne, V., Reburn, J., Ridolfi, M., Schreier, F., Schwarz, G., Siddans, R., & Steck, T. (2003). A blind test retrieval experiment for infrared limb emission spectrometry. Journal of Geophysical Research D: Atmospheres, 108(23), ACH 12-1 - ACH 12-13.