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The horizontal resolution of MIPAS

Clarmann, T.von; De Clercq, C.; Ridolfi, M.; Höpfner, M.; Lambert, J.-C.

Limb remote sensing from space provides atmospheric composition measurements at high vertical resolution while the information is smeared in the horizontal domain. The horizontal components of two-dimensional (altitude and along-track coordinate) averaging kernels of a limb retrieval constrained to horizontal homogeneity can be used to estimate the horizontal resolution of limb retrievals. This is useful for comparisons of measured data with modeled data, to construct horizontal observation operators in data assimilation applications or when measurements of different horizontal resolution are intercompared. We present these averaging kernels for retrievals of temperature, H2O, O3, CH4, N2O, HNO3 and NO2 from MIPAS (Michelson Interferometer for Passive Atmospheric Sounding) high-resolution limb emission spectra. The horizontal smearing of a MIPAS retrieval in terms of full width at half maximum of the rows of the horizontal averaging kernel matrix varies typically between about 200 and 350 km for most species, altitudes and atmospheric conditions. The range where 95% of the information originates from varies from about 260 to 440 km for these cases. ... mehr

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Verlagsausgabe §
DOI: 10.5445/IR/1000041684
Veröffentlicht am 27.04.2018
Zitationen: 34
Web of Science
Zitationen: 34
Zugehörige Institution(en) am KIT Fakultät für Physik (PHYSIK)
Institut für Meteorologie und Klimaforschung (IMK)
Institut für Meteorologie und Klimaforschung - Atmosphärische Spurenstoffe und Fernerkundung (IMK-ASF)
Publikationstyp Zeitschriftenaufsatz
Jahr 2009
Sprache Englisch
Identifikator ISSN: 1867-1381, 1867-8548
KITopen-ID: 1000041684
HGF-Programm 12.04.02 (POF II, LK 01)
Erschienen in Atmospheric measurement techniques
Band 2
Heft 1
Seiten 47-54
Externe Relationen Abstract/Volltext
Nachgewiesen in Scopus
Web of Science
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