title: Simultaneous retrieval of atmospheric CO2 and light path modification from space-based spectroscopic observations of greenhouse gases: methodology and application to GOSAT measurements over TCCON sites.
abstract: This paper presents an improved photon path length probability density function method that permits simultaneous retrievals of column-average greenhouse gas mole fractions and light path modifications through the atmosphere when processing high-resolution radiance spectra acquired from space. We primarily describe the methodology and retrieval setup and then apply them to the processing of spectra measured by the Greenhouse gases Observing SATellite (GOSAT). We have demonstrated substantial improvements of the data processing with simultaneous carbon dioxide and light path retrievals and reasonable agreement of the satellite-based retrievals against ground-based Fourier transform spectrometer measurements provided by the Total Carbon Column Observing Network (TCCON).
authors: Center for Global Environmental Research, National Institute for Environmental Studies, Tsukuba, Ibaraki, Japan. sergey.oshchepkov@nies.go.jp
authors: Sergey
authors: S
authors: Oshchepkov
authors: Andrey
authors: A
authors: Bril
authors: Tatsuya
authors: T
authors: Yokota
authors: Yukio
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authors: Yoshida
authors: Thomas
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authors: Blumenstock
authors: Nicholas M
authors: NM
authors: Deutscher
authors: Susanne
authors: S
authors: Dohe
authors: Ronald
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authors: Macatangay
authors: Isamu
authors: I
authors: Morino
authors: Justus
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authors: Notholt
authors: Markus
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authors: Rettinger
authors: Christof
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authors: Petri
authors: Matthias
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authors: Schneider
authors: Ralf
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authors: Sussman
authors: Osamu
authors: O
authors: Uchino
authors: Voltaire
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authors: Velazco
authors: Debra
authors: D
authors: Wunch
authors: Dmitry
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authors: Belikov