Water vapor isotopologue retrievals from high-resolution GOSAT shortwave infrared spectra
International audience Remote sensing of the isotopic composition of water vapor can provide valuable information on the hydrological cycle. Here, we demonstrate the feasibility of retrievals of the relative abundance of HDO (the HDO/H2O ratio) from the Japanese GOSAT satellite. For this purpose, we...
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ftsorbonneuniv:oai:HAL:hal-01108535v1 2024-09-15T17:44:41+00:00 Water vapor isotopologue retrievals from high-resolution GOSAT shortwave infrared spectra Frankenberg, C. Wunch, D. Toon, G. Risi, Camille Scheepmaker, R. Lee, J. -E. Wennberg, P. Worden, J. Jet Propulsion Laboratory (JPL) NASA-California Institute of Technology (CALTECH) California Institute of Technology (CALTECH) Laboratoire de Météorologie Dynamique (UMR 8539) (LMD) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X) Institut Polytechnique de Paris (IP Paris)-Institut Polytechnique de Paris (IP Paris)-École des Ponts ParisTech (ENPC)-Centre National de la Recherche Scientifique (CNRS)-Département des Géosciences - ENS Paris École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL) SRON Netherlands Institute for Space Research (SRON) 2013 https://hal.science/hal-01108535 https://hal.science/hal-01108535/document https://hal.science/hal-01108535/file/amt-6-263-2013.pdf https://doi.org/10.5194/amt-6-263-2013 en eng HAL CCSD European Geosciences Union info:eu-repo/semantics/altIdentifier/doi/10.5194/amt-6-263-2013 hal-01108535 https://hal.science/hal-01108535 https://hal.science/hal-01108535/document https://hal.science/hal-01108535/file/amt-6-263-2013.pdf doi:10.5194/amt-6-263-2013 info:eu-repo/semantics/OpenAccess ISSN: 1867-1381 EISSN: 1867-8548 Atmospheric Measurement Techniques https://hal.science/hal-01108535 Atmospheric Measurement Techniques, 2013, 6 (2), pp.263-274. ⟨10.5194/amt-6-263-2013⟩ [SDU.STU.ME]Sciences of the Universe [physics]/Earth Sciences/Meteorology info:eu-repo/semantics/article Journal articles 2013 ftsorbonneuniv https://doi.org/10.5194/amt-6-263-2013 2024-08-01T23:46:54Z International audience Remote sensing of the isotopic composition of water vapor can provide valuable information on the hydrological cycle. Here, we demonstrate the feasibility of retrievals of the relative abundance of HDO (the HDO/H2O ratio) from the Japanese GOSAT satellite. For this purpose, we use high spectral resolution nadir radiances around 6400 cm(-1) (1.56 mu m) to retrieve vertical column amounts of H2O and HDO. Retrievals of H2O correlate well with ECMWF (European Centre for Medium-Range Weather Forecasts) integrated profiles (r(2) = 0.96). Typical precision errors in the retrieved column-averaged deuterium depletion (delta D) are 20-40%. We compare delta D against a TCCON (Total Carbon Column Observing Network) ground-based station in Lamont, Oklahoma. Using retrievals in very dry areas over Antarctica, we detect a small systematic offset in retrieved H2O and HDO column amounts and take this into account for a bias correction of delta D. Monthly averages of delta D in the June 2009 to September 2011 time frame are well correlated with TCCON (r2 = 0.79) and exhibit a slope of 0.98 (1.23 if not bias corrected). We also compare seasonal averages on the global scale with results from the SCIAMACHY instrument in the 2003-2005 time frame. Despite the lack of temporal overlap, seasonal averages in general agree well, with spatial correlations (r2) ranging from 0.62 in September through November to 0.83 in June through August. However, we observe higher variability in GOSAT delta D, indicated by fitted slopes between 1.2 and 1.46. The discrepancies are likely related to differences in vertical sensitivities but warrant further validation of both GOSAT and SCIAMACHY and an extension of the validation dataset. Article in Journal/Newspaper Antarc* Antarctica HAL Sorbonne Université Atmospheric Measurement Techniques 6 2 263 274 |
institution |
Open Polar |
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HAL Sorbonne Université |
op_collection_id |
ftsorbonneuniv |
language |
English |
topic |
[SDU.STU.ME]Sciences of the Universe [physics]/Earth Sciences/Meteorology |
spellingShingle |
[SDU.STU.ME]Sciences of the Universe [physics]/Earth Sciences/Meteorology Frankenberg, C. Wunch, D. Toon, G. Risi, Camille Scheepmaker, R. Lee, J. -E. Wennberg, P. Worden, J. Water vapor isotopologue retrievals from high-resolution GOSAT shortwave infrared spectra |
topic_facet |
[SDU.STU.ME]Sciences of the Universe [physics]/Earth Sciences/Meteorology |
description |
International audience Remote sensing of the isotopic composition of water vapor can provide valuable information on the hydrological cycle. Here, we demonstrate the feasibility of retrievals of the relative abundance of HDO (the HDO/H2O ratio) from the Japanese GOSAT satellite. For this purpose, we use high spectral resolution nadir radiances around 6400 cm(-1) (1.56 mu m) to retrieve vertical column amounts of H2O and HDO. Retrievals of H2O correlate well with ECMWF (European Centre for Medium-Range Weather Forecasts) integrated profiles (r(2) = 0.96). Typical precision errors in the retrieved column-averaged deuterium depletion (delta D) are 20-40%. We compare delta D against a TCCON (Total Carbon Column Observing Network) ground-based station in Lamont, Oklahoma. Using retrievals in very dry areas over Antarctica, we detect a small systematic offset in retrieved H2O and HDO column amounts and take this into account for a bias correction of delta D. Monthly averages of delta D in the June 2009 to September 2011 time frame are well correlated with TCCON (r2 = 0.79) and exhibit a slope of 0.98 (1.23 if not bias corrected). We also compare seasonal averages on the global scale with results from the SCIAMACHY instrument in the 2003-2005 time frame. Despite the lack of temporal overlap, seasonal averages in general agree well, with spatial correlations (r2) ranging from 0.62 in September through November to 0.83 in June through August. However, we observe higher variability in GOSAT delta D, indicated by fitted slopes between 1.2 and 1.46. The discrepancies are likely related to differences in vertical sensitivities but warrant further validation of both GOSAT and SCIAMACHY and an extension of the validation dataset. |
author2 |
Jet Propulsion Laboratory (JPL) NASA-California Institute of Technology (CALTECH) California Institute of Technology (CALTECH) Laboratoire de Météorologie Dynamique (UMR 8539) (LMD) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X) Institut Polytechnique de Paris (IP Paris)-Institut Polytechnique de Paris (IP Paris)-École des Ponts ParisTech (ENPC)-Centre National de la Recherche Scientifique (CNRS)-Département des Géosciences - ENS Paris École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL) SRON Netherlands Institute for Space Research (SRON) |
format |
Article in Journal/Newspaper |
author |
Frankenberg, C. Wunch, D. Toon, G. Risi, Camille Scheepmaker, R. Lee, J. -E. Wennberg, P. Worden, J. |
author_facet |
Frankenberg, C. Wunch, D. Toon, G. Risi, Camille Scheepmaker, R. Lee, J. -E. Wennberg, P. Worden, J. |
author_sort |
Frankenberg, C. |
title |
Water vapor isotopologue retrievals from high-resolution GOSAT shortwave infrared spectra |
title_short |
Water vapor isotopologue retrievals from high-resolution GOSAT shortwave infrared spectra |
title_full |
Water vapor isotopologue retrievals from high-resolution GOSAT shortwave infrared spectra |
title_fullStr |
Water vapor isotopologue retrievals from high-resolution GOSAT shortwave infrared spectra |
title_full_unstemmed |
Water vapor isotopologue retrievals from high-resolution GOSAT shortwave infrared spectra |
title_sort |
water vapor isotopologue retrievals from high-resolution gosat shortwave infrared spectra |
publisher |
HAL CCSD |
publishDate |
2013 |
url |
https://hal.science/hal-01108535 https://hal.science/hal-01108535/document https://hal.science/hal-01108535/file/amt-6-263-2013.pdf https://doi.org/10.5194/amt-6-263-2013 |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
ISSN: 1867-1381 EISSN: 1867-8548 Atmospheric Measurement Techniques https://hal.science/hal-01108535 Atmospheric Measurement Techniques, 2013, 6 (2), pp.263-274. ⟨10.5194/amt-6-263-2013⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/amt-6-263-2013 hal-01108535 https://hal.science/hal-01108535 https://hal.science/hal-01108535/document https://hal.science/hal-01108535/file/amt-6-263-2013.pdf doi:10.5194/amt-6-263-2013 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.5194/amt-6-263-2013 |
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Atmospheric Measurement Techniques |
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6 |
container_issue |
2 |
container_start_page |
263 |
op_container_end_page |
274 |
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1810492339211206656 |