Impacts of water vapor on Saharan air layer radiative heating
Abstract Airborne lidar observations of long-range transported Saharan air layers in the western North Atlantic trades indicate increased amounts of water vapor within the dust layers compared to the surrounding dry free atmosphere. This study investigates the impact of such enhanced water vapor con...
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ftdlr:oai:elib.dlr.de:134038 2023-12-03T10:26:52+01:00 Impacts of water vapor on Saharan air layer radiative heating Gutleben, Manuel Groß, Silke Wirth, Martin Emde, Claudia Mayer, Bernhard 2019-12-23 application/pdf https://elib.dlr.de/134038/ https://elib.dlr.de/134038/1/Gutleben_et_al-2019-Geophysical_Research_Letters.pdf https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2019GL085344 en eng Wiley https://elib.dlr.de/134038/1/Gutleben_et_al-2019-Geophysical_Research_Letters.pdf Gutleben, Manuel und Groß, Silke und Wirth, Martin und Emde, Claudia und Mayer, Bernhard (2019) Impacts of water vapor on Saharan air layer radiative heating. Geophysical Research Letters, 46 (24), Seiten 14854-14862. Wiley. doi:10.1029/2019GL085344 <https://doi.org/10.1029/2019GL085344>. ISSN 0094-8276. cc_by Institut für Physik der Atmosphäre Zeitschriftenbeitrag PeerReviewed 2019 ftdlr https://doi.org/10.1029/2019GL085344 2023-11-06T00:24:18Z Abstract Airborne lidar observations of long-range transported Saharan air layers in the western North Atlantic trades indicate increased amounts of water vapor within the dust layers compared to the surrounding dry free atmosphere. This study investigates the impact of such enhanced water vapor concentrations on radiative heating. Therefore, spatially high resolved airborne high spectral resolution and differential absorption lidar measurements are used for the parametrization of aerosol optical properties and water vapor concentrations in radiative transfer calculations. Heating rates that are calculated under consideration of the measured water vapor distribution strongly differ from heating rates that are derived under assumption of an atmospheric reference water vapor profile which is steadily decreasing with altitude. Results highlight that water vapor represents a major radiative driver for dust layer vertical mixing and the maintenance of bounding inversions at the top and bottom of the dust layer. Article in Journal/Newspaper North Atlantic German Aerospace Center: elib - DLR electronic library Geophysical Research Letters 46 24 14854 14862 |
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German Aerospace Center: elib - DLR electronic library |
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English |
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Institut für Physik der Atmosphäre |
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Institut für Physik der Atmosphäre Gutleben, Manuel Groß, Silke Wirth, Martin Emde, Claudia Mayer, Bernhard Impacts of water vapor on Saharan air layer radiative heating |
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Institut für Physik der Atmosphäre |
description |
Abstract Airborne lidar observations of long-range transported Saharan air layers in the western North Atlantic trades indicate increased amounts of water vapor within the dust layers compared to the surrounding dry free atmosphere. This study investigates the impact of such enhanced water vapor concentrations on radiative heating. Therefore, spatially high resolved airborne high spectral resolution and differential absorption lidar measurements are used for the parametrization of aerosol optical properties and water vapor concentrations in radiative transfer calculations. Heating rates that are calculated under consideration of the measured water vapor distribution strongly differ from heating rates that are derived under assumption of an atmospheric reference water vapor profile which is steadily decreasing with altitude. Results highlight that water vapor represents a major radiative driver for dust layer vertical mixing and the maintenance of bounding inversions at the top and bottom of the dust layer. |
format |
Article in Journal/Newspaper |
author |
Gutleben, Manuel Groß, Silke Wirth, Martin Emde, Claudia Mayer, Bernhard |
author_facet |
Gutleben, Manuel Groß, Silke Wirth, Martin Emde, Claudia Mayer, Bernhard |
author_sort |
Gutleben, Manuel |
title |
Impacts of water vapor on Saharan air layer radiative heating |
title_short |
Impacts of water vapor on Saharan air layer radiative heating |
title_full |
Impacts of water vapor on Saharan air layer radiative heating |
title_fullStr |
Impacts of water vapor on Saharan air layer radiative heating |
title_full_unstemmed |
Impacts of water vapor on Saharan air layer radiative heating |
title_sort |
impacts of water vapor on saharan air layer radiative heating |
publisher |
Wiley |
publishDate |
2019 |
url |
https://elib.dlr.de/134038/ https://elib.dlr.de/134038/1/Gutleben_et_al-2019-Geophysical_Research_Letters.pdf https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2019GL085344 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
https://elib.dlr.de/134038/1/Gutleben_et_al-2019-Geophysical_Research_Letters.pdf Gutleben, Manuel und Groß, Silke und Wirth, Martin und Emde, Claudia und Mayer, Bernhard (2019) Impacts of water vapor on Saharan air layer radiative heating. Geophysical Research Letters, 46 (24), Seiten 14854-14862. Wiley. doi:10.1029/2019GL085344 <https://doi.org/10.1029/2019GL085344>. ISSN 0094-8276. |
op_rights |
cc_by |
op_doi |
https://doi.org/10.1029/2019GL085344 |
container_title |
Geophysical Research Letters |
container_volume |
46 |
container_issue |
24 |
container_start_page |
14854 |
op_container_end_page |
14862 |
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1784276323944890368 |