Gutleben, Manuel and Groß, Silke and Wirth, Martin and Emde, Claudia and Mayer, Bernhard (2019) Impacts of water vapor on Saharan air layer radiative heating. Geophysical Research Letters, 46 (24), pp. 14854-14862. Wiley. DOI: 10.1029/2019GL085344 ISSN 0094-8276
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Official URL: https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2019GL085344
Abstract
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.
Item URL in elib: | https://elib.dlr.de/134038/ | ||||||||||||||||||
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Document Type: | Article | ||||||||||||||||||
Title: | Impacts of water vapor on Saharan air layer radiative heating | ||||||||||||||||||
Authors: |
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Date: | 23 December 2019 | ||||||||||||||||||
Journal or Publication Title: | Geophysical Research Letters | ||||||||||||||||||
Refereed publication: | Yes | ||||||||||||||||||
Open Access: | Yes | ||||||||||||||||||
Gold Open Access: | No | ||||||||||||||||||
In SCOPUS: | Yes | ||||||||||||||||||
In ISI Web of Science: | Yes | ||||||||||||||||||
Volume: | 46 | ||||||||||||||||||
DOI : | 10.1029/2019GL085344 | ||||||||||||||||||
Page Range: | pp. 14854-14862 | ||||||||||||||||||
Publisher: | Wiley | ||||||||||||||||||
ISSN: | 0094-8276 | ||||||||||||||||||
Status: | Published | ||||||||||||||||||
Keywords: | Saharan dust, Remote sensing, Lidar | ||||||||||||||||||
HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||||||||
HGF - Program: | Space | ||||||||||||||||||
HGF - Program Themes: | Earth Observation | ||||||||||||||||||
DLR - Research area: | Raumfahrt | ||||||||||||||||||
DLR - Program: | R EO - Erdbeobachtung | ||||||||||||||||||
DLR - Research theme (Project): | R - Vorhaben LIDAR-Forschung und -Entwicklung | ||||||||||||||||||
Location: | Oberpfaffenhofen | ||||||||||||||||||
Institutes and Institutions: | Institute of Atmospheric Physics | ||||||||||||||||||
Deposited By: | Gutleben, Manuel | ||||||||||||||||||
Deposited On: | 11 Feb 2020 12:11 | ||||||||||||||||||
Last Modified: | 24 Jun 2020 03:00 |
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