Journal cover Journal topic
Atmospheric Chemistry and Physics An interactive open-access journal of the European Geosciences Union
Atmos. Chem. Phys., 17, 9645-9663, 2017
https://doi.org/10.5194/acp-17-9645-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
Research article
10 Aug 2017
Importance of the Saharan heat low in controlling the North Atlantic free tropospheric humidity budget deduced from IASI δD observations
Jean-Lionel Lacour et al.
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Interactive discussionStatus: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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RC1: 'Review', Anonymous Referee #2, 30 Mar 2017 Printer-friendly Version Supplement 
AC1: 'Responses to reviewer #2', Jean-Lionel Lacour, 09 Jul 2017 Printer-friendly Version Supplement 
 
RC2: 'Review of 'Importance of the Saharan Heat Low on the control of the North Atlantic free tropospheric humidity deduced from IASI dD observations' by Lacour et al.', Anonymous Referee #1, 12 Apr 2017 Printer-friendly Version 
AC2: 'Responses to reviewer #1', Jean-Lionel Lacour, 09 Jul 2017 Printer-friendly Version Supplement 
 
SC1: 'Comment on Lacour et al. (2017) and its relation to previous works', Matthias Schneider, 13 Apr 2017 Printer-friendly Version Supplement 
AC3: 'Responses to Matthias Schneider', Jean-Lionel Lacour, 09 Jul 2017 Printer-friendly Version Supplement 
Peer review completion
AR: Author's response | RR: Referee report | ED: Editor decision
AR by Jean-Lionel Lacour on behalf of the Authors (09 Jul 2017)  Author's response  Manuscript
ED: Publish subject to technical corrections (10 Jul 2017) by Heini Wernli  
AR by Jean-Lionel Lacour on behalf of the Authors (10 Jul 2017)  Author's response  Manuscript
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Short summary
We present temporal and spatial δD distributions derived from IASI obtained above the North Atlantic in the vicinity of West Africa. We show that the seasonality of δD in the North Atlantic is closely associated with the influence of the Saharan heat low (SHL). We provide an interpretation of the temporal and spatial variations in δD and show that the interactions between the large-scale subsidence, the ITCZ, and the SHL can be disentangled thanks to the added information contained in δD.
We present temporal and spatial δD distributions derived from IASI obtained above the North...
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