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.

Data sets

TES data
NASA
https://tes.jpl.nasa.gov/data/
MERRA data
GES DISC
https://disc.gsfc.nasa.gov/
ECMWF re-analysis
ECMWF
http://apps.ecmwf.int/datasets/
Publications Copernicus
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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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