Using 25 years of ERA5 reanalysis data, this study shows that wind divergence is partially driven by small-scale sea surface temperature (SST) patterns via their effect on the boundary layer stability. Moreover, strong warm-to-cold fronts (the upper quartile) are associated with a mean increase of cloud cover of 10% ± 5% and a mean increase in the probability of a rain event of 15% ± 6%, with respect to the average values. The cloud and rainfall dependence on SST fronts is more pronounced in Fall, probably due to the stronger SST gradients present at the end of the summer season.

Desbiolles, F., Alberti, M., Hamouda, M., Meroni, A., Pasquero, C. (2021). Links Between Sea Surface Temperature Structures, Clouds and Rainfall: Study Case of the Mediterranean Sea. GEOPHYSICAL RESEARCH LETTERS, 48(10) [10.1029/2020GL091839].

Links Between Sea Surface Temperature Structures, Clouds and Rainfall: Study Case of the Mediterranean Sea

Desbiolles F.
Primo
;
Hamouda M. E.;Meroni A. N.;Pasquero C.
Ultimo
2021

Abstract

Using 25 years of ERA5 reanalysis data, this study shows that wind divergence is partially driven by small-scale sea surface temperature (SST) patterns via their effect on the boundary layer stability. Moreover, strong warm-to-cold fronts (the upper quartile) are associated with a mean increase of cloud cover of 10% ± 5% and a mean increase in the probability of a rain event of 15% ± 6%, with respect to the average values. The cloud and rainfall dependence on SST fronts is more pronounced in Fall, probably due to the stronger SST gradients present at the end of the summer season.
Articolo in rivista - Articolo scientifico
cloud; rainfall; SST gradient; thermal feedback; wind divergence in the MABL;
English
26-apr-2021
2021
48
10
e2020GL091839
open
Desbiolles, F., Alberti, M., Hamouda, M., Meroni, A., Pasquero, C. (2021). Links Between Sea Surface Temperature Structures, Clouds and Rainfall: Study Case of the Mediterranean Sea. GEOPHYSICAL RESEARCH LETTERS, 48(10) [10.1029/2020GL091839].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/322638
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