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Knerr, I.; Trachte, K.; Egli, S.; Barth, J.; Br&auml;uning, A.; Garel, E.; H&auml;usser, M.; Huneau, F.; Juhlke, T.; Santoni, S.; Szymczak, S.; van Geldern, R. &amp; Bendix, J. (2021): <b>Fog - low stratus (FLS) regimes on Corsica with wind and PBLH as key drivers</b>. <i>Atmospheric Research</i> <b>261</b>, 105731.

Resource Description

Title: Fog - low stratus (FLS) regimes on Corsica with wind and PBLH as key drivers
FOR816dw ID: 432
Publication Date: 2021-06-15
License and Usage Rights:
Resource Owner(s):
Individual: Isabel Knerr
Contact:
Individual: Katja Trachte
Contact:
Individual: Sebastian Egli
Contact:
Individual: Johannes Barth
Contact:
Individual: Achim Bräuning
Contact:
Individual: Emilie Garel
Contact:
Individual: Martin Häusser
Contact:
Individual: Frédéric Huneau
Contact:
Individual: Tobias Juhlke
Contact:
Individual: Sébastien Santoni
Contact:
Individual: Sonja Szymczak
Contact:
Individual: Robert van Geldern
Contact:
Individual: Joerg Bendix
Contact:
Abstract:
The French Mediterranean island of Corsica is already today confronted with a clear tendency towards water shortage, leading not only to socio-economical, but also to ecological problems. A potential, but not very widespread source of water is the presence of near-ground clouds, mostly fog. In this study, we investigate fog-low stratus (FLS) frequencies in Corsica, derived from a data set of Meteosat Second Generation SEVIRI, whereby a distinction between fog and low stratus is hardly feasible using remote sensing data. The FLS frequency was studied with respect to its interaction with distinct locally-generated wind and its dependence on the planetary boundary layer height (PBLH) obtained by ERA5 reanalysis (the fifth generation of the European Centre for Medium-Range Weather Forecasts, ECMWF). Results show that radiation FLS is formed in coastal areas at sunrise, with low PBLH. On the other hand, in the interior of the island at sunset, a maximum of advection FLS is formed, fostered by locally-generated and related transport of moisture. On the east side of the island, FLS frequency is lower throughout the year due to frequent lee situations. This situation is reinforced by reduced synoptic moisture transport by westerly winds, so that westerly exposed slopes benefit from moisture input by FLS formation.
Keywords:
| Corsica | Mediterranean | Fog Low Stratus | Meteosat Second Generation (MSG) | Planetary Boundary Layer | Locally-generated wind |
Literature type specific fields:
ARTICLE
Journal: Atmospheric Research
Volume: 261
Page Range: 105731
Publisher: Elsevier
Metadata Provider:
Individual: Sebastian Egli
Contact:
Online Distribution:
Download File: http://www.lcrs.de/publications.do?citid=432


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