![](/images/graphics-bg.png)
Numerical Simulations of Fog Events in Southern Portugal
Joint Authors
Policarpo, Carlos
Salgado, Rui
Costa, Maria João
Source
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-16, 16 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-01-05
Country of Publication
Egypt
No. of Pages
16
Main Subjects
Abstract EN
This work aims at improving the knowledge on fog formation and its evolution in the Alentejo region (Portugal).
For this purpose, brief regional fog climatology, essentially based on information from the Beja Air Base meteorological station, was produced and several numerical high resolution simulations were performed using the Meso-NH.
The ECOCLIMAP database used to generate the model physiography was improved to include the Alqueva reservoir (~250 km2), filled in 2003.
The model results were compared with surface and satellite observations, showing good agreement in terms of fog occurrence and persistence.
Various forcing mechanisms for formation, development, and dissipation of fog were identified, confirming the influence of two small mountains that block the moist air from the Atlantic Ocean, preventing the fog from reaching innermost regions.
The introduction of the Alqueva large reservoir induces changes in the landscape and environment.
The effects of the water vapour addition and of the changes in mass and energy surface fluxes on fog formation and evolution were studied.
It was found that the reservoir may have a direct impact on fog formation over the lake and its vicinity.
Depending on the large scale meteorological conditions, their influence can be both positive and negative, in terms of spatial coverage and temporal persistence.
American Psychological Association (APA)
Policarpo, Carlos& Salgado, Rui& Costa, Maria João. 2017. Numerical Simulations of Fog Events in Southern Portugal. Advances in Meteorology،Vol. 2017, no. 2017, pp.1-16.
https://search.emarefa.net/detail/BIM-1122501
Modern Language Association (MLA)
Policarpo, Carlos…[et al.]. Numerical Simulations of Fog Events in Southern Portugal. Advances in Meteorology No. 2017 (2017), pp.1-16.
https://search.emarefa.net/detail/BIM-1122501
American Medical Association (AMA)
Policarpo, Carlos& Salgado, Rui& Costa, Maria João. Numerical Simulations of Fog Events in Southern Portugal. Advances in Meteorology. 2017. Vol. 2017, no. 2017, pp.1-16.
https://search.emarefa.net/detail/BIM-1122501
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1122501