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Mesoscale Circulations Over Complex Terrain in the Valencia Coastal Region, Spain – Part 1: Simulation of Diurnal Circulation Regimes : Volume 7, Issue 7 (16/04/2007)

By Pérez-landa, G.

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Book Id: WPLBN0003994755
Format Type: PDF Article :
File Size: Pages 15
Reproduction Date: 2015

Title: Mesoscale Circulations Over Complex Terrain in the Valencia Coastal Region, Spain – Part 1: Simulation of Diurnal Circulation Regimes : Volume 7, Issue 7 (16/04/2007)  
Author: Pérez-landa, G.
Volume: Vol. 7, Issue 7
Language: English
Subject: Science, Atmospheric, Chemistry
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Publication Date:
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications


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Gioli, B., Gangoiti, G., Miglietta, F., Sanz, M. J., Pérez-Landa, G., Ciais, P.,...Millán, M. M. (2007). Mesoscale Circulations Over Complex Terrain in the Valencia Coastal Region, Spain – Part 1: Simulation of Diurnal Circulation Regimes : Volume 7, Issue 7 (16/04/2007). Retrieved from

Description: Fundación CEAM. Parque Tecnológico, c/o Charles R. Darwin 14, 46980 Paterna (Valencia), Spain. We collected ground-based and aircraft vertical profile measurements of meteorological parameters during a 2-week intensive campaign over the Valencia basin, in order to understand how mesoscale circulations develop over complex terrain and affect the atmospheric transport of tracers. A high-resolution version of the RAMS model was run to simulate the campaign and characterize the diurnal patterns of the flow regime: night-time katabatic drainage, morning sea-breeze development and its subsequent coupling with mountain up-slopes, and evening flow-veering under larger-scale interactions. An application of this mesoscale model to the transport of CO2 is given in a companion paper. A careful evaluation of the model performances against diverse meteorological observations is carried out. Despite the complexity of the processes interacting with each other, and the uncertainties on modeled soil moisture boundary conditions and turbulence parameterizations, we show that it is possible to simulate faithfully the contrasted flow regimes during the course of one day, especially the inland progression and organization of the sea breeze. This gives confidence with respect to future applicability of mesoscale models to establish a reliable link between surface sources of tracers and their atmospheric concentration signals over complex terrain.

Mesoscale circulations over complex terrain in the Valencia coastal region, Spain – Part 1: Simulation of diurnal circulation regimes

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