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Evening transitions of the atmospheric boundary layer: characterization, case studies and WRF simulations
Title: Evening transitions of the atmospheric boundary layer: characterization, case studies and WRF simulations
Authors: Sastre, MarianoYagüe, Carlos ORCID Román Cascón, CarlosMaqueda Burgos, GregorioSalamanca Palou, FranciscoViana Jiménez, Samuel ORCID RESEARCHERID SCOPUSID Autor AEMET
Keywords: Atmospheric stability; Turbulence parameters; Nocturnal Boundary Layer; Mesoscale models
Issue Date: 2012
Publisher: Copernicus
Citation: Advances in Science and Research. 2012, 8(1), p. 39-44
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Abstract: Micrometeorological observations from two months (July–August 2009) at the CIBA site (Northern Spanish plateau) have been used to evaluate the evolution of atmospheric stability and turbulence parameters along the evening transition to a Nocturnal Boundary Layer. Turbulent Kinetic Energy thresholds have been established to distinguish between diverse case studies. Three different types of transitions are found, whose distinctive characteristics are shown. Simulations with the Weather Research and Forecasting-Advanced Research WRF (WRF-ARW) mesoscale model of selected transitions, using three different PBL parameterizations, have been carried out for comparison with observed data. Depending on the atmospheric conditions, different PBL schemes appear to be advantageous over others in forecasting the transitions.
Sponsorship : This research has been funded by the Spanish Ministry of Science and Innovation (projects CGL 2006-12474-C03-03 and CGL2009-12797-C03-03). The GR58/08 program (supported by BSCH and UCM) has also partially financed this work through the Research Group “Micrometeorology and Climate Variability” (No 910437). M. Sastre is supported by a FPI-UCM fellowship (reference BE45/10).
ISSN: 1992-0628
Appears in Collections:Artículos científicos 2010-2014

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