Circulatory Patterns of Air Pollutants within the Barcelona Air Basin in a Summertime situation: Lidar and Numerical Approaches |
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| Authors: | Cecilia Soriano José M Baldasano William T Buttler Kurt R Moore |
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| Institution: | (1) Laboratory of Environmental Modeling DPE-ETSEIB, Universitat Politécnica de Catalunya (UPC), Av. Diagonal 647,10.24, 08028 Barcelona, Spain;(2) Physics Division (P-22), Los Alamos National Laboratory (LANL), MS H803, Los Alamos, NM 87545, USA;(3) Non-Proliferation and International Securities-1 (NIS-1), Los Alamos National Laboratory (LANL), MS D466, Los Alamos, NM 87545, USA |
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| Abstract: | This work examines circulatory patterns of airpollutants in the area of Barcelona (Spain), a regionwith strong coastal and orographic influences. Thiswas achieved through exploitation ofelastic-backscatter lidar data and by numericalsimulation of the atmosphere with a meteorologicalmesoscale model (MEMO). Lidar data were acquired inJuly 1992 during a collaborative campaign between LosAlamos National Laboratory (LANL) and the PolytechnicUniversity of Catalonia (UPC). The lidar providedinformation about the distribution of aerosols and theprevailing winds, determined by application of amaximum cross-correlation algorithm toelastic-backscatter lidar data. Lidar winds are usedto evaluate high altitude winds simulated by themodel. This study showed that circulatory patterns inBarcelona are correlated with daytime convectivevertical mixing, sea-breeze circulations, and verticalforcing caused by mountain thermal and mechanicaleffects. |
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| Keywords: | Elastic-backscatter lidar Lidar Mesoscale meteorology Numerical modeling |
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