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Convective boundary layer evolution to 4 km asl over high-alpine terrain: airborne lidar observations in the Alps.

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Title: Convective boundary layer evolution to 4 km asl over high-alpine terrain: airborne lidar observations in the Alps.
Author: Colbeck, I.; Kalberer, M.; Nyeki, S.; Steyn, Douw G.; Lugauer, M.; Furger, M.; De Wekker, Stephan F. J.; Kossmann, M.; Gaggeler, H. W.; Baltensperger, U.; Wirth, M.; Weingartner, E.
Issue Date: 2000-03
Publicly Available in cIRcle 2011-04-19
Publisher American Geophysical Union
Citation: Nyeki, S., Kalberer, M., Colbeck, I., De Wekker, S., Furger, M., Gäggeler, H.W., Kossmann, M., Lugauer, M., Steyn, Douw G., Weingartner, E., Wirth, M., Baltensperger, U. 2000. Convective boundary layer evolution to 4 km asl over high-alpine terrain: airborne lidar observations in the Alps Geophysical Research Letters 27(5) 689-692. http://www.agu.org/journals/gl/v027/i005/1999GL010928/
Abstract: Mountain ranges have important influences on the structure and composition of the convective boundary layer (CBL) and free troposphere (FT). Evolution of the summer CBL, measured over the European Alps using airborne lidar, was clearly observed to attain a near‐uniform height up to 4.2 km asl by early afternoon. A climatology of in‐situ high‐alpine aerosol measurements suggests that such substantial growth, corresponding to ∼ 0.3 of the mid‐latitude tropopause height, often occurs during summer months. Subsequent nocturnal collapse of the CBL was estimated to result in the venting of ∼ 0.8 ± 0.3 (SO44) Gg day−1 into a FT residual layer, leeward of the Alps. An edited version of this paper was published by AGU. Copyright 2000 American Geophysical Union.
Affiliation: Earth and Ocean Sciences, Dept. of (EOS), Dept of
URI: http://hdl.handle.net/2429/33795
Peer Review Status: Reviewed
Scholarly Level: Faculty

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