Please use this identifier to cite or link to this item: http://ktisis.cut.ac.cy/handle/10488/8599
Title: Low-level mixing height detection in coastal locations with a scanning Doppler lidar
Authors: Vakkari, V. 
O'Connor, E. J. 
Nisantzi, Argyro 
Mamouri, R. E. 
Keywords: Coastal locations;Scanning Doppler lidar;Tropospheric dynamics;Mixing layer height (MLH)
Category: Environmental Engineering
Field: Engineering and Technology
Issue Date: Apr-2015
Publisher: Copernicus Publications
Source: Atmospheric Measurement Techniques, Volume 8, Issue 4, pages 1875-1885
Link: http://www.atmospheric-measurement-techniques.net/index.html
Abstract: Mixing layer height (MLH) is one of the key parameters in describing lower tropospheric dynamics and capturing its diurnal variability is crucial, especially for interpreting surface observations. In this paper we introduce a method for identifying MLH below the minimum range of a scanning Doppler lidar when operated at vertical. The method we propose is based on velocity variance in low-elevation-angle conical scanning and is applied to measurements in two very different coastal environments: Limassol, Cyprus, during summer and Loviisa, Finland, during winter. At both locations, the new method agrees well with MLH derived from turbulent kinetic energy dissipation rate profiles obtained from vertically pointing measurements. The low-level scanning routine frequently indicated non-zero MLH less than 100 m above the surface. Such low MLHs were more common in wintertime Loviisa on the Baltic Sea coast than during summertime in Mediterranean Limassol.
URI: http://ktisis.cut.ac.cy/handle/10488/8599
ISSN: 1867-1381
1867-8548 (Online)
DOI: 10.5194/amt-8-1875-2015
Rights: © Author(s). This work is distributed under the Creative Commons Attribution 3.0 License.
Type: Article
Appears in Collections:Άρθρα/Articles

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