Low-level mixing height detection in coastal locations with a scanning Doppler lidar

Το τεκμήριο παρέχεται από τον φορέα :
Τεχνολογικό Πανεπιστήμιο Κύπρου   

Αποθετήριο :
Κτίσις   

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Low-level mixing height detection in coastal locations with a scanning Doppler lidar

Mamouri, R. E.
O'Connor, E. J.
Vakkari, V.
Nisantzi, Argyro

article

2016-07-05T10:18:11Z
2015-04-23


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.

Engineering and Technology
Environmental Engineering

Engineering and Technology
Tropospheric dynamics
Scanning Doppler lidar
Environmental Engineering
Coastal locations
Mixing layer height (MLH)

Atmospheric Measurement Techniques

Αγγλική γλώσσα

Atmospheric Measurement Techniques, 2015, vol. 8, no.4, pp. 1875-1885

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© Author(s). This work is distributed under the Creative Commons Attribution 3.0 License.




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