PBL Vertical Structure During Extreme Wind Events at Seaside Region of Southern Bulgaria
PBL Vertical Structure During Extreme Wind Events at Seaside Region of Southern Bulgaria

Author(s): Damyan Barantiev, Ekaterina Batchvarova, Hristina Kirova, Orlin Gueorguiev
Subject(s): Economy, National Economy, Supranational / Global Economy, Business Economy / Management, Energy and Environmental Studies
Published by: Национално издателство за образование и наука „Аз-буки“
Keywords: extreme wind events; coastal boundary layer; wind and turbulent profiles; remote sensing; sodar
Summary/Abstract: round-based remote sensing (GBRS) data collection with Scintec Sodar MFAS was performed in southern Bulgarian Black Sea side from August 2008 until October 2016. These high spatial (10 m) and temporal (10 minutes with averaging time of 20 minutes) resolution measurements of wind and turbulent parameters have been used to explore the vertical structure of the coastal boundary layer during extreme wind events. For this purpose, the ninety-percentile of the two-parameter Weibull distribution of the wind speed at every sodar measurement level from 30 up to 600 m is used as a criterion to define the “rare” values within their statistical distributions and to identify a theoretical extreme wind speed profile (reference profile). On this basis, the extreme profiles during the reviewed period have been determined and their multiple time series have been then used to derive averaged profiles of twelve sodar output parameters under extreme winds conditions.

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