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National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Measurement of the vertical profile of the ground level of the atmosphere using an unmanned platform First results
 Novotný, J. ; Bystrický, R. ; Dejinal, K. ; Trusina, Jan ; Komínková, Kateřina
Application of new technologies such as unmanned platforms is also on the rise in meteorology. The paper brings the first comparison of measurement sensors placed on the drone with standard meteorological measure-ments on the mast. The mast data provides continuous data over time, but not in space and only in five defined heights. The first results show a good match between mast measurements and measurements using a flying dron in wind direction and wind speed. Additional influences specific to the newly designed measurement method is the main problem, which must be solved.
Detailed record
Creation of wind rosettes using the CALMET model
 Škáchová, H. ; Vlček, O. ; Trusina, Jan
The CALMETT model is a part of dispersion modeling system (CALPUFF), which is a diagnostical modul for flow fields that counts vertically divided fields of wind direction and wind speed. The model is able to calculate micrometeorological characteristics of the boundary layer above the Earth´s and water surface. To verify the model, test calculations were made at two professional stations CHMI (Praha – Libuš, Mošnov) for the period of 2008 – 2012. Košetice Observatory was chosen for comparison of the stability divided and total height rosettes. The results showed that the CALMETT model is a suitable tool for creating stability divided wind rosettes. When calculating wind rosettes, the correct settings and representativeness of input data should be born in mind.
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