Characteristics of Hourly Wind Field over Olympic RowingCanoeing Park in Beijing Olympic Games
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Abstract:
Using the wind data at onehour interval of 12 CAWS600 sets and the data of BJANC and AWS, the occurrence frequencies of various level winds over the Olympic RowingCanoeing Park in August 2007 are statistically analyzed. Meanwhile, the features of wind speeds and directions are also analyzed. The results show that from 08:00 to 18:00 (Beijing Time), the frequency of wind speed being 0 to 2 m/s accounts for 82% with the maximum at 08:00, and that being 3 to 5 m/s accounts for 41% at 09:00, then 6 to 8 m/s accounts for only 14% at 15:00, that of more than 9 m/s is very small, which are related to strong convective weather. The analysis shows that the weak and narrow echo bands in BJANC reflectivity products can be used to predict wind direction variation. When a weak and narrow echo band moves through the Olympic RowingCanoeing Park, there will variation in wind speed and direction; when two weak and narrow echo bands run into each other, the storm will intensify, which is of significance to the meteorological support of Olympic rowing races.
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Supported by:Beijing E-Tiller Technology Development Co., Ltd.
Supported by:Beijing E-Tiller Technology Development Co., Ltd.