Quality Control and Forecast Verification of Wind Field in Coastal Waters of Shanghai
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Abstract:
Based on the wind field data of 19 stations in Shanghai coastal waters in 2016, the wind field quality control methods are studied, including the integrity check, internal consistency check, continuity check, and height correction. Meanwhile, 10 stations are selected as observation stations of the wind field forecast verification in 2016, including wind speed error, wind speed accuracy and wind direction verification, and compared the results before and after the quality control of the wind field observation data. Finally, two strong wind processes are verified. The main results are as follow: the forecast verification results become worse with the increase of forecast time; the overall error of wind speed forecast in autumn and winter is small, and that in June and July is larger; the accuracy rate of the 0-5 level wind speed verification is between 0.9 and 1, and the forecast value is larger than observation; the accuracy rate of wind speed forecast above level 6 is gradually reduced, and the forecast value is smaller than that of observation. The wind direction verification shows obvious seasonality; in December and January, the error is small and the accuracy rate is the highest; in June, the error is the largest and the accuracy rate is the lowest. After quality control, the verification results are improved positively; the accuracy rates of the two strong wind processes are all above 70%.
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Supported by:Beijing E-Tiller Technology Development Co., Ltd.
Supported by:Beijing E-Tiller Technology Development Co., Ltd.