Evaluation of a LBand Wind Speed Calculation Algorithm Based on ERAInterim
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Abstract:
Based on the high verticalresolution position data of Lband and radiosondes, three schemes for calculating secondlevel wind speed are designed by selecting different time windows at different sounding heights. The calculated secondlevel wind speed and ERAInterim reanalysis data are compared on different indexes: the amount of data, the average deviation (Bias), and the root mean square error (RMSE), which indicate the optimal algorithm to calculate the second wind speed. The results show that the appropriate length of time window is necessary to accurately calculate the second wind speed. Given the radar positioning system deviation, the second wind speed error will be larger if the time window is chosen too large or too small. Based on the ERAInterim reanalysis data with good spatial and temporal consistency, this paper presents a new scheme to evaluate the Lband secondlevel wind speed calculation.
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Supported by:Beijing E-Tiller Technology Development Co., Ltd.
Supported by:Beijing E-Tiller Technology Development Co., Ltd.