Abstract
Lee, J. and Kim, T., 2019. Comparison study of HY-2A, WindSat, ASCAT satellite wind data with in-situ measurement data. In: Lee, J.L.; Yoon, J.-S.; Cho, W.C.; Muin, M., and Lee, J. (eds.), The 3rd International Water Safety Symposium. Journal of Coastal Research, Special Issue No. 91, pp. 341-345. Coconut Creek (Florida), ISSN 0749-0208.This paper compares HY-2A, WindSat, ASCAT satellite wind data collected over six years from 2012 to 2017 with observed wind data from Ieodo Ocean Research Station (IORS) and Buoy located in the south sea of Jeju Island(BSJI), and analyzes the accuracy and characteristics of satellite wind data. The three satellites can measure wind speed and direction by remotely sensing the ocean surface. Specially, HY-2A scatterometer data produced by Chinese satellite were recently open to research users. The error analysis shows that RMSE of the three satellites are between 1.3 and 2.2 m/s, and correlations are between 0.84 and 0.92, and accuracy is high in the order of ASCAT, WindSat and HY-2A. Accuracy analysis in different wind speed ranges is also performed to find the characteristics of each satellite wind data. The satellite wind data are to be used for verification and assimilation data for wind forecasting model which produces input data for wave prediction numerical model.
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