Figure 2. (a-c) Comparison between wind speeds measured by buoys and those estimated by wave spectra. (a) Scatter plot of 110 collocated DNN-estimated wind speed and direct-measured wind speed. (b) The same as (a), but the spectra were used to estimate the wind speed one hour ago. (c) The bias, STD, and RMSE of the DNN-estimated wind speed one hour ago as a function of directmeasured wind speed. The blue shadow indicates the empirical distribution function of direct-measured wind speed. (d-f) The same as (a-c), but for wind directions.
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