Experiment on wind remote sensing using GPS-R from aircraft platform

Remote sensing using GPS reflected signals is a new way to sound sea surface winds.The airborne experiment performed in Hainai in 2009 was introduced.To investigate the theory and the inversion method,the experimental measurements were used in the retrieval of the wind speed and the direction on the open sea surface.Then the results were compared with QuickSCAT.The difference of wind speed and the direction were 1.8 m/s and 29° respectively.To compare with the measurement in situ from Boao station,the accuracy of wind speed and the wind direction were 1.4 m/s and 24°.With the statistics,the reliability of the GPS-R theory and the inversion method were confirmed.Results prove that the principle of wind remote sensing using GPS-R is accurate feasible and the retrieving is of high accuracy.