Interpolating satellite derived wind field data using ordinary Kriging, with application to the nadir gap

Dual swath satellite wind sensors are unable to obtain measurements directly below the satellite, creating a “nadir gap” centered on the subsatellite track. This is true of active sensors such as the scatterometer, as well as the microwave radiometers, newly used for this purpose. In addition, sensor coverage in equatorial regions is incomplete. Using processed ERS-1 wind field data, it is shown that ordinary Kriging is an appropriate technique to interpolate this “nadir gap”