GCOM-W/AMSR2 L3 Sea Surface Wind Speed (1-Day,0.25 deg)

Furthermore, Level 3 processing takes one month's worth of each geophysical parameter's Level 3 daily statistical mean values and calculates the monthly statistical mean value at each grid point using a simple arithmetic mean in the same way as the daily statistical mean calculation. The statistical means are calculated separately for observations along the satellite's ascending and descending tracks. This dataset includes Sea Surface Wind Speed (SSW) overwritten by latest data.

Coverage of the product is over the ocean only, and unit is [m/s]. Microwave radiometer can observe wind speed under the clouds, but it is difficult to estimate where there is rainfall and will be missing value. Wind speed around tropical cyclones, however, is important parameter in weather forecast, and we provide research product, which includes wind speed in rainy area over the ocean, as all-weather wind speed research product.

Missing value is -32768. When there is no geophysical data within observation swath, this value is set up when computing neither the case where the amount of geophysics is incomputable, nor the amount of geophysics. Error values are -32761 to -32767.

It is outside observation swath data. The provided format is HDF5. The Sampling resolution is 0.25degree grid.

The statistical period is 1 day. The current version of the product is Version 4. The Version 3 is also available.

The projection method is EQR. The generation unit is global.