COAPS NSCAT Gridded Wind Data Download Area

The effective sampling time is non-homogeneous in space and time, but is typically between one and three days, with a peak at two days. A characteristic averaging time can be estimated by applying the averaging technique to the absolute value of the difference in time between each observation an d 12Z on the day to which the wind field applies. This characteristic time is roughly half the effective sampling period. The probability distribution of this characteristic time (for the region around the Gulf of Mexico and the Caribbean Sea) shows the effectiveness of this averaging technique. Data sets with homogeneous sampling characteristics require much larger spatial and temporal bins for averaging. This technique captures relatively rapid and small scale changes that might othe rwise be missed. The effectiveness of this technique can be seen in animations showing gap flow through Mexico's Isthmus of Tehuantepec.

A manuscript describing this gridding technique and data set has been prepared and is in review.

NetCDF libraries are required to access the data, and can be obtained from UNIDATA.