Figure 3: Annual Enhanced minus Standard Wind Speed. Annual average of 1980-92 monthly average differences between the Release 1a enhanced minus standard mean of scalar wind (meters per second). In many cases, negative differences (more than -2 m/s) in 2-degree boxes around the U.S. coastline and across the equatorial tropical Pacific correspond to NDBC and PMEL moored buoy locations. Positive differences (less than 5 m/s, but rarely above 2 m/s) arise from relaxation of the trimming limits to 4.5 sigma.