Gridded and blended sea surface windstresses from multiple satellites with direction from NCEP Reanalysis-2; Global ocean coverage with a 0.25-degree resolution; The whole datasets covers from July 1987 to present, monthly resolution in this dataset; 6-hourly and daily are also available in other directories; See http://www.ncdc.noaa.gov/oa/rsad/blendedseawinds.html and links within for details. Include (taux,tauy) means & mean tau as scalar means