Figure 6:  Data from the recently launched NASA scatterometer (NSCAT) instrument aboard Japan's Advanced Earth Observing Satellite (ADEOS) can be used to estimate wind speed and direction over the oceans, where surface observations have previously been very sparse. The blue shading shows wind speed and the arrows show wind direction for September 21, 1996, at noon Greenwich time. Having this information on a regular basis will improve forecasts of the weather, of severe storms, and of the slowly changing ocean conditions that play a major role in determining how the seasonal climate will vary in the tropics and over North America. In this figure, two typhoons are present in the western Pacific Ocean and other features such as the trade winds are shown (see Appendix D for further information). Source: Figure provided by W.T. Liu and W. Tang of the NASA Jet Propulsion Laboratory.


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