EM 1110-2-2907
1 October 2003
Figure 5-26. Close-up of the Atlantic Gulf Stream. Ocean temperature and current
mapping was performed with AVHRR thermal data. The temperatures have been
classified and color-coded. Yellow = water 23oC (73oF), green = 14Co (57oF), blue
(c) Radar. Radar (radio detection and ranging) systems are able to
penetrate cloud cover in certain wavelengths. This technology is useful for imag-
ing day or night surface features during periods of intense cloud cover, such as
storms, smoke from fire, or sand and dust storms (Figure 5-27).
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