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Statistics and Physical Oceanography
FIGURE 6.1 Example pattern of satellite ground tracks for the Geosat altimeter (see Douglas and Cheney, 1990, and Vol. 95, Nos. C3 and C10 of J.Geophys. Res.) with a 17-day exact repeat orbit configuration. Upper panel shows the ground tracks traced out during days 1 to 3 (solid lines), days 4 to 6 (dashed lines), and days 7 to 9 (dotted lines) of each 17-day repeat cycle. Note the eastward shift of a coarse-resolution ground track pattern at 3-day intervals. Lower panel shows the complete grid of ground tracks sampled during each 17-day cycle. SOURCE: Courtesy of Dudley Chelton, Oregon State University.