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90
180
270
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90
180
270
-193 cm
182cm
Figure 4. NASA Dynamic Sea Surface Topography model.
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90
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270
II'
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DMAGEOSAT
141,082 values
KMS ERS-l
7,559 values
NOAAERS-l
6,873 values
NOAA Multiple
1,017 values
Figure 5. Sources of the altimetry derived 30'x30' mean gravity anomaly file.
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360
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