The Dictionary of the Climate Debate (DCD)

Definition: A radar technique that is used to measure the elevation of land, sea, and ice surfaces with respect to the centre of the earth.

Example Usages -

1. "Global mean sea level is almost surely rising. Historical data are not adequate to compute accurate global averages. No mathematical trick compensates for missing data. Present multidecadal estimates of global averages have an element of fantasy about them. (Among other issues, an unsubstantiated blind faith in models.)

Altimetry represents the only realistic technology for quantitatively determining present and future changes, but much more needs to be understood of errors present in the system. Modelling present and future global and regional changes lies at the very edge of computational knowledge and capability. The chief issue is to make sure that some future generation will have adequate data."
(Source: Carl Wunsch | , MIT EPA October 2008 )

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