🚀 go-pugleaf

In article <13979@shemp.CS.UCLA.EDU>, khayo@sonia.math.ucla.edu (Eric Behr) writes:
< Downloaded from NASA SpaceLink BBS, Huntsville, Ala. (205) 895 0028
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 ...
<      NASA's Seasat satellite, launched 10 years ago this week,
< ushered in a new era of space research focusing on unsolved
< questions of the world's oceans and weather.
 ...
<      Among the experimental instruments Seasat pioneered were a
< synthetic aperture radar, which provided highly detailed images
< of ocean and land surfaces; a radar scatterometer to measure
< near-surface wind speed and direction; a radar altimeter to
< measure the height of the ocean surface and waves; and a scanning
< multi-channel microwave radiometer to measure surface
< temperature, wind speeds and sea ice cover. The satellite also
< carried a passive visual and infrared radiometer to provide
< supporting data for the other four experiments.
 ...
 
 How does the radar altimeter decouple its "height" above ocean
 surface from the "height" of the ocean's surface? What scales
 are involved (+-10 meters)? A reference point?

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<                                                        Eric

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