Title :
Antenna beamwidth and antenna pointing-induced errors in topographic monitoring from satellite radar altimeters
Author :
Partington, K.C.
Author_Institution :
Geophys. Inst., Alaska Univ., Fairbanks, AK, USA
fDate :
1/1/1998 12:00:00 AM
Abstract :
Satellite radar altimeters from different missions are being used to monitor changes in surface height over the terrestrial ice sheets. This communications highlights sources of error that do not appear to have been accounted for in these analyses, namely, errors caused by differences in antenna beamwidths, antenna pointing angles, and stabilities
Keywords :
glaciology; hydrological techniques; ice; measurement errors; remote sensing by radar; spaceborne radar; antenna beamwidth; antenna pointing-induced error; error source; glacier; glaciology; ice surface height; measurement technique; polar ice sheet; radar altimetry method; radar remote sensing; satellite radar altimeter; spaceborne radar; surface height; terrestrial ice sheet; topographic monitoring; topography change; Ice surface; Instruments; Monitoring; Radar antennas; Radar scattering; Receiving antennas; Satellite antennas; Spaceborne radar; Surface topography; Surface waves;
Journal_Title :
Geoscience and Remote Sensing, IEEE Transactions on
