منابع مشابه
ApL D2p radar Altimeter over Land and sea ice
easuring changes in the cryosphere from satellite-based altimeters has and will continue to provide data that are essential to our understanding of the long-term trends of the earth’s ice cover. over the past years, ApL has played a major role in airborne field activities observing continental ice sheets, outlet glaciers, and sea ice using the delayDoppler phase-monopulse (D2p) airborne radar a...
متن کاملIce Measurements by Geosat Radar Altimetry
The surface topography of the Greenland and Antarctic ice sheets is the principal ice parameter obtainable from satellite radar altimetry. The improved ability of the GEOSA T altimeter to follow irregular surfaces and its extended operation have greatly increased the available topographic data on ice sheets for the study of ice dynamics and the possible detection of changes in global ice volume.
متن کاملPolar Sea Ice Mapping Using SeaWinds Data
Microwave remote sensing provides an excellent means for mapping polar sea ice extent. In this study, a new algorithm for polar sea ice mapping is developed for use with the SeaWinds instrument. The approach utilizes a priori information within the framework of Bayes detection to produce sea ice extent maps. Statistical models for sea ice and ocean are represented in histograms which are filter...
متن کاملAnalysis of CryoSat’s radar altimeter waveforms over different Arctic sea ice regimes
Satellite altimetry has been used to derive information about sea ice thickness in the Arctic already for several decades. As part of the algorithms applied the shape of the radar signal is used to identify leads, the open water between ice floes. Analysis of airborne altimeter data reveals that the waveform shape can additionally be used to identify different sea ice types. In this study we an...
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ژورنال
عنوان ژورنال: IEEE Journal of Oceanic Engineering
سال: 1989
ISSN: 0364-9059
DOI: 10.1109/48.16827