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Showing 1 to 9 of 9 for “"radar altimetry"”.
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Electromagnetic bias in radar altimetry at microwave frequencies
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1992.
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Land based applications of multi-mission Satellite Radar Altimetry
The success of the Radar Altimeter in determining sea surface heights over the open ocean is well known, with heights accurate to <5cm (Chelton et al., 2001); however land based applications are under developed. This is due to the complexity of the waveforms returned from land surfaces; retracking …
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Studies to Improve Estimation of the Electromagnetic Bias in Radar Altimetry
<p>In May of 2000 Jason-1, a joint project between NASA and the French space agency CNES, will be launched. Its mission is to continue the highly successful gathering of data which TOPEX/Poseidon has collected since August of 1992. The main goal of Jason-1 is to achieve higher accuracy in measuring …
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Satellite borne radar altimetry : empirical orbit refinement and ocean signal recovery techniques
… of the sea surface obtained by satellite borne radar altimetry are irregularly spaced and contaminated with various modelling and correction errors. The largest source of uncertainty for low Earth orbiting satellites such as ERS-1 and Geosat may be attributed to orbital modelling errors. The …
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Pipelining Of Double Precision Floating Point Division And Square Root Operations On Field-programmable Gate Arrays
… such as vision-based systems, synthetic aperture radar, and radar altimetry rely increasingly on high data rate DSP algorithms. These algorithms use double precision floating point arithmetic operations. While most DSP applications can be executed on DSP processors, the DSP numerical requirements …
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GPS based analysis of earthquake induced phenomena at the Sunda Arc
… on source inversions are compared to satellite radar altimetry observations. Postseismic GPS time series are used to test a wide parameter range of uni- and biviscous rheological models of the asthenosphere. Steady-state Maxwell rheology is shown to be incompatible with near-field GPS data, …
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Ocean Tides Modeling using Satellite Altimetry
… over coastal regions. Advances in satellite radar altimetry technology enabled a globally sampled record of sea surface height (SSH) and its changes over the past two decades, particularly after the launch of TOPEX/POSEIDON satellite. This geophysical record enables numerous scientific …
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Study of the Origins of the Sigma-0 Blooms
… high, but localized, values of the ocean's radar cross section, sigma-0, were observed by scientists at the NASA Goddard Space Flight Center. These phenomena have been referred to as sigma-0 blooms, and are accompanied by an increase in noise in the significant wave height (SWH) and altitude …
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Application of open-access and 3rd party geospatial technology for integrated flood risk management in data sparse regions of developing countries
… River Basin of Nigeria were filled using Radar Altimetry (RA) and Multiple Imputation (MI) approaches. This reduced uncertainty associated with missing data, especially at locations where virtual altimetry stations exist. This study revealed that the size and consistency of the gap within …