Results 191 to 200 of about 38,348 (235)
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SPIE Proceedings, 1997
Space-based laser altimeters are effective in providing topographic measurements critically important to the understanding of the formation and early evolution of planetary bodies. Using laser altimetry data, topographic grids can be produced that provide significant insight into the shape, internal structure and evolution of the subject body.
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Space-based laser altimeters are effective in providing topographic measurements critically important to the understanding of the formation and early evolution of planetary bodies. Using laser altimetry data, topographic grids can be produced that provide significant insight into the shape, internal structure and evolution of the subject body.
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1992
Abstract : Using altimeter data for quantitative information about sea ice is an idea with relatively few proponents. Often the poor spatial sampling given by the altimeter's single-point measurements along widely spaced ground tracks and the difficulty of interpreting altimeter pulse echoes over ice are cited as reasons to avoid altimetry.
Florence M. Fetterer +5 more
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Abstract : Using altimeter data for quantitative information about sea ice is an idea with relatively few proponents. Often the poor spatial sampling given by the altimeter's single-point measurements along widely spaced ground tracks and the difficulty of interpreting altimeter pulse echoes over ice are cited as reasons to avoid altimetry.
Florence M. Fetterer +5 more
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Lakes Studies from Satellite Altimetry
2010Accurate and continuous monitoring of lakes and inland seas has been possible since 1993 thanks to the success of satellite altimetry missions: TOPEX/POSEIDON (T/P), GFO, JASON-1, and ENVISAT. Global processing of the data of these satellites can provide time series of lake surface heights over the entire Earth at different temporal and spatial scales ...
Cretaux, J-F +5 more
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Journal of Navigation, 1966
In the terminal area and for the approach and landing phase, radio provides the most appropriate method of height measurement. That is to say that the altitude reference frame is switched from barometric to terrain clearance measurement. It is at first a little surprising to see from Mr.
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In the terminal area and for the approach and landing phase, radio provides the most appropriate method of height measurement. That is to say that the altitude reference frame is switched from barometric to terrain clearance measurement. It is at first a little surprising to see from Mr.
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Satellite Altimetry Applications
MTT-S International Microwave Symposium Digest, 1975This paper provides a brief background of precision satellite altimetry. A description of satellite altimetry concepts and instrumentation is presented. The parameters measured, supporting data, and techniques, as well as physical limitations, are discussed. In addition, results are shown and a variety of applications is emphasized.
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Altimetry for the future: Building on 25 years of progress
Advances in Space Research, 2021Saleh Abdalla +2 more
exaly
Sea Modeling by Microwave Altimetry
2006In this note the applications of altimeter data to the monitoring of the sea surface height and, in particular, to the evaluation of large-scale oceanic currents are reviewed. The general problem of the altimeter measurement, with a special reference to the TOPEX/POSEIDON mission, is discussed.
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