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Monitoring Earth and Sun by Satellite
Science, 1987Researchers attending the spring meeting of the American Geophysical Union held 18 to 21 May in Baltimore have grown familiar with doing geophysical studies by satellite. Here are three current examples discussed at the meeting: gauging the output of the sun, measuring crustal movement, and deciphering the mineral composition of surface rocks.
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Landslide Mapping and Monitoring with Satellite Interferometry
2020The potential of multi-interferometric approach applied to the Sentinel-1 acquisitions for the analysis of slope instabilities is presented and discussed through two different landslides of very different nature. In the first case, Sentinel-1 data, systematically acquired with short revisiting time and promptly processed allows for the quick ...
Raspini F. +3 more
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Satellite monitoring of disturbances in Arctic ecosystems
2009 IEEE International Geoscience and Remote Sensing Symposium, 2009This study explores the capability of satellite remote sensing to detect relatively rapid changes of vegetation cover in northern Fennoscandian regions in response to disturbance more generally, and insect defoliation damage in particular. The data used is a long term time series of leaf area index (LAI) at 8Km resolution derived from the Advanced Very
Ana Prieto-Blanco +4 more
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Aerosol Monitoring by Satellite Horizon Scanning
Journal of Spacecraft and Rockets, 1971A newly adapted horizon-scanning technique can simultaneously monitor the vertical distribution of aerosols, as well as ozone and neutral atmospheric density, in the stratosphere and mesosphere for both meteorological and ecological application in a global satellite-monitoring program. The horizon-inversion technique permits the conversion of scattered
C. GRAY, H. MALCHOW, D. MERRITT, R. VAR
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Volcano monitoring by satellite
Geology Today, 1989‘St Pierre, in the morning throbbing with life, thronged with people, is no more. Its ruins stretch before us, wrapped in their shroud of smoke and ashes, gloomy and silent, a city of the dead’. Thus was St Pierre described by the Vicar‐General of Martinique in the aftermath of the 8 May 1902 eruption of Mt Pelée.
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Satellite clocks characterization and monitoring for global navigation satellite systems
2011 XXXth URSI General Assembly and Scientific Symposium, 2011In Global Navigation Satellite Systems (GNSS) the user's position is determined measuring the time of flight of the signals broadcast from satellites, which is proportional to the distance between the user and each satellite of the constellation. Time and frequency metrology has an essential role in satellite navigation systems: since a distance can be
A. CERNIGLIARO, SESIA, ILARIA
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10th International Conference on Digital Satellite Communications (ICDSC-10), 1995
To effectively manage a satellite communications network, it is necessary to monitor the performance of the carriers within that network. The carrier power, center frequency, and bandwidth of each carrier must be monitored to fully utilize the space segment resources.
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To effectively manage a satellite communications network, it is necessary to monitor the performance of the carriers within that network. The carrier power, center frequency, and bandwidth of each carrier must be monitored to fully utilize the space segment resources.
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Satellite Monitoring of Volcanoes
1996Ever-increasing population densities of volcanic regions around the world dictate that the potential risks of any eruption are also increasing. Rapid developments in remote-sensing science in recent years vastly expand our capabilities to monitor volcanoes across the entire electromagnetic spectrum.
P. W. Francis +2 more
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Satellite Techniques: New Perspectives for the Monitoring of Dams
2014Dam deformation detection, analysis, and monitoring represent a growing issue for a large part of commercial companies and research groups at national and international levels. Although dam failures are usually sudden, in the majority of cases it is possible to predict when structural damage conditions might become serious.
CORSETTI, MARCO +5 more
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Collision monitoring within satellite clusters
IEEE Transactions on Control Systems Technology, 2005An autonomous online collision avoidance methodology for satellite clusters is developed and simulated. Contours of probability, defined using state uncertainty ellipsoids, are used to monitor and predict potential collisions over time. The methodology integrates three approaches in order to reduce online computation for autonomous operations while ...
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