Computer Science – Performance
Scientific paper
Apr 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003eaeja.....3444k&link_type=abstract
EGS - AGU - EUG Joint Assembly, Abstracts from the meeting held in Nice, France, 6 - 11 April 2003, abstract #3444
Computer Science
Performance
Scientific paper
The European NetLander Project will deploy a network of four landers on Mars, each of which equipped with a Very Broad Band seismometer. This presentation discusses the performance of several network configurations, which are currently discussed by the Landing Sites Working Group, in terms of global quake detection and localization capability. To evaluate the configurations, methods are used that are independent of the actual interior of Mars, thus providing robust results. The distance from the epicenter to the closest station is taken as a measure for the network's ability to detect a quake. The possible localization accuracy is computed for a localization based on azimuth measurements to be independent of assumptions regarding the velocity distribution. Both detection and localization accuracy are mapped over the entire surface of Mars and are compared to the results for a tetrahedron network, which would be the optimum four-station global network. Some of the configurations, with stations concentrated in one area, are dedicated to studies of local seismicity. Here, the detection and localization capability will be poor for events occuring on the rest of the planet. Two of the tested configurations perform nearly as well as a tetrahedron.
Knapmeyer Martin
Oberst Jürgen
Spohn Tilman
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