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Measuring Long-Period Travel Times

Measuring Long-Period Travel Times
测量长周期旅行时间
批准号：
8904685
负责人：
T. Guy Masters
金额：
$5.5万
依托单位：
University of California-San Diego Scripps Inst of Oceanography
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
1989
资助国家：
美国
项目状态：
已结题
起止时间：
1989-07-15 至 1990-07-31
来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=8904685&HistoricalAwards=false
关键词：
MeasuringLongPeriodTravelTimes

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英文摘要
As a result of previous NSF support, this research project has developed a set of over 10,000 measurements of PP-P and SS-S long-period differential travel times . Work on this data set to date includes a description of the various factors affecting the data and an examination of the correlation of the measurements with 3-D models and tectonics. Based on these software and data gathering efforts, new experiments on different seismic phases and 3-D inversions for mantle structure will be done. This work is an obvious and needed extension of previous NSF-supported research. This research has important application to the 3-D determination of mantle seismic velocities which are used as constraints in dynamic models of convection, the driving force of crustal distortion and earthquakes. It therefore is a contribution to the National Earthquake Hazard Reduction Program.
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Improved estimation of free oscillation splitting coefficients using a combination of autoregressive estimation and the neighborhood algorithm
Combined analysis of surface wave phase and amplitude data using finite frequency kernals: Towards a detailed mode of attenuation in the upper mantle
A Global Study of Anisotropy and Composition in Earth's Mantle
A Workshop to Develop a New CSEDI Science Plan, February 2004
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