Surface-Wave Data Products from USArray

GSTDTAP

项目编号	1460081
	Surface-Wave Data Products from USArray
	Goran Ekstrom
主持机构	Columbia University
项目开始年	2015
	2015-04-01
项目结束日期	2016-03-31
资助机构	US-NSF
项目类别	Standard Grant
项目经费	100213(USD)
国家	美国
语种	英语
英文摘要	The project will use data from the 10-year deployment of the seismic stations in the USArray Transportable Array across the lower 48 states to map seismological properties of the top 100 km of the crust and shallow mantle beneath the continent. The focus of the project is a comprehensive analysis of seismic surface waves using traditional and modern methods, including the analysis of ambient seismic noise, which are seismic waves caused by human activity, ocean waves, and atmospheric phenomena such as wind. The project will generate high-resolution maps of different properties of the rocks in the crust and mantle that will facilitate continent-wide interpretation of the structure and tectonic evolution of North America. The seismic data collected by nearly 2000 sensors distributed across the continent will be used to determine (1) maps of short-period (5-40 sec) Love and Rayleigh wave speed using inter-station cross correlation of seismic noise; (2) maps of longer-period (25-125 sec) Love and Rayleigh wave speed using two-station and mini-array techniques; and (3) maps of local elastic Rayleigh wave amplification at longer periods using a differential-amplitude technique. Quantitative comparisons of the data with model-based predictions will be used to demonstrate the consistency between results of different researchers, and identify differences that motivate further investigation.
来源学科分类	Geosciences - Earth Sciences
文献类型	项目
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/67747
专题	环境与发展全球科技态势
推荐引用方式 GB/T 7714	Goran Ekstrom.Surface-Wave Data Products from USArray.2015.