Effective Source Functions from Local Surface Measurements
Abstract
The objective of the work presented here is to develop and evaluate the adequacy of an elastic source description of the near-in surface recordings of ground motion from the underground nuclear test 'Milrow'. Generalized ray, mode and discrete wavenumber techniques have been applied to model four of the available vertical and radial L-7 records. Preliminary results indicate that an elastic description will be adequate for distances greater than 7 km. No clear azimuthal trends are manifest in the teleseismic data. No evidence of nonlinear or anelastic behavior has been detected for data in the range 7. to 11.5 km. In the future, a refined crustal structure for the test site will be developed, and a definitive source function for both Cannikin and Milrow will be obtained.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 31, 1981
- Accession Number
- ADA103793
Entities
People
- David M. Cole