Earth-prints repository, logo   DSpace

About DSpace Software
|earth-prints home page | roma library | bologna library | catania library | milano library | napoli library | palermo library
Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/7433

Authors: Rowe, C.*
Falsaperla, S.*
Morton, E.*
Langer, H.*
Behncke, B.*
Title: Complementary Methods for Volcanic Seismic Source Discrimination
Issue Date: 5-Dec-2011
URL: http://agu-fm11.abstractcentral.com/s1aplanner/com.scholarone.s1aplanner.s1aplanner/S1APlanner.html?&CONFIG_ID=2224&USER_ID=1593989&ROLE_ID=11362&ROLE_TYPE_ID=10&PERSON2ROLE_ID=15483859&WORKFLOW_ID=17&CURRENT_PAGE=BROWSE_THE_PROGRAM&ALLOW_EDIT_INSTRUCTIONS_FL=N&SESSION_ADMIN_PERMISSION_FL=N&DIRECT_LOGIN_FL=Y&HASH_KEY=FgOGYNSN6aMUYxLi061xukB40&STUB_ROLE_ID=0&TIME=1326988447394&SOURCE_URL=http://agu-fm11.abstractcentral.com
Keywords: Volcano monitoring
seismology
computational seismology
Abstract: ABSTRACT FINAL ID: V53E-2673 TITLE: Complementary Methods for Volcanic Seismic Source Discrimination SESSION TYPE: Poster SESSION TITLE: V53E. Surveillance of Volcanic Unrest: New Developments in Multidisciplinary Monitoring Methods IV Posters AUTHORS (FIRST NAME, LAST NAME): Charlotte A Rowe1, Susanna M R Falsaperla2, Emily Morton3, Horst K Langer2, Boris Behncke2 INSTITUTIONS (ALL): 1. Los Alamos Natl Lab, Los Alamos, NM, United States. 2. Istituto Nazionale di Geofisica e Volcanologia, Catania, Italy. 3. Earth and Environmental Sciences, New Mexico Institute of Mining and Technology, Socorro, NM, United States. Title of Team: ABSTRACT BODY: We explore the success rates of detection and classification algorithms as applied to seismic signals from active volcanoes. The subspace detection method has shown some success in identifying repeating (but not identical) signals from seismic swarm sources, as well as pulling out nonvolcanic long period events within subduction zone tremor. We continue the exploration of this technique as applied to both discrete events and variations within volcanic tremor to determine optimal situations for its use. We will demonstrate both three-dimensional and subband applications both on raw waveforms and derived features such as skewness and kurtosis. The application can be used in both a supervised (select templates and compare) as well as unsupervised (cross-compare all samples and apply clustering to the matrix of comparisons). We compare the method to that of the KKAnalysis tool, which uses a self-organizing map approach to unsupervised clustering for feature vectors derived from the seismic waveforms. We will present a comparison of this method as applied to waveform features, spectral features and time-varying higher-order statistics as well as signal polarization, to elucidate the tools which show the best promise for problematic discrimination tasks.
Appears in Collections:Conference materials
05.01.99. General or miscellaneous

Files in This Item:

File SizeFormatVisibility
ABSTRACT FINAL.pdf49.19 kBAdobe PDFView/Open

This item is licensed under a Creative Commons License
Creative Commons


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.


Share this record
Del.icio.us

Citeulike

Connotea

Facebook

Stumble it!

reddit


 

Valid XHTML 1.0! ICT Support, development & maintenance are provided by CINECA. Powered on DSpace Software. CINECA