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Record Search Query: ServiceParameters>DATA MANAGEMENT/DATA HANDLING>CATALOGING

Cleanstrain+ - A Program to Process Strainmeter Data
Entry ID: USGS_cleanstrain
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Summary
Abstract: The Cleanstrain code will simultaneously estimate the tidal constituents, pressure admittance, offsets, rate changes, and other terms using least-squares but, importantly, incorporating the temporally correlated nature of strain data (that is, the power spectra is red). I am aware of two alternative methods to analyze time-series data from strainmeters; one being baytap, and the other being the application of Kalman filter techniques. Although Kalman filter techniques are available in the literature, I'm not aware of any written as an easy application to strainmeter data. Although baytap is rigorous in its approach (ie, it assumes that the strainmeter data have a background noise process that is a combination of random walk and white noise), one needs to pre-clean the data by estimating and removing offsets and other transients and removing spurious observations which all might bias the results from baytap. Much subjectivity is used to pre-clean the data; the subjectivity is minimized using cleanstrain+.

This code will not automatically fix outliers and offsets. But, it will help identify those problems in the data and, once identified (with a time), it will then fix these problems. The cleanstrain package also includes a script called glitch+ which will also help identify the times of problems in the data.

[Summary provided by J. Langbein, USGS.]

Related URL
Link: GET SERVICE > GET SOFTWARE PACKAGE
Description: Download Cleanstrain.
Service Citation
Originators: USGS
Title: Cleanstrain+ - A Program to Process Strainmeter Data
Release_Date: 2008-12-05
Provider: USGS
Edition: 1.12
URL: http://earthquake.usgs.gov/monitoring/edm/cleanstrain/
ISO Topic Category
CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
GEOSCIENTIFIC INFORMATION
INLAND WATERS
OCEANS
Service Provider
Earthquake Hazards Program, Geological Division, U.S. Geological Survey, U.S. Department of the Interior

Service Provider Personnel
Name: EARTHQUAKE HAZARDS PROGRAM OFFICE
Contact Address:
12201 Sunrise Valley Drive, MS 905
City: Reston
Province or State: VA
Postal Code: 20192
Country: USA
Distribution Media
Distribution_Media: Online
Fees: No fees
Personnel
JOHN LANGBEIN
Role: TECHNICAL CONTACT
Phone: 650-329-4853
Fax: 650-329-5143
Email: langbein at usgs.gov
Contact Address:
U.S. Geological Survey
345 Middlefield Road MS 977
City: Menlo Park
Province or State: CA
Postal Code: 94025-3591
Country: USA

TYLER B. STEVENS
Role: SERF AUTHOR
Phone: (301) 614-6898
Fax: 301-614-5268
Email: Tyler.B.Stevens at nasa.gov
Contact Address:
NASA Goddard Space Flight Center
Global Change Master Directory
City: Greenbelt
Province or State: MD
Postal Code: 20771
Country: USA
Creation and Review Dates
SERF Creation Date: 2011-06-21
SERF Last Revision Date: 2011-06-21
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