The SCEC geodetic transient detection validation exercise

Rowena B. Lohman, & Jessica R. Murray

Published 2013, SCEC Contribution #1700

Over the past decade a steadily increasing volume of freely-available Global Positioning System (GPS) measurements, combined with the application of new approaches for mining these data for signals of interest, has led to the identification of a large and diverse collection of time-varying processes. As large continuously recording geodetic networks continue to grow, it becomes less feasible to analyze the ever-expanding volume of data without the use of systematic search tools that require little or no user input. The time is ripe to implement ongoing monitoring for anomalous ground deformation signals. To address this need, the Southern California Earthquake Center (SCEC) community has supported an effort to establish operational capability for detecting transient signals using the dense network of continuous GPS observations now available in Southern California. This effort began with a community blind test exercise focused on algorithm development and now is moving toward testing in an operational mode using real data. Here we introduce this SRL special section by summarizing the setting and input for the blind test exercise and describing the suite of approaches that researchers explored in that phase of the project.

Lohman, R. B., & Murray, J. R. (2013). The SCEC geodetic transient detection validation exercise. Seismological Research Letters, 84(3), 419-425. doi: 10.1785/0220130041.