EarthScope Science Data Products provides access to a variety of data products that are being developed by EarthScope researchers. These are generally higher order products that result from grants to individual researchers or groups of researchers. Raw data collected and data products produced by EarthScope facilities are available under "Data Access". We urge EarthScope scientists who have data products they would like to share to contact the EarthScope National Office.
Thematic Working Groups
TWG Structures and Tasks
Quick Links
Visualizations
Many research facilities are using EarthScope instrument data to produce scientific models and visual representations.
SIO Visualization Center
EarthScope Voyager, Jr.
UC Davis KeckCAVES
Station Map
P-Wave Tomography
Scott Burdick et al.'s P-wave tomography using data from regional and teleseismic distances. The dataset includes USArray TA data and, as the array moves east, the model will be updated leading to a high-resolution image of upper mantle structure beneath the U.S. The 3-D results for the wider study area (10º -70ºN, 150º -50ºW and 0-1000 km depth) are available online in 0.5ºx0.5ºx50km increments. Reference: Burdick, S., et. al., Seismological Research Letters, 79(3), 384-392, May/June 2008. http://web.mit.edu/~sburdick/www/tomography.html
Receiver Reference Models
Tom Owen's receiver reference models. A prototype for automated production of EarthScope/USArray data products for the EARS (the EarthScope Automated Receiver Survey) that provides crustal thickness and average crustal Vp/Vs ratios beneath USArray TA stations. Computed receiver functions are available in SAC. References: Crotwell, H.P. and T.J. Owens, Automated estimation of bulk crustal properties using USArray data, IRIS Newsletter, 3:4-5, 2006. Crotwell, H.P. and T.J. Owens, Automated receiver function processing. Seismological Research Letters, 76, 702-708, 2005. http://www.seis.sc.edu/projects/EARS/index.html
Ambient Seismic Noise
The Center for Imaging the Earth's Interior at the University of Colorado provides images of seismic velocity derived from ambient seismic noise. The site contains Rayleigh and Love wave group and phase velocity maps since inception of the TA array in October 2004 illustrating improved resolution and increased spatial coverage. Maps are for several period bands from 8 s to 40 s sensitive to crust and uppermost mantle structure. http://ciei.colorado.edu/ambient_noise/
Earthquake Ground Motion Animations
Charles Ammon's earthquake ground motion animations. Animations of seismic waves as they sweep across the USArray TA for selected larger earthquakes illustrating regional and teleseismic wave propagation phenomena. http://eqseis.geosc.psu.edu/~cammon/QA/
Regional Moment Tensors
Robert Herrmann's regional moment tensor solutions for moderate-to-large earthquakes in the U.S. from USArray TA and ANSS broadband seismic stations. Results are obtained in the time and the frequency domain. For both approaches and each event waveform fit and amplitude-phase match figures are provided that allow users to evaluate moment tensor quality. http://www.eas.slu.edu/Earthquake_Center/MECH.NA/
Geodetic monitoring of the western US and Hawaii
Tim Melbourne and colleagues in the Department of Geological Sciences at Central Washington University maintain a web site that is updated daily to show results from ~1500 continuous GPS stations along the Pacific/North American plate boundary, ranging from Alaska to the U.S./Mexico border. http://www.geodesy.org/wusdaily
For daily updates of GPS data from Hawaii, see http://www.soest.hawaii.edu/pgf/SEQ
Time-dependant Strain
The Stony Brook EarthScope Project, managed by William Holt, provides models of time-dependant strain associated with a number of recent earthquakes and other geologic events as constrained by GPS data. Software, tutorials and reference models are also available to construct models spanning time scales of days to decades and spatial scales of kilometers to megameters. http://rock.geo.sunysb.edu/~holt/EarthScope/
Global Strain Rate Map
The GSRM is a project of the International Lithosphere Program whose mission is to determine a globally self-consistent strain rate and velocity field model, consistent with geodetic and geologic field observations. The current GSRM is produced by SUNY Stony Brook and is a "digital model of the global velocity gradient tensor field associated with accommodation of present-day crustal motions." http://gsrm.unavco.org/intro/