Publications
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The Station Information System (SIS): A centralized seismic station repository for populating, managing, and distributing metadata The Station Information System (SIS): A centralized seismic station repository for populating, managing, and distributing metadata
Creating, maintaining, and archiving accurate station metadata is critical for successful seismic network operations, data discovery, and research. The Station Information System (SIS) is a centralized repository of seismic station equipment inventory, instrument response, and site information of stations operated by regional seismic networks (RSNs) of the Advanced National Seismic...
Authors
Ellen Yu, Prabha Acharya, Justin Jaramillo, Sue Kientz, Valerie I. Thomas, Egill Hauksson
6th international conference on Mars polar science and exploration: Conference summary and five top questions 6th international conference on Mars polar science and exploration: Conference summary and five top questions
We provide a historical context of the International Conference on Mars Polar Science and Exploration and summarize the proceedings from the 6th iteration of this meeting. In particular, we identify five key Mars polar science questions based primarily on presentations and discussions at the conference and discuss the overlap between some of those questions. We briefly describe the seven
Authors
Isaac B. Smith, Serina Diniega, David W. Beaty, Thorsteinn Thorsteinsson, Patricio Becerra, Ali Bramson, Stephen M. Clifford, Christine S. Hvidberg, Ganna Portyankina, Sylvain Piqueux, Aymeric Spiga, Timothy N. Titus
Imaging shear strength along subduction faults Imaging shear strength along subduction faults
Subduction faults accumulate stress during long periods of time and release this stress suddenly, during earthquakes, when it reaches a threshold. This threshold, the shear strength, controls the occurrence and magnitude of earthquakes. We consider a 3-D model to derive an analytical expression for how the shear strength depends on the fault geometry, the convergence obliquity...
Authors
Quentin Bletery, Amanda M. Thomas, Alan W. Rempel, Jeanne L. Hardebeck
The 2015 Gorkha (Nepal) Earthquake sequence: I. Source modeling and deterministic 3D ground shaking The 2015 Gorkha (Nepal) Earthquake sequence: I. Source modeling and deterministic 3D ground shaking
To better quantify the relatively long period (
Authors
Shengji Wei, Meng Chen, Xin Wang, Robert Graves, Eric Lindsey, Teng Wang, Cagil Karakas, Don Helmberger
The Colour and Stereo Surface Imaging System (CaSSIS) for the ExoMars Trace Gas Orbiter The Colour and Stereo Surface Imaging System (CaSSIS) for the ExoMars Trace Gas Orbiter
The Colour and Stereo Surface Imaging System (CaSSIS) is the main imaging system onboard the European Space Agency’s ExoMars Trace Gas Orbiter (TGO) which was launched on 14 March 2016. CaSSIS is intended to acquire moderately high resolution (4.6 m/pixel) targeted images of Mars at a rate of 10–20 images per day from a roughly circular orbit 400 km above the surface. Each image can be...
Authors
N. Thomas, G. Cremonese, R. Ziethe, M. Gerber, M. Brandli, G. Bruno, M. Erismann, L. Gambicorti, T. Gerber, K. Ghose, M. Gruber, P. Gubler, H. Mischler, J. Jost, D. Piazza, A. Pommerol, M. Rieder, V. Roloff, A. Servonet, W. Trottmann, T. Uthaicharoenpong, C. Zimmermann, D. Vernani, M. Johnson, E. Pelo, T. Weigel, J. Viertl, N. De Roux, P. Lochmatter, G. Sutter, A. Casciello, T. Hausner, I. Ficai Veltroni, V. Da Deppo, P. Orleanski, W. Nowosielski, T. Zawistowski, S. Szalai, B. Sodor, S. Tulyakov, G. Troznai, M. Banaskiewicz, J.C. Bridges, S. Byrne, S. Debei, M. R. El-Maarry, E. Hauber, C.J. Hansen, A. Ivanov, L. Keszthelyil, Randolph L. Kirk, R. Kuzmin, N. Mangold, L. Marinangeli, W. J. Markiewicz, M. Massironi, A. S. McEwen, Chris H. Okubo, L.L. Tornabene, P. Wajer, J.J. Wray
Geoelectric monitoring at the Boulder magnetic observatory Geoelectric monitoring at the Boulder magnetic observatory
Despite its importance to a range of applied and fundamental studies, and obvious parallels to a robust network of magnetic-field observatories, long-term geoelectric field monitoring is rarely performed. The installation of a new geoelectric monitoring system at the Boulder magnetic observatory of the US Geological Survey is summarized. Data from the system are expected, among other...
Authors
Cletus Blum, Tim White, Edward A. Sauter, Duff Stewart, Paul A. Bedrosian, Jeffrey J. Love
Monitoring gas and heat emissions at Norris Geyser Basin, Yellowstone National Park, USA based on a combined eddy covariance and Multi-GAS approach Monitoring gas and heat emissions at Norris Geyser Basin, Yellowstone National Park, USA based on a combined eddy covariance and Multi-GAS approach
We quantified gas and heat emissions in an acid-sulfate, vapor-dominated area (0.04-km2) of Norris Geyser Basin, located just north of the 0.63 Ma Yellowstone Caldera and near an area of anomalous uplift. From 14 May to 3 October 2016, an eddy covariance system measured half-hourly CO2, H2O and sensible (H) and latent (LE) heat fluxes and a Multi-GAS instrument measured (1 Hz frequency)
Authors
Jennifer L. Lewicki, Peter J. Kelly, Deborah Bergfeld, R. Greg Vaughan, Jacob B. Lowenstern
A comprehensive analysis of geodetic slip rate estimates and uncertainties in California A comprehensive analysis of geodetic slip rate estimates and uncertainties in California
Developing a comprehensive model of tectonic continental deformation requires assessing (1) fault‐slip rates, (2) off‐fault deformation rates, and (3) realistic uncertainties. Fault‐slip rates can be estimated by modeling fault systems, based on space geodetic measurements of active surface ground displacement such as Global Navigation Satellite Systems (GNSS) and Interferometric...
Authors
Eileen Evans
Disturbance hydrology: Preparing for an increasingly disturbed future Disturbance hydrology: Preparing for an increasingly disturbed future
This special issue is the result of several fruitful conference sessions on disturbance hydrology, which started at the 2013 AGU Fall Meeting in San Francisco and have continued every year since. The stimulating presentations and discussions surrounding those sessions have focused on understanding both the disruption of hydrologic functioning following discrete disturbances, as well as...
Authors
Benjamin B. Mirus, Brian A. Ebel, Christian H. Mohr, Nicolas Zegre
Subduction zone slip variability during the last millennium, south-central Chile Subduction zone slip variability during the last millennium, south-central Chile
The Arauco Peninsula (37°-38°S) in south-central Chile has been proposed as a possible barrier to the along-strike propagation of megathrust ruptures, separating historical earthquakes to the south (1960 AD 1837, 1737, and 1575) and north (2010 AD, 1835, 1751, 1657, and 1570) of the peninsula. However, the 2010 (Mw 8.8) earthquake propagated into the Arauco Peninsula, re-rupturing part...
Authors
Tina Dura, Benjamin P. Horton, Macro Cisternas, Lisa L Ely, Isabel Hong, Alan R. Nelson, Robert L. Wesson, Jessica E. Pilarczyk, Andrew C. Parnell, Daria Nikitina
Modeling of high‐frequency seismic‐wave scattering and propagation using radiative transfer theory Modeling of high‐frequency seismic‐wave scattering and propagation using radiative transfer theory
This is a study of the nonisotropic scattering process based on radiative transfer theory and its application to the observation of the M 4.3 aftershock recording of the 2008 Wells earthquake sequence in Nevada. Given a wide range of recording distances from 29 to 320 km, the data provide a unique opportunity to discriminate scattering models based on their distance‐dependent behaviors...
Authors
Yuehua Zeng
Seafloor fluid seeps on Kimki Ridge, offshore southern California: Links to active strike-slip faulting Seafloor fluid seeps on Kimki Ridge, offshore southern California: Links to active strike-slip faulting
The Kimki Ridge fluid seeps are located in western Catalina Basin about 60 km southwest of the southern California mainland and at a water depth of approximately 1100 m. Multichannel seismic reflection profiles collected by the U.S. Geological Survey (USGS) in 2014 show acoustic transparency within the Kimki Ridge, suggesting the possibility of fluid seeps and possible sub-seafloor fluid...
Authors
James E. Conrad, Nancy G. Prouty, Maureen A. L. Walton, Jared W. Kluesner, Katherine L. Maier, Mary McGann, Daniel S. Brothers, Emily C. Roland, Peter Dartnell