Publications
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A holistic modelling approach to project the evolution of inlet-interrupted coastlines over the 21st century
Approximately one quarter of the World’s sandy beaches, most of which are interrupted by tidal inlets, are eroding. Understanding the long-term (50-100 year) evolution of inlet-interrupted coasts in a changing climate is therefore of great importance for coastal zone planners and managers. This study therefore focuses on the development and piloting of an innovative model that can simulate the cli
Authors
Janaka Bamunawala, Ali Dastgheib, Rosh Ranasinghe, Ad van der Spek, Shreedhar Maskey, A. Brad Murray, Trang M. Duong, Patrick L. Barnard, Jeewanthi Gangani Sirisena
Morphology, structure, and kinematics of the San Clemente and Catalina faults based on high-resolution marine geophysical data, southern California Inner Continental Borderland
Catalina Basin, located within the southern California Inner Continental Borderland (ICB), is traversed by two active submerged fault systems that are part of the broader North America-Pacific plate boundary: the San Clemente fault (along with a prominent splay, the Kimki fault) and the Catalina fault. Previous studies have suggested that the San Clemente fault (SCF) may be accommodating up to hal
Authors
Maureen A. L. Walton, Daniel S. Brothers, James E. Conrad, Katherine L. Maier, Emily C. Roland, Jared W. Kluesner, Peter Dartnell
Conceptual model for the removal of cold-trapped H2O ice on the Mars northern seasonal springtime polar cap
The transport of H2O ice along the retreating north polar seasonal CO2 ice cap has previously been modeled and observed. Spectral observations show that H2O ice forms on the interior of the seasonal cap, while thermal observations show these regions to be consistent with CO2 ice. Prior to the sublimation of the seasonal CO2, the observed H2O ice deposits are diminished—and because H2O ice sublimat
Authors
Timothy N. Titus, Kaj E. Williams, Glen E. Cushing
New opportunities to study earthquake precursors
No abstract available.
Authors
M. E. Pritchard, R. M. Allen, T. W. Becker, M. D. Behn, E. E. Brodsky, R. Burgmann, C. Ebinger, J. T. Freymueller, M. C. Gerstenberger, B. Haines, Y. Kaneko, S. D. Jacobsen, N. Lindsey, Jeffrey McGuire, Morgan T. Page, S. Ruiz, M. Tolstoy, L. Wallace, W. R. Walter, W. Wilcock, H. Vincent
A maximum rupture model for the southern San Andreas and San Jacinto Faults California, derived from paleoseismic earthquake ages: Observations and limitations
Paleoseismic rupture histories provide spatiotemporal models of earthquake moment release needed to test numerical models and lengthen the instrumental catalog. We develop a model of the fewest and thus largest magnitude earthquakes permitted by paleoseismic data for the last 1,500 years on the southern San Andreas and San Jacinto Faults, California, USA. The largest geometric complexity appears t
Authors
Katherine Scharer, Doug Yule
Segmentation and supercycles: A catalog of earthquake rupture patterns from the Sumatran Sunda Megathrust and other well-studied faults worldwide
After more than 100 years of earthquake research, earthquake forecasting, which relies on knowledge of past fault rupture patterns, has become the foundation for societal defense against seismic natural disasters. A concept that has come into focus more recently is that rupture segmentation and cyclicity can be complex, and that a characteristic earthquake model is too simple to adequately describ
Authors
Belle E. Philibosian, Aron J. Meltzner
Deep Learning as a tool to forecast hydrologic response for landslide-prone hillslopes
Empirical thresholds for landslide warning systems have benefitted from the incorporation of soil‐hydrologic monitoring data, but the mechanistic basis for their predictive capabilities is limited. Although physically based hydrologic models can accurately simulate changes in soil moisture and pore pressure that promote landslides, their utility is restricted by high computational costs and nonuni
Authors
Elijah Orland, Joshua J. Roering, Matthew A. Thomas, Benjamin B. Mirus
Human behavioral response in the Ridgecrest earthquakes: Assessing immediate actions based on data from “Did You Feel It?”
Human behavioral response to earthquake ground motion has long been a subject of multidisciplinary interest and research. In most versions of seismic intensity scales, human perceptions and behavior are one component of the assignment of intensity. Public health research has shown that actions taken during earthquakes have a significant impact on the incidence of injury or the maintenance of safet
Authors
James D. Goltz, Hyejeong Park, Vince Quitoriano, David J. Wald
In situ observations of wave transformation and infragravity bore development across reef flats of varying geomorphology
The character and energetics of infragravity (IG, 25 s < period < 250 s) and very-low frequency (VLF, period > 250 s) waves over coral reef flats can enhance shoreline erosion or accretion, and also govern extreme shoreline events such as runup, overwash, and flooding on coral reef-lined coasts. Here we use in situ wave measurements collected along cross-reef transects at 7 sites on Pacific island
Authors
Olivia Cheriton, Curt D. Storlazzi, Kurt J. Rosenberger
Selective sediment transport during Hurricane Sandy on Fire Island (New York, USA): Inferences from heavy-mineral assemblages
In October 2012, Hurricane Sandy caused severe erosion on beaches and dunes of Fire Island (New York, USA). Major shoreline changes occurred with erosional dominance in the upper shoreline and aggradation in the lowermost section of the beach due to the deposition of eroded upper beach and dune sediment. Sand laminations with a high concentration of heavy minerals (“black sand laminations”) were o
Authors
João Cascalho, Pedro Costa, Guy R. Gelfenbaum, SeanPaul La Selle, Bruce E. Jaffe
The potential of using dynamic strains in earthquake early warning applications
We investigate the potential of using borehole strainmeter data from the Network of the Americas (NOTA) and the U.S. Geological Survey networks to estimate earthquake moment magnitudes for earthquake early warning (EEW) applications. We derive an empirical equation relating peak dynamic strain, earthquake moment magnitude, and hypocentral distance, and investigate the effects of different types of
Authors
Noha Sameh Ahmed Farghal, Andrew J Barbour, John Langbein
Book Review of "Mathematical Geosciences: Hybrid Symbolic-Numeric Methods", by Joseph L. Awange, Béla Paláncz, Robert H. Lewis, and Lajos Völgyesi
No abstract available.
Authors
Eric L. Geist