David Hill (Former Employee)
Science and Products
Filter Total Items: 65
Analysis of a GRACE global mascon solution for Gulf of Alaska glaciers Analysis of a GRACE global mascon solution for Gulf of Alaska glaciers
We present a high-resolution Gravity Recovery and Climate Experiment (GRACE) mascon solution for Gulf of Alaska (GOA) glaciers and compare this with in situ glaciological, climate and other remote-sensing observations. Our GRACE solution yields a GOA glacier mass balance of –65 ± 11 Gt a–1 for the period December 2003 to December 2010, with summer balances driving the interannual...
Authors
Anthony Arendt, Scott Luthcke, Alex Gardner, Shad O’Neel, David Hill, Geir Moholdt, Waleed Abdalati
A fluid-driven earthquake swarm on the margin of the Yellowstone caldera A fluid-driven earthquake swarm on the margin of the Yellowstone caldera
Over the past several decades, the Yellowstone caldera has experienced frequent earthquake swarms and repeated cycles of uplift and subsidence, reflecting dynamic volcanic and tectonic processes. Here, we examine the detailed spatial-temporal evolution of the 2010 Madison Plateau swarm, which occurred near the northwest boundary of the Yellowstone caldera. To fully explore the evolution...
Authors
David R. Shelly, David P. Hill, Frederick Massin, Jamie Farrell, Robert B. Smith, Taka'aki Taira
S-wave triggering of tremor beneath the Parkfield, California, section of the San Andreas fault by the 2011 Tohoku, Japan earthquake: observations and theory S-wave triggering of tremor beneath the Parkfield, California, section of the San Andreas fault by the 2011 Tohoku, Japan earthquake: observations and theory
The dynamic stresses that are associated with the energetic seismic waves generated by the Mw 9.0 Tohoku earthquake off the northeast coast of Japan triggered bursts of tectonic tremor beneath the Parkfield section of the San Andreas fault (SAF) at an epicentral distance of ∼8200 km. The onset of tremor begins midway through the ∼100‐s‐period S‐wave arrival, with a minor burst...
Authors
David P. Hill, Zhigang Peng, David R. Shelly, Chastity Aiken
Effects of currents and tides on fine-scale use of marine bird habitats in a Southeast Alaska hotspot Effects of currents and tides on fine-scale use of marine bird habitats in a Southeast Alaska hotspot
Areas with high species richness have become focal points in the establishment of marine protected areas, but an understanding of the factors that support this diversity is still incomplete. In coastal areas, tidal currents—modulated by bathymetry and manifested in variable speeds—are a dominant physical feature of the environment. However, difficulties resolving tidally affected...
Authors
Gary S. Drew, John F. Piatt, David J. Hill
Dynamic stresses, coulomb failure, and remote triggering: corrected Dynamic stresses, coulomb failure, and remote triggering: corrected
Dynamic stresses associated with crustal surface waves with 15–30 s periods and peak amplitudes
Authors
David P. Hill
Surface-wave potential for triggering tectonic (nonvolcanic) tremor-corrected Surface-wave potential for triggering tectonic (nonvolcanic) tremor-corrected
Source processes commonly posed to explain instances of remote dynamic triggering of tectonic (nonvolcanic) tremor by surface waves include frictional failure and various modes of fluid activation. The relative potential for Love- and Rayleigh-wave dynamic stresses to trigger tectonic tremor through failure on critically stressed thrust and vertical strike-slip faults under the Coulomb...
Authors
David P. Hill
Science and Products
Filter Total Items: 65
Analysis of a GRACE global mascon solution for Gulf of Alaska glaciers Analysis of a GRACE global mascon solution for Gulf of Alaska glaciers
We present a high-resolution Gravity Recovery and Climate Experiment (GRACE) mascon solution for Gulf of Alaska (GOA) glaciers and compare this with in situ glaciological, climate and other remote-sensing observations. Our GRACE solution yields a GOA glacier mass balance of –65 ± 11 Gt a–1 for the period December 2003 to December 2010, with summer balances driving the interannual...
Authors
Anthony Arendt, Scott Luthcke, Alex Gardner, Shad O’Neel, David Hill, Geir Moholdt, Waleed Abdalati
A fluid-driven earthquake swarm on the margin of the Yellowstone caldera A fluid-driven earthquake swarm on the margin of the Yellowstone caldera
Over the past several decades, the Yellowstone caldera has experienced frequent earthquake swarms and repeated cycles of uplift and subsidence, reflecting dynamic volcanic and tectonic processes. Here, we examine the detailed spatial-temporal evolution of the 2010 Madison Plateau swarm, which occurred near the northwest boundary of the Yellowstone caldera. To fully explore the evolution...
Authors
David R. Shelly, David P. Hill, Frederick Massin, Jamie Farrell, Robert B. Smith, Taka'aki Taira
S-wave triggering of tremor beneath the Parkfield, California, section of the San Andreas fault by the 2011 Tohoku, Japan earthquake: observations and theory S-wave triggering of tremor beneath the Parkfield, California, section of the San Andreas fault by the 2011 Tohoku, Japan earthquake: observations and theory
The dynamic stresses that are associated with the energetic seismic waves generated by the Mw 9.0 Tohoku earthquake off the northeast coast of Japan triggered bursts of tectonic tremor beneath the Parkfield section of the San Andreas fault (SAF) at an epicentral distance of ∼8200 km. The onset of tremor begins midway through the ∼100‐s‐period S‐wave arrival, with a minor burst...
Authors
David P. Hill, Zhigang Peng, David R. Shelly, Chastity Aiken
Effects of currents and tides on fine-scale use of marine bird habitats in a Southeast Alaska hotspot Effects of currents and tides on fine-scale use of marine bird habitats in a Southeast Alaska hotspot
Areas with high species richness have become focal points in the establishment of marine protected areas, but an understanding of the factors that support this diversity is still incomplete. In coastal areas, tidal currents—modulated by bathymetry and manifested in variable speeds—are a dominant physical feature of the environment. However, difficulties resolving tidally affected...
Authors
Gary S. Drew, John F. Piatt, David J. Hill
Dynamic stresses, coulomb failure, and remote triggering: corrected Dynamic stresses, coulomb failure, and remote triggering: corrected
Dynamic stresses associated with crustal surface waves with 15–30 s periods and peak amplitudes
Authors
David P. Hill
Surface-wave potential for triggering tectonic (nonvolcanic) tremor-corrected Surface-wave potential for triggering tectonic (nonvolcanic) tremor-corrected
Source processes commonly posed to explain instances of remote dynamic triggering of tectonic (nonvolcanic) tremor by surface waves include frictional failure and various modes of fluid activation. The relative potential for Love- and Rayleigh-wave dynamic stresses to trigger tectonic tremor through failure on critically stressed thrust and vertical strike-slip faults under the Coulomb...
Authors
David P. Hill
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