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Jonathan Stock (Former Employee)

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Interagency Postdoctoral Fellowship Opportunity

In fall of 2018, USGS and NASA launched an interagency postdoctoral fellowship. This jointly-funded pilot program will bring researchers to Silicon Valley to explore the application of cutting edge science and technology to some of our Nation's biggest challenges.
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National Innovation Center
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Interagency Postdoctoral Fellowship Opportunity

In fall of 2018, USGS and NASA launched an interagency postdoctoral fellowship. This jointly-funded pilot program will bring researchers to Silicon Valley to explore the application of cutting edge science and technology to some of our Nation's biggest challenges.
Learn More
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A soil landslide scar above a neighborhood of houses.

Rainfall and Landslides in Northern California

A summary of recent and past landslides and debris flows caused by rainfall in northern California, and links to current shallow landslide monitoring.
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Natural Hazards Mission Area, Landslide Hazards Program, Geologic Hazards Science Center, Big Sur Landslides
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Rainfall and Landslides in Northern California

A summary of recent and past landslides and debris flows caused by rainfall in northern California, and links to current shallow landslide monitoring.
Learn More
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Spatially explicit shallow landslide susceptibility mapping over large areas

Recent advances in downscaling climate model precipitation predictions now yield spatially explicit patterns of rainfall that could be used to estimate shallow landslide susceptibility over large areas. In California, the United States Geological Survey is exploring community emergency response to the possible effects of a very large simulated storm event and to do so it has generated...
Authors
Dino Bellugi, William E. Dietrich, Jonathan D. Stock, Jim McKean, Brian Kazian, Paul Hargrove
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Energy and Mineral Resources Mission Area, Natural Hazards Mission Area, Energy Resources Program, Groundwater and Streamflow Information Program, Landslide Hazards Program, Mineral Resources Program, National Laboratories Program, Science and Decisions Center, Geologic Hazards Science Center, Geology, Minerals, Energy, and Geophysics Science Center

Hydrologic conditions and terrestrial laser scanning of post-fire debris flows in the San Gabriel Mountains, CA, U.S.A.

To investigate rainfall-runoff conditions that generate post-wildfire debris flows, we instrumented and surveyed steep, small watersheds along the tectonically active front of the San Gabriel Mountains, California. Fortuitously, we recorded runoff-generated debris-flows triggered by one spatially restricted convective event with 28 mm of rainfall falling over 62 minutes. Our rain gages...
Authors
Kevin Schmidt, M. N. Hanshaw, James F. Howle, Jason W. Kean, Dennis M. Staley, Jonathan D. Stock, Gerald W. Bawden
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Energy and Mineral Resources Mission Area, Energy Resources Program, Mineral Resources Program, National Laboratories Program, Science and Decisions Center, Groundwater and Streamflow Information Program, Geology, Minerals, Energy, and Geophysics Science Center

Overview of the ARkStorm scenario

The U.S. Geological Survey, Multi Hazards Demonstration Project (MHDP) uses hazards science to improve resiliency of communities to natural disasters including earthquakes, tsunamis, wildfires, landslides, floods and coastal erosion. The project engages emergency planners, businesses, universities, government agencies, and others in preparing for major natural disasters. The project also...
Authors
Keith A. Porter, Anne Wein, Charles N. Alpers, Allan Baez, Patrick L. Barnard, James L. Carter, Alessandra Corsi, James Costner, Dale A. Cox, Tapash Das, Michael D. Dettinger, James Done, Charles Eadie, Marcia Eymann, Justin C. Ferris, Prasad Gunturi, Mimi Hughes, Robert D. Jarrett, Laurie A. Johnson, Hanh Dam Le-Griffin, David Mitchell, Suzette A. Morman, Paul J. Neiman, Anna H. Olsen, Suzanne C. Perry, Geoffrey S. Plumlee, Martin Ralph, David J. Reynolds, Adam Z Rose, Kathleen Schaefer, Julie Serakos, William Siembieda, Jonathan D. Stock, David Strong, Ian Sue Wing, Alex Tang, Pete Thomas, Ken Topping, Chris J. Wills, Lucile M. Jones
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Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program, Earthquake Hazards Program, Science Application for Risk Reduction, Geologic Hazards Science Center, Pacific Coastal and Marine Science Center, Big Sur Landslides, Reducing Risk, San Francisco Bay and Sacramento-San Joaquin Delta Estuary

Coral Ba/Ca records of sediment input to the fringing reef of the southshore of Moloka'i, Hawai'i over the last several decades

The fringing reef of southern Moloka’i is perceived to be in decline because of land-based pollution. In the absence of historical records of sediment pollution, ratios of coral Ba/Ca were used to test the hypothesis that sedimentation has increased over time. Baseline Ba/Ca ratios co-vary with the abundance of red, terrigenous sediment visible in recent imagery. The highest values at...
Authors
N.G. Prouty, M.E. Field, Jonathan D. Stock, Stacy D. Jupiter, M. McCulloch
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Pacific Coastal and Marine Science Center, Pacific Islands Water Science Center

Hydrologic characterization of desert soils with varying degrees of pedogenesis: 1. field experiments evaluating plant-relevant soil water behavior

To assess the eff ect of pedogenesis on the soil moisture dynamics infl uencing the character and quality of ecological habitat, we conducted infi ltration and redistribution experiments on three alluvial deposits in the Mojave National Preserve: (i) recently deposited active wash sediments, (ii) a soil of early Holocene age, and (iii) a highly developed soil of late Pleistocene age. At...
Authors
John R. Nimmo, Kimberlie Perkins, Kevin Schmidt, David Miller, Jonathan D. Stock, Kamini Singha
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Geology, Minerals, Energy, and Geophysics Science Center

Rapid measurement of field-saturated hydraulic conductivity for areal characterization

To provide an improved methodology for characterizing the field‐saturated hydraulic conductivity (Kfs) over broad areas with extreme spatial variability and ordinary limitations of time and resources, we developed and tested a simplified apparatus and procedure, correcting mathematically for the major deficiencies of the simplified implementation. The methodology includes use of a...
Authors
John R. Nimmo, Kevin Schmidt, Kimberlie Perkins, Jonathan D. Stock
By
Geology, Minerals, Energy, and Geophysics Science Center

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