Search results: “Leo”

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  • Punctuated Sediment Discharge during Early Pliocene Birth of the Colorado River: Evidence from Regional Stratigraphy, Sedimentology, and Paleontology

    Punctuated Sediment Discharge during Early Pliocene Birth of the Colorado River: Evidence from Regional Stratigraphy, Sedimentology, and Paleontology

    Sedimentary Geology, Elsevier | January 1, 2018...
    Summary

    The Colorado River in the southwestern U.S. provides an excellent natural laboratory for studying the origins of a continent-scale river system, because deposits...

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  • Holocene paleoclimate records from a large California estuarine system and its watershed region: linking watershed climate and bay conditions

    Holocene paleoclimate records from a large California estuarine system and its watershed region: linking watershed climate and bay conditions

    Quaternary Science Reviews, Elsevier | July 10, 2006...
    Summary

    The San Francisco Bay-Delta system includes a watershed that covers a large area of California and provides water to two-thirds of the State's...

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  • Evidence for coseismic subsidence events in a southern California coastal saltmarsh

    Evidence for coseismic subsidence events in a southern California coastal saltmarsh

    Nature | March 20, 2017...
    Summary

    Paleoenvironmental records from a southern California coastal saltmarsh reveal evidence for repeated late Holocene coseismic subsidence events. Field analysis of sediment gouge cores...

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  • The importance of system configuration for distributed direct potable water reuse

    The importance of system configuration for distributed direct potable water reuse

    Nature Sustainability | April 27, 2020...
    Summary

    Water and wastewater infrastructure worldwide faces unprecedented demand and supply conflicts that require unconventional solutions. In this study, we develop a novel modelling...

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  • Downscaling global ocean climate models improves estimates of exposure regimes in coastal environments

    Downscaling global ocean climate models improves estimates of exposure regimes in coastal environments

    Nature | August 26, 2020...
    Summary

    Climate change is expected to warm, deoxygenate, and acidify ocean waters. Global climate models (GCMs) predict future conditions at large spatial scales, and these...

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  • When floods hit the road: Resilience to flood-related traffic disruption in the San Francisco Bay Area and beyond

    When floods hit the road: Resilience to flood-related traffic disruption in the San Francisco Bay Area and beyond

    Science Advances, American Association for the Advancement of Science (AAAS) | August 5, 2020...
    Summary

    As sea level rises, urban traffic networks in low-lying coastal areas face increasing risks of flood disruptions. Closure of flooded roads causes employee...

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  • A 1,200-year perspective of 21st century drought in southwestern North America

    A 1,200-year perspective of 21st century drought in southwestern North America

    Proceedings of the National Academy of Sciences (PNAS) | December 11, 2009...
    Summary

    A key feature of anticipated 21st century droughts in Southwest North America is the concurrence of elevated temperatures and increased aridity. Instrumental records...

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  • Hydrologic and hydrochemical framework, south-central Great Basin, Nevada-California, with special reference to the Nevada Test Site

    Hydrologic and hydrochemical framework, south-central Great Basin, Nevada-California, with special reference to the Nevada Test Site

    U.S. Geological Survey (USGS) | July 1, 1975...
    Summary

    Intensely fractured Precambrian and Paleozoic carbonate and clastic rocks and block-faulted Cenozoic volcanic and sedimentary strata in the Nevada Test Site are divided into 10...

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  • The relative contributions of summer and cool-season precipitation to groundwater recharge, Spring Mountains, Nevada, USA

    The relative contributions of summer and cool-season precipitation to groundwater recharge, Spring Mountains, Nevada, USA

    Hydrogeology Journal, Springer | June 1, 1998...
    Summary

    A comparison of the stable-isotope signatures of spring waters, snow, snowmelt, summer (July thru September) rain, and cool season (October thru June) rain...

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  • Major carbon-14 anomaly in a regional carbonate aquifer—Possible evidence for megascale channeling, south-central Great Basin

    Major carbon-14 anomaly in a regional carbonate aquifer—Possible evidence for megascale channeling, south-central Great Basin

    American Geophysical Union (AGU) | December 1, 1976...
    Summary

    The carbon 14 content of groundwater at the center of a 16‐km‐long fault‐controlled spring line at Ash Meadows in south central Nevada is...

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