Upper Watershed Management

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  • A Measure of Snow: A Report Based on Case Studies of The Snow Survey and Water Supply Forecasting Program

    A Measure of Snow: A Report Based on Case Studies of The Snow Survey and Water Supply Forecasting Program

    U.S. Department of Agriculture (USDA), Natural Resources Conservation Service | November 1, 2008...
    Summary

    Snow depth and snow water content data have been collected and disseminated throughout the Western United States for over 100 years. Early snow survey and...

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  • A rationale for effective post-fire debris flow mitigation within forested terrain

    A rationale for effective post-fire debris flow mitigation within forested terrain

    Geoenvironmental Disasters, Springer | May 25, 2018...
    Summary

    Watersheds recently burned by wildfires are recognized as having an increased susceptibility to debris flow occurrence. The great majority occur within the first 2...

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  • A study of methods to estimate debris flow velocity

    A study of methods to estimate debris flow velocity

    Landslides, Springer | September 16, 2019...
    Summary

    Debris flow velocities are commonly back-calculated from superelevation events which require subjective estimates of radii of curvature of bends in the debris flow...

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  • Attribution of declining western U.S. snowpack to human effects

    Attribution of declining western U.S. snowpack to human effects

    American Meteorological Society (AMS) | December 1, 2008...
    Summary

    Observations show snowpack has declined across much of the western United States over the period 1950–99. This reduction has important social and economic...

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  • California Water Plan 2013: Mountain Counties Regional Report

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    California Water Plan 2013: Mountain Counties Regional Report

    California Department of Water Resources (DWR) | October 30, 2014...
    Summary

    As the State works to solve the water crisis in California, the potential for redirected impacts in the Mountain Counties Area is acute....

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  • California’s Water: Protecting Headwaters

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    California’s Water: Protecting Headwaters

    Public Policy Institute of California (PPIC) | October 1, 2016...
    Summary

    Mountainous regions provide most of the state’s water supply. But major problems loom— from a growing risk of wildfires to a shrinking snowpack....

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  • Climate and landscape drive the pace and pattern of conifer encroachment into subalpine meadows

    Climate and landscape drive the pace and pattern of conifer encroachment into subalpine meadows

    Ecological Applications, Ecological Society of America | May 8, 2018...
    Summary

    Mountain meadows have high biodiversity and help regulate stream water release following the snowmelt pulse. However, many meadows are experiencing woody plant encroachment,...

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  • Cumulative effects of fire and drought in Mediterranean ecosystems

    Cumulative effects of fire and drought in Mediterranean ecosystems

    Ecosphere, Ecological Society of America (ESA) | August 18, 2017...
    Summary

    The occurrence of multiple disturbances can jointly affect the recovery capacity of ecosystems, potentially leading to changes in vegetation dynamics or loss of resilience....

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  • Declining mountain snowpack in western North America

    Declining mountain snowpack in western North America

    American Meteorological Society (AMS) | January 3, 2005...
    Summary

    Mountain snowpack in western North America is a key component of the hydrologic cycle, storing water from the winter (when most precipitation falls)...

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  • Environmental Health Risks from Abandoned Mines in the Sierra Nevada

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    Environmental Health Risks from Abandoned Mines in the Sierra Nevada

    The Sierra Fund | June 9, 2014...
    Summary

    The widespread pollution from Gold Rush mining activities, including mercury, arsenic and lead, constitutes the oldest and longest neglected environmental justice problem in...

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