Browsing Earth and Space Sciences by Title
Now showing items 65-84 of 87
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Relationship between temperature and dry-weather jokulhlaups from South Tahoma Glacier, Mount Rainier, Washington
(2016-12)Jokulhlaups, or glacial outburst floods, from South Tahoma Glacier on Mount Rainier pose a threat to park visitors, staff, and infrastructure. Jokulhlaups release without surficial precursors, and transition into debris ... -
Relief Well Rehabilitation Options in Chief Joseph Dam Right Abutment Drainage Tunnel
(2015-06)This report summarizes the data, observations, methods, assumptions, and decisions for the design of the Relief Well Rehabilitation Project in the Right Abutment Drainage Tunnel at Chief Joseph Dam. Chief Joseph Dam ... -
River and Hillslope Response to Localized Uplift Along a Left Bend of the San Andreas Fault, Santa Cruz Mountains, CA
(2016-06)Studying landscape evolution of the Earthís surface is difficult because both tectonic forces and surface processes control its response to perturbation, and ultimately, its shape and form. Researchers often use numerical ... -
Rockfall Reconnaissance and Stability Assessment: Frenchman Coulee, WA
(2019-03)The Sunshine Wall, a 30-meter tall outcrop of Columbia River Flood Basalt, is a popular climbing wall within Frenchman Coulee, located in central Washington. This study investigates the stability of the columnar basalt ... -
The role of large woody debris and riparian forest in channel avulsion in the Carbon River, Mount Rainier National Park, Washington
(2016-06)A specific type of natural log jam in the upper alluvial reach of the Carbon River was found to influence secondary channel avulsion, causing flooding hazards to the adjacent Carbon River Road in the northwest quadrant of ... -
Sediment accumulation in a manipulated bay of Puget Sound, Bellingham, WA.
(2019-06)Mud Bay, located in Bellingham, Washington at the north end of Chuckanut Bay, is filling with sediment at a rate greater than projected sea-level rise. This is worrisome as the bay is an important habitat for eelgrass ... -
Sediment characteristics at the delta of Chuckanut Creek, Mud Bay, Bellingham, Washington
(2019-03)ud Bay is south of Bellingham, WA, in the northern portion of Chuckanut Bay. It is predicted to be inundated by tsunamis generated by large Cascadia earthquakes. In this report, I describe shallow sediments in the bay and ... -
Shallow Landslide Risk Assessment of the Westerly Bluffs of the 7.5-minute Freeland Quadrangle, Whidbey Island, Washington
(2015-06)Landslides often occur on slopes rendered unstable by underlying geology, geomorphology, hydrology, weather-climate, slope modifications, or deforestation. Unfortunately, humans commonly exacerbate such unstable conditions ... -
Stratigraphic analysis of the southwestern quadrant of the Cedar Hills Regional Landfill: Incorporating recent borehole explorations and radiometric dating with previous investigations.
(2014-12)This report presents the results of stratigraphic analysis of the southwestern quadrant of the Cedar Hills Regional Landfill (CHRLF). My report was intended to incorporate the recent Area 8 borehole data into the pre-existing ... -
A study of reactive silica dissolution for determining potential alkali silica reactivity in concrete
(2016-12)Alkali silica reaction (ASR) has been recently identified as an issue relating to problematic performance characteristics of aggregates sourced in western Washington State. An abundance of literature on ASR attributes ... -
A Study of Shallow Groundwater Migration through Anthropogenic Fill along a Seawall
(2015-06)This report provides the findings and opinions of a historical document review, hydraulic balance calculation, and proposed additional study for a property that was historically used as a bulk petroleum storage and ... -
Surface Elevation Change Processes in the Snohomish River Estuary, Washington
(2015-03)Estuaries provide crucial ecosystem functions and contain significant socio-economic value. Within Washington State, estuaries supply rearing habitat for juvenile salmon during their transition period from freshwater to ... -
Surficial Geology of the Newly Annexed Area of Kirkland, Washington King County, USA
(2017-06)The 2014 Oso landslide brought nationwide attention to the geologic hazards of Washington State, impelling City of Kirkland officials to create a new geologic map of recently annexed areas and update prior 2010 geologic ... -
Transient seepage during Class-V Underground Injection Control Well Borehole Infiltration Tests in Vashon Advance Outwash, Puget Lowland, Washington
(2017-12)The radius of influence and height of groundwater mounding of Class-V Underground Injection Control (UIC) well infiltration within Quaternary Vashon Advance Outwash (Qva) is investigated and implications for regional ... -
Tsunami Inundation Modeling of Sequim Bay Area, Washington, USA from a Mw 9.0 Cascadia Subduction Zone Earthquake
(2017-06)The Strait of Juan de Fuca and the coastline nearby are prone to tsunami attacks along the Cascadia Subduction Zone (CSZ). Besides the tsunami deposits that exist on the outer coast, the inland geological evidence shows ... -
Using Geophysical Tools to Resolve Areas of Seismic Ambiguity
(2014-06)The flanks of an oil-bearing structure were investigated to determine the most likely reservoir geometry in an area where the seismic path forks in preparation for a field equity redetermination. Two alternate hypotheses ... -
Using Terrestrial LiDAR to Monitor Erosion within the Gold Basin Landslide Complex, Verlot, WA
(2016-03)In 2014 the United States Forest Service closed the Gold Basin Campground of western Washington in an effort to protect the public from unstable hillslopes directly adjacent to the campground. The Gold Basin Landslide ... -
Using the Rockfall Activity Index to assess the impact of scaling on rock fall activity at Glitter Gulch, Alaska
(2019-06)This research examines terrestrial-laser scan data on a road cut in the Glitter Gulch area of Alaska, immediately preceding and following a slope stabilization project, noting changes in rock fall and comparing the work ... -
Variations in Atterberg Limits for the Lawton Clay with Acidic Pore Fluids
(2020-03)The physical mechanisms that cause slope failure involving the Lawton Clay in the Puget Lowland have been well studied; however, the physio-chemical mechanisms, specifically acidic pore fluid are poorly understood. This ...