Browsing Earth and Space Sciences by Title
Now showing items 1-20 of 87
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An Analysis of Radiocarbon Sampling Methods on Landslides in the North Fork Stillaguamish River Valley, Washington, USA
(2017-03)Tragedy in the North Fork Stillaguamish (NFS) River valley, Washington, USA has sparked an increase in landslide research in the Pacific Northwest. In 2014, the town of Oso, WA lost 43 lives to the deadliest landslide in ... -
Analysis of the Hydrogeological Conditions and the Effects of Development on the Hydraulic Head at Redmond Ridge East
(2016-06)Redmond Ridge East (RRE) is a large-scale master plan community in East King County, WA. In this report, I evaluate the spatial variability of the Quaternary Advance Outwash (Qva) at RRE and the time-series data for 16 ... -
Analysis of the Timing of Building Displacement during Intense Seismic Shaking for three Earthquakes, 2001 Mw 6.8 Nisqually (Washington State), 2017 Mw 7.1 Puebla (Mexico), 2018 Mw 7.1 2018 Anchorage (Alaska)
(2019-06)Localized intense ground shaking from strong earthquakes pose significant hazards to humans including building damage that may lead to structural failure and possible collapse. Building failure can cause harm or ... -
Assessing Fracture Connectivity using Stable and Clumped Isotope Geochemistry of Calcite Cements
(2014-12)Understanding flow path connectivity within a geothermal reservoir is a critical component for efficiently producing sustained flow rates of hot fluids from the subsurface. I present a new approach for characterizing ... -
An assessment of NRCS seasonal streamflow forecast performance in Idaho
(2018-03)This report summarizes recent NRCS seasonal streamflow forecast performance in Idaho. Considering only April 1st forecasts for the April-July period, I first attempted to quantify forecast performance from a usersí ... -
Assessment of Stream Restoration Efforts and Development of Effectiveness Monitoring Protocol, Ohop Creek, Pierce County, Washington
(2018-06)Between 2008 and 2015, the Nisqually Indian Tribe, Nisqually Land Trust, and South Puget Sound Salmon Enhancement Group conducted a multiphase restoration project on a two-km section of Ohop Creek, located west of the town ... -
Assessment, Restoration, and Management of the North Puyallup Trail, Mount Rainier National Park
(2016-12)The N Puyallup Trail, on Klapatche Ridge in Mount Rainier National Park, was originally the end of the Westside Road. The N Puyallup Trail has developed issues of surface erosion and landsliding since the area east of ... -
Calculating the Uncertainty of a Structure from Motion (SfM) Model, Cadman Quarry, Monroe, Washington
(2016-03)Structure from Motion (SfM) is a new form of photogrammetry that automates the rendering of georeferenced 3D models of objects using digital photographs and independently surveyed Ground Control Points (GCPs). This project ... -
Calling the Cedar River’s Bluff: A study of bed elevation changes and characterizing bluff grain size distributions in the Cedar River upstream of a depositional zone in the City of Renton, Washington
(2019-03)The Cedar River, a 477 km2 basin draining the Western Cascade Range, has experienced meters of channel aggradation over the last century in the lower three river kilometers (rkm), which has reduced channel conveyance and ... -
Channel Migration and Avulsion Hazards at Sunshine Point Campground, Mount Rainier National Park, Washington
(2015-03)In November 2006, the flood of record on the upper Nisqually River destroyed part of Sunshine Point Campground in Mount Rainier National Park, Washington. The Nisqually River migrated north and reoccupied five acres of its ... -
Characterizing the style, composition, and timing of Cedar River Landslide Complex
(2017-03)The Cedar River Landslide Complex (CRLC) is a series of debris flowslides about 3 km down river from the Masonry Dam at Chester Morse Reservoir in the Cedar River Municipal Watershed, the source of drinking water for 1.4 ... -
A comparative Analysis of Grain Size distributions and Cross Sections using an Oblique Photoset on the Nisqually Riverbed Adjacent to Longmire In Mount Rainier National Park
(2019-03)Collecting cobble counts and gathering cross sections out in the field can be a tedious and time consuming process. An attempt was made at expediting this process using structure from motion technology to create an orthophoto ... -
A Comparative Analysis of Two Slug Test Methods in Puget Lowland Glacio-Fluvial Sediments near Coupeville, WA
(2013-12)Two different slug test field methods are conducted in wells completed in a Puget Lowland aquifer and are examined for systematic error resulting from water column displacement techniques. Slug tests using the standard ... -
A comparison of landslide inventories along the shoreline of Steamboat Island Peninsula, Thurston County, WA: office based protocol vs. field based protocol
(2016-06)The mountain ranges and coastlines of Washington State have steep slopes, and they are susceptible to landslides triggered by intense rainstorms, rapid snow melts, earthquakes, and rivers and waves removing slope stability. ... -
A comparison of landslide inventories produced by manual and automated methods on timberlands in the Pacific Northwest
(2017-06)Landslides can threaten the potential value of total production on timberlands either by destroying a present crop or by inhibiting future growth. To mitigate or prevent such loss of value due to landslides, it is essential ... -
Computing Hydraulic Conductivity from Borehole Infiltration Tests and Grain-Size Distribution in Advance Glacial Outwash Deposits, Puget Lowland, Washington
(2015-12)This study evaluates two methods for estimating a soilís hydraulic conductivity: in-situ infiltration tests and grain-size analyses. There are numerous formulas in the literature that relate hydraulic conductivity to various ... -
Determining Spatial Distribution and Physical Properties of the Vashon Advance Outwash near Mountlake Terrace, Washington
(2015-06)This study is aimed at determining the spatial distribution, physical properties, and groundwater conditions of the Vashon advance outwash (Qva) in the Mountlake Terrace, WA area. The Qva is correlative with the Esperance ... -
Determining the Spring Water Provenance in the Warm Springs Valley Subarea of the Silver Creek Watershed in the Harney Hydrologic Basin, Harney County, Oregon
(2018-03)Due to the importance of springs as a water source for marshland habitat, which is vital for Pacific Flyway waterfowl in a portion of the Malheur National Wildlife Refuge in southeast Oregon, this work aims to determine ... -
Development of a Conceptual Site Model for Evaluating Seawater Intrusion under Sea Level Rise Scenarios Using Analytical Methods
(2016-06)Island County is located in the Puget Sound of Washington State and includes several islands, the largest of which is Whidbey Island. Central Whidbey Island was chosen as the project site, as residents use groundwater for ... -
Dominant wave energy and sediment movement on intertidal beaches in Freshwater Bay, Washington, U.S.A.
(2015-03)Freshwater Bay (FWB), Washington did not undergo significant erosion of its shoreline after the construction of the Elwha and Glines Canyon Dams, unlike the shoreline east of Angeles Point (the Elwha River’s lobate delta). ...