Beaver (Castor canedensis), well known for their dam-building ecosystem engineering activities and potential as a nuisance species, are increasingly being used as a restoration agent and conservation tool to restore dynamism in streams and create better habitat for a variety … (Read More) What can a rodent teach us about restoring streams?
Trends in streamflow timing and volume in the Pacific Northwest United States have been attributed primarily to increased temperatures because trends in precipitation at lower elevation stations were negligible. We demonstrate that observed streamflow declines likely are associated with declines … (Read More) High and Dry: Declining Precipitation in the Mountains of the Pacific Northwest
Helicoprion is one of the most distinctive fossils to come out of the ground in the Intermountain West. More than 150 teeth are arranged in a perfect spiral the size of a dinner plate or larger. Helicoprion fossils have been … (Read More) Whorl tooth sharks of Idaho: Catching the biggest fish of the Permian
NASA’s Ice, Cloud, and land Elevation Satellite-2 (ICESat-2) is the next-generation orbiting laser altimeter. Its primary aim is to monitor sea-ice thickness and ice sheet elevation change at scales from outlet glaciers to the entire ice sheet, and enable global … (Read More) The future of remote sensing: NASA’s ICESat-2 mission
In the past decade many new (geo)applications have been developed that utilize the seismic and acoustic wavefields propagating within the Earth and the atmosphere. These new applications are now viable because of advances in theory, instrumentation, data processing methods and … (Read More) Seismology for Today’s Geoscientists
The University of Utah Seismograph Stations (UUSS) maintains and operates seismic networks in both Utah and in Yellowstone National Park. Using this data UUSS detects and locates seismic sources occurring in these regions. The talk will cover an overview of … (Read More) Monitoring Seismic Sources in the Intermountain Region
Near Surface Characterization and Water Flux Quantification Through Geoelectrical Methods: Application to the HOBE Agricultural Test Site at Voulund, Denmark.
Hydrogeophysics is attracting increasing interest in the environmental sciences community as it provides a variety of non-intrusive techniques to study near surface processes. Among the available geophysical methods, I have mainly worked with geoelectrical methods, which include electrical resistivity tomography … (Read More) Near Surface Characterization and Water Flux Quantification Through Geoelectrical Methods: Application to the HOBE Agricultural Test Site at Voulund, Denmark.
The bizarre case of seismologists being fined and sentenced to prison for doing or not doing something that no one can really do… or is it really that simple; a combination of science, sociology, politics, the justice system and human … (Read More) When Predictors go to Prison: the L’Aquila Earthquake Verdict
The discovery of Episodic Tremor and Slip (ETS) was only about 13 years ago, first in Japan and then in Cascadia. Seismologists at the University of Washington have been deeply involved with it’s study using both regional seismic network data … (Read More) The Winter, 2014 Magnitude 6.5 Earthquake in Puget Sound that no one will feel.
As the anthropogenic footprint increases on Earth, the wise use, maintenance, and protection of freshwater resources is a key element in the sustainability of development. Borne from efforts to promote sustainable development of water resources, Integrated Water Resource Management (IWRM) … (Read More) Flexible framework for assessing water resource sustainability in river basins
Major goals in geophysics involve improving our understanding of (a) the source physics of geophysical processes, such as earthquakes, and (b) the medium through which the signatures from these processes are observed (the ‘path’). This talk summarizes the use of … (Read More) The Seismoacoustic Wavefield: Understanding Source and Path
Sattelite radar interferometry to study crustal surface deformation processes: 4D magmatic systems (El Hierro Island)
New insights into the magma storage and evolution at oceanic island volcanoes are now being achieved using remotely sensed space geodetic techniques, namely satellite radar interferometry. Differential radar interferometry is a technique tracking, at high spatial resolution, changes in the … (Read More) Sattelite radar interferometry to study crustal surface deformation processes: 4D magmatic systems (El Hierro Island)
Identifying Topographic Controls of Terrestrial Vegetation Using Remote Sensing Data in a Semi-Arid Mountain Watershed, Idaho, USA
Global climate change is a significant research focus area in contemporary Earth science. Changes in climatic patterns have already resulted in shifting energy flows with associated changes in hydrologic and ecologic systems. More specifically, changes in vegetation distribution and abundance are one of the most … (Read More) Identifying Topographic Controls of Terrestrial Vegetation Using Remote Sensing Data in a Semi-Arid Mountain Watershed, Idaho, USA
The Boise Hydrogeophysical Research Site (BHRS) and associated alluvial aquifer has been an important site for hydrogeophysical investigation over the past 20 years but there has remained a lack of sufficient understanding of boundary conditions between the aquifer and atmosphere … (Read More) Modeling Fluxes and States of Moisture and Heat through a Coarse Fluvial Aquifer
Deep percolation (DP) is estimated from a small study catchment in the semi arid rain-snow transition zone in the foothills north of Boise, ID. A water balance is performed at the catchment soil bedrock interface, where soil drainage is assumed … (Read More) Estimating Deep Percolation from the Mountain Rain-Snow Transition Zone
To quantify the spatial variability of mountain snowpacks, where depths can vary drastically over length scales as small as 1–2 meters in complex terrain, high-resolution remote sensing techniques are often employed. Specifically, repeated airborne LIght Detection And Ranging (Lidar) surveys … (Read More) Remote Sensing Techniques for Measuring the Spatiotemporal Variability of Seasonal Snow
Mathematical models for geophysical phenomena are typically formulated as some system of partial differential equations (e.g., Stokes’ equations, shallow water wave equations, Richards equation, elastic wave equations, and Maxwell’s equations). Solving these equations can rarely be achieved through analytical means … (Read More) Radial basis functions: A mesh-free modeling framework for computational geosciences
During the 2010 winter season, 21 inexpensive ultrasonic snow depth (USD) sensors were constructed and installed at Treeline and Lower Deer Point sites located within the snow dominated Dry Creek Experimental Watershed, near Boise, Idaho. 6 USD sensors, including a … (Read More) Assessing Local Snow Variability using a Network of Ultrasonic Snow Depth Sensors
Granulite xenoliths erupted in Neogene basalts, and a rare outcrop of Precambrian basement along the northern margin of the Snake River Plain (SRP) can be used as windows into the origin and stabilization of the lower crust of southern Idaho. Previous … (Read More) A Precambrian History of Cratonic North American Crust Beneath the Snake River Plain, Idaho
A seismic acquisition method that is successful in one area sometimes fails in another, and attempts to fix the problems in processing do not always work. The success in recent years with alternative acquisition schemes has shown the need for … (Read More) Acquisition modeling: expect the unexpected