A5012571334- Hydrology and Watershed Management Studies
- Hydrology and Sediment Transport Processes
- Cryospheric studies and observations
- Flood Risk Assessment and Management
- Fish Ecology and Management Studies
- Species Distribution and Climate Change
- Soil erosion and sediment transport
- Archaeology and Natural History
- Forest Management and Policy
- Tree-ring climate responses
- Ecology and biodiversity studies
- Forest Ecology and Biodiversity Studies
- Forest ecology and management
- Climate change and permafrost
- Coastal wetland ecosystem dynamics
- Climate change impacts on agriculture
- Recycling and Waste Management Techniques
- Meteorological Phenomena and Simulations
- Rangeland and Wildlife Management
- Environmental DNA in Biodiversity Studies
- Nuclear and radioactivity studies
- Plant Water Relations and Carbon Dynamics
- Geology and Paleoclimatology Research
- Graphite, nuclear technology, radiation studies
- Peatlands and Wetlands Ecology
Pacific Northwest Research Station
2018-2022
US Forest Service
2014-2021
Abstract Estimating the thermal response of streams to a warming climate is important for prioritizing native fish conservation efforts. While there are plentiful estimates air temperature responses change, sensitivity streams, particularly small headwater temperatures less well understood. A substantial body literature correlates subannual scale variations in and stream driven by annual cycles solar angle; however, these may be low‐precision proxy change changes energy balance. We analyzed...
River-wetland corridors form where a high degree of connectivity between the surface (rheic) and subsurface (hyporheic) components streamflow creates an interconnected system channels, wetlands, ponds, lakes. occur valley floor is sufficiently wide to accommodate laterally unconfined river planform that may feature morphologically complex, multi-threaded channels with vegetated bars, islands, floodplains. can develop anywhere there expansion along drainage network, from headwaters estuaries...
In the semi-arid environment of Blue Mountains, Oregon (USA), water is a critical resource for both ecosystems and human uses will be affected by climate change in near- long-term. Warmer temperatures reduce snowpack snow-dominated watersheds transition to mixed rain snow, while snow dominated shift towards dominated. This result high flows occurring more commonly late autumn winter rather than spring, lower low summer, phenomena that may already Pacific Northwest. Higher peak are expected...
Degraded floodplains and valley floors are restored with the goal of enhancing habitat for native fish aquatic-riparian biota protection or improvement water quality. Recent years have seen a shift toward “process-based restoration” that is intended to reestablish compromised ecogeomorphic processes resulting from site- watershed-scale degradation. One form process-based restoration has developed in Pacific Northwest, United States, reconnect rivers their by slowing down flows sediment,...
Abstract. Summer streamflows in the Pacific Northwest are largely derived from melting snow and groundwater discharge. As climate warms, diminishing snowpack earlier snowmelt will cause reductions summer streamflow. Most regional-scale assessments of change impacts on streamflow use downscaled temperature precipitation projections general circulation models (GCMs) coupled with large-scale hydrologic models. Here we develop apply an analytical hydrogeologic framework for characterizing...
Abstract Floods are the most frequent natural disaster, causing more loss of life and property than any other in USA. also strongly influence structure function watersheds, stream channels, aquatic ecosystems. The Pacific Northwest is particularly vulnerable to climatically driven changes flood frequency magnitude, because snowpacks that generation near freezing point thus sensitive small temperature. To improve predictions future flooding potential inform strategies adapt these changes, we...
High‐quality information is needed for conservation and management of aquatic resources on lands administered by the U.S. Forest Service ( USFS ). Information ultimately derived from data, so maintains a series databases that are used to describe status trends habitats biota. The spatially explicit crowd‐sourced, meaning distributed networks professionals technicians operating throughout National System collect stream biological measurements, which stored in central repositories. How those...
Abstract A maturing body of evidence suggests that anthropogenic impacts on river‐wetland corridors (RWCs) are greater and more widespread than previously recognized. Partly, this stems from the difficulty differentiating between legacy channel evolution resulting natural disturbances. Here, we apply geomorphic grade line (GGL) relative elevation model (REM) method to reveal pre‐Anthropocene fluvial features for a 42‐km reach Entiatqua (English translation—the Entiat River) in North Cascade...
Abstract. Summer streamflows in the Pacific Northwest are largely derived from melting snow and groundwater discharge. As climate warms, diminishing snowpack earlier snowmelt will cause reductions summer streamflow. Most assessments of impacts a changing to streamflow make use downscaled temperature precipitation projections General Circulation Models (GCMs). Projected simulations these GCMs often too coarse for planning purposes, as they do not capture smaller scale topographic controls...
A maturing body of evidence suggests that anthropogenic impacts on river-wetland corridors may be greater and more widespread than previously recognized. We applied the Geomorphic Grade Line (GGL) method to define pre-Anthropocene valley surfaces within segments 42-kilometer Entiat River Valley (ERV) North Cascade Mountains, USA. developed GGL-relative elevation models (GGL-REMs) by subtracting, from high-resolution digital data, a detrending surface based relic fluvial features floor....