A5011896122- Soil erosion and sediment transport
- Soil and Water Nutrient Dynamics
- Hydrology and Sediment Transport Processes
- Fish Ecology and Management Studies
- Hydrology and Watershed Management Studies
- Geology and Paleoclimatology Research
- Fire effects on ecosystems
- Mine drainage and remediation techniques
- Isotope Analysis in Ecology
- Aquatic Ecosystems and Phytoplankton Dynamics
- Tailings Management and Properties
- Environmental DNA in Biodiversity Studies
- Aquatic Invertebrate Ecology and Behavior
- Heavy metals in environment
- Water Quality and Resources Studies
- Toxic Organic Pollutants Impact
- Groundwater flow and contamination studies
- Coastal wetland ecosystem dynamics
- Geochemistry and Geologic Mapping
- Cryospheric studies and observations
- Aeolian processes and effects
- Freshwater macroinvertebrate diversity and ecology
- Mining and Resource Management
- Water Quality and Pollution Assessment
- Marine and coastal ecosystems
University of Northern British Columbia
2015-2024
University of Plymouth
2005-2006
Bedford Institute of Oceanography
1991
Abstract Fine‐grained sediment is a natural and essential component of river systems plays major role in the hydrological, geomorphological ecological functioning rivers. In many areas world, level anthropogenic activity such that fine‐grained fluxes have been, or are being, modified at magnitude rate cause profound, sometimes irreversible, changes way function. This paper examines how has caused significant quantity quality within systems, using examples of: land use change New Zealand;...
The effect of aboveground plant structure on near-bottom water flow and surficial sediment composition was evaluated in Lake Memphremagog (Quebec–Vermont) at 34 nearshore sites within three mixed-species macrophyte beds. Plant surface area accounted for 70% the variance reduction when changing depth removed. Relationships between clay content were evident each multispecies equations predicting within-bed concentrations not significantly different from a general among-bed model (r 2 = 0.74)...
This study examines the 1911–2010 variability and trends in annual streamflow at 139 sites across Fraser River Basin (FRB) of British Columbia (BC), Canada. The is largest Canadian waterway flowing to Pacific Ocean one world's greatest salmon rivers. Our analyses reveal high runoff rates low interannual alpine coastal rivers, most streams BC's interior. also rivers such as Adams, Chilko, Quesnel Stuart where principal runs occur. A trend analysis shows a spatially coherent signal with...
Abstract On 4 August 2014, a catastrophic breach of the Mount Polley mine tailings impoundment released ~25 M m 3 and water scoured an unknown quantity overburden into West Basin Quesnel Lake. We document Lake River observations for 2 months postspill. Breach inflows raised by 7.7 cm, equivalent to ~21 . The hypolimnion was modified immediately, exhibiting increased temperature (~5°C 6–7.5°C), conductivity (110 160 μS/cm), turbidity (<1 200–1000 nephelometric units (NTU)). Cooscillating...
Abstract Increasing complexity in human-environment interactions at multiple watershed scales presents major challenges to sediment source apportionment data acquisition and analysis. Herein, we present a step-change the application of Bayesian mixing models: Deconvolutional-MixSIAR (D-MIXSIAR) underpin sustainable management soil sediment. This new model approach allows users directly account for ‘structural hierarchy’ river basin terms sub-watershed distribution. It works by deconvoluting...
Abstract The Pacific Northwest of North America experienced four extreme hydrometeorological events during 2021 including intense cold waves in mid-February and late December, the record-setting June heat dome, catastrophic floods caused by two November atmospheric rivers. While synoptic-scale patterns terrestrial hydrological responses to these are well documented, scant information has been published on corresponding freshwater temperature responses. Here, we apply an observational...
Abstract Two controlled flow events were generated by releasing water from a reservoir into the Olewiger Bach, located near Trier, Germany. This release of bank‐full flows allowed an investigation fine sediment (<63 µm) mobilized channel storage. Both winter (November) and summer (June) event generated, each having very different antecedent conditions. The characteristics hydrographs associated transport indicated reverse hysteresis with more mass, but smaller grain sizes, moving on...
The use of sediment color as a fingerprint property to determine sources is an emerging technique that can provide rapid and inexpensive means investigating sources. present study aims test the feasibility properties apportion within South Tobacco Creek Watershed (74 km) in Manitoba, Canada. Suspended from 2009 2011 at six monitoring stations potential source samples along main stem creek were collected. Reflectance spectra sediments materials quantified using diffuse reflectance...
Understanding of upstream and downstream dynamics continental river basins demands attention to the influence important tributaries watersheds. This is exemplified by 47,200 km 2 Nechako Watershed, second largest sub-watershed British Columbia’s Fraser River Basin. Although (derived from Indigenous Dakelh word meaning “big river”) recognised for its ecological, societal cultural importance, this has often been overshadowed a focus on iconic River. paper examines insights purposeful response...
Abstract A range of factors that influence aggregate stability and soil erodibility were analysed for soils sampled from land managed under contrasting agricultural methods. These included: an organic farm; a conventional farm incorporated fertilizers; only used inorganic non‐cultivated control site. The aggregates compose the bulk structure (macroaggregates), mobilized by simulated rainfall surface runoff (microaggregates), evaluated in terms fragmentation fractal dimension, carbon content...
Flooding events can have significant impacts, in terms of both loss life and property damage. Analyzing floods to understand their processes patterns improves our ability predict when will occur. Under changing climate conditions, this become even more important. The utility an alternative approach conventional flood analysis was investigated a regulated river system with reservoir, the Nechako River Basin located British Columbia, Canada. Using 1955–2008 daily discharge measured on its...