A5043624461- Hydrology and Watershed Management Studies
- Soil and Water Nutrient Dynamics
- Soil erosion and sediment transport
- Pesticide and Herbicide Environmental Studies
- Hydrology and Sediment Transport Processes
- Water-Energy-Food Nexus Studies
- Soil Carbon and Nitrogen Dynamics
- Flood Risk Assessment and Management
- Groundwater flow and contamination studies
- Water resources management and optimization
- Groundwater and Isotope Geochemistry
University of York
2016-2024
University of Liverpool
2016-2018
Phosphorus losses from land to water will be impacted by climate change and management for food production, with detrimental impacts on aquatic ecosystems. Here we use a unique combination of methods evaluate the impact projected future phosphorus transfers, assess what scale agricultural would needed mitigate these transfers. We combine novel high-frequency flux data three representative catchments across UK, new high-spatial resolution model, uncertainty estimates an ensemble simulations,...
We hypothesise that climate change, together with intensive agricultural systems, will increase the transfer of pollutants from land to water and impact on stream health. This study builds, for first time, an integrated assessment nutrient transfers, bringing a) high-frequency data outlets two surface water-dominated, headwater (~ 10 km2) catchments, b) event-by-event analysis c) concentration duration curves comparison EU Water Framework Directive quality targets, d) event...
There is a need to model and predict the transfer of phosphorus (P) from land water, but this challenging because large number complex physical biogeochemical processes involved. This study presents, for first time, 'limits acceptability' approach Generalized Likelihood Uncertainty Estimation (GLUE) framework Soil Water Assessment Tool (SWAT), in an application water quality problem Newby Beck catchment (12.5 km2), Cumbria, United Kingdom (UK). Using high frequency outlet data (discharge P),...
Abstract River discharge and nutrient measurements are subject to aleatory epistemic uncertainties. In this study, we present a novel method for estimating these uncertainties in colocated phosphorus (P) measurements. The “voting point”‐based constrains the derived stage‐discharge rating curve both on fit available gaugings catchment water balance. This helps reduce uncertainty beyond range of during out bank situations. example presented here, top 5% flows, shown be 139% using traditional...
Climate projections for the future indicate that United Kingdom will experience hotter, drier summers and warmer, wetter winters, bringing longer dry periods followed by rewetting. This result in changes phosphorus (P) mobilization patterns influence transfer of P from land to water. We tested hypothesis drying–rewetting affect amount soluble reactive (SRP) solubilized soil. Estimations period characteristics (duration temperature) under current predicted climate were determined using data...
Abstract. Excess nutrients in surface waters, such as phosphorus (P) from agriculture, result poor water quality, with adverse effects on ecological health and costs for remediation. However, understanding prediction of P transfers catchments have been limited by inadequate data over-parameterised models high uncertainty. We show that, temporal resolution data, we are able to identify simple dynamic that capture the load dynamics three contrasting agricultural UK. For a flashy catchment,...
Abstract Leaky barriers have become an important mitigation option within natural flood management to reduce downstream risk. Modelling is a key tool aid in the design of leaky barrier installations for mitigation, but there limited evidence about accuracy model representations system. Here, hydrological SWAT was combined with water routing that simulates multiple as permeable sluice gates. Storage behind individual quantified using dimensions and LIDAR topography. The applied series 27...
Abstract. Excess nutrients in surface waters, such as phosphorus (P) from agriculture, result poor water quality, with adverse effects on ecological health and costs for remediation. However, understanding prediction of P transfers catchments have been limited by inadequate data over-parameterised models high uncertainty. We show that, temporal resolution data, we are able to identify simple dynamic that capture the load dynamics three contrasting agricultural UK. For a flashy catchment,...