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Dr Jessica Davies

Senior Research Associate

Jessica Davies

LEC Building

Lancaster University

Bailrigg

Lancaster LA1 4YQ

United Kingdom

Tel: +44 1524 5 95986

Location: C83, Centre for Ecology and Hydrology

Research overview

Jessica is an environmental systems modeller. She develops computer simulations to explore and predict ecosystem processes. Her work crosses hydrology, biogeochemistry and soil sciences, and crosses scales: from in-depth water flows and solute movement through preferential features in slopes and catchments, up to broad-scale erosion and nutrient cycling applied to the whole of the UK for the last 200 years.

Her current research contributes to the Long-Term Large-Scale NERC Macronutrients project (ww.ltls.org.uk) where the aim is to account for observable terrestrial and aquatic pools, concentrations and fluxes of carbon, nitrogen and phosphorus (C, N, and P) in the UK using broad-brush integrated modelling analysis, and use this information to understand the future consequences for freshwater quality, greenhouse gas emissions, and aquatic and terrestrial biodiversity. 

Prior to this she worked with Professor Keith Beven developing the Multiple Interacting Pathways model – a novel approach to modelling water flow and transport using random particle tracking techniques. This model was applied to experimental data at the plot and catchment scale and was found to be a useful tool for testing process understanding, you can find out more about this work here:

http://onlinelibrary.wiley.com/doi/10.1002/wrcr.20377/abstract

Interests

Generally, she is interested in how the world works, how complexity shapes environmental and socio-economical systems, and how we can improve our understanding and management of our environment through systems modelling.

Specific current interests include:

  • Integrated effects of carbon, nitrogen and phosphorus cycles (see https://www.youtube.com/watch?v=c76x5yEkK_c)
  • Phosphorus weathering
  • The role of nutrient cycling in peatland function
  • Grazing as a driver of erosion
  • Non-linearities in hydrological response i.e. storage-discharge-travel time relationships

She is also interested in application of the following techniques and tools:

  • Model sensitivity and uncertainty analysis
  • Graphics Processing Unit (GPU) scientific programming
  • Data visualisation for communicating complex model outputs
  • Modern and classical control; state estimation; multi-agent systems; and model order reduction

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