Dr Pamela S Naden

Dr Pamela S Naden

Centre for Ecology & Hydrology
Maclean Building
Benson Lane
Crowmarsh Gifford
Wallingford
Oxfordshire
OX10 8BB
T: +44 (0)1491 838800
F: +44 (0)1491 692424
E-mail: Dr Pamela S Naden
 

Current work

As a Principal Research Scientist working primarily in the Water Programme, my current work focuses on physical processes relating to riverine ecosystems. The key areas of this work are:

  • the development of computational fluid dynamics to understand velocity and turbulence fields within rivers. Interests include the interaction with macrophytes as well as the application to fine sediment movement and deposition in lowland riverine environments. This has potential links with both water quality applications, ecological status and habitat requirements.
  • use of fluorescence to trace slurry-derived material through experimental plots and small headwater catchments. This has involved developments in both laboratory methods and parallel factor analysis. The work is of value in understanding diffuse pollution from intensive grassland farming systems.
  • suspended sediment in river systems including sediment targets; event-based sediment budgets and the routing of fine sediment through a river network; risk analysis with regard to the frequency, magnitude and duration of suspended solids concentrations which may be detrimental to aquatic ecosystems; and siltation.

I am currently Champion for Objective WA-2.1 within the Water Programme.

Research interests

  • instream fluid dynamic processes
  • influence of instream macrophytes on river flow
  • impact of fine sediment and siltation on river biota
  • catchment sediment dynamics
  • natural fluorescence as an indicator of agricultural pollution

Brief CV

  • 1997 to date: Principal Research Scientist in sediment dynamics and in-stream hydraulics
  • 1996-2008: Research into the impact of climate change on coloured dissolved organic matter from peat catchments (funding from Yorkshire Water and EU CLIME project)
  • 1993-1997: Project leader for the large-scale distributed catchment modelling component of the NERC-funded Land-Ocean Interaction Study (LOIS), focussing on water quality
  • 1991-1998: Development of large-scale catchment hydrological modelling in the context of climate change and general circulation models as part of the NERC-funded Terrestrial Initiative in Global Environmental Research (TIGER) initiative
  • 1988-1994: Research in UK flood estimation methods including peaks-over-threshold statistical methods and the inception of continuous simulation for flood estimation
  • 1980-1988. Lecturer, School of Geography, Leeds University

Selected publications

See also the NERC Open Research Archive.

Granger, S.J., Bol, R., Hawkins, J.M.B., White, S.M., Naden, P.S., Old, G.H., Marsh, J.K., Bilotta, G.S., Brazier, R.E., Macleod, C.J.A., Haygarth, P.M. (2011). Using artificial fluorescent particles as tracers of livestock wastes within an agricultural catchment. Science of the Total Environment, 409, 1095-1103.

Naden, P.S. (2010). The Fine-Sediment Cascade. In: Burt, T., Allison, R. (eds.) Sediment Cascades: an Integrated Approach. Wiley, 271-305.

Naden, P.S., Allott, N., Arvola, L., Järvinen, M., Jennings, E., Moore, K., Nic Aongusa, C., Pierson, D., Schneiderman, E. (2010). Modelling the impacts of climate change on dissolved organic carbon. In: George, G. (ed.) The Impact of Climate Change on European Lakes. Springer, 221-252. (Aquatic Ecology Series, 4).

Naden, P.S., Old, G.H., Eliot-Laize, C., Granger, S.J., Hawkins, J.M.B., Bol, R., Haygarth, P. (2010). Assessment of natural fluorescence as a tracer of diffuse agricultural pollution from slurry spreading on intensely-farmed grasslands. Water Research, 44, 1701-1712.

Granger, S.J., Hawkins, J.M.B., Bol, R., White, S.M., Naden, P., Old, G., Bilotta, G.S., Brazier, R.E., Macleod, C.J.A., Haygarth, P.M. (2010). High temporal resolution monitoring of multiple pollutant responses in drainage from an intensively managed grassland catchment caused by a summer storm. Water Air and Soil Pollution, 205, 377-393.

Crooks, S.M. and Naden, P.S. (2007). CLASSIC: a semi-distributed rainfall-runoff modelling system. Hydrology and Earth System Sciences, 11, 516-531

Naden, P.S., Rameshwaran, P., Mountford, O. and Robertson, C. (2006). The influence of macrophyte growth, typical of eutrophic conditions, on river flow velocities and turbulence production. Hydrological Processes, 20, 3915-3938.

Rameshwaran, P. and Naden, P.S. (2004). Modelling of turbulent flow in two-stage meandering channels. Proc. Inst. Civil Eng. Water Management, 157, 159-173.

Rameshwaran, P. and Naden, P.S. (2004). Three-dimensional modelling of free-surface variation in a meandering channel. Journal of Hydraulic Research, 42, 603-615.

Rameshwaran, P. and Naden, P.S. (2003). Three-dimensional numerical simulation of compound channel flows. Journal of Hydraulic Engineering (ASCE), 129, 645-652.

Smith, B.P.G., Naden, P.S., Leeks, G.J.L. and Wass, P.D. (2003). Characterising the fine sediment budget of the River Swale, Yorkshire, UK during the 1994 to 1995 winter season. Hydrobiologia, 494, 135-143.

Smith, B.P.G., Naden, P.S., Leeks, G.J.L. and Wass, P.D. (2003). The influence of storm events on fine sediment transport, erosion and deposition within the River Swale, Yorkshire, UK. Science of the Total Environment, 314/316, 451-474.

Watts, C.D., Naden, P.S., Cooper, D.M. and Gannion, B. (2003). Application of a regional procedure to assess the risk to fish from high sediment concentrations. Science of the Total Environment, 314/316, 551-565.