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The University of Southampton
Southampton Marine and Maritime Institute

Hydrological uncertainties in modelling karst hydrology and implications for palaeoclimate reconstructions Seminar

Origin: 
Geography and Environmental Science
Time:
16:00 - 17:00
Date:
11 January 2012
Venue:
Building 44 Room 2013

For more information regarding this seminar, please email Professor Tony Brown at A.Brown@soton.ac.uk .

Event details

Geography and Environment seminar

This seminar will explore the use of karst hydrology models to attribute the uncertainty in climatic reconstructions that arises specifically as a result of variable water routing. A monthly lumped parameter model is used to demonstrate the range of modelled drip water discharges possible from a single climate input. A refinement of the model, including precipitation δ18O, is then used to determine the range in drip water and stalagmite δ 18O for selected sites with contrasting climates in Europe, Africa and Australia. For actual climate (monthly mean temperature; monthly total precipitation; monthly mean precipitation δ 18O), model simulations of karst groundwater storage and drip-water δ 18O are compared to demonstrate the potential of the approach to model different climate regimes realistically. The seminar will conclude by reviewing the implications of the hydrological model for stalagmite δ 18O Quaternary palaeoclimate reconstructions over different timescales and sampling resolutions.

Speaker information

Chris Bradley, University of Birmingham. School of Geography, Earth and Environmental Sciences

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