Articles | Volume 21, issue 1
https://doi.org/10.5194/hess-21-459-2017
https://doi.org/10.5194/hess-21-459-2017
Research article
 | 
25 Jan 2017
Research article |  | 25 Jan 2017

Towards a simple representation of chalk hydrology in land surface modelling

Mostaquimur Rahman and Rafael Rosolem

Data sets

MIDAS UK Hourly Rainfall Data. NCAS British Atmospheric Data Centre Met Office http://catalogue.ceda.ac.uk/uuid/bbd6916225e7475514e17fdbf11141c1

Global Agro-ecological Zones Assessment for Agriculture (GAEZ 2008) G. Fischer, F. Nachtergaele, S. Prieler, H. T. van Velthuizen, L. Verelst, and D. Wiberg http://www.fao.org/soils-portal/soil-survey/soil-maps-and-databases/harmonized-world-soil-database-v12/en/

Land Cover Map 2007 Centre for Ecology and Hydrology https://www.ceh.ac.uk/services/land-cover-map-2007

Climate hydrology and ecology research support system potential evapotranspiration dataset for Great Britain (1961-2015) [CHESS-PE] E. L. Robinson, E. Blyth, D. B. Clark, E. Comyn-Platt, J. Finch, and A. C. Rudd https://catalogue.ceh.ac.uk/documents/8baf805d-39ce-4dac-b224-c926ada353b7

39016 - Kennet at Theale National River Flow Archive http://nrfa.ceh.ac.uk/data/station/info/39016

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Short summary
Modelling water flow through chalk (a fine-grained porous medium traversed by fractures) is important for optimizing water resource management practices in the UK. However, efficient simulations of water movement through chalk are difficult due to the porous nature of chalk, creating high-velocity preferential flow paths. This paper describes a novel approach to representing chalk hydrology in land surface modelling for large-scale applications.