@article{Le:2015:10.5194/hessd-12-7541-2015, author = {Le, Vine N and Butler, A and McIntyre, N and Jackson, C}, doi = {10.5194/hessd-12-7541-2015}, journal = {Hydrology and Earth System Sciences Discussions}, pages = {7541--7582}, title = {Diagnosing hydrological limitations of a Land Surface Model: Application of JULES to a deep-groundwater chalk basin}, url = {http://dx.doi.org/10.5194/hessd-12-7541-2015}, volume = {12}, year = {2015} }
TY - JOUR AB - Land Surface Models (LSMs) are prospective starting points to develop a global hyper-resolution model of the terrestrial water, energy and biogeochemical cycles. However, there are some fundamental limitations of LSMs related to how meaningfully hydrological fluxes and stores are represented. A diagnostic approach to model evaluation is taken here that exploits hydrological expert knowledge to detect LSM inadequacies through consideration of the major behavioural functions of a hydrological system: overall water balance, vertical water redistribution in the unsaturated zone, temporal water redistribution and spatial water redistribution over the catchment's groundwater and surface water systems. Three types of information are utilised to improve the model's hydrology: (a) observations, (b) information about expected response from regionalised data, and (c) information from an independent physics-based model. The study considers the JULES (Joint UK Land Environmental Simulator) LSM applied to a deep-groundwater chalk catchment in the UK. The diagnosed hydrological limitations and the proposed ways to address them are indicative of the challenges faced while transitioning to a global high resolution model of the water cycle. AU - Le,Vine N AU - Butler,A AU - McIntyre,N AU - Jackson,C DO - 10.5194/hessd-12-7541-2015 EP - 7582 PY - 2015/// SN - 1812-2116 SP - 7541 TI - Diagnosing hydrological limitations of a Land Surface Model: Application of JULES to a deep-groundwater chalk basin T2 - Hydrology and Earth System Sciences Discussions UR - http://dx.doi.org/10.5194/hessd-12-7541-2015 UR - http://hdl.handle.net/10044/1/25183 VL - 12 ER -
Transition to Zero Pollution is a flagship initiative of the Imperial's Academic Strategy, with a vision to realise a sustainable zero pollution future. The initiative brings researchers from different disciplines together to take a systems approach to tackling pollution in all its forms.