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1. Introduction Groundwater discharge is often an important contribution to streamflow

For a deep understanding you need to go below the surface: groundwater processes in conceptual hydrological models Sebastian Gnann, University of Bristol Supervisors: Dr Nicholas Howden, Dr Ross Woods. 1. Introduction Groundwater discharge is often an important contribution to streamflow

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1. Introduction Groundwater discharge is often an important contribution to streamflow

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  1. For a deep understanding you need to go below the surface: groundwater processes in conceptual hydrological models Sebastian Gnann, University of Bristol Supervisors: Dr Nicholas Howden, Dr Ross Woods

  2. 1. Introduction • Groundwater discharge is often an important contribution to streamflow • Groundwater is poorly represented in conceptual catchment-scale models 2 www.wisecdt.org

  3. How to account for temporal and spatial heterogeneity across various scales? 2. Open questions How are ground-water and river connected? How to deal with recharge? What types of aquifers are present? How can we use groundwater level observations to improve our models? How to handle inter-catchment groundwater flows or other abstractions like wells? Image: https://www.mdba.gov.au/discover-basin/water/discover-groundwater 3 www.wisecdt.org

  4. 3. Data, methodology and approaches • Basic equations for groundwater flow • Physical parameters or measurements Data • Integrate into existing models • Transfer to ungauged catchments Novel conceptual model structures or improved existing ones • Conceptual catchment scale laws • Novel catchment-scale parameters 4 www.wisecdt.org

  5. 4. Aim • Build improved yet still parsimonious enough models that better represent groundwater processes at the catchment scale 5 www.wisecdt.org

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