WP-4: Establishing of databases and submodel testing and adaptation in the Oueme basin
Description of work
The idea is to transfer the integrated model with its submodels developed in the Neckar basin to a region with different climatic conditions as well as lower data availability. To that end, databases about water resources, water demand and land resources will be established in the same structure as done in the Neckar basin. A GIS environment will be used to store, organize, analyze and visualize the data. Then the available submodels HBV (surface water), MONERIS/QUALIE (water quality), EPIC (agricultural production model) and WEAP (water demand) will be tested under the changed conditions and if necessary adjusted. Due to the geological settings, groundwater flow models would be restricted to the alluvial aquifers of the river valleys and other small formations. The possibility of groundwater use and appplication of groundwater resources modelling will be evaluated. The errors with and without adjustment will be analyzed.
Based on primary and secondary data, the economics of households and agricultural production systems in relation to climate and land use will be studied to craete a database for the development of the economic valuation model. Here training in econometrics, data exploration, production function analysis and estimation of supply functions will be provided and a model to describe the behavior of economic agents in response to water supply will be tested. The idea is to use descriptive functional forms that can be included directly within the mesoscale hydrological model HBV. In adddition, valuation components will be appended to the HBV model, so as to price water at itís various locations. Again the submodels will be used for the quantification of landuse change impact on the surface water dynamics, originating from the economic scenarios as well as the response to different climate scenarios. As in the Neckar basin, an overall project database for the use of all project partners will be established.
Milestones and expected results