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 GLOWA Volta Project - Phase III

Sustainable water use under changing land use patterns, rainfall reliability and water demand in the Volta basin.

The project is financed by the Federal Ministry for Education and Research. Additional funding comes from the Ministry od Science and Research of North Rhine-Estphalia. 


The overall objective of the GLOWA Volta Project is the analysis of the physical and socio-economic determinants of the hydrological cycle inthe face of global climate change. Based on this, the project aims at the establishment of a scientifically sound Decision Support System for water resource management.

Further information can be found on http://www.glowa-volta.de/



The contribution of the IMK-IFU is

- Coupling Strategy for Joint Atmospheric-Hydrological Simulations
- Climate Change Impact on Water Availability
- Operational Weather Forecast (NWP), Model Based Water Balance Information System
- Assimilation of satellite derived land surface properties in hydrological modelling
- Propagation of precipiation uncertainties in water balance estimations 
- Prediction of the rainy season’s onset using Linear Discriminant Analysis, Linear Regression
  Analysis and multi objective fuzzy-rule-based classification of weather patterns
- Drought Analysis based on a Clayton copula approach
- Identification of extreme weather patterns and frequency analysis of past and future climate



Jung, G., & Kunstmann, H. 2007. High-resolution Regional Climate Modelling for the Volta Basin of West Africa. Journal of Geophysical Research - Atmosphere, doi:10.1029/2006JD007951, 17 pages

Kunstmann, H., & Jung, G. 2003. Water Resources Systems - Water Availability and Global Change. In: Investigation of feedback mechanisms between soil moisture, Land use and precipitation in West Africa, vol. 280. IAHS Publications.

Kunstmann, H., Jung, G., Wagner, S., & Clottey, H. 2007. Integration of atmospheric sciences and hydrology for the development of decision support systems in sustainable water management. Physics and Chemistry of the Earth.

Laux, P., Kunstmann, H. & Bárdossy A. (2008): Predicting the Regional Onset of the Rainy Season in West Africa; International Journal of Climatology, Vol. 28, issue 3, pp. 329-342.

Laux, P., Kunstmann, H. & Bárdossy A. (2007): Linking the West African monsoon's onset with atmospheric circulation patterns. Quantification and Reduction of Predictive Uncertainty for Sustainable Water Resource Management. IAHS Publ. 313.

Laux, P., Wagner, A. Wagner, S., Kunstmann, H. & Bárdossy A. (2007): Modelling daily precipitation features in the Volta Basin in West Africa; (submitted to Int. Journal of

Neumann, R., Jung, G., Laux, P., & Kunstmann, H. 2007. Climate trends of temperature, precipitation and river discharge in the Volta Basin of West Africa. Journal of River Basin Management, 5(1), 17–30.

Wagner, S., Kunstmann, H., & Bárdossy, A. 2006. Model based distributed water balance monitoring of the White Volta catchment in West Africa through coupled meteorological-hydrological simulations. Advances in Geosciences, 9, 39–44.

Wagner, S., Kunstmann, H., & Bárdossy, A. 2007a. Uncertainties in water balance estimations due to scarce meteorological information: A case study for the White Volta catchment in West Africa. IAHS publication, 313, 86–97.

Wagner, S., Kunstmann, H., Bárdossy, A., Conrad, C., & Colditz, R. R. 2008. Water balance estimations of poorly gauged catchments in West Africa using dynamical downscaling of meteorological fields and remote sensing information. Physics and Chemistry of the Earth, doi:10.1016/j.pce.2008.04.002


Contact: Harald Kunstmann, Patrick Laux, Sven Wagner, Gerlinde Jung (now at IIA-CNR, Rende, Italy)