Buch, Englisch, 188 Seiten, Format (B × H): 168 mm x 236 mm, Gewicht: 340 g
Reihe: IHE Delft PhD Thesis Series
Buch, Englisch, 188 Seiten, Format (B × H): 168 mm x 236 mm, Gewicht: 340 g
Reihe: IHE Delft PhD Thesis Series
ISBN: 978-1-138-02792-3
Verlag: CRC Press
The Abay / Upper Blue Nile basin contributes the largest share of discharge to the river Nile. However, the basin exhibits large spatio-temporal variability in rainfall and runoff. Moreover, human activities also impact hydrological processes through intensive agriculture, overgrazing and deforestation, which substantially affect the basin hydrology. Thus, understanding hydrological processes and hydro-climatic variables at various spatio-temporal scales is essential for sustainable management of water resources in the region.
This research investigates the hydrology of the basin in depth using a range of methods at various spatio-temporal scales. The methods include long-term trend analysis of hydroclimatic variables, hydrologic responses analysis of land cover change, stable isotope techniques and process based rainfallrunoff modelling. A combination of field investigations with new measurements of precipitation, water levels and stable isotopes as well as existing hydro-climatic data offered gaining new insights about runoff generation processes in headwater catchments. The use of rainfall-runoff modelling in two meso-scale catchments of the Abay basin depict that a single model structure in a lumped way for the entire Abay basin cannot represent all the dominant hydrological processes. The results of the different approaches demonstrated the potential of the methods to better understand the basin hydrology in a data scarce region.
Autoren/Hrsg.
Fachgebiete
- Geowissenschaften Geographie | Raumplanung Geographie: Sachbuch, Reise
- Naturwissenschaften Biowissenschaften Biowissenschaften Ökologie
- Naturwissenschaften Biowissenschaften Biowissenschaften Biowissenschaften, Biologie: Sachbuch, Naturführer
- Technische Wissenschaften Bauingenieurwesen Bauingenieurwesen
- Geowissenschaften Umweltwissenschaften Umweltwissenschaften
Weitere Infos & Material
1. Introduction
2. Study Area; the Abay/Upper Blue Nile Basin
3. Hydro-climatic Trends in the Abay/Upper Blue Nile Basin
4. Water Balance Modelling of the Upper Blue Nile Catchments Using a Top-down Approach
5. Hydrologic Responses to Land Cover Change: the Case of Jedeb Meso-scale Catchment, Abay/Upper Blue Nile Basin
6. Characterisation of Stable Isotopes to Identify Residence Times and Runoff Components in Two Meso-scale Catchments in the Abay/Upper Blue Nile Catchments
7. Catchment Modelling Through the Use of Stable Isotope Data and Field Observations in the Chemoga and Jedeb Meso-scale Catchments, Abay/Upper Blue Nile Basin, Ethiopia
8. Conclusions and Recommendations