Suitability of SWAT Model for Sediment Yields Modelling in the Eastern Africa - Advances in Data, Methods, Models and Their Applications in Geoscience - page 281

i. Move from a rather “lumped calibration” on data at the outlet to a more distributed
calibration by using internal gauging data for both flow, sediments and rainfalls. This
can also be achieved through using higher resolution data, especially for DEM but also
the land use and soil maps;
ii. Improving the representation of important hydrological features, especially the water
ponds, wetlands/marsh or swamps;
iii. Improve the routing component of the model. In some cases the SWAT model
simulations indicated sediment storage in a river reach to be unlike the findings based
on other approaches.
It is important to continue efforts in applying SWAT in Eastern Africa. However, the
authors appeal to those who want to apply SWAT in their studies is not to apply it blindly.
They need to consult experience from previous studies in Eastern Africa.
5. Acknowledgements
This work was co-funded by The Norwegian Programme for Development, Research and
Education (NUFU) - Water Management in Pangani River Basin Tanzania Project at
University of Dar es Salaam, Nile Basin Capacity Building Network-River Engineering
Initiative, FRIEND/Nile based at UNESCO - Cairo Office in Cairo, Egypt and UNESCO-IHE
Partnership Research Fund (UPaRF) through Adaptation to Climate Change Impacts on the
Nile River Basin (ACCION) project. In addition, the authors wish to express their gratitude
to Mr. F. Mashingia, a PhD fellow at University of Dar es Salaam, for preparing study area
maps, as well as to anonymous reviewers, who helped to improve this chapter through their
thorough review
6. References
Abbaspour, K.C., Johnson, C.A., van Genuchten, M.T., (2004). Estimating uncertain flow and
transport parameters using a sequential uncertainty fitting procedure. Vadose Zone
J . 3, 1340-1352.
Abbaspour, K.C., Yang, J., Maximov, I., Siber, R., Bogner, K., Mieleitner, J., Zobrist, J.,
Srinivasan, R., (2007). Modelling of hydrology and water quality in the pre-
alpine/alpine Thur watershed using SWAT. J. Hydrol . 333, 413-430.
Abdelhamid, M.R., (2010). Sediment Transport Modelling in Simiyu Catchment of Lake
Victoria Basin, Tanzania. MSc Thesis WSE-HI.10-06. UNESCO-IHE, Institute for
Water Education, Netherlands.
Arnold, J.G., Williams, J.R., & Maidment, D.R., (1995). Continuous-time water and sediment-
routing model for large basins. Journal of Hydraulic Engineering, Vol. 121(2): pp. 171-
183.
Bagnold, R.A., (1977). Bedload transport in natural rivers. Water Resour. Res. 13:303-312.
Bathurst, J.C., (2002). Physically-based erosion and sediment yield modelling: the SHETRAN
concept . In: Wolfgang Summer and Desmond E.Walling (ed.), Modelling erosion,
sediment transport and sediment yield. IHP-VI Technical Documents in
Hydrology, No.60, pp47-68.
De Pauw, E. (1984). Soils, Physiography and Agro ecological zones of Tanzania Publication : Crop
monitoring and early warning systems Project GCPS/URT/047/NET. Ministry of