Modelling scenarios to identify a combined sediment-water management strategy for the large reservoirs of the Tuyamuyun hydro-complex
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In: Irrigation and Drainage Systems, Vol. 25, No. 1, 03.2011, p. 1-18.
Research output: Journal contributions › Journal articles › Research › peer-review
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TY - JOUR
T1 - Modelling scenarios to identify a combined sediment-water management strategy for the large reservoirs of the Tuyamuyun hydro-complex
AU - Olsson, Oliver
AU - Sorokin, Anatoly
AU - Ikramova, Malika
PY - 2011/3
Y1 - 2011/3
N2 - This paper introduces a combined modelling approach using a simple water budget model (THC-model) and a 3D reservoir sedimentation model (MOHID Water) to adapt reservoir operation and visualise their effects on the sediment deposition. By this, an effective combined sediment-water management can be identified under semi-arid conditions for dry, median and wet years. Results are presented for the reservoirs of the Tuyamuyun Hydro-Complex (THC), which is located in the lower Amu Darya River. The determination of the actual and usable reservoir storage volume shows that siltation will significantly adversely affect the ability of the in-stream Channel Reservoir to regulate seasonal demand for both irrigation and municipal water supply. However, modelling scenarios results confirm the effectiveness of adapted operation rules for the THC reservoirs and show that the operation of large dams could be modified according to a combined sediment-water management. The experience gained during this study emphasizes the fact that the concept of a combined reservoir management of sediments as well as water can be an efficient measure to improve the sustainable long-term use of reservoirs and to contribute towards a safe water supply in water crisis regions.
AB - This paper introduces a combined modelling approach using a simple water budget model (THC-model) and a 3D reservoir sedimentation model (MOHID Water) to adapt reservoir operation and visualise their effects on the sediment deposition. By this, an effective combined sediment-water management can be identified under semi-arid conditions for dry, median and wet years. Results are presented for the reservoirs of the Tuyamuyun Hydro-Complex (THC), which is located in the lower Amu Darya River. The determination of the actual and usable reservoir storage volume shows that siltation will significantly adversely affect the ability of the in-stream Channel Reservoir to regulate seasonal demand for both irrigation and municipal water supply. However, modelling scenarios results confirm the effectiveness of adapted operation rules for the THC reservoirs and show that the operation of large dams could be modified according to a combined sediment-water management. The experience gained during this study emphasizes the fact that the concept of a combined reservoir management of sediments as well as water can be an efficient measure to improve the sustainable long-term use of reservoirs and to contribute towards a safe water supply in water crisis regions.
KW - Chemistry
KW - Wasserqualität
KW - Reservoir sedimentation
KW - Water supply
KW - Sediment water management
KW - Sediment modelling
KW - impact assessment
KW - amu darya
KW - central asia
KW - Construction engineering and architecture
KW - Modellierung
KW - Talsperren
KW - Sedimentmanagement
KW - Wassermanagement
KW - Sustainability Science
UR - http://www.scopus.com/inward/record.url?scp=79951854281&partnerID=8YFLogxK
U2 - 10.1007/s10795-011-9107-0
DO - 10.1007/s10795-011-9107-0
M3 - Journal articles
VL - 25
SP - 1
EP - 18
JO - Irrigation and Drainage Systems
JF - Irrigation and Drainage Systems
SN - 1573-0654
IS - 1
ER -