Managing the Interrelationships of Watersheds and Water Supplies: The Zero Sum Water Allocation Model© 2002 GEFA

2003 ◽  
Author(s):  
Joel Cowan ◽  
Andrew Chou ◽  
Robert Bocarro ◽  
David Sample
Keyword(s):  
Water Allocation ◽  
Water Supplies ◽  
Allocation Model ◽  
Zero Sum ◽  
Water Allocation Model

Design of water allocation model: efficiency and risk aspects

2005 ◽  
Vol 5 (3-4) ◽  
pp. 9-16
Author(s):  
C. Kim ◽  
D. Han
Keyword(s):  
Water Allocation ◽  
Primary Objective ◽  
Allocation Model ◽  
Proportional Allocation ◽  
Model Efficiency ◽  
Service Sectors ◽  
Expected Benefits ◽  
Water Allocation Model ◽  
Allocation Methods

The primary objective of this study is to improve the methodology for water allocation focused on efficiency and risk aspects. To attain the primary objective, this study sets up an objective function to maximize social expected benefits, and considers three types of allocation methods. Three types of allocation methods are optimal, proportional, and fixed allocation between regions and service sectors. The results of case study area shows that the fixed allocation method is preferred to the proportional allocation in most cases except that the variance of flow is small with respect to efficiency. Also, efficient and less-risky allocation is simultaneously obtained in some cases, while efficiency and risk show the relation of trade-off in other cases.

scholarly journals Development of a Hydrologic and Water Allocation Model to Assess Water Availability in the Sabor River Basin (Portugal)

2019 ◽  
Vol 16 (13) ◽  
pp. 2419 ◽  
Author(s):  
Regina Maria Bessa Santos ◽  
Luís Filipe Sanches Fernandes ◽  
Rui Manuel Vitor Cortes ◽  
Fernando António Leal Pacheco
Keyword(s):  
Water Availability ◽  
Water Demand ◽  
Water Allocation ◽  
Olive Grove ◽  
Domestic Consumption ◽  
Allocation Model ◽  
Historical View ◽  
Time Period ◽  
Annual Water ◽  
Water Allocation Model

The Sabor River basin is a large basin (3170 km2) located in the northeast of Portugal and used mostly for agroforestry. One problem this basin faces is a lack of water during the dry season, when there is a higher demand for water to irrigate crops. To solve this problem, the Portuguese government created a National Irrigation Program to finance new irrigation areas and improve existing ones. Consequently, it is necessary to evaluate the past and future water availability for agricultural and domestic consumption in the basin. This was done through the development of a hydrological and water allocation model. The Soil and Water Assessment Tool (SWAT) was used to model the hydrological processes that took place in the catchment between 1960 and 2008. The MIKE HYDRO Basin was used to simulate water allocation (irrigation and domestic consumption) in a historical view and under two scenarios. The historical view used the time period 1960–2008, and the two scenarios used the same time period but with an increase in the irrigated area. The first scenario simulated the irrigation of the total irrigable area that exists in the basin. The second scenario simulated a 29% increase in the olive grove area and a 24% decrease in the resident population, according to the projection for 2060. The results show that, in the historical view, the average annual water demand deficit was 31% for domestic consumption and 70% for irrigation, which represent 1372 × 103 m3 and 94 × 106 m3 of water, respectively. In the two scenarios, the water demand deficit increased to 37% for domestic consumption and 77% for irrigation. In the first scenario, the average annual water demand deficit was 183 × 106 m3 of water for irrigation. In the second scenario, the average annual water demand deficit was 385 × 103 m3 of water for domestic consumption, and 106 × 106 m3 of water for irrigating the expanded olive grove area. These results demonstrate that Portuguese farmers can use our model as a decision support tool to determine how much water needs to be stored to meet the present and future water demand.

Impacts of water management options on flows in the Condamine River in Southern Queensland

2002 ◽  
Vol 45 (11) ◽  
pp. 233-240 ◽  
Author(s):  
J.W. Porter
Keyword(s):  
Water Management ◽  
Water Allocation ◽  
Open Water ◽  
Catchment Scale ◽  
Management Options ◽  
Allocation Model ◽  
Overland Flows ◽  
Use Efficiency ◽  
On Farm ◽  
Water Allocation Model

This paper examines the implications for river flows of a number of water practices and potential management options in the alluvial plains of the Upper Condamine River. It is an intensively cultivated area where irrigation is limited by the availability of water resources. The practice of capturing overland flows was investigated by the development of a model that simulates the performance of clusters of offstream storages up to sub-catchment scale. Management options examined included improvement to on-farm water use efficiency, the suppression of evaporation from open water storages, increasing the depth of those storages, decreasing their number, and improved tailwater return from irrigated land. Impacts of management options were analysed using a catchment scale water allocation model.

Optimal water allocation model based on satisfaction and economic benefits

2013 ◽  
Vol 7 (4) ◽  
pp. 363 ◽  
Author(s):  
Leena Divakar ◽  
Mukand Singh Babel ◽  
Sylvain R. Perret ◽  
Ashim Das Gupta
Keyword(s):  
Water Allocation ◽  
Economic Benefits ◽  
Allocation Model ◽  
Model Based ◽  
Optimal Water Allocation ◽  
Water Allocation Model
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