An integrated model for optimal reservoir operation for irrigation of multiple crops

Vedula, S and Kumar, Nagesh D (1996) An integrated model for optimal reservoir operation for irrigation of multiple crops. In: Water Resources Research, 32 (4). pp. 1101-1108.

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Abstract

An integratedm odel is developed,b asedo n seasonailn puts of reservoiri nflow and rainfall in the irrigated area, to determine the optimal reservoir release policies and irrigation allocationst o multiple crops.T he model is conceptuallym ade up of two modules. Module 1 is an intraseasonal allocation model to maximize the sum of relative yieldso f all crops,f or a givens tateo f the systemu, singl inear programming(L P). The module takes into account reservoir storage continuity, soil moisture balance, and crop root growthw ith time. Module 2 is a seasonaal llocationm odel to derive the steadys tate reservoiro peratingp olicyu sings tochastidc ynamicp rogramming(S DP). Reservoir storage, seasonal inflow, and seasonal rainfall are the state variables in the SDP. The objective in SDP is to maximize the expected sum of relative yields of all crops in a year.The resultso f module 1 and the transitionp robabilitieso f seasonailn flow and rainfall form the input for module 2. The use of seasonailn puts coupledw ith the LP-SDP solution strategy in the present formulation facilitates in relaxing the limitations of an earlier study,w hile affectinga dditionali mprovementsT. he model is applied to an existing reservoir in Karnataka State, India.

Item Type:	Journal Article
Publication:	Water Resources Research
Publisher:	American Geophysical Union
Additional Information:	Copyright of the article is belong to American Geophysical Union
Department/Centre:	Division of Mechanical Sciences > Civil Engineering
Date Deposited:	27 Sep 2013 05:02
Last Modified:	27 Sep 2013 05:04
URI:	http://eprints.iisc.ac.in/id/eprint/47465

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