Influência da escolha do mês inicial na determinação da operação ótima do açude piranhas para práticas de irrigação.

Abstract

This work is concerned with the optimal operation planning of a reservoir s water resources use. This study is related to the Piranhas reservoir, located in the Piancó river basin at the semi arid region of the Paraíba state. A non linear optimization model, whose objective function is the net profit attained from irrigation, has been used. Different scenarios for the starting month has been used. Average values for climatic, hydrologic and agricultural data has been used. The attained results has shown to exist a high influence of the conditions of starting operation month on the selection of irrigated areas and their net profits, obtaining discrepancies in the values up to 67%. Such results show the nonlinear nature of the problem.