Irrigated area determination: a case study in the Province of San Juan,Argentina |
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| Authors: | Graciela Salinas de Salmuni Inés Velasco Mirta Fresina Alberto L Flores |
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| Institution: | (1) CONAE (Comisión Nacional de Actividades Espaciales), Paseo Colon 751, 1063 Buenos Aires, Argentina;(2) Departamento Ciencias de la Atmósfera y los Océanos, FCEyN-UBA, Buenos Aires, Argentina;(3) Departamento Ciencias Geológicas, FCEyN-UBA, Buenos Aires, Argentina |
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| Abstract: | Much of the central-western region of Argentina, where San Juan Province is located, experiences arid to semi-arid climatic
conditions with low average annual rainfall accompanied by substantial evapotranspiration. Consequently, a viable crop industry
depends to a large extent upon irrigation from major river systems. Increasing demand for water in the lower basin of the
San Juan River is emphasizing the need for more accurate estimates of water used for irrigation. Since the water demand for
a particular crop is very closely related to crop area, monitoring the area of crop under irrigation is considered a proxy
for the amount of water used. Landsat 5 imagery for the growing season, field data and aerial photographs were used to evaluate
crop area. |
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| Keywords: | Arid climate Artificial irrigation Crop estimation Landsat 5 imagery Remote sensing Resources management |
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