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Integrated Methodology for Estimating Water Use in Mediterranean Agricultural Areas
Laboratory of Remote Sensing and GIS, School of Agriculture, Aristotle University of Thessaloniki, Univ. Box 259, Thessaloniki 54124, Greece
Hellenic Ministry of Rural Development and Food, Directorate of Water Reclamation and Soil-Water Resources Planning, Serafi 60 & Liosion, Athens 10445, Greece
Laboratory of Applied Soil Science, School of Agriculture, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
* Author to whom correspondence should be addressed.
Received: 20 May 2009; in revised form: 10 July 2009 / Accepted: 3 August 2009 / Published: 20 August 2009
Abstract: Agricultural use is by far the largest consumer of fresh water worldwide, especially in the Mediterranean, where it has reached unsustainable levels, thus posing a serious threat to water resources. Having a good estimate of the water used in an agricultural area would help water managers create incentives for water savings at the farmer and basin level, and meet the demands of the European Water Framework Directive. This work presents an integrated methodology for estimating water use in Mediterranean agricultural areas. It is based on well established methods of estimating the actual evapotranspiration through surface energy fluxes, customized for better performance under the Mediterranean conditions: small parcel sizes, detailed crop pattern, and lack of necessary data. The methodology has been tested and validated on the agricultural plain of the river Strimonas (Greece) using a time series of Terra MODIS and Landsat 5 TM satellite images, and used to produce a seasonal water use map at a high spatial resolution. Finally, a tool has been designed to implement the methodology with a user-friendly interface, in order to facilitate its operational use.
Keywords: water; irrigation; surface energy fluxes; remote sensing
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Alexandridis, T.K.; Cherif, I.; Chemin, Y.; Silleos, G.N.; Stavrinos, E.; Zalidis, G.C. Integrated Methodology for Estimating Water Use in Mediterranean Agricultural Areas. Remote Sens. 2009, 1, 445-465.
Alexandridis TK, Cherif I, Chemin Y, Silleos GN, Stavrinos E, Zalidis GC. Integrated Methodology for Estimating Water Use in Mediterranean Agricultural Areas. Remote Sensing. 2009; 1(3):445-465.
Alexandridis, Thomas K.; Cherif, Ines; Chemin, Yann; Silleos, George N.; Stavrinos, Eleftherios; Zalidis, George C. 2009. "Integrated Methodology for Estimating Water Use in Mediterranean Agricultural Areas." Remote Sens. 1, no. 3: 445-465.