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A Digital Global Map of Irrigated Areas - An update for Latin America and Europe (Report N. 4)









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    Irrigation in Africa, Europe and Latin America - Update of the digital global map of irrigation areas to Version 4  2006
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    The first version of the Digital Global Map of Irrigated Areas was published in 1999. It consisted of a raster map with a resolution of 0.5° by 0.5° containing the percentage of the area that was equipped for irrigation around 1995, the so-called irrigation density. For Version 2, updated maps of Latin America, Europe, Africa and Oceania have been published in 2002. With the update to version 3 in 2005 the map for the whole globe was generated by using the same methodology. In the present report, the update to version 4 in 2006 is presented which incorporates improvements for the continents of Africa and Europe and for parts of Latin America as well.
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    A Digital Global Map of Irrigated Areas (Report N. 1) 1999
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    This report describes the Digital Global Map of Irrigated Areas developed for the purpose of global modelling of water use and crop production. The map depicts the percentage of each 0.5˚ by 0.5˚ cell that was equipped for irrigation in 1995. It was derived by combining information from large-scale maps with outlines of irrigated areas (one or more countries per map), FAO data on total irrigated area per country in 1995 and national data on total irrigated area per country, drainage basin or federal state. This documentation describes the dataset, the data and map sources as well as the map generation, and it discusses the data uncertainty. Publication details: Kassel World Water Series 1, Center for Environmental Systems Research, University of Kassel, Germany, 23 pp + Appendix.
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    Update of the Digital Global Map of Irrigation Areas (GMIA) to Version 5 2013
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    This report describes the update of the Digital Global Map of Irrigation Areas to version 5. For this update, the inventory of subnational irrigation statistics was updated with new information derived from national census surveys or irrigation sector studies. For the first time, the global map of irrigation areas also contains data layers on the percentage of area equipped for irrigation that is actually irrigated and on the source of irrigation water: groundwater, surface water, water from non-conventional sources.

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