Conventional blue water scarcity indicators suffer from four weaknesses: they measure water withdrawal instead of consumptive water use, they compare water use with actual runoff rather than natural (undepleted) runoff, they ignore environmental flow requirements and they evaluate scarcity on an annual rather than a monthly time scale. In the current study, these shortcomings are solved by defining blue water scarcity as the ratio of blue water footprint to blue water availability – where the latter is taken as natural runoff minus environmental flow requirement – and by estimating all underlying variables on a monthly basis.
Technology Partners: MimirTech
Links:
[1] http://admin.indiaenvironmentportal.org.in/reports-documents/global-water-scarcity-monthly-blue-water-footprint-compared-blue-water
[2] http://admin.indiaenvironmentportal.org.in/category/author/ay-hoekstra
[3] http://admin.indiaenvironmentportal.org.in/category/author/mm-mekonnen
[4] http://admin.indiaenvironmentportal.org.in/category/publisher/unesco-ihe-institute-water-education
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-resources
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/river-basin
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/asia
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/global
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/india
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-supply
[11] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-management
