Table 1 Global water security index definition and data sources
Criterion for water security | Indicators | Spatial and temporal scales | Definition and data sources |
|---|---|---|---|
Availability | WSI | Spatial resolution: 0.5°; median monthly values for 2010 | WSI is defined as the relation between the total water withdrawal and availability. Source: [11] |
Drought indicator (DI) | Spatial resolution: 0.5°; annual values for 2012 | DI is calculated using hydrological model PCR-GLOBWB. Source: [12] | |
Groundwater depletion | Spatial resolution: 0.5°; annual values for 2010 | Depletion is calculated using hydrological model PCR-GLOBWB. Source: [13] | |
Accessibility to services | Access to sanitation | Country-scale data for 2014 | Percentage of the population with access to sanitation. Source: [14] |
Access to drinking water | Country-scale data for 2014 | Percentage of the population with access to drinking water. Source: [14] | |
Safety and quality | Water quality index | Country-scale data for 2012 | Includes 4 water quality parameters. Source: [15] |
Flood frequency index | Country scale data for 1985–2003 | Flood frequency. Source: [16] | |
Management | World governance index | Country-scale data for 2010 | Includes voice and accountability, political stability and absence of violence, government effectiveness, regulatory quality, rule of law, and control of corruption. Source: [17] |
Transboundary legal framework | Basin-scale data for 2015 | Range of treaties per transboundary basin and their associated risks of conflict. Source: [18] | |
Transboundary hydropolitical tension | Basin-scale data for 2015 | Level of tension in transboundary basins and the associated risk levels. Source: [18] |