Data Description

Gridded Data for:
Green, P.A., Vörösmarty, C.J., Harrison, I., Farrell, T., Sáenz, L., Fekete, B.M. 2015. Freshwater ecosystem services supporting humans: Pivoting from water crisis to water solutions. Global Environmental Change, Volume 34, September 2015, Pages 108–118.

All mapped data is gridded at 30-minute latitudeXlongitude grid cell resolution in GEOGRAPHIC coordinate system WGS84. Data is provided in flat ascii grid format with header information as follows:
ncols = number of columns
nrows = number of rows
xllcorner = lower left x-coordinate
yllcorner = lower left y-coorditane
cellsize = grid cell size
NODATA_value = nodata value

Gridded data is described in the section below with reference to map figures in the manuscript.

Datasets:
FPIh_Fig1a.asc
Fig. 1A. Freshwater provisioning index serving downstream human populations (FPIh) representing the number of downstream users supported by upstream water source area. Units downstream people / km2.

IncidentHWS_Category.asc (1=LOW, 2=MODERATE, 3=HIGH)
FPIh_IncidentHWS-LOW_Fig1b-blue.asc
FPIh_IncidentHWS-MOD_Fig1b-yellow.asc
FPIh_IncidentHWS-HIGH_Fig1b-red.asc
Fig. 1B. FPIh under Incident Human Water Security Threat. Seperate grids are provided for FPIh under Low (LOW), Moderate (MOD) and High (HIGH) Incident Threat. Units downstream people / km2.

ResidualHWS_Category.asc (1=LOW, 2=MODERATE, 3=HIGH)
FPIh_ResidualHWS-LOW_Fig1c-blue.asc
FPIh_ResidualHWS-MOD_Fig1c-yellow.asc
FPIh_ResidualHWS-HIGH_Fig1c-red.asc
Fig. 1C. FPIh under Residual Human Water Security Threat. Seperate grids are provided for FPIh under Low (LOW), Moderate (MOD) and High (HIGH) Residual Threat. Units downstream people / km2.

Threat_Development_State_Category.asc (1=stay under persistent High threat, 2=transition to High threat due to limited infrastructure investments, 3=improve from High to Low/Moderate threat as a result of investments in water infrastructure, 4=maintain relative health under Low/Moderate threat)
FPIh_ThreatDevState-StaysHigh_Fig4-red.asc
FPIh_ThreatDevState-TOHigh_Fig4-orange.asc
FPIh_ThreatDevState-TOLowMod_Fig4-green.asc
FPIh_ThreatDevState-StaysLowMod_Fig4-blue.asc
Fig. 4. Data for four threat development states where HWS threat on freshwater provisions supporting downstream users stay under persistent High threat (FPIh_ThreatDevState-StaysHigh_Fig4-red), transition to High threat due to limited infrastructure investments (FPIh_ThreatDevState-TOHigh_Fig4-orange), improve from High to Low/Moderate threat as a result of investments in water infrastructure (FPIh_ThreatDevState-TOLowMod_Fig4-green), or maintain relative health under Low/Moderate threat (FPIh_ThreatDevState-StaysLowMod_Fig4-blue). Seperate grids are provided for the four threat development states listed above. Units downstream people / km2.

Supplementary data:
GridCell_Area_km2.asc
Area in 30-minute grid cells. Units km2/gridcell.

AdjustedHWS_Category.asc (1=LOW, 2=MODERATE, 3=HIGH)
FPIh_AdjustedHWS-LOW_SI-FigA2-blue.asc
FPIh_AdjustedHWS-MOD_SI-FigA2-yellow.asc
FPIh_AdjustedHWS-HIGH_SI-FigA2-red.asc
SI Fig. A-2. FPIh under Adjusted Human Water Secutiry Threat. Seperate grids are provided for FPIh under Low (LOW), Moderate (MOD) and High (HIGH) Adjusted Threat. Units downstream people / km2.

 

Banner image: Lake Zurich, Switzerland [photo courtesy of Darlene Dube].