Table 1 Models applied to link final consumption to regional water scarcity

From: Tracking grid-level freshwater boundary exceedance along global supply chains from consumption to impact

Indicators of regional water scarcity

Water availability models applied to evaluate regional water scarcity

Models that link final consumption to territorial water scarcity

Source

Spatial scale

Water availability model and setting for EFR

Spatial scale

Sectoral scale

Global trade model

Criticality ratio

National

Renewable water resources data from AQUASTAT

187 countries

26 sectors

EORA (MRIO)

Ref. 36

Watershed

Composite Runoff V1.0 database + 80% rule for EFR

27 European countries

163 sectors

EXIOBASE (MRIO)

Ref. 13

Watershed

WaterGAP2 model

48 countries

151 sectors

EXIOBASE (MRIO)

Ref. 14

RFB

0.5° grid cell

PCR-GLOBWB model

>71 countries

26 crop classes

Process analysis

Ref. 4

5 arcmin

Composite Runoff V1.0 database + 80% rule for EFR

>20 countries

26 crop classes

Process analysis

Ref. 7

5 arcmin

Composite Runoff V1.0 database + 80% rule for EFR

174 countries

146 crops and 1 industrial sector

Process analysis

Ref. 2

Watershed

WaterGAP2.2 model + single EFR method

>10 countries

Crop and non-crop consumption

Process analysis

Ref. 3

RFB

5 arcmin

15 global hydrological model

 + 5 EFR methods

245 countries

134 sectors

EMERGING (MRIO)

This study