| 1 | 1212 | WQCalculationMethod_Enum | Calculated based on theoretical water needs and theoretical consumption values |
| 2 | 1213 | WQCalculationMethod_Enum | Estimated based on established water-use coefficients and ancillary data |
| 3 | 1214 | WQCalculationMethod_Enum | Estimated based on representative indicators (e.g. % deviation from the theoretical streamflow regime as an indicator of water balance, water demand as an indicator of water abstraction, etc) |
| 4 | 1215 | WQCalculationMethod_Enum | For WEI+ which method has been used for estimation of renewable water resources: Option 1. RWR = ExIn + P - Eta - Snat Option 2. RWR = Outflow + (Abstraction - Return) - Sart |
| 5 | 1216 | WQCalculationMethod_Enum | Other method, not included in the list |
| 6 | 1328 | WQCalculationMethod_Enum | Water quantity use data not available |
| 7 | 1329 | WQCalculationMethod_Enum | Water quantity use not relevant or not significant |
| 8 | 1330 | WQCalculationMethod_Enum | Based on direct measurements / monitoring |
| 9 | 1331 | WQCalculationMethod_Enum | Assimilation and processing (e.g. aggregation, extrapolation, clipping, etc.) from statistical data at different spatial scale (e.g. NUTS, Country level). |
| 10 | 1332 | WQCalculationMethod_Enum | Based on local surveys and statistical sampling |
| 11 | 1333 | WQCalculationMethod_Enum | Based on process-based deterministic hydrological and water balance modelling |
| 12 | 1334 | WQCalculationMethod_Enum | Based on stochastic hydrological and water balance modelling |
| 13 | 1335 | WQCalculationMethod_Enum | Empirical modelling and/or proxy values (e.g. based on water-rights allocation and permits, average water production, water supply deliveries, data from wastewater treatment plans, etc) |
