Aqueduct Atlas – Upstream Protected Lands

Upstream protected land measures the percentage of total water supply that originates from protected ecosystems. Modified land use can affect the health of freshwater ecosystems and have severe downstream impacts on both water quality and quantity.

Reservoirs

This point layer (GRanD_Reservoirs_v1_1) represents the locations and attribute information of reservoirs contained in the GRanD database, version 1.1. For details please refer to the Technical Documentation.

The Global Reservoir and Dam (GRanD) database contains the world's largest dams and their associated reservoirs. The database consists of two shapefiles: a point (dam) and a polygon (reservoir) layer. For details please refer to the Technical Documentation which accompanies the data.

Rivers

River systems in the Greater Mekong Subregion. Attributes include: name of river, name of basin, name of sub-basin, Strahler number.

Aqueduct Atlas – Available Blue Water

Available blue water (Ba) is the total amount of water available to a catchment before any uses are satisfied. It is calculated as all water flowing into the catchment from upstream catchments minus upstream consumptive use plus runoff in the catchment.