Layer: Origin / Control Callouts

Explorer label: River influence
Layer group: Hydrology and basin layers
Feature count: 8

Interpretive callouts for origin, control class, Nepal share, and downstream identity across the basin stack.

Summary

This layer contains origin and control callouts for reading the basin stack. It labels whether systems are Nepal-linked, shared, or outside Nepal-origin control and ties that shorthand to downstream identity.

What It Represents

This layer provides short interpretive labels for the hydrology map. It explains whether a system is Nepal-linked, shared, or outside Nepal-origin control, and it ties that classification to downstream names and basin shares.

How To Read It

Use callouts when presenting the map to someone who does not already know the river systems. They are designed to make the control logic visible: where Nepal is upstream, where it is only partly upstream, and where it is not upstream at all.

Coverage / Method

The layer covers 8 callout features listed in Map Inventory. It is an explorer-label layer built from origin, control-class, Nepal-share, and downstream-identity fields rather than legal or operational control data.

Caveats

Control class is analytical shorthand. It should not be read as legal authority, treaty entitlement, or operational control over downstream water infrastructure.