Layer: Downstream Impact Markers

Explorer label: Flow measurements
Layer group: Hydrology and basin layers
Feature count: 4

Point markers carrying discharge, annual runoff, monsoon share, and impact notes for major systems.

Summary

This layer contains basin-scale downstream reference markers with discharge, annual runoff, monsoon-share, and impact-note fields. It is a compact map surface for inspecting hydrology context at major downstream systems.

What It Represents

These markers summarize basin-scale hydrology at strategic downstream reference points. They make the core numbers easier to inspect than a polygon alone: discharge, runoff, monsoon share, and short interpretive notes.

How To Read It

Use the markers to compare basins by flow scale and seasonality. They work best with basin polygons and downstream-system lines, because the marker gives a data point while the lines and polygons show spatial extent.

Coverage / Method

The layer covers 4 downstream marker features listed in Map Inventory. It packages selected basin-scale fields into point popups so the explorer can show hydrology context alongside basin polygons and downstream route layers.

Caveats

A single marker cannot represent all seasonal, annual, or sub-basin variation. Treat values as context for planning arguments, not as a substitute for station-level hydrological analysis.