Surface Water Flow Trends in the Nation's Streams and Rivers
![Screenshot showing national lowest annual 7-day average streamflow trends from 1941-2015](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/USGS_SWFlowTrends_full.jpg?itok=CbxslgdH)
Detailed Description
Changes in streamflow conditions can affect infrastructure, water supply, and ecosystems. The IWAAs Surface Water Flow Trends mapper provides access to information about long-term changes in low flows, mean flows, and peak flows. View national trends for the last 100, 75, or 50 years, or calculate trend values for a custom time period at an individual site.
Sources/Usage
Public Domain.