Headward Erosion
Water
Erosion which occurs in the upstream end of the valley of a stream, causing it to lengthen its course in such a direction.
- — Service Hydrologist Reference Manual Glossary of Hydrologic Terms retrieved 2014-06-01
Weather
In hydrologic terms, erosion which occurs in the upstream end of the valley of a stream, causing it to lengthen its course in such a direction.