General terms:
* Flow: This is a broad term that encompasses any movement of water over a surface.
* Runoff: This specifically refers to the flow of water over land, typically after rain or snowmelt.
* Streamflow: This refers to the flow of water in a stream or river.
* Current: This is used for the flow of water in a larger body of water, such as an ocean or lake.
Specific types of flow:
* Laminar flow: Smooth, orderly flow where water moves in parallel layers without mixing.
* Turbulent flow: Chaotic flow where water moves in irregular patterns with mixing.
* Sheet flow: A thin layer of water flowing across a surface, usually over land.
Other terms:
* Velocity: The speed of water flow.
* Discharge: The volume of water flowing past a point in a given time.
The specific term used to describe the movement of water over a surface depends on the context and the specific characteristics of the flow.
