1. Watersheds ESI 2002 Another fine animated Sinex production
ESI Sinex

2. A map of streams in an area

3. N Major stream in watershed Drainage divide high spot or ridge
What is general streamflow direction? Any water flowing north?

4. Drainage Divide
Runoff to the west
Runoff to the east
Looking north up ridge

5. Major streams in watershed
headwaters
Watershed boundary
headwaters
Tributary to major stream
mouth
main channel
mouth

6. N
Area of collection of precipitation

7. N
Watershed
subwatershed
Even smaller subwatershed

8. Nested watersheds airshed watershed Watershed is like a funnel
Container such as Chesapeake Bay

9. Watershed and Airshed of Chesapeake Bay