Glossary
Document Actions
This is a glossary of creek and watershed terms used on this website and in CCWF publications.
-
TIN (Triangulated Irregular Network)
- A technique for representing topography in a GIS. The land surface is represented with a series of contiguous, non-overlapping triangles. The vertices of each triangle are data points with x, y, and z values; elevation values at these points are interpolated to create a continuous surface.
-
Terrace
- A raised bank of earth having vertical or sloping sides and a flat top.
-
Thalweg
- Deepest part of a creek
-
Toe
- The break in slope at the foot of a stream bank where the bank meets the bed. (Riley, Ann (1998). Restoring Streams in Cities: a guide for planners, policy makers and citizens. Island Press, Washington, D.C. Page 410).
-
Top of Bank
- Break in slope between the stream bank and the surrounding terrain (Riley, Ann and Mcdonald, Moira (1996). Urban Waterways Restoration Training Manual for Youth Service and Conservation Corps. Coalition to Restore Urban Waters Southwest Regional Office, Berkeley, CA. Gloss-169).
-
Topography
- The graphic representation of the surface features of a region on a map, indicating their relative positions and elevations.
-
Tree
- Any woody vegetation over 10 feet tall with a diameter of more than 2 inches (Fischer, Christina et. al. (1996). Vegetation Survey Protocol, Coyote Creek Riparian Station in Volunteer Monitoring Protocols: A reference guide for monitoring California’s rivers, streams and watersheds. San Francisco Estuary Institute, CA. Page 4).