Domain decomposition and model integration - Computational River Dynamics - page 344

8.3.4 Application to Goodwin Creek Watershed

The integrated watershed-channel simulation was applied in the study of sediment
transport in the Goodwin Creek Experimental Watershed established in 1977 as
a prototype of the much larger Demonstrate Erosion Control (DEC) watersheds
in the US. The drainage area above the watershed outlet was 21.3 km 2 . Most of
the channels were ephemeral, with perennial flows occurring only in the lower
reaches of the watershed. The sediment transported in the channels ranged from silt
( < 0.062 mm) to sand to gravel ( < 65 mm). TOPAZ was used to delineate a network

Figure 8.15 Thalweg changes in the lower reach of Goodwin Creek.

Figure 8.16 Sediment yields at the outlet of Goodwin Creek Watershed.