Table 1.

Locations delineating the stretch of coast that encompasses each subregion in the ‘natural_rivers.xlsx’ file and in Sutula et al. [5].

Subegion	Latitude (${}^{\circ }$N) Start	Longitude (${}^{\circ }$E) Start	Latitude (${}^{\circ }$N) End	Longitude (${}^{\circ }$E) End
Santa Barbara	34.3433	‒119.4218	34.4763	‒120.4858
Ventura	34.0205	‒118.7796	34.3433	‒119.4218
Santa Monica	33.7618	‒118.4228	34.0205	‒118.7796
San Pedro	33.6664	‒118.0175	33.7618	‒118.4228
Orange County	33.1906	‒117.3849	33.6664	‒118.0175
North San Diego	32.8136	‒117.2715	33.1906	‒117.3849
South San Diego	32.5300	‒117.1228	32.8136	‒117.2715