Return Flow

A dataset containing the proportion flows at tributary junction coming from natal watershed using October CALSIM II flows. These proportions are used to estimate straying in the CVPIA SIT Salmon Population Model.

return_flow

Format

dataframe with 31 rows and 83 variables:

watershed

31 CVPIA watersheds

date

CALSIM II date

retQ

proportion of flow at tributary junction from natal watershed in October

Source

• Data Wrangling: Sadie Gill sgill@flowwest.com

• Node Selection: Mark Tompkins mtompkins@flowwest.com and Mike Urkov mike.urkov@gmail.com

• CALSIM Model Output: Michael Wright mwright@usbr.gov

Details

The return flow proportion is calculated using the average October flow in each watershed divided by the average October flow of the tributary it flows into for each year of the simulation. These tributary relationships are described in detail below.

Flow into Upper-mid Sacramento River:

• Upper Sacramento River

• Antelope Creek

• Battle Creek

• Bear Creek

• Big Chico Creek

• Butte Creek

• Clear Creek

• Cottonwood Creek

• Cow Creek

• Deer Creek

• Elder Creek

• Mill Creek

• Paynes Creek

• Stony Creek

• Thomes Creek

Flow into Feather River:

• Bear River

• Yuba River

Flow into Lower-mid Sacramento River:

• Feather River

Flow into Lower Sacramento River:

• American River

Flow into San Joaquin River:

• Merced River

• Tuolumne River

• Stanislaus River

The Mokulumne River, Calaveras River, and Cosumnes River are assigened 100%.

CALSIM II schematic