A named list 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. Each component of the list contains a dataset with output from a different Calsim II BiOp run:

  • biop_2008_2009: output from the 2008-2009 Calsim II BiOp run.

  • biop_itp_2018_2019: output from the 2018-2019 Calsim II BiOp run.

  • calsim_run_of_river: output from the Calsim Run of River run.

proportion_flow_natal

Format

a named list where each component contains a 31 by 22 matrix (watersheds by years 1979-2000):

Source

Calculated using flows_cfs

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