Columbia Basin Performance Measures

Sample Exposure Summary Table and Graph

Smolt Index Chinook-0 Query Parameters
Year2024
ProjectLower Granite
River ParameterTemperature Tailrace
Critical Temperature Tailrace Value18 °C
Calculate ExposureAbove Critical Value
River Parameter Data FillNo
Query Dates1/1 - 12/31
Total Run Period ( - )
Total Number of Fish Observed860783
Percent of Total Run Analyzed [Number Observed]100 % [860783]
Temperature Tailrace Exposure Index15.07 °C
Percent of Fish Exposed [Number Exposed]25.3 % [217780]
Number of Days Fish Exposed100
Middle 80% of Run Period ( - )
Number of Fish Observed695391
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [695391]
Temperature Tailrace Exposure Index15.14 °C
Percent of Fish Exposed [Number Exposed]20.5 % [142615]
Number of Days Fish Exposed16
Middle 50% of Run Period ( - )
Number of Fish Observed437434
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [437434]
Temperature Tailrace Exposure Index14.54 °C
Percent of Fish Exposed [Number Exposed]2.2 % [9702]
Number of Days Fish Exposed1
Run Dates
First Day of Run
5% of Run passed
10% of Run passed
50% of Run passed
90% of Run passed
95% of Run passed
Last Day of Run
Date(s) When Temperature Tailrace Crosses 18 °C
sample graph smolt
Smolt Index Chinook-0 2004 at Lower Granite daily exposure to Tailrace Water Temperature