Columbia/Snake Dam Conditions
Welcome
Historical TDG and river covariates
Forecast TDG
PitPH & TDG with Spill & Flow
Methods, Data and Interpretations
References and Resources
Explore, Analyze & Visualize Total Dissolved Gas and environmental conditions at Snake and Columbia river dams
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TDG and river environment
Day Range
Year Range
Site
BON
TDA
JDA
MCN
PRD
WAN
RIS
RRH
WEL
CHJ
IHR
LMN
LGS
LWG
Hourly data
Downstream site data lag (hours)
Download
Export displayed data to CSV file.
X-axis
Flow
Spill
Spill Fraction
TDG (WQM)
TDG (Forebay)
TDG (Model)
Day
Year
Temp. (Forebay)
Temp. (WQM)
TDG change (WQM - FB)
Temp. change (WQM - FB)
Y-axis
Flow
Spill
Spill Fraction
TDG (WQM)
TDG (Forebay)
TDG (Model)
Day
Year
Temp. (Forebay)
Temp. (WQM)
TDG change (WQM - FB)
Temp. change (WQM - FB)
Elevation Forebay
Values
Flow
Spill
Spill Fraction
TDG (WQM)
TDG (Forebay)
TDG (Model)
Day
Year
Temp. (Forebay)
Temp. (WQM)
TDG change (WQM - FB)
Temp. change (WQM - FB)
Elevation Forebay
Suggested # Value Levels
Filters
Under Development
No Spill Only
Remove No Spill
< MOP+1 ft.
< MOP+2 ft.
Low flow
Medium flow
High flow
Low TW elev.
Medium TW elev.
High TW elev.
Time-series within year as line
Filter develop:
Pit-tag obs
Multi-site
Multi-temporal
Click one end of a slider, then adjust with keyboard Left
and Right
arrows
On the plot,
click-and-drag an area to zoom in
and double-click to zoom out
TDG forecasting
Site
BON
TDA
JDA
MCN
PRD
WAN
RIS
RRH
WEL
CHJ
IHR
LMN
LGS
LWG
X-axis
Flow
Spill
Spill Fraction
TDG (Forebay)
Y-axis
Flow
Spill
Spill Fraction
TDG (Forebay)
TDG (Forebay)
Spill fraction
Flow
Levels
(Under Development)
Hourly data
Mask for Historical Observed
Up/Down data lag
Click Plot for a forecast and historic conditions
Download
Export the historical data selected to a CSV file.
Click one end of a slider, then adjust with keyboard Left
and Right
arrows
PitPH & TDG with Spill & Flow
Site
System
BON
TDA
JDA
MCN
IHR
LMN
LGS
LWG
Day Range
Clear
Daily average data only
Year Range
TDG model
Off
On
TDG% Monitor
Off
By Value
By Year
for Forebay TDG% range
TDG plotting
Values
Points
Forebay TDG%
PitPH Species
Chinook
Steelhead
PitPH model
Off
CSS
COMPASS
Difference
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and Right
arrows
TDG modeling
TDG schematic
Data sources
Interpretations
WQM distances
Statement
TDG Monitoring
Fish Passage Plan
COMPASS
CSS PitPH
Columbia Basin Research
School of Aquatic & Fishery Sciences
University of Washington
Questions? Requests? Contact:
web@cbr.washington.edu
Supported by Bonneville Power Administration