Impacts of climate change on water resources in idaho
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Impacts of Climate Change on Water Resources in Idaho. Prepared by Zion Klos PhD Student, College of Natural Resources [email protected] 920-883-8617 …feel free to e-mail or call me with questions!. Idaho ’ s climate is changing…. NCDC. Outline.

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Impacts of climate change on water resources in idaho

Impacts of Climate Change on Water Resources in Idaho

Prepared by Zion Klos

PhD Student,

College of Natural Resources

[email protected]

920-883-8617

…feel free to e-mail or call me with questions!


Idaho’s climate is changing…

NCDC


Outline
Outline

  • Observed (historic) and/or future predictions for changes in:

    • Precipitation

    • Snowpack

    • Streamflow

    • Stream temperature

    • Drought



Precipitation intensity
Precipitation Intensity

Analysis by Troy Magney


Precipitation future predictions
Precipitation: Future Predictions

Precipitation:

2090 - 2099

vs.

1990 - 1999

Salathé Jr, E P, R Steed, C F Mass, and P H Zahn. "A High-Resolution Climate Model for the US Pacific Northwest: Mesoscale Feedbacks and Local Responses to Climate Change." Journal of Climate 21, no. 21 (2008): doi:10.1175/2008JCLI2090.1.


Outline1
Outline

  • Observed (historic) and/or future predictions for changes in:

    • Precipitation

    • Snowpack

    • Streamflow

    • Stream temperature

    • Drought



April 1 st snowpack 1950 1997

= decrease

= increase

April 1st Snowpack1950-1997

Mote et al., 2005. Declining mountain snowpack in western N. America. Bull. Am. Met. Soc.


Benton spring snow course elev 1500 m 4920 ft
Benton Spring Snow Courseelev. 1500 m (4920 ft)

Analysis by Ryan Niemeyer




Outline2
Outline

  • Observed (historic) and/or future predictions for changes in:

    • Precipitation

    • Snowpack

    • Streamflow

    • Stream temperature

    • Drought


Statewide streamflow trends
Statewide Streamflow Trends

Unregulated streams with at

least 40 years of continuous

stream discharge information

- 25 stations (as of FY06)

Source of Funding

State/Federal COOP – 9

Corp of Engineers – 6

USGS NSIP – 4

Other Funding – 6

Discontinued in FY05 – 1

Courtesy of Greg Clark (USGS)



Onset of streamflow
Onset of Streamflow

Stewart, I T, D R Cayan, and M D Dettinger. "Changes Toward Earlier Streamflow Timing Across Western North America." Journal of Climate 18, no. 8 (2005): 1136-1155.


Midpoint of annual streamflow runoff

Earlier by 0-4 days (18 sites)

Earlier by 5-9 days (6 sites)

Earlier by 10 days or more (2 sites)

Midpoint of Annual Streamflow Runoff

Based on averagepre- and post-1980

data

Courtesy of Greg Clark (USGS)


Outline3
Outline

  • Observed (historic) and/or future predictions for changes in:

    • Precipitation

    • Snowpack

    • Streamflow

    • Stream temperature

    • Drought


Stream temperature
Stream Temperature

Analysis by Stephen Gillis


Outline4
Outline

  • Observed (historic) and/or future predictions for changes in:

    • Precipitation

    • Snowpack

    • Streamflow

    • Stream temperature

    • Drought


Drought:

conceptualized through the

Climatic Water Balance


Anyways, hope you’ll find this information useful! Also, apologies if it’s too much doom and gloom… But hey, who doesn't love some nice, warm weather!


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