The effect of wildfires on water quality from watershed systems of southern california
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The Effect of Wildfires on Water Quality from Watershed Systems of Southern California. Presented to CE 394K.3 GIS in Water Resources Carolina B. Mendez November 16, 2010. www.americanobserver.net. Wildfires. Increased erosion Mobilization of particle-bound contaminants

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The effect of wildfires on water quality from watershed systems of southern california
The Effect of Wildfires on Water Quality from Watershed Systems of Southern California

Presented to CE 394K.3 GIS in Water Resources

Carolina B. Mendez

November 16, 2010

www.americanobserver.net


Wildfires
Wildfires Systems of Southern California

  • Increased erosion

  • Mobilization of particle-bound

    contaminants

  • Post-fire: watershed recovers

  • Accumulation of mercury observed 1 year after fire; mobilization of mercury noted during second season.

    (Burke et al., 2010)

www.map.sdsu.edu


Objective
Objective Systems of Southern California

Use GIS tools to investigate the effect of wildfires on water quality from a watershed system in Southern California

  • USGS and USEPA data

  • CUAHSI HydroDesktop

  • ArcMap


Fires in San Diego County Systems of Southern California


Mercury

Water quality: 1910 to 2010 Systems of Southern California

Atrazine

Total Organic Carbon

Mercury

Copper

Lead

Arsenic


Water quality: 1960 to 2010 Systems of Southern California

Atrazine

Total Organic Carbon

Mercury

Copper

Lead

Arsenic


Water quality: 1980 to 2010 Systems of Southern California

Atrazine

Total Organic Carbon

Mercury

Copper

Lead

Arsenic


Water quality: 1990 to 2010 Systems of Southern California

Atrazine

Total Organic Carbon

Mercury

Copper

Lead

Arsenic


1980-2010 or 1990-2010 data set? Systems of Southern California

Total Organic Carbon

Mercury

1980-2010

1980-2010

1990-2010

1990-2010


Attribute tables Systems of Southern California

Fire Data

Water Quality Data


To-do List Systems of Southern California

  • Choose 1980-2010 or 1990-2010 data set

  • Locate watershed in San Diego County

  • Choose upstream and downstream gages

  • Correlate fire event to water quality data


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