Biogeochemistry of tempe town lake
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Biogeochemistry of Tempe Town Lake. Lauren Puglisi. Introduction To Tempe Town Lake. Map of Tempe Town Lake. Manmade lake Built for flood c ontrol and recreational p urposes Today, Tempe Town Lake is home to boating, fishing, biking, and more

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Biogeochemistry of Tempe Town Lake

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Biogeochemistry of tempe town lake

Biogeochemistry of Tempe Town Lake

Lauren Puglisi


Introduction to tempe town lake

Introduction To Tempe Town Lake

Map of Tempe Town Lake

  • Manmade lake

  • Built for flood control and recreational purposes

  • Today, Tempe Town Lake is home to boating, fishing, biking, and more

  • Tempe Town Lake is a good model for understanding larger reservoir systems, such as Lake Powell

Tempe Town Lake

http://www.kam-az.com/tempe%20town%20lake.jpg


Sampling tempe town lake

Sampling Tempe Town Lake

  • Objective: determine seasonal variations in the chemistry of Tempe Town Lake

  • Method: sample Tempe Town Lake twice a week

  • Test the samples for Dissolved Organic Carbons, pH, Dissolved Oxygen, Alkalinity, and Conductivity

Filtration System

Kelly and Hartnett


Dissolved organic carbon doc

Dissolved Organic Carbon (DOC)

  • Seasonal variations have been observed

  • DOC levels tend to “spike” during precipitation events

Dissolved Organic Carbon Concentrations


Conductivity

Conductivity

  • Decreases with rain events

  • Evaporation plays a role in conductivity levels


Dissolved oxygen

Dissolved Oxygen

  • Varies seasonally

  • Multiple factors appear to be involved


Biogeochemistry of tempe town lake

pH

  • Tends to remain fairly constant


Alkalinity

Alkalinity

  • Appears to be strongly influenced by temperature

  • Decreases when temperatures are cool, and increases when temperatures are warm


Recent weather events

Recent Weather Events

  • Increased Precipitation in January 2010

  • The increased rain fall and river flow necessitated the lowering of the inflatable dams

  • Conductivity Concentrations Decreased

  • Sampling was increased to investigate the effects of precipitation on the biogeochemistry of the lake.


Questions

Questions

http://www.phoenix-valley-real-estate.com/images/Tempe%20Waterfront%20Condos%20007.jpg


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