The Urban Heat Island Effect in Atlanta, Georgia

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Presentation transcript:

The Urban Heat Island Effect in Atlanta, Georgia Justin Chaddick EAS 4480 Spring 2013

Sampling Sites Atlanta Eatonton

Sampling Sites

Sampling Frequency Daily Maximum and Minimum Values Sample Period: January 1st 2000 – December 16th 2010

Raw Daily Maximum Data Correlation Coefficient = 98.5

Raw Daily Minimum Data Correlation Coefficient = 95.0

Periodic Trends Maximum Minimum Period for min and max = 364 days

Histograms Kurtosis = 2.09 Kurtosis = 1.87 Kurtosis = 2.41

Plotting Histogram Data

Quantifying Atlanta Eatonton Days Hotter Max Temp 3436 523 Avg Amount Higher [F] 0.21 2.77 Days Hotter Min Temp 783 3157 4.88 0.39 Avg Max Temp [F] 72.1 74.7 Avg Min Temp [F] 53.9 49.5 Median Max Temp [F] 74.5 77 Median Min Temp [F] 56.1 50.5

Conclusions Atlanta is a urban heat island The urban heat island phenomenon is best seen through comparison of minimum temperature data Could be due to atmospheric mixing created by solar surface heating during daytime Increasing urban vegetation could help reduce heat island Lowering albedo Increasing evapotranspiration

References Data Sourced from: www.georgiaweather.net Maps from Google Earth