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the correlation of wet deposition inland and in coastal areas PowerPoint Presentation
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the correlation of wet deposition inland and in coastal areas

the correlation of wet deposition inland and in coastal areas

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the correlation of wet deposition inland and in coastal areas

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  1. the correlation of wet deposition inland and in coastal areas Pike County, Georgia Sapelo Island, Georgia Julian McAdams Spring 2009 Data Analysis EAS 4803

  2. introduction • Correlations between wet deposition species in Georgia, inland and on the coast. • Specific associations between Na and Cl, and NH4 and SO4…regressions. • F-test: the standard deviations of two normally distributed populations are equal. • T-distribution: Arises in the problem of estimating the mean of a normally distributed population when the sample size is small.

  3. correlation of each species between sites Correlation coefficients are in the legends. Example: coorCalcium=corrcoef(Ca1,Ca3)

  4. regression lines at both sites for na and cl • Strong correlation between Na and Cl at both sites. • Na and Cl concentrations at Sapelo are larger than Pike. • Regression lines overlap.

  5. regression lines at both sites for nh4 and so4 • Bad correlation between NH4 and SO4. • NH4 concentrations at Sapeloare smaller than Pike. • Regression lines overlap reduced major is different.

  6. F- test at both sites

  7. T- distributions at both sites

  8. conclusion • Correlations are strongest with Na and Cl. • Correlations between Ca, NO3, and NH4 are “better” than the other species. • Associated trends of species on each island are observed to be similar. • Sources of wet deposition at the coast are strongly influenced by the sea spray and salt marsh interactions.