Tillamook County, Oregon

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Tillamook County, Oregon

• Land of Cheese, Trees, and Ocean Breeze
• Jennifer Bulmanski for GEOG6525
• Dr. Esra Ozdenerol

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Can we quantitatively prove that Tillamook lives
up to its reputation?

• ArcMap shape files
• U.S. Census SF-3, variable P51., Sex by Industry
  by Class of Worker for the Employed Population 16
  and Over.
• Location Quotient makes it easy to compare data
  to a national standard.

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What percentage of the Workforce is devoted to
Agriculture?

• It sounds like a large number, but
• Really doesnt tell us anything unless we compare
  to a state or national rate of agricultural
  employment.

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What problems are there with this analysis?

• Location Quotient has no confidence interval. Is
  it possible that statistically some of the LQs
  could be equal to one?
• Is the map at the proper aggregate level? Will
  maps created at a different hierarchal level give
  the same results? (MAUP)

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How can these problems be solved?

• Development of a confidence interval for Location
  Quotients. (Moineddin 2003)
• Calculation of Diversity Index (D) and
  Dissimilarity Index (H). Decomposition analysis.
  (Wong 2003)

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How can we use this data?

• Marketing, Health and other uses.
• Spearmans Rank correlation coefficient.
• Black Box techniques becoming available for
  ease of use. (Zhao 2004)
• Compare many demographic variables to a customer,
  patient, person at risk profile for sample
  population.

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References

• ESRI GIS and mapping software. Company
  homepage. 26 Jan. 2004. http//www.esri.com/
• U.S. Census Bureau, United States Department of
  Commerce. Government homepage.
  http//www.census.gov/
• Moineddin, Rahim, Joseph Beyene, and Eleanor
  Boyle. On the Location Quotient Confidence
  Interval. Geographical Analysis. 35.3 (2003)
  249-256.
• Tillamook Chamber of Commerce. Chamber of
  Commerce homepage. 2003. 28 Jan. 2004.
  http//www.tillamookchamber.org/ .
• Wong, David W. S. Spatial Decomposition of
  Segretation Indices A Framework Toward
  Measuring Segregation at Multiple Levels.
  Geographical Analysis. 35.3 (2003) 179-194.
• Zhao, Lihua. Integrating rank correlation
  techniques with GIS for marketing analysis.
  GeoComputation 2000. 24 Jan. 2004
  http//www.geocomputation.org/2000/GC053/Gc053.htm