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Review of the New York City Watershed Protection Program (2020) / Chapter Skim
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Appendix A: Technical Appendix on Trend Analysis
Pages 391-392

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From page 391...
... For the computation of trend slopes the analysis is conducted on the natural logs of the soil test phosphorus data. In most applications of the Mann-Kendall test or Regional Kendall test the slope estimate is typically calculated using the Theil-Sen slope estimator which is the median of all pairwise trend slopes computed in accordance with the calculation of the Kendall S statistic.
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From page 392...
... 2006. Regional Kendall test for trend.
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Key Terms

  • trend slopes
  • test phosphorus
  • regional kendall
  • kendall test
  • slopes computed

  • phosphorus values
  • pairwise trend
  • data pairs
  • versus slopes
  • slope estimator

  • natural logs
  • slope estimate
  • trend slope
  • data versus
  • pairwise slopes

  • actual data
  • overall regional
  • mean trend
  • phosphorus value
  • phosphorus minus

  • upward trend
  • tied soil
  • typically zero
  • downward trend
  • typically calculated

  • actually computed
  • natural logarithm
  • rus data
  • calculated using
  • data set


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