Driftless Oaks Shake Rag Alley, Wisconsin - WI053
Additional Site Information
Evan Larson, Sara Allen, Chris Underwood 


Reference: 
Evan R. Larson, Sara A. Allen, Chris A. Underwood. 2020. 
The Driftless Oaks: A new network of tree-ring chronologies 
to improve regional perspectives of drought in the Upper Midwest, USA. 
Progress in Physical Geography, Vol. 45, Issue 3, pp. 375-406, June 2021. 
doi: 10.1177/0309133320960670

Keywords:
Drought, Driftless Area, North American Drought Atlas, Dendrochronology, crop yield, Iowa, Wisconsin

Funding Sources: 
University of Wisconsin Water Resources Institute,
University of Wisconsin - Platteville Pioneer Academic Center for Community Engangement WR13R003


COFECHA output:  


      Chronology file name   : WI053.CRN
      Measurement file name  : WI053.RWL
      Date checked           : 11AUG21
      Checked by             : B. Bauer
      Beginning year         : 1751
      Ending year            : 1853
      Principal investigators: E. Larson  S. Allen  C. Underwood                  
      Site name              : Driftless Oaks Shake Rag Alley
      Site location          : Wisconsin    
      Species information    : QUSP OAK
      Latitude               :   4252
      Longitude              : -09011
      Elevation              :  305M

      Series intercorrelation: 0.501
      Avg mean sensitivity   : 0.203
      Avg standard deviation : 0.362
      Avg autocorrelation    : 0.745
      Number dated series    : 4
      Segment length tested  : 50

      Number problem segments: 1
      Pct problem segments   : 10.00


 PART 5:  CORRELATION OF SERIES BY SEGMENTS: Shake Rag Alley                                       10:34  Wed 11 Aug 2021  Page   5
 -----------------------------------------------------------------------------------------------------------------------------------
 Correlations of  50-year dated segments, lagged  25 years
 Flags:  A = correlation under   .3281 but highest as dated;  B = correlation higher at other than dated position

 Seq Series  Time_span   1750 1775 1800
                         1799 1824 1849
 --- -------- ---------  ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
   1 SRAN10E  1766 1833   .46  .47  .64
   2 SRAN10W  1773 1829   .46  .50  .48
   3 SRAS10E  1751 1831   .60  .53  .54
   4 SRAS10W  1819 1853             .66B
 Av segment correlation   .51  .50  .58
 PART 7:  DESCRIPTIVE STATISTICS: Shake Rag Alley                                                  10:34  Wed 11 Aug 2021  Page   6
 -----------------------------------------------------------------------------------------------------------------------------------

                                                Corr   //-------- Unfiltered --------\\  //---- Filtered -----\\
                           No.    No.    No.    with   Mean   Max     Std   Auto   Mean   Max     Std   Auto  AR
 Seq Series   Interval   Years  Segmt  Flags   Master  msmt   msmt    dev   corr   sens  value    dev   corr  ()
 --- -------- ---------  -----  -----  -----   ------ -----  -----  -----  -----  -----  -----  -----  -----  --
   1 SRAN10E  1766 1833     68      3      0    .476    .81   3.90   .576   .788   .265   2.57   .440  -.120   1
   2 SRAN10W  1773 1829     57      3      0    .460    .57    .98   .166   .771   .156   2.44   .504   .063   1
   3 SRAS10E  1751 1831     81      3      0    .527    .89   2.41   .287   .716   .165   2.62   .515  -.084   1
   4 SRAS10W  1819 1853     35      1      1    .657    .78   2.13   .439   .690   .247   2.81   .586  -.255   1
 --- -------- ---------  -----  -----  -----   ------ -----  -----  -----  -----  -----  -----  -----  -----  --
 Total or mean:            241     10      1    .501    .78   3.90   .362   .745   .203   2.81   .502  -.084