Teton River Valley, Montana  - mt124 
Additional Information 
Lisa Graumlich  Linsey Waggoner  Brian Peters  Chris Caruso             

Purpose of Collection: Climatology - Snowpack reconstruction

Reference: 
Pederson, G.T., S.T. Gray, C.A. Woodhouse, J.L. Betancourt, D.B. Fagre, 
J.S. Littell, E. Watson, B.H. Luckman, and L.J. Graumlich. 2011. 
The unusual nature of recent snowpack declines in the North American Cordillera. 
Sciencexpress, Published online 9 June 2011. 
DOI: 10.1126/science.1201570

COFECHA output: 



      Chronology file name   : MT124.CRN
      Measurement file name  : MT124.RWL
      Date checked           : 07JUN11
      Checked by             : B. Bauer
      Beginning year         : 1509
      Ending year            : 2001
      Principal investigators: Lisa Graumlich  Linsey Waggoner  Brian Peters  Chris Caruso     
      Site name              : Teton River Valley
      Site location          : Montana      
      Species information    : PSME DOUGLAS-FIR
      Latitude               :   4755
      Longitude              : -11244
      Elevation              : 1678M

      Series intercorrelation: 0.590
      Avg mean sensitivity   : 0.242
      Avg standard deviation : 0.349
      Avg autocorrelation    : 0.798
      Number dated series    : 46
      Segment length tested  : 50

      Number problem segments: 20
      Pct problem segments   : 4.08



 PART 5:  CORRELATION OF SERIES BY SEGMENTS: Teton River Valley                                    16:50  Tue 07 Jun 2011  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   1500 1525 1550 1575 1600 1625 1650 1675 1700 1725 1750 1775 1800 1825 1850 1875 1900 1925 1950 1975

                         1549 1574 1599 1624 1649 1674 1699 1724 1749 1774 1799 1824 1849 1874 1899 1924 1949 1974 1999 2024

 --- -------- ---------  ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----

   1 2TRV008A 1773 1946                                                     .46  .45  .65  .75  .76  .72  .66

   2 2TRV009B 1810 2000                                                               .42  .59  .40  .33  .58  .65  .70  .69

   3 2TRV024A 1790 1900                                                          .55  .61  .47  .43  .43

   4 2TRV024B 1691 1992                                      .43  .60  .45  .27A .36  .49  .58  .62  .64  .44  .47  .46

   5 2TRV031A 1773 1892                                                     .24B .23B .44  .71  .64

   6 2TRV031B 1700 2000                                           .49  .42  .36  .52  .65  .75  .61  .43  .43  .40  .55  .53

   7 2TRV033A 1609 1919                       .68  .62  .53  .63  .74  .56  .62  .70  .51  .47  .52  .53

   8 2TRV033B 1562 1886             .61  .69  .65  .74  .67  .62  .71  .65  .48  .47  .53  .69  .69

   9 2TRV034  1670 2000                                 .53  .58  .61  .54  .62  .70  .68  .59  .63  .68  .66  .37  .26A .23A

  10 2TRV036B 1720 1996                                           .75  .75  .73  .54  .63  .59  .58  .68  .55  .55  .76

  11 2TRV037A 1521 1985   .68  .66  .59  .52  .50  .64  .60  .62  .75  .73  .69  .70  .68  .53  .57  .71  .64  .58  .35

  12 2TRV037B 1729 1998                                                .78  .73  .75  .78  .57  .53  .74  .49  .34  .49

  13 2TRV038  1509 1622   .78  .79  .76  .77

  14 2TRV038C 1524 1623   .83  .83  .85  .78

  15 2TRV039  1805 1913                                                               .34  .48  .58  .62

  16 2TRV041  1698 2001                                      .42  .46  .41  .36  .55  .67  .73  .67  .52  .48  .33A .40  .39

  17 2TRV051A 1710 2000                                           .50  .54  .62  .65  .60  .53  .48  .49  .54  .68  .73  .73

  18 2TRV051B 1685 2000                                      .45  .53  .53  .62  .56  .54  .62  .63  .60  .57  .49  .41  .41

  19 2TRV052  1825 2000                                                                    .59  .44  .36  .55  .63  .64  .62

  20 2TRV053B 1867 2000                                                                         .70  .74  .70  .69  .56  .56

  21 2TRV062A 1700 2000                                           .51  .61  .46  .48  .71  .59  .50  .54  .48  .35  .24A .20A

  22 2TRV062B 1810 1925                                                               .62  .64  .51  .54  .54

  23 2TRV062C 1700 1929                                           .46  .55  .59  .53  .70  .53  .45  .67  .63

  24 2TRV076B 1840 2000                                                                    .50  .56  .44  .56  .65  .48  .45

  25 2TRV078A 1629 2000                            .71  .72  .64  .66  .68  .72  .72  .57  .62  .70  .68  .67  .68  .81  .81

  26 2TRV078B 1622 2000                       .64  .64  .74  .70  .80  .82  .72  .67  .61  .68  .70  .68  .76  .83  .84  .85

  27 2TRV079A 1592 2001                  .59  .56  .53  .58  .67  .69  .65  .63  .68  .66  .57  .60  .60  .60  .70  .47  .46

  28 2TRV079B 1600 1967                       .57  .62  .71  .71  .65  .56  .62  .64  .55  .52  .58  .79  .64  .62

  29 2TRV080A 1557 2000             .53  .58  .62  .48  .31A .32B .41  .56  .70  .70  .62  .50  .62  .68  .64  .63  .64  .63

  30 2TRV081A 1526 1889        .53  .44  .48  .67  .68  .65  .78  .89  .84  .69  .59  .52  .35B .40B

  31 2TRV081B 1536 1795        .50  .47  .61  .72  .62  .61  .69  .78  .80  .73

  32 2TRV082A 1575 2000                  .54  .36  .56  .71  .65  .76  .61  .52  .75  .62  .57  .68  .66  .53  .55  .65  .64

  33 2TRV082B 1649 1835                            .73  .72  .67  .61  .54  .66  .64  .58

  34 2TRV084  1618 2001                       .43  .55  .53  .63  .56  .37  .45  .54  .47  .33B .39  .45  .60  .75  .62  .59

  35 2TRV110B 1709 2000                                           .61  .64  .47  .48  .58  .51  .60  .56  .48  .31B .26A .29A

  36 2TRV131A 1876 2000                                                                              .67  .34  .16B .49  .48

  37 2TRV131B 1842 2000                                                                    .57  .60  .59  .66  .68  .75  .74

  38 2TRV132A 1702 2000                                           .71  .74  .43  .36  .66  .63  .62  .64  .50  .50  .38B .37B

  39 2TRV132B 1789 2000                                                          .66  .72  .56  .64  .78  .70  .68  .74  .74

  40 2TRV133A 1646 2000                            .71  .70  .68  .81  .84  .78  .76  .69  .70  .79  .80  .74  .66  .68  .67

  41 2TRV133B 1647 2000                            .67  .71  .72  .79  .79  .77  .77  .72  .74  .78  .70  .71  .70  .72  .72

  42 2TRV134  1660 1925                                 .61  .63  .61  .60  .68  .75  .58  .49  .59  .69  .69

  43 2TRV135  1740 2000                                                .43  .39  .47  .60  .65  .57  .41  .41  .58  .61  .58

  44 2TRV136  1834 2000                                                                    .48  .61  .61  .64  .65  .67  .66

  45 2TRV137  1712 2000                                           .50  .52  .56  .72  .65  .67  .65  .60  .66  .65  .72  .71

  46 2TRV140  1715 1839                                           .51  .47  .57  .46  .40B

 Av segment correlation   .76  .66  .61  .62  .58  .63  .62  .61  .64  .61  .57  .59  .60  .58  .59  .61  .58  .56  .57  .57

 PART 7:  DESCRIPTIVE STATISTICS: Teton River Valley                                               16:50  Tue 07 Jun 2011  Page  10

 -----------------------------------------------------------------------------------------------------------------------------------



                                                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 2TRV008A 1773 1946    174      7      0    .646    .42   1.69   .340   .881   .272   2.60   .382  -.067   1

   2 2TRV009B 1810 2000    191      8      0    .534   1.12   3.22   .500   .609   .272   2.91   .506  -.023   1

   3 2TRV024A 1790 1900    111      5      0    .482    .36    .83   .165   .676   .278   2.73   .516   .028   1

   4 2TRV024B 1691 1992    302     12      1    .462    .63   4.30   .555   .835   .274   2.76   .475   .006   1

   5 2TRV031A 1773 1892    120      5      2    .489   1.03   2.52   .442   .803   .179   2.66   .307   .020   1

   6 2TRV031B 1700 2000    301     12      0    .519    .41    .99   .174   .770   .229   2.66   .451  -.010   1

   7 2TRV033A 1609 1919    311     12      0    .585    .58   2.59   .400   .888   .205   2.79   .419  -.016   1

   8 2TRV033B 1562 1886    325     13      0    .620    .84   3.73   .641   .898   .219   2.70   .367   .000   1

   9 2TRV034  1670 2000    331     14      2    .568    .64   2.18   .388   .866   .226   2.75   .413  -.005   2

  10 2TRV036B 1720 1996    277     11      0    .652    .36    .97   .175   .690   .310   2.69   .403   .017   1

  11 2TRV037A 1521 1985    465     19      0    .605    .60   2.40   .338   .865   .216   2.60   .295  -.018   1

  12 2TRV037B 1729 1998    270     10      0    .624    .37    .97   .198   .848   .240   2.77   .499  -.038   1

  13 2TRV038  1509 1622    114      4      0    .776    .85   1.46   .237   .701   .175   2.57   .424  -.007   1

  14 2TRV038C 1524 1623    100      4      0    .806    .85   1.50   .239   .735   .156   2.67   .439   .017   2

  15 2TRV039  1805 1913    109      4      0    .497    .43    .98   .182   .784   .226   2.78   .456  -.072   1

  16 2TRV041  1698 2001    304     13      1    .510    .41    .99   .175   .748   .240   2.70   .462  -.004   1

  17 2TRV051A 1710 2000    291     12      0    .585    .56   1.55   .242   .792   .205   2.82   .420  -.011   1

  18 2TRV051B 1685 2000    316     13      0    .535    .72   1.48   .236   .621   .223   2.62   .375  -.022   1

  19 2TRV052  1825 2000    176      7      0    .537    .71   1.53   .273   .658   .262   2.63   .338  -.001   1

  20 2TRV053B 1867 2000    134      6      0    .636    .56   1.11   .138   .424   .211   2.59   .378  -.044   1

  21 2TRV062A 1700 2000    301     12      2    .470    .67   1.89   .227   .589   .225   2.77   .385   .001   1

  22 2TRV062B 1810 1925    116      5      0    .563    .55   2.37   .278   .609   .263   2.91   .483  -.028   1

  23 2TRV062C 1700 1929    230      9      0    .549    .37   1.02   .152   .588   .266   2.76   .479   .016   1

  24 2TRV076B 1840 2000    161      7      0    .516    .82   1.95   .289   .795   .160   2.53   .352   .007   1

  25 2TRV078A 1629 2000    372     15      0    .690    .57   2.04   .333   .868   .245   2.53   .297  -.023   1

  26 2TRV078B 1622 2000    379     16      0    .723    .58   1.89   .382   .894   .233   2.68   .334  -.022   1

  27 2TRV079A 1592 2001    410     17      0    .594    .62   3.89   .428   .856   .231   2.65   .372  -.014   1

  28 2TRV079B 1600 1967    368     14      0    .621    .67   2.47   .377   .834   .226   2.61   .353  -.010   1

  29 2TRV080A 1557 2000    444     18      2    .544    .58   3.51   .493   .882   .247   2.71   .315  -.016   1

  30 2TRV081A 1526 1889    364     14      2    .589    .66   2.49   .497   .894   .231   2.76   .294   .010   1

  31 2TRV081B 1536 1795    260     10      0    .633    .80   2.67   .481   .888   .216   2.63   .315   .002   1

  32 2TRV082A 1575 2000    426     17      0    .604    .55   3.01   .338   .767   .243   2.57   .354  -.026   1

  33 2TRV082B 1649 1835    187      8      0    .634    .70   1.89   .301   .720   .216   2.83   .423  -.042   1

  34 2TRV084  1618 2001    384     16      1    .498    .67   2.87   .505   .940   .173   2.56   .404   .016   2

  35 2TRV110B 1709 2000    292     12      3    .486    .47   1.63   .273   .862   .241   2.63   .360  -.031   1

  36 2TRV131A 1876 2000    125      5      1    .455    .73   2.39   .324   .281   .383   2.82   .441  -.018   1

  37 2TRV131B 1842 2000    159      7      0    .659    .84   1.95   .433   .809   .244   2.74   .390  -.029   1

  38 2TRV132A 1702 2000    299     12      2    .530    .48   1.85   .329   .892   .255   2.53   .344  -.022   1

  39 2TRV132B 1789 2000    212      9      0    .684    .39   1.05   .162   .742   .231   2.67   .342   .013   1

  40 2TRV133A 1646 2000    355     15      0    .742    .50   2.24   .395   .884   .342   2.68   .365  -.001   1

  41 2TRV133B 1647 2000    354     15      0    .736    .50   1.94   .311   .826   .338   2.57   .335   .008   1

  42 2TRV134  1660 1925    266     11      0    .625    .52   2.08   .381   .887   .310   2.76   .338  -.052   1

  43 2TRV135  1740 2000    261     11      0    .513    .71   2.58   .394   .779   .220   2.85   .409  -.035   1

  44 2TRV136  1834 2000    167      7      0    .590   1.52   3.42   .625   .743   .231   2.67   .370  -.059   1

  45 2TRV137  1712 2000    289     12      0    .638    .77   2.99   .372   .804   .238   2.60   .392  -.004   1

  46 2TRV140  1715 1839    125      5      1    .457    .46   1.12   .225   .693   .284   2.75   .459   .010   1

 --- -------- ---------  -----  -----  -----   ------ -----  -----  -----  -----  -----  -----  -----  -----  --

 Total or mean:          12028    490     20    .590    .62   4.30   .349   .798   .242   2.91   .381  -.012

