Freemont Lake, Wyoming  - wy045 
Additional Information 
Steve Gray  Greg Pederson  Tom Watson  Anthony Barnett          

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   : WY045.CRN
      Measurement file name  : WY045.RWL
      Date checked           : 07JUN11
      Checked by             : B. Bauer
      Beginning year         : 1507
      Ending year            : 2006
      Principal investigators: Steve Gray  Greg Pederson  Tom Watson  Anthony Barnett       
      Site name              : Freemont Lake
      Site location          : Wyoming     
      Species information    : PSME DOUGLAS-FIR
      Latitude               :   4258
      Longitude              : -10946
      Elevation              : 2430M

      Series intercorrelation: 0.766
      Avg mean sensitivity   : 0.312
      Avg standard deviation : 0.546
      Avg autocorrelation    : 0.699
      Number dated series    : 70
      Segment length tested  : 50

      Number problem segments: 1
      Pct problem segments   : 0.12



 PART 5:  CORRELATION OF SERIES BY SEGMENTS: Freemont lake                                         16:40  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 FME 032  1882 2006                                                                              .59  .72  .74  .79  .79

   2 FME 041  1774 2006                                                     .84  .83  .80  .85  .63  .61  .79  .75  .78  .82

   3 FME 242  1763 2006                                                     .71  .81  .81  .84  .78  .80  .86  .85  .83  .83

   4 FME 212  1644 2004                            .72  .77  .88  .89  .85  .88  .84  .77  .84  .86  .81  .83  .89  .88  .88

   5 FME 172  1769 2006                                                     .79  .88  .78  .82  .81  .79  .92  .88  .83  .83

   6 FME 082  1664 2006                                 .75  .84  .85  .82  .89  .89  .89  .90  .78  .77  .80  .79  .87  .91

   7 FME 192  1748 2006                                                .74  .73  .57  .47  .55  .68  .54  .48  .67  .74  .70

   8 FME 071  1728 2006                                                .68  .76  .80  .73  .66  .46  .47  .62  .56  .67  .71

   9 FME 262  1772 2006                                                     .76  .75  .79  .89  .88  .85  .87  .83  .65  .64

  10 FME 162  1771 2006                                                     .84  .84  .82  .87  .88  .84  .84  .85  .87  .88

  11 FME 072  1724 2006                                           .70  .72  .81  .84  .66  .67  .67  .70  .75  .66  .59  .63

  12 FME 151  1705 2006                                           .81  .79  .82  .85  .84  .91  .82  .76  .81  .80  .75  .74

  13 FME 141  1790 2006                                                          .40  .47  .59  .61  .55  .61  .58  .42  .42

  14 FME 261  1800 2006                                                               .77  .88  .89  .85  .90  .89  .84  .82

  15 FME 021  1781 2006                                                          .74  .72  .79  .56  .54  .69  .70  .76  .73

  16 FME 062  1578 2005                  .66  .81  .85  .79  .74  .66  .73  .73  .76  .83  .85  .78  .75  .78  .78  .79  .73

  17 FME 152  1715 2006                                           .79  .78  .81  .85  .83  .87  .77  .73  .84  .71  .64  .62

  18 FME 051  1688 2006                                      .70  .50  .49  .83  .88  .81  .83  .73  .68  .65  .57  .73  .78

  19 FME 101  1730 2006                                                .55  .75  .68  .59  .71  .63  .55  .61  .49  .44  .46

  20 FME 102  1695 2006                                      .42  .63  .73  .62  .50  .59  .74  .70  .64  .72  .57  .52  .56

  21 FME 201  1672 2006                                 .80  .80  .82  .81  .87  .93  .92  .89  .87  .88  .90  .90  .89  .89

  22 FME 202  1672 2006                                 .79  .79  .74  .63  .68  .81  .85  .87  .83  .84  .87  .91  .89  .88

  23 FME 272  1728 2006                                                .43  .63  .58  .68  .82  .90  .80  .78  .85  .86  .85

  24 FME 292  1673 2006                                 .78  .76  .72  .70  .54  .61  .86  .80  .71  .70  .69  .79  .86  .85

  25 FME 232  1758 1957                                                     .90  .90  .64  .59  .72  .62  .54  .66

  26 FME 129  1877 2006                                                                              .57  .88  .76  .71  .73

  27 FME 142  1830 2006                                                                    .71  .70  .75  .78  .75  .69  .71

  28 FME 052  1669 2006                                 .63  .77  .58  .64  .87  .85  .75  .82  .89  .84  .71  .75  .83  .83

  29 FME 091  1699 2006                                      .47  .47  .52  .72  .81  .81  .82  .78  .80  .85  .83  .84  .83

  30 FME 271  1780 2006                                                          .69  .67  .88  .92  .86  .84  .79  .84  .83

  31 FME 022  1777 2006                                                          .68  .66  .70  .58  .55  .62  .58  .54  .52

  32 FME 171  1758 2006                                                     .80  .89  .87  .90  .93  .88  .85  .83  .86  .86

  33 FME 031  1909 2006                                                                                   .65  .67  .82  .79

  34 FME 251  1686 1984                                      .78  .82  .84  .81  .77  .72  .72  .83  .79  .67  .69  .59

  35 FME 282  1750 2006                                                     .51  .70  .71  .75  .74  .63  .49  .61  .64  .63

  36 FME 081  1668 2006                                 .86  .86  .86  .84  .84  .79  .78  .85  .63  .56  .65  .74  .87  .87

  37 FME 111  1672 2006                                 .78  .78  .90  .85  .83  .85  .85  .89  .80  .77  .84  .88  .89  .87

  38 FME 293  1648 2006                            .75  .79  .79  .73  .66  .65  .75  .87  .84  .77  .76  .84  .89  .87  .86

  39 FME 301  1558 2006             .52  .37  .56  .74  .73  .53  .60  .70  .87  .92  .91  .94  .94  .91  .91  .93  .89  .88

  40 FME 302  1649 2006                            .74  .74  .65  .78  .80  .87  .92  .90  .91  .91  .90  .91  .92  .92  .90

  41 FME 061  1578 2005                  .54  .71  .74  .68  .77  .73  .60  .67  .80  .85  .90  .80  .74  .81  .79  .80  .73

  42 FME 191  1763 2006                                                     .77  .72  .62  .65  .72  .64  .61  .64  .62  .59

  43 FME 211  1719 2006                                           .88  .81  .86  .88  .81  .87  .86  .83  .86  .90  .89  .88

  44 FME 042  1775 2006                                                          .71  .82  .85  .45  .39  .80  .76  .80  .82

  45 FME 291  1688 2006                                      .83  .75  .75  .73  .74  .68  .70  .75  .73  .83  .84  .85  .84

  46 FME 161  1799 2006                                                          .75  .75  .82  .86  .86  .83  .82  .81  .84

  47 FME 132  1811 2006                                                               .77  .87  .75  .71  .81  .83  .85  .86

  48 FME 189  1886 2006                                                                              .66  .71  .54  .54  .53

  49 FME 131  1800 2006                                                               .75  .85  .73  .74  .84  .81  .79  .79

  50 FME 231  1729 1929                                                .62  .84  .89  .71  .73  .82  .72  .73

  51 FME 281  1793 2006                                                          .75  .62  .59  .63  .56  .41B .46  .63  .64

  52 FME 241  1795 2006                                                          .81  .85  .85  .72  .75  .77  .76  .81  .81

  53 FME 092  1707 2006                                           .49  .58  .79  .87  .85  .87  .81  .79  .84  .84  .85  .84

  54 FME 112  1669 2006                                 .85  .83  .84  .77  .78  .83  .85  .89  .80  .76  .79  .84  .80  .75

  55 FME 252  1664 2006                                 .54  .54  .89  .83  .81  .84  .87  .87  .88  .86  .89  .86  .76  .78

  56 FME 011  1507 2006   .82  .81  .62  .60  .80  .81  .78  .80  .87  .77  .77  .81  .69  .73  .68  .69  .83  .76  .69  .67

  57 FME 012  1522 2006   .84  .84  .84  .72  .76  .84  .81  .84  .89  .87  .84  .80  .72  .72  .76  .78  .82  .80  .66  .65

  58 FMT 031  1675 2006                                      .76  .83  .83  .86  .87  .73  .79  .88  .88  .81  .85  .90  .91

  59 FMT 061  1656 2006                                 .80  .83  .86  .86  .88  .86  .82  .85  .89  .91  .88  .87  .85  .85

  60 FMT 022  1714 2006                                           .80  .83  .95  .90  .81  .86  .89  .83  .83  .91  .91  .91

  61 FMT 062  1603 2006                       .65  .77  .79  .80  .83  .83  .87  .87  .80  .78  .79  .84  .87  .89  .88  .88

  62 FMT 032  1681 2006                                      .86  .81  .86  .90  .88  .72  .78  .86  .88  .83  .86  .89  .88

  63 FMT 059  1703 2006                                           .78  .79  .85  .87  .85  .78  .75  .84  .84  .73  .73  .74

  64 FMT 041  1685 2006                                      .74  .72  .87  .90  .90  .82  .83  .88  .80  .81  .87  .80  .80

  65 FMT 011  1705 2006                                           .77  .81  .85  .84  .83  .86  .86  .84  .89  .91  .93  .93

  66 FMT 012  1697 2006                                      .83  .82  .85  .91  .89  .86  .91  .90  .76  .77  .89  .92  .92

  67 FMT 021  1731 2006                                                .87  .87  .79  .72  .84  .88  .80  .81  .82  .83  .82

  68 FMT 052  1750 1979                                                     .72  .74  .72  .71  .78  .70  .70  .72  .55

  69 FMT 013  1690 2006                                      .87  .82  .84  .90  .86  .79  .84  .77  .63  .78  .81  .77  .77

  70 FMT 051  1695 2006                                      .78  .78  .84  .86  .84  .81  .87  .72  .72  .86  .80  .78  .77

 Av segment correlation   .83  .83  .66  .58  .72  .77  .76  .75  .76  .75  .80  .80  .77  .81  .78  .74  .78  .78  .77  .78

 PART 7:  DESCRIPTIVE STATISTICS: Freemont lake                                                    16:40  Tue 07 Jun 2011  Page  11

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



                                                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 FME 032  1882 2006    125      5      0    .705   1.89   4.08   .660   .631   .247   2.49   .359  -.031   1

   2 FME 041  1774 2006    233     10      0    .775    .92   2.34   .431   .709   .292   2.50   .300  -.055   1

   3 FME 242  1763 2006    244     10      0    .796   1.03   2.79   .531   .573   .395   2.57   .425  -.016   2

   4 FME 212  1644 2004    361     15      0    .834   1.08   4.40   .597   .743   .364   2.54   .339  -.041   1

   5 FME 172  1769 2006    238     10      0    .816   1.58   3.82   .718   .757   .276   2.55   .415  -.062   1

   6 FME 082  1664 2006    343     14      0    .832   1.02   4.75   .679   .822   .285   2.64   .305  -.072   1

   7 FME 192  1748 2006    259     11      0    .626   1.19   2.69   .458   .725   .224   2.57   .369  -.028   1

   8 FME 071  1728 2006    279     11      0    .662    .83   2.86   .439   .754   .251   2.44   .240  -.019   1

   9 FME 262  1772 2006    235     10      0    .773   1.16   2.37   .475   .560   .324   2.52   .290  -.046   1

  10 FME 162  1771 2006    236     10      0    .853   1.40   4.19   .619   .656   .298   2.80   .504  -.030   1

  11 FME 072  1724 2006    283     12      0    .690    .79   2.66   .358   .681   .282   2.45   .278  -.039   2

  12 FME 151  1705 2006    302     12      0    .794   1.12   3.31   .592   .570   .417   2.61   .403  -.062   1

  13 FME 141  1790 2006    217      9      0    .503   1.59   3.87   .672   .804   .210   2.58   .373   .000   1

  14 FME 261  1800 2006    207      8      0    .834   1.50   3.88   .707   .720   .287   2.58   .419  -.062   1

  15 FME 021  1781 2006    226      9      0    .692   1.42   2.88   .449   .685   .203   2.60   .361  -.010   1

  16 FME 062  1578 2005    428     17      0    .731    .49   2.39   .306   .760   .348   2.63   .315  -.024   1

  17 FME 152  1715 2006    292     12      0    .781    .95   3.39   .489   .512   .403   2.86   .471  -.027   1

  18 FME 051  1688 2006    319     13      0    .717    .91   2.68   .448   .689   .303   2.46   .302  -.036   2

  19 FME 101  1730 2006    277     11      0    .578    .93   3.19   .466   .768   .277   2.58   .377  -.038   1

  20 FME 102  1695 2006    312     13      0    .628   1.15   5.03   .814   .775   .282   2.49   .291  -.068   1

  21 FME 201  1672 2006    335     14      0    .867   1.09   2.80   .485   .538   .361   2.63   .454  -.022   2

  22 FME 202  1672 2006    335     14      0    .805   1.21   3.23   .626   .636   .379   2.52   .318  -.042   1

  23 FME 272  1728 2006    279     11      0    .721   1.39   3.64   .655   .713   .285   2.70   .430  -.052   1

  24 FME 292  1673 2006    334     14      0    .734    .84   2.77   .446   .667   .345   2.40   .267  -.042   1

  25 FME 232  1758 1957    200      8      0    .720   1.43   3.43   .507   .636   .225   2.68   .387  -.065   1

  26 FME 129  1877 2006    130      5      0    .695   2.11   5.33   .875   .673   .271   2.67   .439  -.044   1

  27 FME 142  1830 2006    177      7      0    .725   2.30   4.59   .699   .672   .194   2.72   .486   .004   1

  28 FME 052  1669 2006    338     14      0    .761   1.06   2.87   .563   .721   .318   2.75   .442  -.033   1

  29 FME 091  1699 2006    308     13      0    .745   1.15   9.17   .935   .754   .344   2.92   .383  -.043   1

  30 FME 271  1780 2006    227      9      0    .815   1.19   2.79   .547   .773   .248   2.70   .380  -.060   1

  31 FME 022  1777 2006    230      9      0    .619   1.51   4.26   .564   .743   .224   2.61   .397  -.052   2

  32 FME 171  1758 2006    249     10      0    .853   1.56   3.88   .815   .831   .259   2.58   .379  -.037   1

  33 FME 031  1909 2006     98      4      0    .736   2.11   3.67   .622   .600   .212   2.63   .475   .016   1

  34 FME 251  1686 1984    299     12      0    .750    .71   2.69   .375   .724   .286   2.81   .420  -.038   1

  35 FME 282  1750 2006    257     10      0    .604   1.34   3.16   .569   .794   .196   2.48   .290  -.046   1

  36 FME 081  1668 2006    339     14      0    .789    .83   2.91   .494   .768   .277   2.63   .422  -.063   2

  37 FME 111  1672 2006    335     14      0    .839    .92   3.02   .537   .676   .383   2.74   .378  -.050   2

  38 FME 293  1648 2006    359     15      0    .776   1.17   4.29   .690   .705   .350   2.55   .336  -.063   1

  39 FME 301  1558 2006    449     18      0    .767    .81   2.29   .369   .593   .362   2.62   .336  -.031   1

  40 FME 302  1649 2006    358     15      0    .859    .86   2.55   .443   .729   .342   2.67   .387  -.056   1

  41 FME 061  1578 2005    428     17      0    .729    .70   2.70   .525   .812   .353   2.62   .363  -.028   2

  42 FME 191  1763 2006    244     10      0    .655   1.48   4.28   .678   .790   .224   2.54   .357  -.042   2

  43 FME 211  1719 2006    288     12      0    .855   1.10   5.83   .679   .801   .320   2.56   .290  -.056   1

  44 FME 042  1775 2006    232      9      0    .711    .90   2.07   .413   .646   .312   2.59   .379  -.006   2

  45 FME 291  1688 2006    319     13      0    .759   1.17   3.75   .597   .649   .345   2.52   .327  -.085   1

  46 FME 161  1799 2006    208      9      0    .800   1.44   5.65   .843   .712   .292   2.66   .379  -.077   2

  47 FME 132  1811 2006    196      8      0    .795   1.48   3.88   .626   .714   .241   2.66   .337  -.082   1

  48 FME 189  1886 2006    121      5      0    .606   2.08   5.66   .933   .708   .276   2.56   .465  -.028   1

 PART 7:  DESCRIPTIVE STATISTICS: Freemont lake                                                    16:40  Tue 07 Jun 2011  Page  12

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



                                                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  ()

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

  49 FME 131  1800 2006    207      8      0    .771   1.51   3.30   .630   .721   .266   2.63   .413  -.100   1

  50 FME 231  1729 1929    201      8      0    .752   1.39   3.81   .540   .732   .215   2.60   .365  -.039   1

  51 FME 281  1793 2006    214      9      1    .611   1.27   3.40   .539   .728   .200   2.55   .408  -.014   1

  52 FME 241  1795 2006    212      9      0    .778    .80   2.66   .468   .598   .384   2.72   .541  -.050   2

  53 FME 092  1707 2006    300     12      0    .775   1.00   4.20   .627   .670   .326   2.64   .334  -.039   1

  54 FME 112  1669 2006    338     14      0    .802    .87   4.78   .583   .666   .398   2.66   .375  -.038   2

  55 FME 252  1664 2006    343     14      0    .796    .93   2.93   .498   .683   .323   2.68   .415  -.039   1

  56 FME 011  1507 2006    500     20      0    .749    .58   2.33   .351   .630   .431   2.75   .418  -.038   2

  57 FME 012  1522 2006    485     20      0    .777    .59   2.31   .345   .660   .433   2.70   .472  -.025   2

  58 FMT 031  1675 2006    332     13      0    .810    .95   3.11   .540   .788   .273   2.35   .246  -.023   1

  59 FMT 061  1656 2006    351     14      0    .855    .74   2.02   .342   .668   .319   2.69   .436  -.046   1

  60 FMT 022  1714 2006    293     12      0    .871   1.25   4.48   .717   .737   .313   2.49   .382  -.053   1

  61 FMT 062  1603 2006    404     16      0    .819    .69   2.25   .342   .656   .335   2.56   .343  -.051   1

  62 FMT 032  1681 2006    326     13      0    .845   1.04   3.31   .463   .690   .281   2.62   .376  -.035   1

  63 FMT 059  1703 2006    304     12      0    .794   1.23   3.25   .627   .738   .248   2.54   .321  -.073   2

  64 FMT 041  1685 2006    322     13      0    .811   1.13   4.06   .675   .797   .276   2.58   .381  -.030   1

  65 FMT 011  1705 2006    302     12      0    .836    .90   3.45   .543   .692   .345   2.52   .319  -.017   1

  66 FMT 012  1697 2006    310     13      0    .860    .88   3.18   .431   .657   .313   2.49   .330  -.013   1

  67 FMT 021  1731 2006    276     11      0    .826   1.23   3.39   .599   .497   .345   2.56   .361  -.039   1

  68 FMT 052  1750 1979    230      9      0    .680    .82   4.34   .601   .766   .355   2.65   .360  -.052   1

  69 FMT 013  1690 2006    317     13      0    .806    .87   3.74   .529   .693   .318   2.54   .378  -.027   1

  70 FMT 051  1695 2006    312     13      0    .803   1.02   3.03   .528   .781   .232   2.54   .291  -.019   1

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

 Total or mean:          19967    813      1    .766   1.07   9.17   .546   .699   .312   2.92   .369  -.041

