Eagle 11, Colorado  - co644 
Additional Information 
Connie Woodhouse  Mark Losleben  Jeff Lukas  Kurt Chowanski          

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   : CO644.CRN
      Measurement file name  : CO644.RWL
      Date checked           : 07JUN11
      Checked by             : B. Bauer
      Beginning year         :  379
      Ending year            : 2004
      Principal investigators: Connie Woodhouse  Mark Losleben  Jeff Lukas  Kurt Chowanski     
      Site name              : Eagle 11
      Site location          : Colorado     
      Species information    : PSME DOUGLAS-FIR
      Latitude               :   3939
      Longitude              : -10652
      Elevation              : 1950M

      Series intercorrelation: 0.839
      Avg mean sensitivity   : 0.368
      Avg standard deviation : 0.254
      Avg autocorrelation    : 0.748
      Number dated series    : 47
      Segment length tested  : 50

      Number problem segments: 0
      Pct problem segments   : 0.00



 PART 5:  CORRELATION OF SERIES BY SEGMENTS: Eagle v.11                                            16:39  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    375  400  425  450  475  500  525  550  575  600  625  650  675  700  725  750  775  800  825  850

                          424  449  474  499  524  549  574  599  624  649  674  699  724  749  774  799  824  849  874  899

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

  41 egx032    854 1190                                                                                                  .75

  44 egx311    678 1209                                                               .78  .79  .76  .88  .91  .92  .91  .87

  45 egx312    767 1114                                                                              .90  .93  .92  .91  .88

  46 egx011    388  795   .87  .87  .88  .88  .94  .96  .93  .92  .94  .94  .88  .88  .84  .78  .72  .80

  47 egx012    379  687   .87  .87  .88  .88  .94  .96  .93  .92  .94  .94  .88  .86

 Av segment correlation   .87  .87  .88  .88  .94  .96  .93  .92  .94  .94  .88  .87  .81  .78  .74  .86  .92  .92  .91  .84

 PART 5:  CORRELATION OF SERIES BY SEGMENTS: Eagle v.11                                            16:39  Tue 07 Jun 2011  Page   6

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

 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    875  900  925  950  975 1000 1025 1050 1075 1100 1125 1150 1175 1200 1225 1250 1275 1300 1325 1350

                          924  949  974  999 1024 1049 1074 1099 1124 1149 1174 1199 1224 1249 1274 1299 1324 1349 1374 1399

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

  27 egl194   1373 1513                                                                                                  .84

  29 egl151   1363 2004                                                                                                  .89

  30 egl021   1373 2004                                                                                                  .79

  31 egl111   1361 2004                                                                                                  .76

  33 egl202   1289 1605                                                                                   .83  .86  .86  .87

  34 egl211   1242 1933                                                                         .90  .88  .89  .83  .81  .86

  35 egl201   1197 1570                                                               .87  .89  .83  .85  .90  .90  .86  .85

  36 egx071   1124 1272                                                .80  .80  .77  .81  .90  .91

  37 egx071   1122 1386                                                .81  .82  .82  .85  .90  .89  .83  .87  .80  .89  .91

  38 egx051   1053 1269                                      .90  .91  .91  .90  .91  .92  .76  .38

  39 egx052   1053 1290                                      .91  .93  .93  .92  .92  .90  .92  .92  .87

  40 egx031    887 1208   .85  .87  .90  .91  .93  .94  .90  .83  .81  .84  .81  .75  .75

  41 egx032    854 1190   .76  .76  .86  .92  .93  .90  .89  .88  .85  .85  .78  .75

  42 egx041    938 1351             .83  .85  .94  .94  .93  .93  .85  .85  .91  .92  .91  .84  .85  .92  .89  .56  .58

  43 egx042    985 1385                       .80  .81  .91  .91  .90  .88  .90  .93  .91  .88  .86  .87  .91  .89  .85  .85

  44 egx311    678 1209   .90  .92  .77  .65  .90  .88  .87  .89  .87  .91  .82  .77  .80

  45 egx312    767 1114   .89  .86  .89  .93  .93  .94  .94  .93  .87

 Av segment correlation   .85  .85  .85  .85  .91  .90  .91  .90  .88  .86  .85  .84  .86  .87  .82  .87  .88  .81  .81  .85

 PART 5:  CORRELATION OF SERIES BY SEGMENTS: Eagle v.11                                            16:39  Tue 07 Jun 2011  Page   7

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

 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   1375 1400 1425 1450 1475 1500 1525 1550 1575 1600 1625 1650 1675 1700 1725 1750 1775 1800 1825 1850

                         1424 1449 1474 1499 1524 1549 1574 1599 1624 1649 1674 1699 1724 1749 1774 1799 1824 1849 1874 1899

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

   2 egl122   1869 2004                                                                                                  .74

   3 egl171   1716 2004                                                                    .88  .87  .91  .91  .84  .83  .73

   4 egl172   1710 2004                                                                    .75  .87  .89  .88  .88  .79  .75

   5 egl042   1727 2004                                                                         .87  .93  .89  .84  .85  .76

   6 egl141   1626 2004                                                     .78  .81  .89  .84  .75  .83  .79  .80  .79  .76

   7 egl142   1646 2004                                                     .78  .77  .89  .85  .78  .84  .79  .79  .80  .78

   8 egl231   1645 1867                                                     .82  .82  .68  .56  .70  .78  .73  .80  .86

   9 egl232   1606 2004                                                .81  .74  .73  .70  .71  .76  .83  .83  .84  .87  .79

  10 egl051   1547 2004                                 .82  .83  .81  .84  .87  .88  .93  .94  .92  .94  .93  .90  .91  .74

  11 egl052   1600 1861                                                .80  .84  .87  .73  .80  .93  .93  .90  .90  .87

  12 egl262   1547 2004                                 .73  .76  .63  .57  .77  .82  .74  .73  .85  .93  .83  .76  .87  .83

  13 egl241   1490 2004                       .79  .85  .90  .84  .75  .64  .67  .77  .79  .73  .79  .85  .78  .74  .80  .75

  14 egl242   1537 2004                                 .88  .83  .77  .76  .74  .73  .74  .74  .82  .79  .74  .81  .79  .69

  15 egl251   1491 2004                       .77  .79  .79  .78  .79  .75  .79  .84  .89  .85  .80  .87  .82  .77  .79  .73

  16 egl011   1465 1980                  .73  .78  .85  .80  .83  .80  .68  .75  .83  .85  .78  .82  .91  .89  .86  .87  .83

  17 egl131   1427 2004             .79  .85  .86  .91  .87  .81  .82  .87  .92  .90  .89  .89  .93  .94  .89  .83  .87  .85

  18 egl132   1433 2004             .78  .87  .89  .89  .82  .81  .88  .87  .90  .94  .89  .89  .92  .90  .86  .87  .90  .85

  19 egl261   1547 2004                                 .66  .73  .83  .79  .85  .86  .87  .88  .93  .89  .81  .83  .84  .77

  20 egl161   1405 2004        .83  .84  .89  .87  .80  .77  .81  .82  .88  .90  .79  .74  .88  .88  .78  .80  .84  .63  .54

  21 egl162   1380 1850   .85  .80  .82  .90  .90  .84  .87  .83  .74  .82  .89  .89  .77  .83  .91  .86  .88  .91  .89

  22 egl112   1397 2004   .77  .80  .87  .90  .88  .91  .93  .91  .91  .91  .92  .91  .84  .88  .92  .92  .87  .87  .90  .75

  23 egl022   1397 2004   .90  .89  .91  .88  .83  .88  .81  .84  .85  .83  .76  .69  .89  .93  .92  .88  .86  .89  .93  .88

  24 egl061   1386 1850   .87  .84  .87  .93  .94  .92  .90  .86  .84  .85  .84  .85  .79  .78  .84  .77  .69  .76  .76

  25 egl062   1395 2004   .88  .87  .86  .90  .89  .91  .93  .89  .86  .82  .83  .85  .90  .91  .92  .90  .83  .79  .76  .67

  26 egl191   1393 1610   .86  .85  .87  .90  .87  .84  .88  .88  .90

  27 egl194   1373 1513   .84  .83  .83  .92  .92

  28 egl195   1489 1574                       .92  .90  .83

  29 egl151   1363 2004   .87  .88  .92  .93  .87  .91  .89  .88  .86  .87  .93  .92  .95  .92  .89  .95  .92  .88  .89  .86

  30 egl021   1373 2004   .78  .82  .84  .84  .82  .85  .87  .90  .88  .83  .84  .83  .84  .89  .90  .91  .90  .88  .90  .84

  31 egl111   1361 2004   .73  .67  .79  .84  .88  .91  .91  .91  .78  .76  .79  .81  .88  .89  .93  .94  .89  .88  .93  .82

  32 egl012   1375 2004   .68  .59  .64  .70  .78  .82  .77  .77  .73  .73  .82  .85  .88  .84  .86  .92  .88  .88  .94  .88

  33 egl202   1289 1605   .81  .78  .83  .80  .74  .83  .86  .85  .85

  34 egl211   1242 1933   .88  .84  .88  .87  .83  .89  .87  .87  .82  .73  .77  .80  .82  .86  .90  .95  .95  .92  .89  .82

  35 egl201   1197 1570   .79  .75  .79  .77  .70  .84  .85

 Av segment correlation   .82  .80  .83  .86  .84  .87  .84  .84  .81  .79  .82  .83  .83  .83  .86  .88  .85  .84  .85  .78

 PART 5:  CORRELATION OF SERIES BY SEGMENTS: Eagle v.11                                            16:39  Tue 07 Jun 2011  Page   8

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

 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   1875 1900 1925 1950 1975

                         1924 1949 1974 1999 2024

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

   1 egl121   1892 2004   .69  .74  .74  .80  .75

   2 egl122   1869 2004   .76  .83  .87  .82  .76

   3 egl171   1716 2004   .73  .83  .83  .85  .79

   4 egl172   1710 2004   .77  .81  .85  .86  .79

   5 egl042   1727 2004   .71  .79  .89  .91  .84

   6 egl141   1626 2004   .78  .85  .90  .90  .88

   7 egl142   1646 2004   .78  .80  .90  .92  .87

   9 egl232   1606 2004   .76  .77  .74  .84  .86

  10 egl051   1547 2004   .50  .64  .80  .83  .77

  12 egl262   1547 2004   .81  .91  .93  .94  .92

  13 egl241   1490 2004   .69  .77  .86  .89  .82

  14 egl242   1537 2004   .72  .80  .86  .89  .86

  15 egl251   1491 2004   .59  .68  .80  .77  .70

  16 egl011   1465 1980   .63  .67  .78  .78

  17 egl131   1427 2004   .79  .84  .89  .91  .88

  18 egl132   1433 2004   .84  .86  .88  .91  .86

  19 egl261   1547 2004   .76  .82  .86  .90  .89

  20 egl161   1405 2004   .72  .84  .86  .85  .80

  22 egl112   1397 2004   .75  .88  .89  .90  .90

  23 egl022   1397 2004   .72  .73  .85  .90  .87

  25 egl062   1395 2004   .63  .79  .87  .88  .88

  29 egl151   1363 2004   .86  .84  .89  .95  .93

  30 egl021   1373 2004   .71  .80  .87  .88  .81

  31 egl111   1361 2004   .80  .88  .88  .88  .90

  32 egl012   1375 2004   .85  .81  .83  .86  .75

  34 egl211   1242 1933   .68  .70

 Av segment correlation   .73  .80  .85  .87  .84

 PART 7:  DESCRIPTIVE STATISTICS: Eagle v.11                                                       16:39  Tue 07 Jun 2011  Page  17

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



                                                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 egl121   1892 2004    113      5      0    .732   1.83   4.01   .744   .769   .230   2.46   .452  -.041   1

   2 egl122   1869 2004    136      6      0    .801   1.93   3.50   .698   .708   .240   2.49   .407  -.023   1

   3 egl171   1716 2004    289     12      0    .844    .32   1.02   .212   .779   .428   2.55   .363  -.036   2

   4 egl172   1710 2004    295     12      0    .831    .25   1.01   .169   .807   .415   2.45   .288  -.050   2

   5 egl042   1727 2004    278     11      0    .859    .59   2.52   .357   .617   .418   2.69   .358  -.044   1

   6 egl141   1626 2004    379     15      0    .826    .46   1.56   .256   .685   .362   2.59   .323   .005   1

   7 egl142   1646 2004    359     15      0    .811    .49   1.78   .255   .670   .347   2.42   .216  -.031   2

   8 egl231   1645 1867    223      9      0    .746    .62   1.70   .307   .642   .351   2.61   .424  -.008   1

   9 egl232   1606 2004    399     16      0    .787    .45   1.97   .318   .837   .354   2.64   .355  -.003   1

  10 egl051   1547 2004    458     19      0    .836    .42   2.46   .300   .815   .335   2.53   .332  -.050   2

  11 egl052   1600 1861    262     10      0    .845    .45   1.60   .259   .804   .320   2.58   .410  -.034   5

  12 egl262   1547 2004    458     19      0    .812    .40   1.40   .227   .816   .301   2.56   .402  -.045   1

  13 egl241   1490 2004    515     21      0    .779    .51   1.95   .215   .729   .262   2.58   .329  -.039   1

  14 egl242   1537 2004    468     19      0    .783    .43   1.43   .166   .650   .265   2.55   .312  -.051   1

  15 egl251   1491 2004    514     21      0    .763    .32   1.75   .209   .781   .335   2.47   .276  -.013   1

  16 egl011   1465 1980    516     21      0    .788    .38   1.75   .257   .723   .391   2.77   .396  -.051   5

  17 egl131   1427 2004    578     23      0    .867    .48   1.68   .283   .819   .306   2.51   .240  -.025   2

  18 egl132   1433 2004    572     23      0    .878    .42   1.53   .274   .837   .332   2.46   .294  -.004   1

  19 egl261   1547 2004    458     19      0    .829    .51   1.26   .212   .711   .277   2.52   .351  -.028   1

  20 egl161   1405 2004    600     24      0    .826    .24   1.11   .175   .826   .362   2.65   .309  -.026   9

  21 egl162   1380 1850    471     19      0    .860    .28   1.43   .238   .865   .399   2.50   .292  -.042   5

  22 egl112   1397 2004    608     25      0    .880    .31    .96   .153   .642   .369   2.38   .242  -.017   1

  23 egl022   1397 2004    608     25      0    .851    .45   1.81   .295   .792   .350   2.47   .267  -.045   7

  24 egl061   1386 1850    465     19      0    .838    .42   1.88   .330   .865   .352   2.57   .319  -.024   2

  25 egl062   1395 2004    610     25      0    .851    .35   1.62   .224   .809   .328   2.50   .324  -.012   2

  26 egl191   1393 1610    218      9      0    .868    .48   2.31   .385   .828   .388   2.93   .509  -.028   4

  27 egl194   1373 1513    141      6      0    .875    .85   2.91   .590   .867   .358   2.67   .390  -.040   2

  28 egl195   1489 1574     86      3      0    .864    .35   1.00   .210   .585   .469   2.63   .517   .031   1

  29 egl151   1363 2004    642     26      0    .901    .48   2.17   .317   .827   .327   2.47   .280  -.014   2

  30 egl021   1373 2004    632     26      0    .862    .47   3.96   .481   .898   .365   2.70   .291  -.030   8

  31 egl111   1361 2004    644     26      0    .858    .35   1.34   .216   .698   .398   2.51   .264  -.016   1

  32 egl012   1375 2004    630     25      0    .805    .34   1.14   .190   .689   .402   2.50   .291  -.029   5

  33 egl202   1289 1605    317     13      0    .840    .24    .75   .132   .634   .454   2.54   .324  -.009   1

  34 egl211   1242 1933    692     28      0    .849    .30    .99   .162   .609   .423   2.52   .223  -.030   2

  35 egl201   1197 1570    374     15      0    .848    .30   1.02   .177   .698   .460   2.55   .367  -.027   1

  36 egx071   1124 1272    149      6      0    .827    .79   2.53   .442   .770   .318   2.47   .368  -.065   1

  37 egx071   1122 1386    265     11      0    .856    .53   2.10   .401   .851   .389   2.46   .341  -.041   1

  38 egx051   1053 1269    217      8      0    .735    .37   1.28   .239   .628   .394   2.58   .341  -.039   1

  39 egx052   1053 1290    238      9      0    .914    .32   1.53   .251   .641   .504   2.64   .369  -.064   1

  40 egx031    887 1208    322     13      0    .864    .28   1.03   .161   .697   .346   2.61   .351  -.056   2

  41 egx032    854 1190    337     13      0    .829    .27    .99   .146   .710   .325   2.60   .304  -.051   2

  42 egx041    938 1351    414     17      0    .838    .34   1.46   .256   .756   .433   2.69   .422  -.036   1

  43 egx042    985 1385    401     16      0    .856    .34   2.14   .306   .813   .442   2.63   .388  -.046   1

  44 egx311    678 1209    532     21      0    .845    .26   1.17   .189   .753   .470   2.57   .399  -.066   2

  45 egx312    767 1114    348     14      0    .894    .36   1.30   .239   .662   .490   2.71   .384  -.057   3

  46 egx011    388  795    408     16      0    .870    .40   1.14   .201   .649   .383   2.56   .363  -.017   1

  47 egx012    379  687    309     12      0    .909    .39    .94   .168   .549   .365   2.54   .424  -.040   1

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

 Total or mean:          18948    766      0    .839    .41   4.01   .254   .748   .368   2.93   .326  -.031

