Navajo Canyon, Colorado - co647 Additional Information Dave Meko Chris Baisan Troy Knight 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 : CO647.CRN Measurement file name : CO647.RWL Date checked : 07JUN11 Checked by : B. Bauer Beginning year : 1230 Ending year : 2005 Principal investigators: Dave Meko Chris Baisan Troy Knight Site name : Navajo Canyon Site location : Colorado Species information : PSME DOUGLAS-FIR Latitude : 3712 Longitude : -10830 Elevation : 2134m Series intercorrelation: 0.878 Avg mean sensitivity : 0.592 Avg standard deviation : 0.305 Avg autocorrelation : 0.568 Number dated series : 24 Segment length tested : 50 Number problem segments: 0 Pct problem segments : 0.00 PART 5: CORRELATION OF SERIES BY SEGMENTS: Navajo Canyon 16:42 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 1225 1250 1275 1300 1325 1350 1375 1400 1425 1450 1475 1500 1525 1550 1575 1600 1625 1650 1675 1700 1274 1299 1324 1349 1374 1399 1424 1449 1474 1499 1524 1549 1574 1599 1624 1649 1674 1699 1724 1749 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 NAV02A 1370 1670 .76 .82 .84 .85 .88 .91 .92 .91 .87 .88 .80 .78 2 NAV02B 1407 1750 .83 .85 .89 .88 .82 .79 .85 .90 .87 .87 .90 .92 .93 3 NAV03A 1590 2005 .90 .91 .94 .91 .87 .89 4 NAV03B 1531 2005 .61 .86 .90 .95 .95 .94 .92 .92 5 NAV04A1 1520 1562 .86 6 NAV04A2 1570 2005 .82 .83 .85 .89 .91 .89 .87 7 NAV04B 1663 2005 .79 .81 .83 8 NAV05A 1428 1750 .86 .95 .93 .90 .93 .93 .92 .93 .92 .88 .89 .91 9 NAV05B 1411 1750 .81 .87 .95 .92 .90 .92 .94 .95 .96 .95 .55 .61 .90 10 NAV06A 1564 2005 .88 .87 .87 .89 .87 .85 .90 11 NAV06B 1545 2005 .85 .88 .90 .87 .87 .87 .88 .92 12 NAV07A 1393 1800 .81 .87 .90 .93 .95 .96 .96 .91 .89 .94 .94 .82 .86 .93 13 NAV07B 1372 1820 .90 .89 .88 .90 .94 .95 .94 .92 .89 .88 .93 .94 .91 .91 .94 14 NAV08A 1454 2005 .95 .95 .93 .95 .93 .90 .91 .93 .96 .95 .94 15 NAV08B 1442 2005 .91 .95 .94 .92 .92 .92 .90 .89 .92 .95 .95 .96 17 NAV18B 1663 2005 .88 .92 .95 18 NAV22A 1341 2005 .90 .92 .87 .85 .93 .95 .91 .91 .94 .93 .94 .96 .97 .95 .92 .92 19 NAV22B 1314 2000 .87 .88 .92 .90 .88 .91 .94 .88 .88 .92 .89 .90 .95 .95 .95 .93 .94 20 NAV27A 1230 1470 .77 .78 .88 .91 .89 .85 .82 .83 .80 21 NAV29A 1248 1460 .72 .73 .81 .92 .90 .87 .89 .88 .88 22 NAV33A 1287 1860 .75 .87 .90 .87 .84 .83 .78 .81 .88 .88 .89 .90 .89 .93 .95 .93 .91 .93 23 NAV35A 1365 1990 .86 .87 .87 .89 .93 .94 .95 .94 .90 .92 .91 .90 .88 .89 .86 24 NAV37A 1397 2000 .74 .73 .82 .93 .94 .92 .86 .80 .85 .89 .89 .89 .91 .94 Av segment correlation .75 .75 .81 .89 .90 .87 .85 .84 .87 .93 .92 .91 .89 .89 .90 .91 .91 .88 .88 .91 PART 5: CORRELATION OF SERIES BY SEGMENTS: Navajo Canyon 16:42 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 1725 1750 1775 1800 1825 1850 1875 1900 1925 1950 1975 1774 1799 1824 1849 1874 1899 1924 1949 1974 1999 2024 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 2 NAV02B 1407 1750 .92 3 NAV03A 1590 2005 .93 .90 .91 .91 .91 .96 .93 .93 .93 .95 .94 4 NAV03B 1531 2005 .92 .91 .92 .88 .84 .88 .91 .91 .91 .91 .91 6 NAV04A2 1570 2005 .91 .94 .95 .95 .95 .95 .95 .95 .94 .96 .95 7 NAV04B 1663 2005 .86 .91 .94 .93 .92 .93 .93 .93 .92 .91 .90 8 NAV05A 1428 1750 .91 9 NAV05B 1411 1750 .89 10 NAV06A 1564 2005 .87 .83 .84 .86 .88 .91 .83 .82 .86 .86 .85 11 NAV06B 1545 2005 .91 .90 .91 .89 .90 .92 .92 .93 .92 .92 .92 12 NAV07A 1393 1800 .88 .74 .74 13 NAV07B 1372 1820 .94 .93 .92 14 NAV08A 1454 2005 .92 .90 .94 .97 .97 .96 .97 .96 .96 .96 .96 15 NAV08B 1442 2005 .92 .91 .94 .96 .96 .96 .96 .96 .95 .92 .92 16 NAV18A 1741 2005 .93 .91 .92 .84 .84 .95 .94 .92 .91 .89 .87 17 NAV18B 1663 2005 .93 .87 .87 .89 .90 .93 .94 .94 .92 .88 .87 18 NAV22A 1341 2005 .94 .93 .96 .95 .94 .96 .95 .95 .95 .93 .93 19 NAV22B 1314 2000 .94 .93 .95 .95 .94 .96 .95 .92 .91 .91 .91 22 NAV33A 1287 1860 .95 .91 .90 .92 .90 23 NAV35A 1365 1990 .86 .92 .95 .95 .95 .96 .95 .92 .90 .78 24 NAV37A 1397 2000 .94 .93 .94 .95 .94 .94 .93 .92 .93 .75 .75 Av segment correlation .91 .90 .91 .92 .92 .94 .93 .93 .92 .89 .90 PART 7: DESCRIPTIVE STATISTICS: Navajo Canyon 16:42 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 NAV02A 1370 1670 301 12 0 .849 .39 1.49 .235 .588 .436 2.78 .421 -.015 1 2 NAV02B 1407 1750 344 14 0 .840 .41 2.36 .345 .723 .513 2.81 .457 -.067 1 3 NAV03A 1590 2005 416 17 0 .893 .48 1.75 .304 .413 .605 2.71 .423 -.068 1 4 NAV03B 1531 2005 475 19 0 .848 .49 1.83 .307 .501 .575 2.77 .397 -.066 1 5 NAV04A1 1520 1562 43 1 0 .865 .82 1.69 .361 .357 .459 2.59 .505 -.037 1 6 NAV04A2 1570 2005 436 18 0 .886 .43 2.07 .314 .524 .617 2.84 .471 -.025 1 7 NAV04B 1663 2005 343 14 0 .858 .35 1.48 .218 .331 .616 2.78 .469 -.054 1 8 NAV05A 1428 1750 323 13 0 .889 .40 2.44 .417 .741 .647 2.64 .400 -.041 1 9 NAV05B 1411 1750 340 14 0 .838 .47 2.40 .446 .743 .620 2.70 .423 -.025 1 10 NAV06A 1564 2005 442 18 0 .821 .38 2.24 .359 .769 .548 2.58 .420 -.040 1 11 NAV06B 1545 2005 461 19 0 .858 .50 2.35 .408 .769 .504 2.65 .469 -.025 2 12 NAV07A 1393 1800 408 17 0 .897 .31 2.00 .264 .617 .643 2.76 .439 -.025 1 13 NAV07B 1372 1820 449 18 0 .904 .32 1.18 .211 .515 .615 2.60 .344 -.031 1 14 NAV08A 1454 2005 552 22 0 .926 .41 2.80 .329 .615 .640 2.68 .387 -.051 1 15 NAV08B 1442 2005 564 23 0 .909 .42 2.52 .339 .628 .630 2.66 .387 -.048 1 16 NAV18A 1741 2005 265 11 0 .896 .50 2.33 .349 .403 .684 2.60 .442 -.050 1 17 NAV18B 1663 2005 343 14 0 .887 .45 1.32 .285 .340 .682 2.71 .437 -.050 1 18 NAV22A 1341 2005 665 27 0 .909 .39 1.56 .233 .476 .569 2.57 .384 -.043 1 19 NAV22B 1314 2000 687 28 0 .901 .43 2.60 .286 .520 .571 2.62 .371 -.046 1 20 NAV27A 1230 1470 241 9 0 .839 .51 2.24 .357 .468 .584 2.56 .359 -.034 1 21 NAV29A 1248 1460 213 9 0 .810 .51 2.31 .422 .595 .576 2.51 .342 -.077 1 22 NAV33A 1287 1860 574 23 0 .874 .30 1.58 .211 .585 .612 2.60 .391 -.044 1 23 NAV35A 1365 1990 626 25 0 .880 .42 2.38 .317 .606 .615 2.83 .408 -.044 1 24 NAV37A 1397 2000 604 25 0 .873 .41 1.38 .254 .569 .541 2.57 .358 -.041 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 10115 410 0 .878 .42 2.80 .305 .568 .592 2.84 .406 -.043