Green Mountain Reservoir update, Colorado - co646 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 : CO646.CRN Measurement file name : CO646.RWL Date checked : 07JUN11 Checked by : B. Bauer Beginning year : 602 Ending year : 2004 Principal investigators: Connie Woodhouse Mark Losleben Jeff Lukas Kurt Chowanski Site name : Green Mountain Reservoir update Site location : Colorado Species information : PSME DOUGLAS-FIR Latitude : 3951 Longitude : -10614 Elevation : 2514m Series intercorrelation: 0.833 Avg mean sensitivity : 0.390 Avg standard deviation : 0.227 Avg autocorrelation : 0.676 Number dated series : 63 Segment length tested : 50 Number problem segments: 0 Pct problem segments : 0.00 PART 5: CORRELATION OF SERIES BY SEGMENTS: Green Mountain Reservoir update 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 600 625 650 675 700 725 750 775 800 825 850 875 900 925 950 975 1000 1025 1050 1075 649 674 699 724 749 774 799 824 849 874 899 924 949 974 999 1024 1049 1074 1099 1124 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 gmx061 654 1520 .79 .79 .86 .82 .78 .88 .89 .78 .76 .74 .85 .86 .77 .79 .65 .61 .80 .77 2 gmx062 656 1130 .76 .73 .80 .86 .86 .90 .88 .85 .84 .79 .88 .81 .71 .76 .64 .57 .77 .87 3 gmx022 684 1039 .68 .78 .72 .66 .84 .81 .71 .73 .79 .81 .81 .75 .75 .79 4 gmx021 680 1064 .71 .79 .80 .71 .78 .78 .77 .82 .83 .84 .70 .67 .78 .80 .70 5 gmx011 997 1530 .70 .69 .73 .86 .88 6 gmx012 1028 1444 .81 .86 .90 20 gmx051 602 1053 .75 .80 .79 .78 .79 .69 .64 .85 .80 .71 .78 .80 .86 .89 .86 .82 .82 .80 21 gmx052 602 772 .75 .82 .78 .74 .80 .83 22 gmx053 760 1014 .87 .89 .85 .74 .78 .84 .82 .81 .73 .72 Av segment correlation .75 .81 .78 .74 .80 .79 .75 .86 .83 .76 .79 .80 .84 .81 .75 .76 .73 .70 .82 .85 PART 5: CORRELATION OF SERIES BY SEGMENTS: Green Mountain Reservoir update 16:40 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 1100 1125 1150 1175 1200 1225 1250 1275 1300 1325 1350 1375 1400 1425 1450 1475 1500 1525 1550 1575 1149 1174 1199 1224 1249 1274 1299 1324 1349 1374 1399 1424 1449 1474 1499 1524 1549 1574 1599 1624 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 gmx061 654 1520 .72 .79 .78 .81 .84 .78 .77 .75 .69 .64 .77 .90 .76 .72 .79 .77 2 gmx062 656 1130 .88 5 gmx011 997 1530 .80 .79 .69 .74 .83 .80 .83 .87 .88 .83 .84 .84 .76 .56 .60 .73 .66 6 gmx012 1028 1444 .81 .84 .78 .81 .88 .82 .84 .87 .90 .86 .83 .84 .80 7 gmx041 1120 1590 .66 .72 .70 .68 .67 .77 .85 .80 .60 .61 .84 .88 .78 .72 .78 .80 .80 .81 .86 8 gmx042 1112 1620 .65 .77 .73 .73 .69 .78 .82 .77 .78 .77 .84 .81 .65 .71 .73 .70 .77 .81 .80 .81 9 gmx072 1216 1686 .79 .77 .84 .84 .80 .64 .72 .85 .71 .68 .76 .67 .73 .69 .64 .72 10 gmx071 1215 1680 .80 .77 .81 .80 .80 .60 .66 .83 .76 .69 .74 .66 .76 .72 .62 .76 11 gmr401 1216 1724 .82 .81 .81 .82 .77 .70 .70 .75 .77 .84 .86 .79 .83 .86 .86 .85 12 gmr402 1260 1723 .76 .82 .80 .73 .77 .79 .78 .85 .87 .79 .82 .88 .81 .78 13 gmx032 1290 1600 .64 .64 .67 .74 .73 .68 .71 .80 .74 .80 .79 .72 .74 14 gmx031 1290 1612 .64 .58 .54 .74 .78 .72 .76 .81 .81 .87 .77 .75 .83 17 gmr312 1449 2004 .91 .90 .92 .93 .82 .84 .91 26 gmr361 1490 2004 .88 .89 .90 .87 .89 27 gmr381 1590 2002 .63 28 gmr382 1570 1960 .69 .74 30 gmr392 1580 2004 .70 31 gmr421 1335 2004 .80 .79 .84 .81 .82 .87 .86 .85 .80 .72 .72 32 gmr422 1322 2004 .82 .79 .83 .87 .76 .70 .78 .85 .81 .78 .72 .69 33 gmr431 1490 2004 .81 .80 .86 .91 .88 35 gmr502 1570 2004 .82 .81 36 gmr541 1359 2004 .74 .73 .57 .44 .57 .80 .78 .74 .70 .69 37 gmr011 1429 2000 .80 .79 .83 .92 .91 .90 .90 38 gmr012 1489 2000 .81 .91 .91 .90 .92 40 gmr022 1556 2000 .80 .83 47 gmr111 1430 2000 .87 .83 .83 .89 .88 .80 .87 48 gmr112 1433 2000 .89 .90 .86 .86 .89 .88 .88 49 gmr121 1433 1745 .74 .84 .79 .83 .86 .89 .93 51 gmr122 1450 2000 .76 .73 .76 .81 .88 .92 52 gmr131 1569 2000 .74 .78 53 gmr141 1435 2000 .63 .72 .81 .79 .67 .64 .71 54 gmr142 1460 2000 .70 .73 .73 .70 .70 .72 56 gmr211 1408 1892 .76 .80 .80 .85 .85 .86 .91 .93 57 gmr213 1408 1672 .78 .79 .81 .73 .83 .96 .92 .93 58 gmr212 1497 2000 .84 .84 .84 .85 .89 59 gmr221 1437 2000 .76 .79 .81 .86 .90 .85 .82 60 gmr222 1450 1801 .82 .80 .80 .83 .82 .79 61 gmr251 1378 1849 .67 .82 .84 .86 .92 .92 .90 .86 .92 62 gmr252 1465 1830 .91 .91 .94 .94 .94 .95 63 gmr152 1559 1997 .84 .87 Av segment correlation .75 .78 .73 .75 .79 .79 .82 .78 .75 .71 .77 .81 .75 .75 .79 .80 .83 .83 .81 .82 PART 5: CORRELATION OF SERIES BY SEGMENTS: Green Mountain Reservoir update 16:40 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 1600 1625 1650 1675 1700 1725 1750 1775 1800 1825 1850 1875 1900 1925 1950 1975 1649 1674 1699 1724 1749 1774 1799 1824 1849 1874 1899 1924 1949 1974 1999 2024 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 9 gmx072 1216 1686 .78 .84 .85 10 gmx071 1215 1680 .83 .86 .84 11 gmr401 1216 1724 .88 .93 .91 .90 12 gmr402 1260 1723 .88 .93 .87 .87 15 gmr301 1605 2004 .90 .95 .97 .91 .86 .90 .94 .92 .90 .91 .86 .78 .76 .89 .92 .90 16 gmr302 1642 2004 .92 .93 .91 .90 .92 .97 .94 .89 .89 .88 .70 .67 .89 .90 .87 17 gmr312 1449 2004 .89 .92 .94 .94 .93 .95 .94 .92 .89 .88 .90 .89 .85 .84 .87 .90 18 gmr331 1843 2004 .92 .91 .88 .84 .91 .93 .90 19 gmr331 1670 2003 .83 .84 .73 .78 .91 .91 .89 .90 .88 .83 .83 .91 .92 .92 23 gmr332 1700 2003 .85 .88 .89 .86 .86 .91 .91 .83 .76 .88 .91 .92 24 gmr341 1650 2004 .95 .93 .88 .90 .95 .94 .92 .89 .85 .85 .69 .81 .93 .90 25 gmr351 1793 2004 .79 .78 .91 .87 .86 .82 .90 .91 .84 26 gmr361 1490 2004 .92 .94 .94 .90 .90 .90 .91 .89 .90 .91 .71 .70 .85 .89 .91 .91 27 gmr381 1590 2002 .69 .84 .91 .90 .85 .85 .90 .87 .86 .89 .89 .90 .87 .89 .89 .88 28 gmr382 1570 1960 .66 .76 .90 .87 .82 .79 .90 .88 .85 .92 .90 .89 .87 .90 29 gmr391 1750 2004 .91 .90 .87 .90 .85 .85 .90 .70 .57 .60 30 gmr392 1580 2004 .77 .89 .92 .85 .79 .84 .92 .92 .91 .94 .90 .86 .86 .79 .74 .73 31 gmr421 1335 2004 .78 .83 .82 .85 .75 .62 .82 .86 .74 .74 .66 .62 .67 .68 .71 .66 32 gmr422 1322 2004 .77 .82 .84 .85 .82 .76 .83 .83 .81 .76 .70 .68 .67 .73 .79 .69 33 gmr431 1490 2004 .85 .90 .92 .91 .85 .84 .84 .82 .83 .76 .60 .57 .58 .72 .81 .77 34 gmr501 1720 2004 .86 .87 .91 .91 .91 .89 .88 .85 .82 .89 .92 .91 35 gmr502 1570 2004 .82 .91 .93 .88 .81 .86 .92 .89 .88 .89 .87 .83 .80 .80 .87 .88 36 gmr541 1359 2004 .70 .84 .84 .70 .69 .76 .83 .87 .79 .81 .81 .62 .47 .71 .80 .71 37 gmr011 1429 2000 .90 .95 .96 .94 .94 .95 .94 .92 .94 .93 .92 .92 .90 .87 .90 .91 38 gmr012 1489 2000 .90 .88 .92 .90 .89 .93 .95 .94 .93 .94 .93 .91 .89 .85 .90 .90 39 gmr021 1664 2000 .86 .92 .90 .93 .96 .95 .92 .93 .91 .86 .75 .83 .93 .93 40 gmr022 1556 2000 .79 .87 .93 .93 .89 .89 .95 .95 .92 .93 .93 .88 .74 .82 .92 .92 41 gmr031 1687 1880 .79 .86 .86 .92 .86 .77 .90 .88 42 gmr032 1673 2000 .81 .81 .76 .82 .90 .82 .74 .79 .73 .76 .76 .91 .89 .89 43 gmr041 1680 2000 .77 .71 .81 .92 .93 .92 .92 .89 .88 .86 .88 .91 .91 44 gmr042 1660 2000 .91 .83 .77 .85 .93 .93 .92 .95 .92 .90 .89 .88 .92 .93 45 gmr051 1698 2000 .77 .75 .77 .90 .92 .80 .84 .90 .89 .87 .84 .85 .86 46 gmr052 1674 1987 .82 .82 .78 .78 .91 .91 .85 .88 .91 .88 .81 .84 .83 47 gmr111 1430 2000 .91 .92 .88 .91 .88 .90 .94 .87 .84 .88 .89 .89 .87 .90 .93 .94 48 gmr112 1433 2000 .91 .95 .94 .90 .88 .91 .96 .92 .91 .91 .90 .88 .83 .87 .90 .90 49 gmr121 1433 1745 .91 .92 .94 .93 .92 50 gmr121 1760 2000 .83 .85 .89 .90 .90 .86 .83 .85 .86 .86 51 gmr122 1450 2000 .86 .85 .88 .82 .63 .65 .90 .92 .90 .91 .88 .85 .85 .92 .92 .92 52 gmr131 1569 2000 .74 .78 .84 .75 .71 .76 .88 .91 .85 .83 .89 .85 .76 .73 .81 .81 53 gmr141 1435 2000 .61 .66 .74 .76 .79 .85 .90 .90 .79 .77 .85 .89 .81 .70 .77 .77 54 gmr142 1460 2000 .62 .72 .77 .74 .69 .64 .77 .83 .66 .71 .78 .79 .76 .78 .83 .84 55 gmr151 1665 1999 .89 .89 .84 .88 .92 .87 .78 .82 .85 .86 .85 .87 .90 56 gmr211 1408 1892 .93 .94 .95 .93 .92 .91 .93 .91 .90 .93 .92 57 gmr213 1408 1672 .93 .91 58 gmr212 1497 2000 .90 .93 .95 .93 .91 .90 .94 .93 .92 .95 .89 .78 .66 .82 .93 .93 59 gmr221 1437 2000 .85 .89 .93 .92 .88 .91 .93 .91 .90 .89 .85 .90 .86 .86 .89 .89 60 gmr222 1450 1801 .82 .88 .94 .89 .82 .85 .92 .92 61 gmr251 1378 1849 .94 .97 .96 .93 .92 .92 .96 .95 .92 62 gmr252 1465 1830 .96 .96 .96 .95 .93 .93 .95 .95 .93 63 gmr152 1559 1997 .82 .88 .89 .84 .81 .85 .91 .89 .83 .84 .83 .88 .89 .87 .91 Av segment correlation .83 .88 .90 .87 .83 .85 .91 .90 .86 .88 .86 .83 .80 .84 .87 .86 PART 7: DESCRIPTIVE STATISTICS: Green Mountain Reservoir update 16:40 Tue 07 Jun 2011 Page 16 ----------------------------------------------------------------------------------------------------------------------------------- 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 gmx061 654 1520 867 34 0 .780 .20 1.38 .164 .835 .327 2.76 .364 -.017 1 2 gmx062 656 1130 475 19 0 .794 .26 1.63 .191 .806 .306 2.65 .341 -.014 1 3 gmx022 684 1039 356 14 0 .761 .51 2.31 .370 .575 .552 2.77 .428 -.015 1 4 gmx021 680 1064 385 15 0 .765 .33 1.18 .186 .329 .553 2.71 .446 -.003 1 5 gmx011 997 1530 534 22 0 .784 .33 1.03 .183 .542 .489 2.69 .397 -.023 1 6 gmx012 1028 1444 417 16 0 .846 .36 1.20 .192 .556 .450 2.57 .421 -.001 1 7 gmx041 1120 1590 471 19 0 .761 .29 1.26 .196 .856 .294 2.59 .325 -.017 1 8 gmx042 1112 1620 509 20 0 .755 .24 1.10 .155 .790 .325 2.61 .350 -.022 1 9 gmx072 1216 1686 471 19 0 .754 .42 1.96 .341 .801 .456 2.45 .338 -.024 2 10 gmx071 1215 1680 466 19 0 .746 .43 1.96 .378 .832 .456 2.61 .365 -.016 2 11 gmr401 1216 1724 509 20 0 .835 .26 .97 .170 .472 .649 2.67 .408 -.005 1 12 gmr402 1260 1723 464 18 0 .831 .24 1.07 .155 .505 .636 2.67 .484 -.011 1 13 gmx032 1290 1600 311 13 0 .734 .26 .77 .125 .518 .373 2.66 .374 .003 1 14 gmx031 1290 1612 323 13 0 .754 .27 .74 .137 .539 .395 2.62 .377 .002 1 15 gmr301 1605 2004 400 16 0 .897 .25 1.13 .144 .504 .504 2.85 .483 -.009 1 16 gmr302 1642 2004 363 15 0 .886 .21 .88 .120 .406 .548 2.96 .501 .011 1 17 gmr312 1449 2004 556 23 0 .896 .41 1.93 .278 .743 .401 2.72 .383 -.012 1 18 gmr331 1843 2004 162 7 0 .903 .36 1.04 .154 .589 .325 2.80 .384 .016 1 19 gmr331 1670 2003 334 14 0 .867 .29 1.18 .155 .681 .352 2.58 .373 -.003 1 20 gmx051 602 1053 452 18 0 .783 .31 1.15 .149 .755 .252 2.69 .326 -.031 1 21 gmx052 602 772 171 6 0 .772 .45 1.21 .156 .566 .248 2.74 .449 -.041 1 22 gmx053 760 1014 255 10 0 .828 .22 .62 .105 .790 .282 2.66 .363 -.002 1 23 gmr332 1700 2003 304 12 0 .863 .25 .67 .122 .623 .374 2.62 .368 -.018 1 24 gmr341 1650 2004 355 14 0 .894 .50 1.94 .308 .739 .398 2.73 .358 -.023 1 25 gmr351 1793 2004 212 9 0 .850 .39 .88 .139 .522 .300 2.57 .380 .002 1 26 gmr361 1490 2004 515 21 0 .890 .33 1.55 .200 .688 .377 2.69 .400 -.028 1 27 gmr381 1590 2002 413 17 0 .856 .31 1.39 .205 .713 .369 2.59 .374 -.023 1 28 gmr382 1570 1960 391 16 0 .837 .33 1.42 .226 .698 .373 2.51 .301 -.024 1 29 gmr391 1750 2004 255 10 0 .820 .35 1.05 .179 .593 .368 2.63 .460 .011 1 30 gmr392 1580 2004 425 17 0 .840 .41 1.18 .184 .523 .347 2.61 .307 -.006 1 31 gmr421 1335 2004 670 27 0 .774 .29 1.26 .189 .606 .416 2.76 .411 -.003 1 32 gmr422 1322 2004 683 28 0 .782 .31 1.46 .224 .695 .422 2.85 .419 .003 1 33 gmr431 1490 2004 515 21 0 .800 .25 .84 .129 .544 .402 2.62 .382 .014 1 34 gmr501 1720 2004 285 12 0 .891 .25 .87 .143 .598 .431 2.60 .364 -.021 1 35 gmr502 1570 2004 435 18 0 .873 .31 1.01 .173 .622 .412 2.61 .338 -.010 1 36 gmr541 1359 2004 646 26 0 .731 .26 1.14 .145 .724 .318 2.58 .318 -.021 1 37 gmr011 1429 2000 572 23 0 .904 .41 1.17 .195 .570 .378 2.59 .350 .001 1 38 gmr012 1489 2000 512 21 0 .899 .45 1.42 .239 .686 .346 2.64 .391 -.014 2 39 gmr021 1664 2000 337 14 0 .896 .45 1.59 .236 .725 .330 2.59 .394 -.035 1 40 gmr022 1556 2000 445 18 0 .868 .47 1.72 .276 .684 .372 2.60 .323 -.021 1 41 gmr031 1687 1880 194 8 0 .853 .32 .99 .191 .765 .330 2.55 .380 -.061 1 42 gmr032 1673 2000 328 14 0 .812 .36 1.18 .161 .669 .301 2.62 .342 -.013 2 43 gmr041 1680 2000 321 13 0 .875 .68 2.46 .411 .721 .367 2.54 .369 -.006 1 44 gmr042 1660 2000 341 14 0 .899 .51 2.12 .310 .693 .397 2.74 .431 -.010 1 45 gmr051 1698 2000 303 13 0 .855 .67 2.21 .335 .620 .335 2.60 .328 -.014 1 46 gmr052 1674 1987 314 13 0 .852 .67 2.09 .345 .690 .310 2.57 .364 -.019 1 47 gmr111 1430 2000 571 23 0 .887 .52 2.78 .394 .781 .397 2.78 .399 -.021 2 48 gmr112 1433 2000 568 23 0 .895 .47 2.03 .284 .713 .395 2.72 .316 .000 1 PART 7: DESCRIPTIVE STATISTICS: Green Mountain Reservoir update 16:40 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 () --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- 49 gmr121 1433 1745 313 12 0 .870 .56 2.33 .392 .771 .339 3.01 .420 .001 1 50 gmr121 1760 2000 241 10 0 .869 .26 .68 .120 .620 .377 2.57 .402 .006 1 51 gmr122 1450 2000 551 22 0 .847 .42 2.90 .399 .839 .373 2.83 .416 -.025 2 52 gmr131 1569 2000 432 18 0 .789 .51 1.88 .336 .731 .420 2.70 .347 -.021 1 53 gmr141 1435 2000 566 23 0 .769 .33 1.98 .267 .857 .334 2.59 .328 -.006 2 54 gmr142 1460 2000 541 22 0 .741 .32 2.15 .270 .883 .305 2.75 .381 -.035 8 55 gmr151 1665 1999 335 13 0 .865 .55 1.53 .310 .850 .292 2.62 .345 -.012 1 56 gmr211 1408 1892 485 19 0 .890 .36 1.33 .213 .678 .392 2.74 .421 -.021 1 57 gmr213 1408 1672 265 10 0 .869 .39 1.32 .223 .654 .424 2.66 .421 -.028 1 58 gmr212 1497 2000 504 21 0 .884 .35 1.26 .184 .544 .405 2.60 .345 -.012 1 59 gmr221 1437 2000 564 23 0 .873 .33 1.09 .172 .613 .359 2.52 .355 -.023 1 60 gmr222 1450 1801 352 14 0 .844 .29 .84 .129 .471 .383 2.58 .332 -.023 1 61 gmr251 1378 1849 472 18 0 .900 .42 2.00 .309 .725 .452 2.63 .338 -.014 1 62 gmr252 1465 1830 366 15 0 .942 .38 1.73 .317 .777 .443 2.61 .367 -.020 1 63 gmr152 1559 1997 439 17 0 .856 .69 1.63 .346 .775 .298 2.52 .343 -.013 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 26587 1072 0 .833 .37 2.90 .227 .676 .390 3.01 .376 -.013