Fremont 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 : Fremont 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