Nutter's Ridge, Utah - ut526 Additional Information Steve Gray 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 : UT526.CRN Measurement file name : UT526.RWL Date checked : 07JUN11 Checked by : B. Bauer Beginning year : 1040 Ending year : 2001 Principal investigators: Steve Gray Site name : Nutter's Ridge Site location : Utah Species information : PIED PINYON Latitude : 3949 Longitude : -11040 Elevation : 2235M Series intercorrelation: 0.791 Avg mean sensitivity : 0.413 Avg standard deviation : 0.095 Avg autocorrelation : 0.571 Number dated series : 20 Segment length tested : 50 Number problem segments: 0 Pct problem segments : 0.00 PART 5: CORRELATION OF SERIES BY SEGMENTS: Nutter's Ridge 16:54 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 1050 1075 1100 1125 1150 1175 1200 1225 1250 1275 1300 1325 1350 1375 1400 1425 1450 1475 1500 1525 1099 1124 1149 1174 1199 1224 1249 1274 1299 1324 1349 1374 1399 1424 1449 1474 1499 1524 1549 1574 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 4 nrl430a 1062 1979 .63 .67 .67 .77 .83 .85 .82 .66 .67 .71 .71 .79 .90 .82 .77 .87 .90 .87 .65 .68 7 nrl430b 1040 2001 .63 .67 .67 .77 .82 .77 .71 .84 .84 .68 .67 .89 .89 .85 .83 .86 .91 .88 .76 .81 9 nrt071a 1516 2001 .75 .78 11 nrl016b 1309 1522 .71 .80 .81 .81 .79 .74 .80 .84 12 nrl428a 1229 1559 .67 .72 .68 .66 .78 .74 .78 .67 .62 .75 .72 .71 .69 13 nrl017a 1226 1499 .77 .81 .74 .72 .84 .84 .82 .78 .70 .80 16 nrl429a 1280 2001 .58 .58 .68 .78 .78 .71 .78 .88 .85 .74 .68 17 nrl013a 1226 1624 .77 .75 .74 .72 .84 .91 .88 .85 .85 .77 .79 .82 .81 19 nrl013b 1283 1625 .69 .65 .82 .91 .90 .81 .77 .86 .86 .67 .70 20 nrl010b 1450 2001 .75 .76 .70 .64 Av segment correlation .63 .67 .67 .77 .83 .81 .76 .74 .76 .69 .68 .81 .85 .83 .78 .77 .83 .82 .72 .72 PART 5: CORRELATION OF SERIES BY SEGMENTS: Nutter's Ridge 16:54 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 1550 1575 1600 1625 1650 1675 1700 1725 1750 1775 1800 1825 1850 1875 1900 1925 1950 1975 1599 1624 1649 1674 1699 1724 1749 1774 1799 1824 1849 1874 1899 1924 1949 1974 1999 2024 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 nrl018a 1578 2001 .80 .70 .70 .82 .88 .89 .91 .92 .91 .93 .90 .85 .84 .86 .86 .86 .87 2 nrl018b 1603 2001 .69 .80 .85 .87 .90 .92 .91 .90 .92 .93 .90 .79 .77 .83 .76 .78 3 nrl019a 1554 1898 .72 .76 .84 .80 .78 .87 .83 .79 .85 .87 .86 .79 .74 4 nrl430a 1062 1979 .78 .67 .74 .74 .72 .70 .70 .80 .86 .81 .70 .68 .65 .63 .76 .66 .64 5 nrl081x 1592 2001 .68 .69 .65 .75 .81 .78 .83 .90 .76 .71 .75 .64 .61 .75 .81 .73 .75 6 nrl151a 1775 2000 .81 .75 .70 .69 .64 .61 .77 .70 .70 7 nrl430b 1040 2001 .80 .74 .71 .65 .74 .69 .60 .73 .75 .78 .82 .82 .80 .75 .78 .80 .72 .73 8 nrt006a 1642 2001 .77 .83 .69 .67 .81 .85 .82 .71 .66 .78 .78 .79 .83 .76 .76 9 nrt071a 1516 2001 .83 .74 .80 .82 .80 .72 .71 .82 .89 .92 .85 .83 .89 .75 .81 .88 .81 .82 10 nrt002b 1576 2001 .75 .67 .67 .75 .80 .84 .87 .84 .77 .84 .89 .92 .85 .73 .84 .87 .87 14 nrl005a 1590 1975 .67 .73 .72 .73 .69 .77 .85 .84 .74 .82 .85 .78 .75 .83 .89 .89 15 nrl011a 1603 2001 .75 .77 .80 .88 .88 .90 .86 .81 .82 .83 .79 .65 .66 .78 .74 .75 16 nrl429a 1280 2001 .70 .75 .87 .81 .68 .78 .83 .82 .87 .84 .84 .86 .82 .80 .75 .73 .75 .77 17 nrl013a 1226 1624 .88 .85 18 nrl006b 1565 2001 .60 .68 .75 .79 .83 .81 .82 .86 .86 .82 .65 .57 .68 .58 .74 .88 .75 .76 19 nrl013b 1283 1625 .89 .85 .84 20 nrl010b 1450 2001 .74 .80 .79 .82 .83 .81 .83 .87 .90 .92 .89 .89 .91 .85 .90 .93 .88 .89 Av segment correlation .77 .75 .75 .75 .78 .79 .79 .84 .86 .83 .81 .80 .79 .73 .77 .82 .77 .79 PART 7: DESCRIPTIVE STATISTICS: Nutter's Ridge 16:54 Tue 07 Jun 2011 Page 13 ----------------------------------------------------------------------------------------------------------------------------------- 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 nrl018a 1578 2001 424 17 0 .842 .24 .73 .103 .540 .346 2.57 .331 -.007 1 2 nrl018b 1603 2001 399 16 0 .828 .21 .57 .082 .428 .352 2.59 .335 -.026 1 3 nrl019a 1554 1898 345 13 0 .798 .31 .75 .121 .645 .298 2.49 .303 .010 1 4 nrl430a 1062 1979 918 37 0 .746 .17 .47 .075 .495 .421 2.55 .307 -.022 1 5 nrl081x 1592 2001 410 17 0 .737 .35 .80 .121 .620 .254 2.38 .319 -.037 1 6 nrl151a 1775 2000 226 9 0 .705 .18 .40 .074 .509 .378 2.46 .269 -.018 1 7 nrl430b 1040 2001 962 38 0 .793 .14 .39 .069 .513 .473 2.56 .340 -.020 1 8 nrt006a 1642 2001 360 15 0 .763 .30 .78 .125 .491 .349 2.58 .371 .013 1 9 nrt071a 1516 2001 486 20 0 .819 .14 .41 .066 .489 .445 2.58 .339 -.028 1 10 nrt002b 1576 2001 426 17 0 .826 .18 .63 .095 .619 .422 2.46 .291 -.015 1 11 nrl016b 1309 1522 214 8 0 .820 .21 .94 .157 .749 .544 2.47 .397 -.013 1 12 nrl428a 1229 1559 331 13 0 .740 .11 .38 .067 .592 .566 2.39 .333 -.022 3 13 nrl017a 1226 1499 274 10 0 .830 .17 .42 .081 .596 .415 2.43 .329 -.017 1 14 nrl005a 1590 1975 386 16 0 .805 .17 .80 .120 .733 .485 2.61 .387 .010 1 15 nrl011a 1603 2001 399 16 0 .803 .21 .75 .093 .742 .287 2.51 .329 -.021 1 16 nrl429a 1280 2001 722 29 0 .772 .18 .57 .082 .614 .373 2.47 .278 -.007 1 17 nrl013a 1226 1624 399 15 0 .829 .18 .50 .095 .544 .478 2.51 .334 -.010 1 18 nrl006b 1565 2001 437 18 0 .741 .27 .76 .121 .601 .361 2.68 .436 -.001 1 19 nrl013b 1283 1625 343 14 0 .818 .18 .75 .095 .632 .467 2.53 .326 -.004 1 20 nrl010b 1450 2001 552 22 0 .841 .24 .76 .131 .523 .511 2.53 .340 .023 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 9013 360 0 .791 .20 .94 .095 .571 .413 2.68 .332 -.011