River Lake, Northwest Territories, Canada - cana290 Additional Site Information Sonia St-Onge Michael Pisaric Steve Kokelj Purpose of Collection: Climatology - precipitation analyses Detrend Method: Negative exponontial or linear regression with negative or 0 slope Cores are stored at: Department of Geography and Environmental Studies, Carleton University, Ottawa CANADA Attn: Michael Pisaric Notes: Samples were collected from rock outcrops in the Yellowknife region. There was little to no soil cover and ground cover was predominantly mosses and lichens. Reference: Pisaric, M.F.J., St-Onge, S.M. and Kokelj, S.V. In press. Tree-ring reconstruction of early-growing season precipitation from Yellowknife, Northwest Territories. Arctic, Antarctic and Alpine Research. Accepted June 24, 2009. COFECHA output: Chronology file name : CANA290.CRN Measurement file name : CANA290.RWL Date checked : 24JUL09 Checked by : B. Bauer Beginning year : 1829 Ending year : 2005 Principal investigators: Sonia St-Onge Michael Pisaric Steve Kokelj Site name : River Lake Site location : Canada Species information : PIBN JACK PINE Latitude : 6236 Longitude : -11408 Elevation : 195M Series intercorrelation: 0.659 Avg mean sensitivity : 0.343 Avg standard deviation : 0.207 Avg autocorrelation : 0.667 Number dated series : 57 Segment length tested : 50 Number problem segments: 3 Pct problem segments : 1.21 PART 5: CORRELATION OF SERIES BY SEGMENTS: River Lake 16:47 Fri 24 Jul 2009 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 1825 1850 1875 1900 1925 1950 1975 1874 1899 1924 1949 1974 1999 2024 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 RIV1A 1874 2005 .70 .71 .73 .69 .53 .51 2 RIV1B 1874 2005 .74 .74 .62 .51 .57 .57 3 RIV2A 1966 2005 .73 4 RIV2B 1964 2005 .56 5 RIV3A 1888 2005 .83 .76 .73 .83 .81 6 RIV3B 1891 2005 .82 .80 .76 .63 .61 7 RIV4A 1874 2005 .79 .80 .83 .80 .82 .82 8 RIV4B 1858 2005 .74 .71 .65 .75 .76 .77 9 RIV5A 1865 2005 .61 .63 .58 .59 .61 .66 10 RIV5B 1865 2005 .62 .70 .63 .46 .53 .56 11 RIV6A 1966 2005 .54 12 RIV6B 1964 2005 .45 13 RIV8A 1872 1943 .71 .73 .52 14 RIV8B 1873 1961 .65 .64 .42 .38 15 RIV9A 1864 2005 .75 .75 .83 .76 .49 .48 16 RIV9B 1867 2005 .60 .67 .66 .71 .80 .76 17 RIV10A 1890 2005 .73 .81 .76 .71 .70 18 RIV10B 1890 2005 .69 .80 .74 .70 .70 19 RIV11A 1890 2005 .83 .85 .79 .78 .82 20 RIV11B 1880 2005 .84 .83 .80 .79 .83 21 RIV12A 1864 1950 .64 .70 .81 .81 22 RIV12B 1864 1943 .61 .62 .70 23 RIV13A 1864 2005 .72 .75 .80 .76 .81 .81 24 RIV13B 1864 2005 .78 .74 .76 .79 .80 .81 25 RIV14A 1863 2005 .66 .60 .44 .46 .64 .65 26 RIV14B 1863 2005 .66 .60 .53 .34B .46 .52 27 RIV15A 1864 2005 .67 .60 .51 .59 .73 .74 28 RIV15B 1864 2005 .49 .56 .41 .45 .72 .67 29 RIV16A 1891 1990 .77 .80 .81 .74 30 RIV16B 1884 2003 .78 .76 .70 .70 .67 31 RIV17A 1964 2005 .63 32 RIV17B 1958 2005 .67 33 RIV18A 1880 2005 .58 .51 .59 .73 .74 34 RIV18B 1880 2005 .53 .56 .66 .68 .65 35 RIV19A 1829 2005 .41 .36 .41 .70 .55 .49 .49 36 RIV19B 1839 2005 .51 .50 .49 .64 .70 .64 .63 37 RIV20A 1880 2005 .69 .62 .55 .65 .62 38 RIV20B 1868 2004 .57 .51 .26A .31A .75 .71 39 RIV21A 1979 2005 .49 40 RIV22A 1864 2005 .63 .56 .48 .57 .62 .67 41 RIV22B 1864 2003 .72 .68 .62 .54 .65 .67 42 RIV23A 1965 2005 .73 43 RIV23B 1960 2003 .77 44 RIV24A 1950 2001 .63 .67 45 RIV24B 1950 2002 .35 .37 46 RIV25A 1862 2003 .76 .70 .63 .69 .62 .60 47 RIV25B 1864 2005 .75 .72 .73 .73 .63 .61 48 RIV26A 1965 2005 .71 49 RIV26B 1965 2005 .67 50 RIV27A 1881 2005 .81 .85 .85 .82 .81 51 RIV27B 1875 2005 .68 .62 .72 .85 .84 52 RIV28A 1870 2005 .65 .71 .75 .69 .68 .61 53 RIV28B 1870 2002 .48 .50 .62 .67 .78 .77 54 RIV29A 1871 2005 .56 .57 .66 .78 .87 .87 55 RIV29B 1872 2005 .61 .62 .65 .74 .70 .64 56 RIV30A 1965 2005 .74 57 RIV30B 1965 2005 .79 Av segment correlation .46 .65 .67 .66 .66 .68 .67 PART 7: DESCRIPTIVE STATISTICS: River Lake 16:47 Fri 24 Jul 2009 Page 9 ----------------------------------------------------------------------------------------------------------------------------------- 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 RIV1A 1874 2005 132 6 0 .646 .32 .81 .143 .625 .328 2.60 .470 .020 2 2 RIV1B 1874 2005 132 6 0 .629 .41 1.22 .213 .742 .275 2.77 .498 -.052 1 3 RIV2A 1966 2005 40 1 0 .727 .55 1.10 .206 .495 .300 2.68 .605 -.046 1 4 RIV2B 1964 2005 42 1 0 .556 .71 1.20 .220 .131 .347 2.44 .491 -.115 3 5 RIV3A 1888 2005 118 5 0 .799 .37 1.00 .199 .606 .431 2.52 .465 -.016 1 6 RIV3B 1891 2005 115 5 0 .710 .38 1.31 .285 .724 .515 2.63 .371 .039 2 7 RIV4A 1874 2005 132 6 0 .804 .32 .96 .215 .709 .411 2.70 .409 -.070 1 8 RIV4B 1858 2005 148 6 0 .718 .32 .90 .198 .742 .394 2.76 .503 -.051 1 9 RIV5A 1865 2005 141 6 0 .597 .30 .80 .145 .691 .292 2.75 .440 .074 1 10 RIV5B 1865 2005 141 6 0 .566 .52 2.67 .428 .835 .270 2.64 .412 -.035 1 11 RIV6A 1966 2005 40 1 0 .536 .64 1.40 .246 .714 .215 2.66 .551 -.059 1 12 RIV6B 1964 2005 42 1 0 .454 .60 .90 .141 .409 .217 2.54 .584 -.020 1 13 RIV8A 1872 1943 72 3 0 .573 .34 1.15 .243 .672 .394 2.54 .392 .077 2 14 RIV8B 1873 1961 89 4 0 .527 .36 1.36 .266 .670 .419 2.67 .457 -.006 1 15 RIV9A 1864 2005 142 6 0 .651 .33 1.20 .269 .844 .413 2.54 .373 -.016 1 16 RIV9B 1867 2005 139 6 0 .680 .35 1.09 .237 .824 .361 2.59 .502 .039 2 17 RIV10A 1890 2005 116 5 0 .732 .54 .91 .168 .313 .310 2.59 .442 .006 1 18 RIV10B 1890 2005 116 5 0 .705 .44 1.06 .217 .735 .310 2.60 .447 -.016 1 19 RIV11A 1890 2005 116 5 0 .805 .45 1.22 .202 .598 .344 2.56 .408 -.062 1 20 RIV11B 1880 2005 126 5 0 .809 .38 1.06 .163 .450 .363 2.50 .380 .040 1 21 RIV12A 1864 1950 87 4 0 .738 .30 .76 .135 .572 .395 2.56 .445 .067 1 22 RIV12B 1864 1943 80 3 0 .643 .47 1.09 .262 .810 .353 2.65 .452 -.026 1 23 RIV13A 1864 2005 142 6 0 .766 .21 .60 .089 .315 .404 2.77 .461 .004 1 24 RIV13B 1864 2005 142 6 0 .776 .23 .50 .093 .305 .417 2.51 .452 .005 1 25 RIV14A 1863 2005 143 6 0 .575 .28 .76 .138 .716 .275 2.69 .439 .006 1 26 RIV14B 1863 2005 143 6 1 .511 .32 .90 .162 .709 .282 2.67 .418 -.039 1 27 RIV15A 1864 2005 142 6 0 .646 .32 .93 .173 .809 .293 2.80 .518 .003 2 28 RIV15B 1864 2005 142 6 0 .534 .33 .82 .187 .831 .276 2.47 .368 -.024 2 29 RIV16A 1891 1990 100 4 0 .753 .37 1.09 .209 .600 .430 2.70 .435 -.019 1 30 RIV16B 1884 2003 120 5 0 .718 .25 1.48 .190 .606 .460 2.71 .454 .023 1 31 RIV17A 1964 2005 42 1 0 .631 .28 .59 .144 .475 .507 2.55 .574 -.103 1 32 RIV17B 1958 2005 48 1 0 .671 .41 1.14 .247 .632 .406 2.55 .448 -.028 1 33 RIV18A 1880 2005 126 5 0 .649 .46 1.20 .269 .775 .346 2.72 .485 -.025 2 34 RIV18B 1880 2005 126 5 0 .583 .45 1.27 .258 .765 .360 2.70 .474 -.021 2 35 RIV19A 1829 2005 177 7 0 .501 .42 1.26 .158 .673 .217 2.81 .457 .005 3 36 RIV19B 1839 2005 167 7 0 .577 .39 1.03 .149 .616 .251 2.82 .449 -.040 1 37 RIV20A 1880 2005 126 5 0 .606 .26 1.12 .212 .755 .459 2.57 .387 -.017 2 38 RIV20B 1868 2004 137 6 2 .529 .22 1.07 .203 .850 .425 2.77 .473 -.018 2 39 RIV21A 1979 2005 27 1 0 .493 1.02 1.98 .327 .309 .300 2.80 .716 -.173 1 40 RIV22A 1864 2005 142 6 0 .608 .24 .72 .145 .859 .232 2.79 .521 -.053 1 41 RIV22B 1864 2003 140 6 0 .660 .41 .95 .160 .710 .226 2.56 .381 -.055 1 42 RIV23A 1965 2005 41 1 0 .732 .59 1.04 .206 .436 .285 2.57 .494 .032 1 43 RIV23B 1960 2003 44 1 0 .768 .83 1.55 .373 .732 .305 2.55 .448 .053 1 44 RIV24A 1950 2001 52 2 0 .617 .61 1.37 .263 .731 .257 2.54 .432 .011 4 45 RIV24B 1950 2002 53 2 0 .332 .53 1.04 .191 .704 .234 2.69 .473 -.057 2 46 RIV25A 1862 2003 142 6 0 .662 .32 1.91 .226 .543 .409 2.98 .454 -.027 1 47 RIV25B 1864 2005 142 6 0 .690 .27 1.21 .225 .821 .383 2.69 .370 -.048 3 48 RIV26A 1965 2005 41 1 0 .712 .56 1.49 .282 .633 .371 2.78 .613 .107 1 PART 7: DESCRIPTIVE STATISTICS: River Lake 16:47 Fri 24 Jul 2009 Page 10 ----------------------------------------------------------------------------------------------------------------------------------- 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 RIV26B 1965 2005 41 1 0 .669 .62 1.88 .375 .670 .356 2.75 .617 -.021 1 50 RIV27A 1881 2005 125 5 0 .802 .39 1.07 .197 .651 .378 2.66 .459 -.001 1 51 RIV27B 1875 2005 131 5 0 .735 .42 1.52 .208 .493 .351 2.79 .384 -.059 1 52 RIV28A 1870 2005 136 6 0 .686 .31 1.09 .204 .771 .354 2.65 .443 -.038 1 53 RIV28B 1870 2002 133 6 0 .660 .35 1.72 .308 .840 .333 2.55 .427 -.032 1 54 RIV29A 1871 2005 135 6 0 .732 .63 1.50 .265 .507 .316 2.71 .515 -.043 2 55 RIV29B 1872 2005 134 6 0 .634 .25 1.11 .158 .751 .350 2.63 .495 -.048 1 56 RIV30A 1965 2005 41 1 0 .739 .45 .89 .181 .673 .233 2.69 .441 .053 1 57 RIV30B 1965 2005 41 1 0 .786 .75 1.55 .347 .564 .286 2.97 .535 .004 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 6070 247 3 .659 .38 2.67 .207 .667 .343 2.98 .452 -.016