APIT, Northwest Territories, Canada - cana286 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 : CANA286.CRN Measurement file name : CANA286.RWL Date checked : 27JUL09 Checked by : B. Bauer Beginning year : 1858 Ending year : 2005 Principal investigators: Sonia St-Onge Michael Pisaric Steve Kokelj Site name : APIT Site location : Canada Species information : PIBN JACK PINE Latitude : 6229 Longitude : -11422 Elevation : 211M Series intercorrelation: 0.683 Avg mean sensitivity : 0.434 Avg standard deviation : 0.240 Avg autocorrelation : 0.620 Number dated series : 50 Segment length tested : 50 Number problem segments: 0 Pct problem segments : 0.00 PART 5: CORRELATION OF SERIES BY SEGMENTS: "A" Pit 10:12 Mon 27 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 1850 1875 1900 1925 1950 1975 1899 1924 1949 1974 1999 2024 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 APIT1A 1872 2005 .75 .73 .80 .79 .69 .68 2 APIT1B 1874 2005 .66 .66 .67 .62 .69 .68 3 APIT2A 1958 2005 .52 4 APIT2B 1958 2005 .62 5 APIT3A 1874 2005 .76 .76 .84 .70 .65 .75 6 APIT3B 1874 2005 .70 .70 .85 .85 .77 .77 7 APIT4A 1859 2005 .77 .83 .88 .84 .82 .80 8 APIT4B 1864 2005 .76 .75 .78 .79 .78 .79 9 APIT6A 1875 1980 .67 .79 .74 .62 10 APIT6B 1875 1981 .71 .80 .78 .74 11 APIT7A 1860 2005 .58 .63 .48 .38 .72 .69 12 APIT7B 1860 2004 .61 .70 .84 .67 .61 .53 13 APIT9A 1959 2005 .51 14 APIT9B 1964 2005 .38 15 APIT10A 1962 2005 .70 16 APIT10B 1958 1988 .75 17 APIT12A 1864 2005 .78 .69 .63 .65 .76 .75 18 APIT12B 1864 2005 .75 .71 .57 .56 .64 .64 19 APIT13A 1872 1950 .82 .81 .84 .83 20 APIT13B 1874 2005 .77 .76 .88 .71 .61 .60 21 APIT14A 1875 2005 .69 .82 .77 .69 .69 22 APIT14B 1886 1979 .63 .71 .66 .68 23 APIT15A 1958 2005 .80 24 APIT15B 1958 2005 .60 25 APIT16A 1958 2005 .70 26 APIT16B 1958 2005 .66 27 APIT17A 1958 2005 .58 28 APIT17B 1958 2005 .56 29 APIT18A 1958 2005 .80 30 APIT18B 1958 2005 .67 31 APIT19A 1863 1933 .55 .64 .66 32 APIT19B 1863 1950 .54 .61 .72 .73 33 APIT20E 1864 2005 .62 .62 .67 .80 .80 .78 34 APIT20F 1867 2005 .58 .57 .62 .72 .78 .78 35 APIT21A 1865 2005 .57 .63 .82 .76 .70 .68 36 APIT21B 1865 2005 .64 .68 .84 .75 .69 .68 37 APIT22A 1858 1980 .70 .78 .84 .76 .62 38 APIT22B 1860 1951 .74 .70 .72 .73 39 APIT23A 1860 2005 .76 .73 .75 .60 .58 .55 40 APIT23B 1860 1990 .52 .50 .63 .66 .63 41 APIT24A 1959 2005 .43 42 APIT24B 1959 2005 .63 43 APIT25A 1958 2004 .62 44 APIT25B 1958 2005 .52 45 APIT26A 1958 2005 .73 46 APIT26B 1958 2005 .82 47 APIT29A 1964 2005 .45 48 APIT29B 1964 2005 .60 49 APIT30A 1961 2005 .75 50 APIT30B 1961 2005 .79 Av segment correlation .68 .69 .75 .71 .66 .70 PART 7: DESCRIPTIVE STATISTICS: "A" Pit 10:12 Mon 27 Jul 2009 Page 8 ----------------------------------------------------------------------------------------------------------------------------------- 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 APIT1A 1872 2005 134 6 0 .750 .22 .89 .154 .636 .484 2.58 .378 -.048 1 2 APIT1B 1874 2005 132 6 0 .671 .26 1.14 .220 .727 .487 2.60 .406 .025 1 3 APIT2A 1958 2005 48 1 0 .520 .38 .99 .208 .608 .433 2.75 .489 -.074 1 4 APIT2B 1958 2005 48 1 0 .619 .62 2.35 .502 .771 .376 2.73 .515 -.142 1 5 APIT3A 1874 2005 132 6 0 .729 .36 1.20 .256 .736 .475 2.73 .433 -.004 1 6 APIT3B 1874 2005 132 6 0 .784 .44 1.26 .259 .609 .408 2.82 .421 .007 1 7 APIT4A 1859 2005 147 6 0 .814 .33 1.46 .262 .696 .474 2.59 .428 .007 1 8 APIT4B 1864 2005 142 6 0 .769 .27 1.25 .199 .651 .525 2.56 .452 .005 1 9 APIT6A 1875 1980 106 4 0 .673 .34 1.11 .249 .843 .336 2.81 .509 .079 2 10 APIT6B 1875 1981 107 4 0 .751 .34 1.12 .260 .808 .421 2.76 .514 -.030 1 11 APIT7A 1860 2005 146 6 0 .562 .25 .84 .167 .685 .380 2.68 .433 .029 1 12 APIT7B 1860 2004 145 6 0 .640 .30 .94 .194 .680 .368 2.83 .437 -.011 1 13 APIT9A 1959 2005 47 1 0 .514 .38 .94 .207 .540 .468 2.61 .552 -.024 1 14 APIT9B 1964 2005 42 1 0 .376 .48 1.52 .338 .719 .393 2.68 .600 -.036 1 15 APIT10A 1962 2005 44 1 0 .697 .16 .79 .140 .174 .801 3.08 .735 .103 1 16 APIT10B 1958 1988 31 1 0 .752 .38 1.10 .276 .144 .683 2.93 .716 .033 1 17 APIT12A 1864 2005 142 6 0 .707 .22 .71 .125 .583 .428 2.58 .392 -.047 1 18 APIT12B 1864 2005 142 6 0 .635 .22 .69 .136 .537 .441 2.60 .408 -.007 1 19 APIT13A 1872 1950 79 4 0 .822 .56 .97 .161 .435 .258 2.44 .401 .002 1 20 APIT13B 1874 2005 132 6 0 .745 .47 1.06 .261 .845 .274 2.52 .387 -.019 2 21 APIT14A 1875 2005 131 5 0 .720 .34 1.27 .229 .767 .389 2.55 .419 -.038 2 22 APIT14B 1886 1979 94 4 0 .636 .28 .89 .208 .774 .487 2.51 .411 -.034 1 23 APIT15A 1958 2005 48 1 0 .796 .25 .65 .147 .248 .570 2.93 .585 -.060 1 24 APIT15B 1958 2005 48 1 0 .601 .44 .99 .219 .289 .466 3.04 .696 -.104 1 25 APIT16A 1958 2005 48 1 0 .701 .56 1.55 .337 .486 .457 2.82 .667 -.033 1 26 APIT16B 1958 2005 48 1 0 .658 .54 1.34 .338 .467 .560 2.66 .523 -.062 1 27 APIT17A 1958 2005 48 1 0 .584 .69 1.44 .311 .405 .342 2.86 .630 .020 1 28 APIT17B 1958 2005 48 1 0 .558 .58 1.51 .343 .598 .420 2.85 .546 -.125 1 29 APIT18A 1958 2005 48 1 0 .797 .51 1.60 .308 .380 .525 2.81 .602 -.008 1 30 APIT18B 1958 2005 48 1 0 .668 .67 1.60 .358 .378 .464 2.89 .662 -.040 1 31 APIT19A 1863 1933 71 3 0 .580 .52 1.12 .208 .609 .285 2.78 .569 -.072 1 32 APIT19B 1863 1950 88 4 0 .692 .60 1.45 .305 .694 .318 2.52 .402 -.029 1 33 APIT20E 1864 2005 142 6 0 .731 .31 1.32 .259 .591 .566 2.66 .383 .010 1 34 APIT20F 1867 2005 139 6 0 .723 .36 1.23 .249 .504 .522 2.74 .401 .023 1 35 APIT21A 1865 2005 141 6 0 .691 .31 .79 .178 .734 .345 2.59 .385 -.009 1 36 APIT21B 1865 2005 141 6 0 .719 .39 1.30 .276 .772 .336 2.79 .457 -.033 1 37 APIT22A 1858 1980 123 5 0 .701 .37 1.54 .324 .826 .421 2.80 .489 .030 1 38 APIT22B 1860 1951 92 4 0 .727 .46 1.52 .312 .690 .402 2.90 .510 -.015 1 39 APIT23A 1860 2005 146 6 0 .661 .32 .95 .173 .716 .364 2.58 .389 -.028 1 40 APIT23B 1860 1990 131 5 0 .563 .27 .90 .165 .654 .406 2.85 .466 -.062 1 41 APIT24A 1959 2005 47 1 0 .426 .72 2.12 .443 .625 .451 2.68 .522 .027 1 42 APIT24B 1959 2005 47 1 0 .634 .82 1.70 .402 .396 .432 3.07 .710 .025 1 43 APIT25A 1958 2004 47 1 0 .621 .41 .87 .175 .461 .410 2.59 .478 -.015 1 44 APIT25B 1958 2005 48 1 0 .519 .67 1.51 .348 .667 .429 2.69 .566 -.028 1 45 APIT26A 1958 2005 48 1 0 .729 .85 1.72 .341 .254 .391 2.54 .461 -.056 1 46 APIT26B 1958 2005 48 1 0 .816 .57 1.07 .215 .227 .412 2.54 .473 -.040 1 47 APIT29A 1964 2005 42 1 0 .447 .80 2.50 .427 .472 .334 2.95 .504 .100 1 48 APIT29B 1964 2005 42 1 0 .598 .54 1.42 .260 .314 .431 2.71 .527 -.017 3 PART 7: DESCRIPTIVE STATISTICS: "A" Pit 10:12 Mon 27 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 () --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- 49 APIT30A 1961 2005 45 1 0 .748 .30 .89 .253 .348 .815 2.94 .466 -.061 1 50 APIT30B 1961 2005 45 1 0 .792 .28 .87 .242 .171 .862 3.02 .559 .020 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 4360 162 0 .683 .39 2.50 .240 .620 .434 3.08 .466 -.014