Ice Cut Dalton Highway, Alaska alnus - AK174 Additional Site Information Laia Andreu-Hayles, Kevin J. Anchukaitis, Javi Martin-Fernández, Rosanne D'Arrigo Reference: Laia Andreu-Hayles, Benjamin V. Gaglioti, Logan T. Berner, Mathieu Levesque, Kevin J. Anchukaitis, Scott J. Goetz and Rosanne D'Arrigo. 2020 in press. A narrow window of summer temperatures associated with shrub growth in Arctic Alaska. Environmental Research Letters, in press. doi: 10.1088/1748-9326/ab897f NOTES: North Slope, Alaska 2010 shrub ring-width data. Keywords: ring-width, shrub, Alaska Funding: US National Science Foundation PLR-1504134, PLR-1603473, AGS-1502150 COFECHA output: Chronology file name : AK174.CRN Measurement file name : AK174.RWL Date checked : 13MAY20 Checked by : B. Bauer Beginning year : 1920 Ending year : 2010 Principal investigators: L.Andreu-Hayles K.J.Anchukaitis J.Martin-Fernández R.D'Arrigo Site name : Ice Cut Dalton Highway Site location : Alaska Species information : ALCR AMERICAN GREEN ALDER Latitude : 6900 Longitude : -14848 Elevation : M Series intercorrelation: 0.732 Avg mean sensitivity : 0.499 Avg standard deviation : 0.337 Avg autocorrelation : 0.493 Number dated series : 31 Segment length tested : 50 Number problem segments: 0 Pct problem segments : 0.00 PART 5: CORRELATION OF SERIES BY SEGMENTS: Ice Cut alder 15:36 Wed 13 May 2020 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 1900 1925 1950 1975 1949 1974 1999 2024 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 AL01B1 1983 2010 .62 2 AL02A1 1981 2010 .77 3 AL02A2 1981 2010 .81 4 AL03A1 1982 2010 .57 5 AL03A2 1982 2010 .52 6 AL04A1 1979 2010 .67 7 AL04A2 1979 2010 .75 8 AL05B1 1962 2010 .73 9 AL06A1 1977 2010 .69 10 AL06A2 1977 2010 .77 11 AL07A1 1985 2010 .78 12 AL07A2 1985 2010 .81 13 AL08A1 1979 2010 .87 14 AL08A2 1979 2010 .85 15 AL08B1 1982 2010 .67 16 AL09A1 1964 2010 .53 17 AL09A2 1964 2010 .70 18 AL10A1 1920 2010 .76 .74 .65 .73 19 AL10A2 1920 2010 .78 .73 .63 .78 20 AL11A1 1979 2010 .74 21 AL11A2 1979 2010 .76 22 AL12A1 1981 2010 .75 23 AL12A2 1981 2010 .73 24 AL13A1 1986 2010 .74 25 AL13A2 1986 2010 .83 26 AL14A1 1979 2010 .82 27 AL14A2 1979 2010 .79 28 AL15A1 1971 2010 .68 29 AL15A2 1971 2010 .43 30 AL16A1 1985 2010 .83 31 AL16A2 1985 2010 .74 Av segment correlation .77 .73 .62 .75 PART 7: DESCRIPTIVE STATISTICS: Ice Cut alder 15:36 Wed 13 May 2020 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 AL01B1 1983 2010 28 1 0 .617 .39 1.35 .309 .589 .652 2.59 .582 -.055 1 2 AL02A1 1981 2010 30 1 0 .767 .53 1.21 .315 .490 .580 2.62 .702 .000 1 3 AL02A2 1981 2010 30 1 0 .814 .65 1.15 .310 .354 .536 2.45 .633 -.024 1 4 AL03A1 1982 2010 29 1 0 .572 .97 2.42 .491 -.044 .497 2.78 .584 .078 1 5 AL03A2 1982 2010 29 1 0 .523 .79 1.98 .453 .305 .553 2.63 .550 -.069 1 6 AL04A1 1979 2010 32 1 0 .670 .59 1.35 .347 .706 .406 2.55 .548 -.030 1 7 AL04A2 1979 2010 32 1 0 .752 .48 .98 .280 .688 .440 2.40 .599 .065 1 8 AL05B1 1962 2010 49 1 0 .742 .33 .88 .238 .228 .798 2.77 .745 -.023 1 9 AL06A1 1977 2010 34 1 0 .690 .45 1.00 .240 .606 .442 2.65 .631 -.139 1 10 AL06A2 1977 2010 34 1 0 .774 .40 .76 .177 .416 .453 2.76 .650 -.011 1 11 AL07A1 1985 2010 26 1 0 .783 .75 1.63 .465 .584 .510 2.63 .566 .184 1 12 AL07A2 1985 2010 26 1 0 .805 .67 1.66 .446 .591 .443 2.80 .627 .170 1 13 AL08A1 1979 2010 32 1 0 .891 .52 1.29 .298 .289 .665 2.64 .653 -.019 1 14 AL08A2 1979 2010 32 1 0 .903 .50 1.18 .290 .393 .633 2.68 .575 .036 1 15 AL08B1 1982 2010 29 1 0 .669 .50 1.25 .329 .434 .590 2.65 .728 -.142 2 16 AL09A1 1964 2010 47 1 0 .532 .65 2.21 .449 .686 .385 2.79 .530 .005 1 17 AL09A2 1964 2010 47 1 0 .695 .57 1.44 .291 .554 .414 2.61 .556 -.020 1 18 AL10A1 1920 2010 91 4 0 .764 .43 1.31 .302 .653 .436 2.49 .481 -.047 1 19 AL10A2 1920 2010 91 4 0 .741 .36 1.24 .286 .663 .496 2.57 .443 -.019 1 20 AL11A1 1979 2010 32 1 0 .743 .87 2.08 .544 .590 .429 2.63 .597 -.017 1 21 AL11A2 1979 2010 32 1 0 .755 .85 2.00 .466 .475 .447 2.56 .576 .031 1 22 AL12A1 1981 2010 30 1 0 .750 .91 1.72 .468 .506 .431 2.66 .605 .129 1 23 AL12A2 1981 2010 30 1 0 .732 .85 1.57 .450 .447 .479 2.53 .569 .079 1 24 AL13A1 1986 2010 25 1 0 .739 .81 1.49 .415 .167 .551 2.53 .624 .255 1 25 AL13A2 1986 2010 25 1 0 .833 .89 2.05 .465 .278 .475 2.54 .569 .138 1 26 AL14A1 1979 2010 32 1 0 .823 .46 .97 .257 .559 .523 2.63 .607 -.133 1 27 AL14A2 1979 2010 32 1 0 .795 .46 .98 .242 .456 .492 2.71 .655 -.109 1 28 AL15A1 1971 2010 40 1 0 .683 .47 .99 .250 .408 .537 2.52 .501 .077 1 29 AL15A2 1971 2010 40 1 0 .642 .47 .92 .225 .482 .497 2.46 .428 .139 1 30 AL16A1 1985 2010 26 1 0 .827 .91 1.81 .381 .630 .295 2.41 .522 .073 1 31 AL16A2 1985 2010 26 1 0 .740 .70 1.41 .342 .398 .420 2.61 .670 .013 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 1118 37 0 .732 .58 2.42 .337 .493 .499 2.80 .576 .010