oolik Field Station, Alaska, laska d - AK190 Additional Site Information gata Buchwal M. Syndonia Bret-Harte Hannah Bailey Jeffrey M. Welker Chronology file name : AK190.CRN Measurement file name : AK190.RWL Date checked : 13MAY22 Checked by : NOAA Paleoclimatology Beginning year : 1905 Ending year : 2016 Principal investigators: gata Buchwal M. Syndonia Bret-Harte Hannah Bailey Jeffrey M. Welker Site name : oolik Field Station, Alaska Site location : laska d Species information : BESP BIRCH Latitude : 6838- Longitude : 14938 Elevation : 760 Series intercorrelation: 0.525 Avg mean sensitivity : 0.517 Avg standard deviation : 0.068 Avg autocorrelation : 0.446 Number dated series : 30 Segment length tested : 50 Number problem segments: 5 Pct problem segments : 12.50 PART 5: CORRELATION OF SERIES BY SEGMENTS: ak190 12:50 Fri 13 May 2022 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 1925 1950 1975 1974 1999 2024 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 DB07 1905 2014 .27B .54 .77 2 DB09 1929 2014 .20B .41 .49 3 DB40 1953 2015 .55 .68 4 DB06 1957 2014 .45 .51 5 DB05 1958 2014 .64 .73 6 DB32 1958 2014 .36 .45 7 DB42 1961 2014 .59 .69 8 DB33 1963 2014 .46 .49 9 DB08 1965 2014 .60 10 DB03 1966 2014 .65 11 DB04 1968 2014 .37 12 DB34 1973 2014 .51 13 DB30 1976 2014 .41 14 DB44 1980 2015 .47 15 DB43 1988 2014 .68 16 DB83 1988 2015 .75 17 DB85 1989 2015 .83 18 DB01 1990 2014 .55 19 DB28 1990 2014 .59 20 DB60 1990 2014 .23B 21 DB02 1991 2014 .58 22 DB15 1991 2014 .58 23 DB10 1992 2014 .53B 24 DB26 1993 2016 .67 25 DB72 1994 2015 .77 26 DB25 1995 2015 .64 27 DB31 1995 2014 .47 28 DB41 1996 2015 .71 29 DB19 1997 2016 .48B 30 DB16 1999 2016 .48 Av segment correlation .23 .51 .59 PART 7: DESCRIPTIVE STATISTICS: ak190 12:50 Fri 13 May 2022 Page 6 ------------------------------------------------------------------------------------------------------------------------------------ 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 DB07 1905 2014 110 3 1 .424 .09 .29 .051 .347 .544 2.91 .525 -.026 2 2 DB09 1929 2014 86 3 1 .288 .07 .23 .045 .414 .491 2.68 .487 -.132 4 3 DB40 1953 2015 63 2 0 .582 .10 .32 .059 .346 .578 2.83 .659 -.049 1 4 DB06 1957 2014 58 2 0 .431 .12 .35 .065 .215 .475 3.02 .573 -.044 1 5 DB05 1958 2014 57 2 0 .667 .15 .43 .103 .747 .421 2.47 .405 -.025 1 6 DB32 1958 2014 57 2 0 .420 .08 .27 .057 .440 .576 2.96 .636 -.087 1 7 DB42 1961 2014 54 2 0 .644 .09 .26 .047 .478 .421 2.51 .543 -.080 1 8 DB33 1963 2014 52 2 0 .494 .10 .31 .075 .744 .543 2.54 .560 -.078 1 9 DB08 1965 2014 50 1 0 .599 .08 .20 .042 .015 .548 2.86 .618 -.098 1 10 DB03 1966 2014 49 1 0 .649 .12 .47 .101 .663 .678 2.95 .605 -.023 1 11 DB04 1968 2014 47 1 0 .374 .11 .30 .065 .306 .576 2.65 .468 -.069 1 12 DB34 1973 2014 42 1 0 .508 .14 .30 .081 .172 .702 2.58 .614 -.071 1 13 DB30 1976 2014 39 1 0 .412 .08 .22 .057 .738 .395 2.71 .475 -.052 1 14 DB44 1980 2015 36 1 0 .471 .11 .44 .088 .511 .450 2.67 .595 -.022 1 15 DB43 1988 2014 27 1 0 .677 .11 .29 .054 .238 .427 2.73 .632 .009 1 16 DB83 1988 2015 28 1 0 .750 .11 .24 .050 .356 .396 2.76 .541 .087 1 17 DB85 1989 2015 27 1 0 .835 .10 .21 .052 .453 .439 2.73 .593 .074 1 18 DB01 1990 2014 25 1 0 .547 .13 .28 .066 .570 .438 2.85 .725 .023 2 19 DB28 1990 2014 25 1 0 .594 .09 .25 .050 .374 .485 2.66 .552 -.095 2 20 DB60 1990 2014 25 1 1 .228 .12 .30 .081 .526 .709 2.58 .543 .004 4 21 DB02 1991 2014 24 1 0 .576 .18 .46 .141 .794 .491 2.45 .494 .062 1 22 DB15 1991 2014 24 1 0 .579 .10 .26 .064 .468 .611 2.50 .498 -.072 2 23 DB10 1992 2014 23 1 1 .532 .19 .49 .130 .693 .565 2.85 .833 -.071 2 24 DB26 1993 2016 24 1 0 .671 .10 .21 .047 .643 .307 2.80 .576 -.022 1 25 DB72 1994 2015 22 1 0 .767 .15 .29 .075 .266 .558 2.50 .560 .089 1 26 DB25 1995 2015 21 1 0 .643 .10 .28 .065 .553 .543 2.61 .610 -.056 1 27 DB31 1995 2014 20 1 0 .469 .17 .47 .134 .373 .592 2.75 .664 -.053 1 28 DB41 1996 2015 20 1 0 .706 .13 .27 .075 .487 .426 2.70 .732 .096 1 29 DB19 1997 2016 20 1 1 .479 .13 .30 .075 .481 .569 2.63 .561 .074 1 30 DB16 1999 2016 18 1 0 .477 .13 .25 .058 .519 .324 2.62 .734 -.038 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 1173 40 5 .525 .11 .49 .068 .446 .517 3.02 .570 -.040