West Hill Dam, Massachusetts - MA034 Additional Site Information Jessie Pearl, Kevin Anchukaitis, Neil Pederson, Jeffrey Donnelly Reference: Jessie Pearl, Kevin Anchukaitis, Neil Pederson, Jeffrey Donnelly. 2020. Multivariate Climate Field Reconstructions Using Tree Rings for the Northeastern United States. Journal of Geophysical Research: Atmospheres, Vol. 125, Issue 1, DOI: 10.1029/2019JD031619 NOTES: These data were collected as part of northeastern United States network of Atlantic white cedar. They were used to generate a gridded temperature reconstruction for the region. Two or three cores per tree were extracted from each tree and labelled as "A", "B" or "C". Funding: US National Science Foundation grants P2C2; AGS-1304262, and AGS-1501856 COFECHA output: Chronology file name : MA034.CRN Measurement file name : MA034.RWL Date checked : 14FEB20 Checked by : B. Bauer Beginning year : 1883 Ending year : 2015 Principal investigators: Jessie Pearl Kevin Anchukaitis Neil Pederson Jeffrey Donnelly Site name : West Hill Dam Site location : Mass. Species information : CHTH ATLANTIC WHITE-CEDAR Latitude : 4206 Longitude : -07237 Elevation : 80M Series intercorrelation: 0.581 Avg mean sensitivity : 0.245 Avg standard deviation : 0.845 Avg autocorrelation : 0.676 Number dated series : 42 Segment length tested : 50 Number problem segments: 7 Pct problem segments : 5.98 PART 5: CORRELATION OF SERIES BY SEGMENTS: West Hill Dam 11:14 Sat 14 Feb 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 1875 1900 1925 1950 1975 1924 1949 1974 1999 2024 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 WDHD18A 1944 2015 .50 .61 .61 2 WHD01A 1941 2015 .44 .42 .29A 3 WHD01B 1947 2015 .43B .54 .52 4 WHD01C 1945 2015 .51 .66 .61 5 WHD02A 1942 2015 .42B .68 .69 6 WHD02B 1953 2015 .57 .56 7 WHD03A 1955 2015 .77 .74 8 WHD03B 1960 2015 .81 .82 9 WHD04A 1886 2015 .15B .42 .55 .66 .66 10 WHD04B 1883 2015 .02B .32B .65 .75 .73 11 WHD05A 1951 2015 .71 .66 12 WHD05B 1947 2015 .79 .79 .66 13 WHD06B 1940 2015 .51 .61 .47 14 WHD07A 1957 2015 .66 .66 15 WHD07B 1945 2015 .70 .79 .68 16 WHD08A 1945 2015 .67 .68 .70 17 WHD08B 1932 2015 .69 .55 .45 18 WHD09A 1952 2015 .68 .66 19 WHD09B 1959 2015 .80 .81 20 WHD10A 1930 2015 .59 .65 .57 21 WHD10B 1926 2015 .65 .80 .75 22 WHD11A 1962 2015 .63 .61 23 WHD11B 1969 2015 .48 24 WHD12A 1965 2015 .73 .71 25 WHD12B 1945 2015 .73 .77 .65 26 WHD13A 1924 2015 .72 .72 .67 .57 27 WHD13B 1935 2015 .74 .74 .68 28 WHD14A 1968 2015 .74 29 WHD14B 1955 2015 .62 .65 30 WHD15A 1933 2015 .59 .70 .60 31 WHD15B 1944 2015 .62 .61 .46 32 WHD16A 1949 2015 .48 .48 .34 33 WHD16B 1956 2015 .73 .70 34 WHD17A 1933 2015 .76 .67 .54 35 WHD17B 1938 2015 .76 .68 .53 36 WHD17C 1900 1949 .32A 37 WHD17C 1960 2015 .69 .57 38 WHD18B 1946 2015 .46 .52 .62 39 WHD20A 1898 2015 .33 .42 .65 .63 .51 40 WHD20B 1913 2015 .42 .57 .70 .60 41 WHD21A 1921 2015 .56 .57 .53 .49 42 WHD21B 1940 2015 .60 .68 .57 Av segment correlation .17 .45 .61 .66 .61 PART 7: DESCRIPTIVE STATISTICS: West Hill Dam 11:14 Sat 14 Feb 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 WDHD18A 1944 2015 72 3 0 .550 2.37 4.19 .797 .581 .251 2.63 .447 .038 1 2 WHD01A 1941 2015 75 3 1 .365 2.42 4.72 .736 .431 .256 2.68 .560 -.041 2 3 WHD01B 1947 2015 69 3 1 .530 1.46 2.45 .416 .595 .219 2.64 .595 -.003 2 4 WHD01C 1945 2015 71 3 0 .548 1.73 2.91 .515 .448 .253 2.56 .428 .056 1 5 WHD02A 1942 2015 74 3 1 .501 2.43 4.02 .683 .615 .200 2.42 .392 -.011 1 6 WHD02B 1953 2015 63 2 0 .594 2.18 4.12 .799 .519 .314 2.58 .370 .096 1 7 WHD03A 1955 2015 61 2 0 .763 2.35 4.45 .914 .761 .215 2.51 .517 .137 1 8 WHD03B 1960 2015 56 2 0 .807 2.88 4.18 .702 .299 .242 2.58 .563 .011 1 9 WHD04A 1886 2015 130 5 1 .487 1.57 4.52 1.269 .904 .297 2.55 .463 -.013 1 10 WHD04B 1883 2015 133 5 2 .504 1.32 3.70 .920 .836 .315 2.60 .376 .034 1 11 WHD05A 1951 2015 65 2 0 .676 2.45 4.20 .778 .664 .213 2.69 .490 .084 1 12 WHD05B 1947 2015 69 3 0 .704 2.83 4.56 .713 .487 .210 2.56 .512 .025 1 13 WHD06B 1940 2015 76 3 0 .501 2.04 3.49 .734 .619 .267 2.48 .376 -.014 2 14 WHD07A 1957 2015 59 2 0 .668 2.18 4.54 .836 .474 .314 2.52 .448 -.013 2 15 WHD07B 1945 2015 71 3 0 .672 2.26 3.97 .733 .694 .210 2.49 .421 .098 1 16 WHD08A 1945 2015 71 3 0 .650 2.09 4.89 .786 .835 .166 2.43 .455 .024 2 17 WHD08B 1932 2015 84 3 0 .478 2.05 3.89 .718 .728 .223 2.53 .422 .010 1 18 WHD09A 1952 2015 64 2 0 .663 2.16 4.62 .673 .683 .197 2.51 .537 .034 2 19 WHD09B 1959 2015 57 2 0 .778 2.55 4.07 .724 .571 .235 2.52 .534 .100 1 20 WHD10A 1930 2015 86 3 0 .587 1.78 3.23 .542 .720 .190 2.69 .564 .014 2 21 WHD10B 1926 2015 90 3 0 .686 2.31 4.32 .804 .669 .228 2.60 .507 .046 1 22 WHD11A 1962 2015 54 2 0 .637 2.77 3.94 .720 .631 .193 2.64 .493 -.002 1 23 WHD11B 1969 2015 47 1 0 .483 2.76 4.59 .731 .674 .169 2.82 .463 .023 1 24 WHD12A 1965 2015 51 2 0 .715 2.37 3.63 .714 .756 .176 2.55 .440 .007 1 25 WHD12B 1945 2015 71 3 0 .595 2.55 4.31 .898 .766 .209 2.57 .508 .014 2 26 WHD13A 1924 2015 92 4 0 .587 1.79 4.63 1.042 .860 .324 2.75 .460 .025 3 27 WHD13B 1935 2015 81 3 0 .696 1.63 3.84 1.015 .877 .307 2.54 .479 .075 1 28 WHD14A 1968 2015 48 1 0 .736 3.12 6.05 1.012 .676 .216 2.67 .613 -.063 3 29 WHD14B 1955 2015 61 2 0 .600 3.93 7.45 1.225 .703 .199 2.74 .501 .052 1 30 WHD15A 1933 2015 83 3 0 .564 1.77 3.76 .727 .781 .263 2.58 .475 -.035 1 31 WHD15B 1944 2015 72 3 0 .569 2.00 4.16 .605 .683 .195 2.57 .415 .048 1 32 WHD16A 1949 2015 67 3 0 .397 2.29 3.54 .606 .505 .216 2.81 .553 .046 2 33 WHD16B 1956 2015 60 2 0 .725 1.79 2.98 .502 .580 .217 2.50 .430 -.020 1 34 WHD17A 1933 2015 83 3 0 .642 1.41 2.95 .471 .591 .237 2.57 .447 .167 1 35 WHD17B 1938 2015 78 3 0 .624 1.59 2.79 .500 .427 .284 2.63 .474 .046 2 36 WHD17C 1900 1949 50 1 1 .318 12.70 27.28 6.085 .246 .416 2.56 .579 -.096 1 37 WHD17C 1960 2015 56 2 0 .603 1.14 1.87 .406 .603 .293 2.51 .448 .013 1 38 WHD18B 1946 2015 70 3 0 .563 1.98 3.38 .612 .525 .280 2.62 .515 .021 1 39 WHD20A 1898 2015 118 5 0 .481 1.37 3.51 .969 .952 .205 2.51 .333 -.014 1 40 WHD20B 1913 2015 103 4 0 .533 1.17 2.38 .716 .923 .256 2.50 .361 .024 1 41 WHD21A 1921 2015 95 4 0 .482 1.18 2.67 .555 .715 .257 3.03 .459 .104 1 42 WHD21B 1940 2015 76 3 0 .547 1.64 3.05 .702 .759 .262 2.73 .511 -.075 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 3112 117 7 .581 2.17 27.28 .845 .676 .245 3.03 .467 .026