Pigeon Creek, Oklahoma - OK037 Additional Site Information D. Stevenson T. Lynch R. Heineman R. Holeman D. Wilson K. Anderson and J. Guldin Purpose of Collection: Climatology - severe weather Detrending: First - Negative exponential or linear regression of any slope Second - Linear regression with negative slope Cores are stored at: Oklahoma State University Department of Natural Resources and Environmental Management Notes: This is a hillside site. Aspect is west; slope is about 25. Stand is part of a growth and yield study ongoing since 1987. Measurements taken at 5-year intervals. Stand suffered moderate damage in the December 2000 ice storms. Missing values are represented by -8888 in the ringwidth data file COFECHA output: Chronology file name : OK037.CRN Measurement file name : OK037.RWL Date checked : 19AUG14 Checked by : B. Bauer Beginning year : 1943 Ending year : 2009 Principal investigators: D. Stevenson T. Lynch R. Heineman R. Holeman D. Wilson K. Anderson and J. Guldin Site name : Pigeon Creek Site location : Oklahoma Species information : PIEC SHORTLEAF PINE Latitude : 3438 Longitude : -09432 Elevation : 334M Series intercorrelation: 0.677 Avg mean sensitivity : 0.268 Avg standard deviation : 1.078 Avg autocorrelation : 0.731 Number dated series : 16 Segment length tested : 50 Number problem segments: 3 Pct problem segments : 8.82 PART 5: CORRELATION OF SERIES BY SEGMENTS: Pigeon Creek 16:14 Tue 19 Aug 2014 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 p146t001 1951 2007 .65 .59 2 p146t002 1953 2000 .80 3 p146t003 1952 2007 .82 .81 4 p146t006 1958 2009 .73 .55 5 p146t007 1952 2009 .74 .66 6 p146t015 1955 2007 .71 .71 7 p146t019 1956 2007 .76 .78 8 p146t022 1950 2007 .81 .72 9 p146t030 1945 2007 .78 .77 .60 10 p146t035 1948 2007 .72 .72 .70 11 p146t037 1954 2007 .84 .83 12 p146t041 1959 2007 .63 13 p147t001 1943 2001 .30B .16B .14B 14 p147t002 1946 2007 .83 .74 .68 15 p147t005 1956 2009 .80 .77 16 p148t001 1952 2007 .70 .60 Av segment correlation .66 .71 .65 PART 7: DESCRIPTIVE STATISTICS: Pigeon Creek 16:14 Tue 19 Aug 2014 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 p146t001 1951 2007 57 2 0 .615 1.53 4.37 .766 .798 .246 2.69 .559 .087 1 2 p146t002 1953 2000 48 1 0 .802 1.43 3.26 .862 .866 .350 2.51 .505 -.114 1 3 p146t003 1952 2007 56 2 0 .759 1.92 3.33 .527 .488 .236 2.53 .430 -.018 1 4 p146t006 1958 2009 52 2 0 .564 1.66 4.88 .998 .802 .291 2.74 .498 -.105 1 5 p146t007 1952 2009 58 2 0 .672 2.14 4.09 .888 .717 .251 2.47 .379 -.033 1 6 p146t015 1955 2007 53 2 0 .711 1.32 4.44 .872 .837 .259 2.51 .456 -.015 1 7 p146t019 1956 2007 52 2 0 .750 1.70 3.78 .784 .795 .283 2.68 .479 .009 1 8 p146t022 1950 2007 58 2 0 .707 2.25 5.09 1.102 .805 .261 2.39 .458 -.030 1 9 p146t030 1945 2007 63 3 0 .669 2.50 7.30 1.323 .688 .280 2.70 .489 .018 1 10 p146t035 1948 2007 60 3 0 .707 1.83 3.68 .659 .677 .222 2.64 .555 .039 1 11 p146t037 1954 2007 54 2 0 .822 2.04 4.76 1.120 .783 .259 2.66 .532 .039 1 12 p146t041 1959 2007 49 1 0 .630 2.18 4.06 .810 .676 .234 2.55 .510 .070 1 13 p147t001 1943 2001 59 3 3 .284 .64 4.83 3.681 .733 .330 2.26 .337 -.063 1 14 p147t002 1946 2007 62 3 0 .764 1.92 5.38 1.122 .747 .274 2.52 .518 -.003 1 15 p147t005 1956 2009 54 2 0 .750 1.62 3.03 .576 .690 .241 2.39 .352 .017 1 16 p148t001 1952 2007 56 2 0 .642 2.53 4.46 .904 .629 .279 2.57 .431 .031 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 891 34 3 .677 1.83 7.30 1.078 .731 .268 2.74 .468 -.004