East Side Trail, Boise National Forest, Idaho - id015 Additional Site Information David Wilkins and Amy Cutter Purpose of Collection: Climatology - precipitation analyses Detrending: 100-year moving splines Cores Stored at: The cores are kept in the Quaternary Environments Lab in the Environmental Research Building, Boise State University. They are available for examination. Reference: Cutter, A. and Wilkins, D. (2012). Development of a tree-ring chronology for the Boise Front. Idaho NSF EPSCoR REU Summer Research Conference, Boise State University, July 29, 2012. NOTES: The site, East Side Trail (est), occupies a SSW facing, 30 - 40 deg steep, slope adjacent to the Bogus Basin Ski Area in the Boise National Forest. The area is underlain by fractured granite mantled by shallow soil, and has a sparse to dense understory of grass and shrubs. The dominant large woody species are PIPO and PSME. The site is downhill from a bike/hiking trail in the Ridge to River Trail System, is accessible by Bogus Basin Road approximately 17 miles by road from downtown Boise. Most cores were collected in the Fall of 2011 by students (including the second investigator - Cutter) and faculty (including the lead investigator - Wilkins) in an undergraduate water resource and climate field course. Additional cores were collected in the summer of 2012. The purpose of the collection was to be able to develop a ponderosa chronology to be used for climate and fire studies. The cores were mounted and prepared by the lead investigator, and dating/crossdating/measurements done by the second investigator under the lead's supervision. Measurements of ring widths were done using J2X on a Velmex .01 precision stage with a 10-40X zoom stereo scope. Crossdating was confirmed using COFECHA, with three problem segments that couldn't be rectified through remeasurement. The chronologies were created using 100-year moving splines. COFECHA output: Chronology file name : ID015.CRN Measurement file name : ID015.RWL Date checked : 11OCT12 Checked by : B. Bauer Beginning year : 1488 Ending year : 2011 Principal investigators: David Wilkins Amy Cutter Site name : East Side Trail Site location : Idaho Species information : PIPO PONDEROSA PINE Latitude : 4345 Longitude : -11606 Elevation : 1825M Series intercorrelation: 0.654 Avg mean sensitivity : 0.270 Avg standard deviation : 0.813 Avg autocorrelation : 0.801 Number dated series : 34 Segment length tested : 50 Number problem segments: 3 Pct problem segments : 0.95 PART 5: CORRELATION OF SERIES BY SEGMENTS: East Side Trail 09:38 Thu 11 Oct 2012 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 1600 1625 1650 1675 1700 1725 1750 1775 1800 1825 1850 1875 1900 1925 1950 1975 1649 1674 1699 1724 1749 1774 1799 1824 1849 1874 1899 1924 1949 1974 1999 2024 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 est.001a 1873 2010 .62 .62 .68 .72 .71 .73 2 est.002b 1777 2010 .59 .75 .81 .84 .83 .76 .65 .67 .73 3 est.003a 1757 2010 .66 .66 .76 .64 .70 .77 .63 .61 .57 .69 4 est.003b 1757 2010 .56 .52 .66 .67 .79 .82 .72 .58 .60 .69 5 est.004a 1614 2010 .48 .54 .50 .60 .63 .69 .72 .70 .67 .67 .84 .79 .58 .68 .70 .74 6 est.004b 1488 2011 .48 .54 .41 .36B .39 .54 .43 .39 .58 .66 .71 .75 .71 .52 .52 .43 7 est.005b 1827 2010 .52 .78 .79 .71 .61 .59 .60 8 est.005a 1817 2010 .68 .71 .78 .71 .66 .65 .61 .65 9 est.008b 1746 2010 .65 .66 .63 .59 .55 .48 .52 .66 .50 .54 .51 10 est.010a 1794 2010 .54 .59 .53 .69 .82 .74 .66 .71 .80 11 est.010b 1825 2010 .75 .89 .81 .66 .52 .57 .74 12 est.011b 1823 2010 .63 .64 .79 .78 .65 .60 .65 .67 13 est.012a 1783 2010 .79 .81 .86 .89 .85 .74 .70 .71 .80 14 est.012b 1785 2010 .74 .81 .79 .85 .86 .66 .56 .60 .69 15 est.o13a 1817 2010 .65 .68 .81 .82 .70 .64 .67 .70 16 est.014a 1816 2010 .54 .59 .80 .69 .51 .67 .55 .65 17 est.015a 1800 2010 .70 .71 .69 .73 .83 .77 .76 .55 18 est.015b 1787 2010 .76 .69 .71 .72 .64 .59 .65 .72 .70 19 est.016a 1773 2010 .46 .46 .44 .43 .66 .70 .68 .72 .64 .61 20 est.018a 1789 2010 .47 .51 .64 .57 .60 .73 .58 .58 .51 21 est.019a 1798 2010 .70 .69 .66 .73 .77 .73 .63 .55 .65 22 est.019b 1834 2010 .65 .77 .80 .79 .74 .69 .69 23 est.021b 1863 2011 .68 .78 .63 .44 .52 .61 24 est.021a 1861 2011 .39 .62 .68 .45 .51 .63 25 est.022b 1747 2011 .69 .69 .78 .79 .76 .79 .76 .72 .61 .59 .59 26 est.024a 1718 2011 .59 .59 .57 .77 .66 .68 .82 .76 .69 .68 .73 .79 27 est.024b 1711 2011 .62 .62 .60 .58 .66 .65 .69 .77 .73 .62 .72 .71 28 est.023a 1838 2011 .38 .47 .79 .55 .36 .48 .63 29 est.007b 1750 2010 .56 .57 .71 .75 .70 .63 .60 .49 .40 .29A 30 est.002a 1770 2010 .61 .65 .79 .77 .80 .86 .85 .64 .65 .80 31 est.013b 1832 2010 .61 .73 .69 .34 .48 .73 .57 32 est.006a 1833 2010 .49 .47 .59 .41 .31A .45 .47 33 est.017a 1671 2010 .50 .52 .43 .57 .69 .74 .77 .70 .75 .71 .61 .71 .70 .74 34 est.022a 1709 1981 .54 .37 .52 .75 .69 .61 .76 .74 .54 .51 .40 Av segment correlation .48 .54 .47 .49 .53 .59 .59 .64 .67 .65 .72 .74 .66 .60 .61 .65 PART 7: DESCRIPTIVE STATISTICS: East Side Trail 09:38 Thu 11 Oct 2012 Page 10 ----------------------------------------------------------------------------------------------------------------------------------- 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 est.001a 1873 2010 138 6 0 .687 2.53 4.55 .780 .474 .250 2.91 .526 .030 2 2 est.002b 1777 2010 234 9 0 .744 1.45 5.34 1.021 .875 .280 2.62 .369 -.007 1 3 est.003a 1757 2010 254 10 0 .675 1.33 3.79 .783 .834 .262 2.67 .398 .006 1 4 est.003b 1757 2010 254 10 0 .685 1.71 4.32 .861 .817 .260 2.67 .445 .040 1 5 est.004a 1614 2010 397 16 0 .630 1.03 3.83 .705 .905 .209 2.57 .348 .031 2 6 est.004b 1488 2011 524 16 1 .521 .82 3.11 .526 .814 .294 2.65 .401 -.008 3 7 est.005b 1827 2010 184 7 0 .652 1.46 3.56 .529 .581 .263 2.74 .487 .038 1 8 est.005a 1817 2010 194 8 0 .679 1.32 4.38 .870 .828 .277 2.69 .363 -.007 1 9 est.008b 1746 2010 265 11 0 .582 1.42 4.88 .671 .521 .392 2.70 .453 .007 1 10 est.010a 1794 2010 217 9 0 .681 1.65 3.83 .676 .687 .266 2.61 .373 .054 3 11 est.010b 1825 2010 186 7 0 .722 2.29 5.18 .989 .759 .238 2.62 .479 .036 4 12 est.011b 1823 2010 188 8 0 .698 1.53 4.20 .933 .802 .306 2.77 .458 -.011 1 13 est.012a 1783 2010 228 9 0 .808 1.76 5.11 1.111 .881 .222 2.68 .394 .030 1 14 est.012b 1785 2010 226 9 0 .736 1.42 4.07 .981 .904 .223 2.54 .351 -.008 1 15 est.o13a 1817 2010 194 8 0 .709 1.76 4.42 .893 .811 .254 2.55 .396 .016 1 16 est.014a 1816 2010 195 8 0 .629 1.40 4.41 1.099 .922 .300 2.67 .456 .073 2 17 est.015a 1800 2010 211 8 0 .693 1.79 5.53 1.015 .867 .274 2.75 .463 .032 2 18 est.015b 1787 2010 224 9 0 .692 1.82 5.64 1.011 .837 .268 2.63 .452 .013 1 19 est.016a 1773 2010 238 10 0 .578 1.54 3.49 .576 .662 .250 2.69 .484 .024 2 20 est.018a 1789 2010 222 9 0 .564 1.81 5.07 1.030 .805 .261 2.73 .416 -.051 5 21 est.019a 1798 2010 213 9 0 .694 1.71 4.22 .832 .701 .292 2.65 .423 .019 1 22 est.019b 1834 2010 177 7 0 .710 1.01 3.65 .648 .784 .335 2.62 .456 .034 5 23 est.021b 1863 2011 149 6 0 .591 1.42 3.70 .556 .619 .289 2.55 .328 .005 1 24 est.021a 1861 2011 151 6 0 .577 1.57 4.89 .698 .761 .273 2.80 .405 .026 1 25 est.022b 1747 2011 265 11 0 .703 1.49 6.91 1.250 .879 .296 2.59 .379 .030 3 26 est.024a 1718 2011 294 12 0 .702 1.40 4.53 .786 .884 .225 2.58 .337 .029 2 27 est.024b 1711 2011 301 12 0 .674 1.33 3.84 .802 .903 .227 2.79 .477 .034 2 28 est.023a 1838 2011 174 7 0 .571 1.12 2.57 .530 .823 .266 2.53 .388 -.019 2 29 est.007b 1750 2010 261 10 1 .610 1.36 4.11 .853 .858 .292 2.55 .303 .010 3 30 est.002a 1770 2010 241 10 0 .752 1.61 5.32 1.082 .850 .292 2.63 .427 .018 2 31 est.013b 1832 2010 179 7 0 .610 1.16 3.69 .635 .801 .293 2.45 .284 .032 1 32 est.006a 1833 2010 178 7 1 .465 2.06 5.68 .848 .704 .248 2.71 .385 -.069 1 33 est.017a 1671 2010 340 14 0 .656 .92 2.95 .429 .803 .229 2.74 .424 .038 2 34 est.022a 1709 1981 273 11 0 .589 1.43 4.15 1.003 .883 .312 2.59 .410 -.016 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 7969 316 3 .654 1.45 6.91 .813 .801 .270 2.91 .408 .015