Confluencia, Neuquén, Argentina - ARGE068
Additional Site Information
Ricardo Villalba
Purpose of Collection: Climatology - temperature analyses
Measurement type: Total ring width
1st Detrending method:
Negative exponential or linear regression of any slope
Location of core material:
IANIGLA (Instituto Argentino de Nivología y Glaciología)
Bajada del Cerro s/n Parque San Martín
Mendoza
Argentina
References:
Villalba, R., and Veblen, T. Spatial and temporal variation in Austrocedrus
growth along the forest-steppe ecotone in northern Patagonia.
Canadian Journal Forestry Research.27:580-597 (1997)
Villalba, R., Cook, E., Jacoby, G., DArrigo, R., Veblen, T., and Jones, P.
Tree-ring based reconstructions of northern Patagonia presipitation
since AD 1600. The Holocene 8,6 (1998)pp.659-674
Villalba, R. and Veblen, T. Influences of large-scale climatic variability
on episodic tree mortality in Northern Patagonia.
Ecology, 79 (8),1998, pp.2624-2640
COFECHA output:
Chronology file name : ARGE068.CRN
Measurement file name : ARGE068.RWL
Date checked : 10MAR05
Checked by : H. ADAMS AND J. LUKAS
Beginning year : 1723
Ending year : 1989
Principal investigators: Ricardo Villalba
Site name : Confluencia 2
Site location : Argentina
Species information : AUCH CHILEAN CEDAR
Latitude : -4042
Longitude : -07109
Elevation : 1075M
Series intercorrelation: 0.683
Avg mean sensitivity : 0.264
Avg standard deviation : 0.663
Avg autocorrelation : 0.853
Number dated series : 25
Segment length tested : 50
Number problem segments: 3
Pct problem segments : 1.75
PART 5: CORRELATION OF SERIES BY SEGMENTS: arge068.rwl 14:12 Thu 10 Mar 2005 Page 5
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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 1725 1750 1775 1800 1825 1850 1875 1900 1925 1950
1774 1799 1824 1849 1874 1899 1924 1949 1974 1999
--- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
1 CF202A 1792 1989 .85 .84 .76 .77 .77 .80 .88 .88
2 CF206B 1852 1989 .76 .61 .53 .56 .58
3 CF211A 1781 1989 .81 .87 .73 .69 .45 .31A .48 .59
4 CF212B 1808 1989 .81 .79 .84 .73 .59 .74 .81
5 CF213B 1780 1953 .71 .87 .80 .77 .68 .54 .54
6 CF214B 1772 1875 .66 .74 .74 .68 .67
7 CF217B 1784 1989 .83 .84 .84 .85 .77 .82 .76 .76
8 CF218B 1793 1989 .72 .78 .80 .79 .78 .80 .83 .84
9 CF221C 1773 1989 .66 .66 .75 .75 .81 .72 .78 .86 .85
10 CF222A 1839 1989 .63 .61 .57 .70 .81 .78
11 CF223A 1803 1989 .62 .78 .85 .74 .78 .88 .90
12 CF224A 1783 1989 .42 .62 .69 .77 .73 .72 .81 .83
13 CF224B 1815 1989 .63 .64 .70 .69 .63 .73 .76
14 CF225B 1801 1989 .73 .80 .61 .53 .78 .78 .69
15 CF226A 1840 1989 .81 .79 .70 .79 .82 .77
16 CF228B 1849 1979 .74 .74 .73 .73 .65 .60
17 CF232A 1860 1989 .69 .60 .72 .76 .77
18 CF234A 1831 1989 .74 .77 .77 .59 .62 .71
19 CF237A 1814 1989 .83 .82 .84 .64 .65 .77 .80
20 CF239A 1855 1989 .84 .82 .72 .70 .72
21 CF240B 1791 1989 .72 .81 .72 .71 .75 .67 .60 .67
22 CF216A 1787 1931 .58 .68 .80 .75 .56 .54
23 CF219B 1736 1961 .67 .64 .56 .58 .50 .30A .26B .47 .43
24 CF219C 1723 1957 .55 .48 .45 .70 .83 .68 .56 .59 .49
25 CF238A 1898 1983 .55 .54 .52 .48
Av segment correlation .61 .61 .67 .75 .75 .73 .65 .66 .70 .74
PART 7: DESCRIPTIVE STATISTICS: arge068.rwl 14:12 Thu 10 Mar 2005 Page 6
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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 CF202A 1792 1989 198 8 0 .794 .99 3.67 .726 .912 .243 2.42 .264 -.033 2
2 CF206B 1852 1989 138 5 0 .607 1.21 2.65 .574 .838 .217 2.53 .397 .061 1
3 CF211A 1781 1989 209 8 1 .622 1.13 4.29 .933 .842 .367 2.68 .377 .020 6
4 CF212B 1808 1989 182 7 0 .749 .91 2.80 .599 .825 .259 2.53 .379 -.056 2
5 CF213B 1780 1953 174 7 0 .668 .74 2.44 .575 .910 .294 2.53 .327 .024 1
6 CF214B 1772 1875 104 5 0 .681 .60 1.28 .379 .917 .256 2.65 .491 .048 1
7 CF217B 1784 1989 206 8 0 .777 .94 3.09 .679 .906 .239 2.62 .370 -.030 1
8 CF218B 1793 1989 197 8 0 .776 .84 3.23 .682 .919 .243 2.69 .381 -.003 1
9 CF221C 1773 1989 217 9 0 .749 1.13 2.95 .612 .878 .193 2.57 .329 .003 1
10 CF222A 1839 1989 151 6 0 .658 .66 1.75 .398 .783 .316 2.71 .357 .036 1
11 CF223A 1803 1989 187 7 0 .774 .77 2.56 .379 .830 .210 2.60 .353 .004 1
12 CF224A 1783 1989 207 8 0 .667 .73 2.57 .507 .853 .287 2.45 .303 .017 2
13 CF224B 1815 1989 175 7 0 .684 .76 2.66 .464 .769 .291 2.54 .365 .019 2
14 CF225B 1801 1989 189 7 0 .674 .72 3.07 .673 .921 .316 2.67 .436 -.004 2
15 CF226A 1840 1989 150 6 0 .755 1.58 4.49 .823 .725 .281 2.62 .320 -.027 1
16 CF228B 1849 1979 131 6 0 .652 .80 1.92 .416 .792 .296 2.47 .356 -.030 1
17 CF232A 1860 1989 130 5 0 .672 .71 2.10 .387 .787 .291 2.64 .414 -.050 1
18 CF234A 1831 1989 159 6 0 .710 .89 4.07 .820 .921 .302 2.47 .387 -.018 3
19 CF237A 1814 1989 176 7 0 .735 1.25 4.55 .884 .884 .222 2.74 .497 -.019 1
20 CF239A 1855 1989 135 5 0 .760 1.05 2.30 .475 .810 .215 2.53 .321 -.013 1
21 CF240B 1791 1989 199 8 0 .697 .78 3.54 .708 .936 .192 2.79 .400 -.002 1
22 CF216A 1787 1931 145 6 0 .638 .44 1.03 .175 .532 .297 2.59 .434 .022 1
23 CF219B 1736 1961 226 9 2 .482 1.00 4.56 1.166 .937 .285 2.62 .348 -.005 1
24 CF219C 1723 1957 235 9 0 .569 1.66 4.51 1.279 .911 .237 2.60 .393 .041 4
25 CF238A 1898 1983 86 4 0 .391 .68 2.30 .350 .732 .290 2.55 .391 .026 1
--- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- --
Total or mean: 4306 171 3 .683 .94 4.56 .663 .853 .264 2.79 .372 .000