SelbuPCAB: Difference between revisions
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==Correlations towards other references== | ==Correlations towards other references== | ||
;Analysis: | ;Analysis of the Master chronology (sel184): | ||
[[CDendro]], Algorithm: [[Proportion of last two years growth]] (2,0,T). Correlations between available references and '''sel184''' dated to 1937. Results sorted according to decreasing [[correlation coefficient values]]: | [[CDendro]], Algorithm: [[Proportion of last two years growth]] (2,0,T). Correlations between available references and '''sel184''' dated to 1937. Results sorted according to decreasing [[correlation coefficient values]]: | ||
<PRE> | <PRE> | ||
Line 33: | Line 33: | ||
This shows that this chronology may be very useful for dating high altitude spruce samples from the central Scandinavian mountains. | This shows that this chronology may be very useful for dating high altitude spruce samples from the central Scandinavian mountains. | ||
;Analysis towards swed312 (Björbo, Sweden), 250 m. a.s.l and 400 km from Trøndelag: | |||
[[CDendro]], Algorithm: [[Proportion of last two years growth]] (2,0,T) | |||
Correlations between available references in SelbuPCAB and | |||
[[swed312]]:<pre> | |||
T- Over | |||
Corr Test lap | |||
all... 0,38 7,80 363 based on 10 members | |||
vol178 0,52 5,19 76 1858-1934 | |||
sir179 0,50 4,86 74 1860-1934 | |||
hog178 0,47 6,41 149 1786-1935 | |||
sel184 0,39 7,94 363 1461-1937 Master chronology | |||
sto183 0,38 7,87 362 1461-1936 | |||
kul179 0,35 6,18 272 1662-1934 | |||
hil180 0,34 6,89 362 1559-1936 | |||
sor182 0,32 6,52 363 1555-1937 | |||
lia181 0,26 4,81 332 1605-1937 | |||
sel49 0,21 3,67 285 1460-1860 Trøndelag Selbu, Dry spruce | |||
</pre> | |||
According to this test, we may assume that a mean of vol178, sir179 and hog178, covering 1786-1935, may be useful for dating samples from a bit lower altitudes. | |||
==Downloads== | ==Downloads== |
Revision as of 19:59, 2 July 2009
SelbuPCAB, Picea abies chronologies from Selbu in Trøndelag, Norway AD 1460-1937, by Per Eidem, Published 1943[1] and digitalized by Arne Andersson.
sel184 is a mean chronology consisting of cores from 13 buildings in Trøndelag, not only Selbu, covering the timespan 1488-1874.
- 36 Luddumo, Selbu 5 logs
- 37 Nedre Solemshaugen, Selbu 3 logs
- 38 Botn, selbu 6 logs
- 39 Stiftagården Trondheim 6 logs
- 40 Dronningens gate 25, Trondheim 3 logs
- 41 Bakke church, Trondheim 3 logs
- 42 Hans Nissengården, Trondheim 6 logs
- 43 Røset, Selbu 6 logs
- 44 Eidem (Brennan), Selbu 2 logs
- 45 Leikvolltrø, Selbu 7 logs
- 46 Stiklestad vicarage, Verdal 3 logs
- 47 Vuku church, Verdal 8 logs
- 48 Lo church, Åsen 8 logs
In the chronology also is included the material from Storvollen, Selbu (sto183) and its very old dry spruce (1460-1860), which is also available separately (from an other publication) as sel49[2]
Correlations towards other references
- Analysis of the Master chronology (sel184)
CDendro, Algorithm: Proportion of last two years growth (2,0,T). Correlations between available references and sel184 dated to 1937. Results sorted according to decreasing correlation coefficient values:
T- Over Corr Test lap Husklapp 0,78 12,07 95 1842-2006 Huskläppen, Grövelsjön, Idre, Dalarna PCAB JAEMTUA_ 0,76 16,57 203 1616-1819 JAEMTUA1 Jämtland, historisch (>5 prov) PCAB swed011 0,70 15,51 258 1679-1978 Gallejour, Glommersträsk WIDTH_RING PCAB swed312 0,39 7,94 363 1574-2005 Bjorbo (and Grangarde), Dalarna PCAB
Husklapp JAEMTUA swed011 swed312
This shows that this chronology may be very useful for dating high altitude spruce samples from the central Scandinavian mountains.
- Analysis towards swed312 (Björbo, Sweden), 250 m. a.s.l and 400 km from Trøndelag
CDendro, Algorithm: Proportion of last two years growth (2,0,T) Correlations between available references in SelbuPCAB and
T- Over Corr Test lap all... 0,38 7,80 363 based on 10 members vol178 0,52 5,19 76 1858-1934 sir179 0,50 4,86 74 1860-1934 hog178 0,47 6,41 149 1786-1935 sel184 0,39 7,94 363 1461-1937 Master chronology sto183 0,38 7,87 362 1461-1936 kul179 0,35 6,18 272 1662-1934 hil180 0,34 6,89 362 1559-1936 sor182 0,32 6,52 363 1555-1937 lia181 0,26 4,81 332 1605-1937 sel49 0,21 3,67 285 1460-1860 Trøndelag Selbu, Dry spruce
According to this test, we may assume that a mean of vol178, sir179 and hog178, covering 1786-1935, may be useful for dating samples from a bit lower altitudes.