SelbuPCAB

From Cybis Wiki
Jump to: navigation, search

SelbuPCAB, Picea abies chronologies from Selbu in Trøndelag, Norway AD (1460)-1555-1937, by Per Eidem, Published 1943[1] and digitalized by Arne Andersson. 63°13′N 11°01′E

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]. Unfortunately the two measurements of the old dry spruce is not very similar. Maybe at least one of them contains errors. The section before 1555 may therefore be removed.

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 swed312:
                  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.

Downloads

Notes

  1. Eidem, Per. Über Schwankungen im Dickenwachstum der Fichte (Picea abies) in Selbu, Norwegen. Nyt. Mag. Nat.83, 1943: pp. 145–189.
  2. Eidem, Per, 1953, dry spruce, table 49, Medd. fra det Norske Skogforsøksvesen bd XII hft 41
Personal tools