Dendrochronology (Park et. al. 2018 – Dendrochronologist Christopher Baisan)


a) Sample identifier (Dendro-Lab Key-code): CLS-19b
b) Sample certainly derives from a single tree (Y/N): Y
c) Site: Calaveras South Grove, Calaveras State Park, California, elevation 1,373 meters, Latitude: 38-16'19'' N
Longitude: 120-17'16'' W
d) Object type: Standing tree originally, fallen when sampled
e) Preservation: In forest
f) Sample type (e.g. core or slice): slice
g) Species: Sequoiadendron giganteum
h) No of rings: 423
i) Pith (Y/N): N
j) Bark (Y/N): N
k) Waney edge: N
l) Sapwood (Y/N): N
m) Methodology used for dating:

Graphically using the skeleton plot method (see Stokes M, Smiley T (1968) An Introduction. University of Arizona Press, Tucson) and then through statistical verification using Corina: CLS-19b is placed (with a T-score of 9.09) at 650-1073 against the master chronology with the full 423 year overlap against the master chronology which runs – 40 (astronomical years AD/BC with year 0) to 1995 AD/CE.

Dated individually (Y/N): Y

m) Raw ring width series:
Values are 1/1000 mm
Publicly deposited (Y/N): N - but master file CLS.crn is attached
n) Remainder of sample is stored in which archive?
Laboratory of Tree-Ring Research, University of Arizona
o) 14C-Lab-Numbers / Sampled rings / tree
Rings were dissected relative to the marked calendar dated rings present on the sample. In terms of the ring-width measurements below this means dissection began at ring 71 marked AD 721 and finished at ring 170 marked AD 820.
p) Location of the remaining part of the sampled tree, or of high-resolution images where the sample has been destroyed, is specified.

Remaining sample stored in Laboratory of Tree-Ring Laboratory Respository.