The Dated Master Dendrochronology

What is a dated master dendrochronology? See figure at right:
Constructed from previously crossdated samples Is dated with calendar years, 1895 to 1926, in this case Often hundreds – if not thousands – of years long Time series of standardized growth indices Average of 1.0, normal growth Minimum of 0.0, below average to no growth Maximum of 2.0, above average to great growth Is marked as if it were a skeleton plot Small indices represented by long marks hanging down (e.g., 1919) Large indices represented by "b" marks (e.g., 1922 and 1926) Average indices represented by no marks

What is a dated master dendrochronology? See figure at right:

Constructed from previously crossdated samples
Is dated with calendar years, 1895 to 1926, in this case
Often hundreds – if not thousands – of years long
Time series of standardized growth indices
- Average of 1.0, normal growth
- Minimum of 0.0, below average to no growth
- Maximum of 2.0, above average to great growth
Is marked as if it were a skeleton plot
- Small indices represented by long marks hanging down (e.g., 1919)
- Large indices represented by "b" marks (e.g., 1922 and 1926)
- Average indices represented by no marks

When you try skeleton plotting for yourself, the master chronology can be shown or hidden:

There will be a "Master" button, as on the right
- Mouse click on it to hide or show the master
- Hint #1: The graphs can be resized for easier viewing (see Relative Scale)
- Hint #2: Move the master left or right by grabbing it anywhere with your mouse

Paul R. Sheppard
Laboratory of Tree-Ring Research, The University of Arizona
Tucson, Arizona 85721 USA
office: (520) 621-6474, fax: (520) 621-8229
Comments to: sheppard@ltrr.arizona.edu