Sentences with phrase «tree ring density»

The reason for the decline in tree ring density in the late 20th century could be increased nitrogen deposition.

What is the difference between tree ring density and tree ring width?

For example, see Briffa, K. R., et al. (2001): «Low - frequency temperature variations from a northern tree ring density network.»

While tree - ring width in some places stops correlating with temperature after 1950, possibly due to moisture stress or changes in seasonality due to warming, tree ring density at the site studied continues to track temperature.

Networks of tree ring width and tree ring density chronologies are used to infer past temperature changes based on calibration with temporally overlapping instrumental data.

For example, see Briffa, K. R., et al. (2001): «Low - frequency temperature variations from a northern tree ring density network.»

Huybers comments on tree ring densities, which have much lower variances than widths, even after conversion to dimensionless «standardized» form.

While most are tree ring width, a few of them are tree ring density — care to explain how they can all be in «common units»?

He is almost certainly referring to the tree ring density record divergence highlighted by Briffa et al (Nature, 1998) post 1960, which you may recall got some press a few months ago.

This is climate science after all, so my guess is that «tree ring density» is in fact «tree ring X-Ray absorbance».

I see further down that Steve M says it is mostly the tree ring density — not width — that is being addressed n the papers.

Why, in principle, CA N'T early records of one or more types (say, tree ring density, varve thickness, etc) be harmonized (I won't say «spliced», that would be a non-sensible thing to do) with later records of other types?

«Why, in principle, CA N'T early records of one or more types (say, tree ring density, varve thickness, etc) be harmonized...»

Tree ring density is basically a measure of how good the conditions are for growing trees.