Sentences with phrase «ring data»

He and his colleagues examined tree ring data from more than 1,300 sites around the world.

Do you agree, or not, that there are serious concerns about the use of tree ring data as temperature proxies?

At least the fourth IPCC report, published in 2007, discusses the problems with the tree - ring data at length.

Some tree ring data seems to show that it's warmer now — in a few particular locations.

Up until then the instrumental record and tree ring data agreed nicely.

The problem is that some sets of tree - ring data suggest temperatures start falling towards the end of the 20th century, which direct temperature measurements show was not the case.

They used two separate tree ring data sets that had been previously published, one that indicated changes in precipitation over time, and the other temperature.

If you read the various studies cited within that section, you'll find lengthy discussions of these and many other issues related to the use of tree - ring data in climate reconstruction.

This article is about tree ring data as temperature proxies and whether or not those on either or both sides cherry picked data to support a particular position.

You acknowledge that the tree ring data doesn't agree with the instrument data in the period post 1960.

There has been much discussion as to why tree ring data stopped being a useful measure of temperature in the 60's and 70's.

Do the tree ring data sets begin to be correlated with other data sets?

One of the curves was based on tree ring data which showed a very good relationship between the tree rings and the temperature from the latter part of the nineteenth century through to 1960, and after that there was a divergence where the trees did not go up as much as the real temperatures had.

Again that's why tree ring data diverges from instrumental during the baby boom era.

The first can be done fairly easily — as Jim suggests, we can look at coherence between tree - ring data over time.

Tree ring data support the model's conclusion, showing that in some areas, the summer of 1783 was the coldest in more than 500 years.

The tree ring data included tree core samples collected in three different years between 2001 and 2012 in a region called the Northern Old Black Spruce site.

The tree - ring data match other information about long - term climate change, like the data from ice cores drilled out of ancient glaciers.

Maybe this is why Briffa had to truncate uncooperative tree ring data post 1960 and Mike's Nature trick was used to «hide the -LSB-...]

Steve McIntyre has once again stirred the hornet's nest of online climate change denial with a hasty modification of the Yamal tree ring data published by Keith Briffa and colleagues in 2008 as part of a paper in Philosphical Transactions of the Royal Society (Phil.