The Sheep Mountain CA bristlecone site is the most important proxy in MBH and the MBH98 reconstruction actually doesn’t differ very much from the Sheep Mountain tree ring chronology (other than it ends in 1980 at pretty much the peak of the Sheep Mt chronology and doesn’t include the downtick in the 1980s.) Various efforts […]
continued from Svalgaard #1 here. . Continued at Svalggard #3.
We’ve heard a lot recently from RC about whether solar can account for temperature variations in the 20th century. While my primary interest in these ruminations is the possibility of pinning down a set of standards by which they agree that a study is “bad” – since it’s hard for me to determine any sins […]
A reader has drawn to my attention that chapter 3 of the Ababneh Thesis, disussed previously at CA here here and here was published in Quaternary International (in Sept 2007 just prior to my initial post.) Since I did not refer to this peer reviewed publication in my earlier review, I wish to update these […]
I’ll try to do reports on various interesting aspects of the AGU conference over the next few weeks. Today I’m going to post on the session on the Divergence Problem, initiated and chaired by Rob Wilson, and which, for the most part, consisted of young dendros probing critically at the issue of the failure of […]
Malcolm Hughes coauthor Matthew Salzer) made a presentation entitled “Twentieth Century Bristlecone Pine Tree Rings near Upper Tree Limit Wider than in Recent Millennia”. This included a report on Sheep Mountain. He showed a picture of Matthew Salzer on Sheep Mountain and praised his work. He said that there was no difference between strip bark […]
RealClimate has a good discussion of problems with Loehle 2007: link, linking to JEG’s discussion but not to discussion here. Update: Lubo has a discussion here. In some cases, RC non-linking to climateaudit is mere pettiness, but, in this particular case, they cite information on Loehle that was initially made available at climateaudit. In this […]
Crowley and Lowery (2000) still cited quite often purported to show that the MWP was a dog’s breakfast of odds and ends – very different from the Modern Warm Period. The “proof” was the presentation of a hodge podge of proxies, which supposedly did not show a MWP, but did show a Modern Warm Period. […]
On an earlier occasion, I posted up our updated measurement data from Almagre. I’ve been working on this material in preparation for AGU (Dec 14). Today I’m going to show some initial chronology calculations.
Lif Svalgaard writes (moved from another thread for convenience”) Line 1: The Total solar Irradiance (TSI) has several sources. The first and most important is simply the temperature in the photosphere. The hotter the sun, the higher the TSI. Some spectral lines are VERY sensitive to even minute changes in temperature. Livingston et al. has […]
Climate Audit 