Monthly Archives: August 2006

Take a Ritalin, Dave

The Team have snarled back at Wegman here . They’ve posted up an August 16, 2006 letter from David Ritson to Waxman, accusing Wegman of not responding with a request for information that had been outstanding for almost 3 weeks (?!?) . Yes, you read it right. Jeez, I’ve been waiting almost three years for […]

Data "Snooping"

Add this phrase from economics to your vocabularies to describe the "other" studies where proxies with known HS shapes like bristlecones and Yamal are used time after time. Here’s a website with some links. They cite Sullivan, Timmermann and White (1999) and White (2000) for the following definition: "Data-snooping occurs when a given set of […]

Wahl and Ammann Again #2

Here’s a pretty little graph that I think that you’re going to see more of. One is using the Wahl-Ammann variation of MBH methodology applied to MBH data; the others are from low-order red noise. Pink – no PC reconstruction from WA without strip-bark and Gaspé; black – from low-order red noise. I worked this […]

Francois and Dano on Agricultural Yields

Here are posts from Francois and Dano on Tilman et al.

Wahl and Ammann Again #1

I asked KNMI what were the studies that had "refuted" our work. It seems to be Wahl and Ammann. I’ve never understood the traction of Wahl and Ammann with climate scientists. I doubt that any of them have worked through the details, but Wahl and Ammann issued a press release that all our claims were […]

Holland and Sweden

I will be travelling to Europe in the week of Sept 9-15 to give presentations in Holland and Sweden. Two presentations in Holland on Sept 14 – a private presentation in the morning at KNMI and a public presentation at 7.30 in the evening at the Free University in Amsterdam presented by Natuurwetenschap & Techniek […]

Willis E on Hansen and Model Reliability

Another interesting post from Willis: James Hansen of NASA has a strong defense of model reliability here In this paper, he argues that the model predictions which have been made were in fact skillful (although he doesn’t use that word.) In support of this, he shows the following figure: (Original caption)Fig. 1: Climate model calculations […]

CMIP Control Runs

Willis Eschenbach sent in the following information about the Coupled Model Intercomparison Project (CMIP) project. I’ve not checked the analysis myself, but it is an interesting topic and well worth a separate thread. There are some other pretty good posts like this. If people want to suggest some back posts for individual threads, it just […]

Tephras in Ecuador

Donald T. Rodbell et al 2002 (with overlaps to Mark et al and Abbott et al) , entitled " A Late Glacial–Holocene Tephrochronology for Glacial Lakes in Southern Ecuador" , here correlates glacial lakes in southern Ecuador according to widespread tephra (volcanic deposits). A couple of interesting points – some BIG differences between radiocarbon dates […]

Glacier Bay, Alaska

George posted up the following link as supposedly supporting Lonnie Thompson’s views on Quelccaya: Early results on Reid Inlet, where Reid Glacier has now backed up out of the ocean, show that the glacier had retreated beyond where it is now more than 10,000 years ago, advanced to the sea by 8,000 years ago, again […]