With the North Atlantic hurricane season officially starting in a couple weeks (June 1), but possibly getting a head start with a developing low-pressure system in the Bahamas, considerable attention will be paid by the media to each and every storm that gets a name. In the North Atlantic, a name is granted to a […]
Rather than spending time archiving information from his various publications, Santer has placed his scientific priorities on introducing a remarkable cartoon (Youtube here), which ends (see 7 minutes on) with a ditty urging its audience to “do something about the power of poop”. The video ends with a close-up of a large odiferous dropping, with […]
As noted in an earlier post, I’ve now managed to synchronize 48 of 49 Santer tropo series with KNMI surface temperature series and have looked at versions of some key figures in CCSP 1-1 and previously inaccessible figures in Santer. First here is an important figure from CCP 1-1 showing a histogram of relative trends […]
Have any of you seen any articles discussing which model runs are archived? It doesn’t appear to me that all model runs are archived. So what criteria are used to decide which model runs are archived by the modelers at PCMDI? (This is a different question than IPCC selections from the PCMDI population.) We’re all […]
Lucia did a recent post on the construction of IPCC Figure 9.5, which I’d also been looking at in light of the Santer model information but I had different issues in mind. IPCC Figure 9.5 says that they extended selected 20th century runs (the “20CEN” models) with A1B models in order to produce the graph […]
The new USHCN was scheduled to come out a couple of years ago. A paper describing it has finally appeared, discussed by Pielke Sr here. I haven’t reviewed the new paper – something that I’ll be looking for is whether they rely on “homemade” changepoint methods to supposedly achieve homogeneity – “homemade” in the sense […]
CA readers are well aware that Phil Jones of CRU has jealously refused to provide the surface temperature data set used in the prominent HadCRU temperature index, going so far as to repudiate Freedom of Information requests. Efforts to obtain this data have been chronicled here from time to time. As a result of the […]
I reported a while ago on Santer’s refusal to provide the T2 and T2LT data as collated. Despite Santer’s rude refusal, PCMDI placed the data online anyway, notifying me that this had been their plan along. I reported on this at the time, but so far haven’t reported on the collated data. The T2 and […]
For a seemingly simple topic, the calculation of trends and their confidence intervals has provoked a lot of commentary (see any number of threads at Lucia’s). Today, I’m presenting what I think is an interesting approach to the problem using maximum likelihood. In a way, the approach builds on work that I did last year […]
Climate Audit 