I spent quite a bit of time today ploughing through USHCN station data, doing a lot of grunt work. For example, I spent time aking a concordance of 1221 USHCN identification numbers with GHCN id numbers (they aren’t the same) and I haven’t seen a concordance anywhere. Most of it could be done through matching […]
Anthony Watts writes: I decided I’d drop some more fun with entropy your way. Here is the USHCN station in Redding, CA # 425725920010 now operated by the US Forest Service at their HQ located at the Redding Airport it used to be operated by the NWS, but that WSFO closed in the mid 90’s. […]
Anthony Watts has an excellent post showing the calibre of the quality control carried out by Phil Jones and Jim Hansen and the quality of Phil Jones’ “proof” that the “overall urban bias …is greater than 0.05 deg in the 20th century”. Marysville CA (425745000030), GISS population 12,000, is in the USHCN network and is […]
There’s something romantic about lost civilizations. Archaeologists have ventured all over the world looking for lost civilizations. Little did they know that some lost civilizations report their weather to UCAR, including the mysterious country of Chile whose existence has long been suspected. Here at last is conclusive evidence that the lost country of Chile exists, […]
GISS does not provide a coherent archive of station data (such as is available at GHCN.) As reported before, Nicholas developed a technique for downloading station data within R. Downloading the entire data set (which takes a minute or so from GHCN on a highspeed network) is laborious but automatic. I did this in the […]
If you want one more inhomogeneity in station records, it seems that temperature measurements have been whitewashed – literally. The Stevenson screens used to be painted with whitewash which is a calcium carbonate with very specific infrared absorption properties. I gather that whitewash isn’t used much any more and so screens are routinely painted with […]
CA reader Geoff Sherrington, an Australian scientist, sends the following email exchange with Phil Jones in early 2006 (original post here). Geoff observes: there is a reluctance to answer direct questions with direct answers and a lot of red herrings thrown in. Readers can deduce what they like from the exchange, where Phil says he […]
D’Arrigo, Wilson et al 2007 is an interesting article on the Divergence Problem, about which I plan to post from time to time. Since we’ve been discussing temperature data recently – with special discussions of GHCN data problems in Russia, China and Australia, I thought that it would be interesting to draw attention to an […]
A couple of interesting references and comments on the Cardwell site were sine int. Let’s focus on Cardwell and its neighbours a little.
Yesterday, in a spot check, we observed that Torok and Nicholls had acknowledged a substantial inhomogeneity in the Low Head lighthouse series, used in Jones et al 1990. Given this problem in one of the 49 series, this begs the question of what the other 48 series look like. Here are quite a few plots […]
Climate Audit 