John V has posted some graphics recently arguing that CRN1-2 yielded pretty much the same results as major temperature indices and, in some sense, vindicated these results. As Gavin Schmidt has pointed out, the U.S. is only 2% of the world’s surface; and as I’ve observed on many occasions, the statistical methodologies and data quality […]
On Sept 28, 2006, Willis Eschenbach sent an FOI for CRU station data. A year later, after many letters, we still do not have the CRU data as used, but do have a list of stations used, a list which is slightly shorter (4138) than the 4349 stations said to have been used in Brohan […]
Willis Eschenbach received a message today that the CRU list of stations used is online at http://www.cru.uea.ac.uk/cru/data/landstations/ . The webpage says: The file gives the locations and names of the 4138 stations used at some time (i.e. in the gridding that is used to produce CRUTEM3) during the period from 1851 to 2006. All these […]
As noted before, climateaudit readers have helped UCAR find the lost civilization of Chile and today, we are happy to report that we have helped NASA find the lost city of Wellington NZ. NASA’s records for Wellington NZ were mysteriously interrupted in 1988 – an interruption so severe that we assumed that Wellington NZ must […]
The source code for Hansen’s Step 2- the “urban adjustment” step is online. If anyone’s been able to operate the program through to Step 2, I’d be interested in some stage results for the stations discussed here. The verbal description is not clear and the code is a blizzard of old-fashioned Fortran subscripts, so it […]
Last spring, we offered to help UCAR locate the mysterious lost civilization of Chile. I reported: If one goes to the ds570.0 location, http://dss.ucar.edu/datasets/ds570.0/data/ (you may have to register), there is a map of the world which appears to be comprehensive (i.e. all known oceans and continents are displayed.) Above the map is the following […]
Hansen “Step 1” which was the source of the August crossword puzzles does not occur in a crossword puzzle form in the USHCN stations that we’ve been discussing this week. The “Hansen bias” in combining scribal versions, noticed by John Goetz, does not occur in USHCN stations for two separate reasons: (1) in the USHCN […]
Shortly after, NASA published their source code on Sept 7, we started noticing puzzling discrepancies in the new data set. On Sep 12, 2007, I inquired about the changes to Hansen and Ruedy, observing that there was no notice of the apparent changes at their website: Dear Sirs, I notice that you’ve changed the historical […]
Yesterday, I posted up a first look at differences between station histories classified as CRN=1 (good) versus CRN=5 (bad) – a simple comparison of averages, noting that other factors may well enter into the comparison. A couple of other points that I’ve made consistently as we look at these results which I’d like people to […]
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