In my discussion of Peruvian stations, I noted several examples of negative urban adjustments. A couple of readers inquired as to whether there were any examples of the opposite effect. In fact, Hansen et al 1999, the primary reference for the present-day GISS adjustment methodology provides using two such examples (the only ones discussed): Phoenix […]
There’s no post-1988 data for Cobija or Rurrenabaque. Thus spaketh Tamino, a pseudonymous climate blogger who occasionally takes the time to hurl invective at Climate Audit. As so often in matters climate, I casually wondered how Tamino knew this. My puzzlement grew by merely googling “cobija weather”. To my enormous surprise, there were a number […]
Hansen’s downward adjustments of Peruvian temperature records by as much as 3 deg C is based on the presumptive quality of Peruvian “rural” sites. If one even spends 40 minutes examining the locations of these sites, any resemblance to rural USHCN sites disappears. In addition, the failure of NOAA and NASA to update their records […]
We have talked about finding Waldo for a while. Here are a few interesting graphics showing the Adjusters in Peru. Here are 4 stations where temperatures in the mid-20th century have been lowered by around 3 deg C. These are all reverse UHI effects. For all of the above graphics, I’ve plotted original monthly data […]
As an exercise, I’ve plotted the locations of the GISS Code 1 stations in the US, color coded them to show the ones that end early and then examined the Code 1 stations in California where there is a combination of both a strong GISS trend anomaly and station survey completion.
In May 2007, we took a look at station data for Dawson, Canada, data that is important to dendros because it goes back to the gold rush days of the late 1890s and because there are important tree ring chronologies in the area. In this case, the dendros decided that the GHCN adjusted data was […]
UPDATE – GISS LOCATIONS AND GLOBAL NIGHTLIGHTS KML DATABASE FOR GOOGLE EARTH NOW ONLINE! Thanks to data provided by Steve McIntyre and conversion skills provided by Barry Wise, we now have the first ever interactive global mapping tool for nightlight ratings and GISS stations worldwide that encompass USHCN and GHCN station locations. Download it from the surfacestations website here […]
Several recent posts and hundreds of associated comments have focused on the subject of temperature adjustments. TOBS, homogeneity, scribal records, rural versus urban … it is enough to make one’s head spin. I understand the desire to adjust data, but I often wonder if the problem is simply intractable and the adjustments we do have […]
Recently Anthony Watts noted that the Lampasas TX station was relocated in 2000 to an extremely poor location and attributed a hockey-sticking of the Lampasas series to this re-location. In a comparison that I made with nearby Blanco TX (which is the sort of comparison that USHCN says that they do), it seemed plausible that […]
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