Here are 6 graphics showing contours plots of USHCN A) 1900-2006 trends for 1) raw 2) tobs 3) adjusted; followed by the same plots for B) 1948-2006 (same start as Parker) 1, 2 , 3 as before. The top 20 are shown for each case here. (Case A2 is missing because I forgot to save […]
Fresno Airport is one of the sites in the Parker 2006 network that is used to argue that there is a negligible UHI component in temperature increases in the major indexes. Here is a picture of this rustic location (which is still on the surfacestations.org to do list): Parker has a figure showing results for […]
Did Jones et al 1990 “fabricate” its quality control claims? This hard-hitting question is asked by Doug Keenan here. He cites the following claims from Jones et al 1990 and Wang et al: The stations were selected on the basis of station history: we chose those with few, if any, changes in instrumentation, location or […]
Today I want to talk about a terrific 1985 article Godowitch et al,, 1985. Evolution of the Nocturnal Inversion Layer at an urban and nonurban location, J Clim Appl Met 791 ff available online here, which helps put some of the UHI discussions in a more complete perspective. Instead of just considering UHI from a […]
Anthony Watts writes: The picture above comes to me courtesy of Gary Kobes, of the US Coast Guard. It is the temperature sensor at the climate station of record in Aberdeen, WA It is located at the sewage treatment plant. Note the sign on the support post. Note also the temperature shelter plates are clogged […]
If you are not a climate scientist (or a realclimate reader), you would almost certainly believe, from your own experience, that cities are warmer than the surrounding countryside – the “urban heat island”. From that, it’s easy to conclude that as cities become bigger and as towns become cities and villages become towns, that there […]
Anthony Watts reports on whitewash versus latex.
I pointed out the hot spot in northern Minnesota in the contoured USHCN trends. There was a really interesting discussion of Minnesota sites by their state climatologist, JAmes Zandlo, in 2000, a couple of years ahead of Roger Pielke Sr’s investigations in Colorado. He showed the following contour for Minnesota (which prompted me to do […]
Russell S. Vose, David R. Easterling, Thomas R. Karl, and Michael Helfert, Comments on “Microclimate Exposures of Surface-Based Weather Stations”, BAMS, 2005 stated: “Cooperative Station Reports (i.e., B-44 forms) are available online from the National Climatic Data Center.” I spent quite a bit of time searching for B-rr forms. I tried Dale Kaiser of CDIAC, […]
I did plots for both GISS station data and GISS gridcell data on the same basis as USHCN.
Climate Audit 