Category Archives: General

GISS Estimation Case Study

In my post The Accidental Tourist I discussed the relationship between the Russian Meteo daily temperature record for Kurgan and two of the GHCN records for that same weather station. One surprise I learned was that GHCN discarded an entire month’s worth of data when a single data point was suspect. Doing so left GISS […]

Ohio State Presentation

I’ve posted my Ohio State presentation online – 11 MB. I’ve done a little extra work and integrated the PPT pictures with the script and provided most of the references in a bibliography. There’s quite a lot of material, but I hit my time point (an hour) quite accurately. (A reader compressed this to 1 […]

Adjustments in the News

We discuss adjustments a lot on this blog. Today there’s a remarkable example and brewing scandal involving first a computer error in which Moody’s incorrectly graded certain debt obligations. The real story comes after the problem was identified – as it is alleged that Moody’s altered its models to avoid having to fully undress its […]

The Accidental Tourist

Occasionally I will take a trip after much careful planning and preparation, only to find myself going off into uncharted territory soon after embarking on my adventure. That is what happened to me recently when I started to take a fresh look at worldwide station coverage. Where I ended up and what I found when […]

Gistemp Compilation

At Steve Mosher’s request, a thread for the revived effort to compile Gistemp.

Ohio State

As Hu McCulloch mentioned, I am speaking tomorrow, Friday May 16, at OSU on “Was 1998 the Warmest Year of the Millennium: What do We Really Know?” The talk will be 2:30-3:48 in Scott Lab 001 (a big lecture hall in the basement of the south end of the east wing). A reception will follow. […]

Southern Hemisphere Sea Ice Reaches "Unprecedented" Levels

Four of the past 5 months are “all-time” records for Southern Hemisphere sea ice anomalies, “unprecedented” since the data set began in 1979 as shown below: On a global basis, world sea ice in April 2008 reached levels that were “unprecedented” for the month of April in over 25 years. Levels are the third highest […]

Raobcore Adjustments

One of the issues in play in criticisms of Douglass et al 2007 pertained to their use of RAOBCORE 1.2 rather than RAOBCORE 1.4. As an editorial comment, since some critics of Climate Audit seem to feel that I bear some personal responsibility for defending this paper, I was not a co-author of Douglass et […]

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Ice Ages #2