Yearly Archives: 2008

October 2008 – NOAA vs MSU

Today, I’m posting up plots comparing the MSU gridded data and the NOAA land-sea gridded data. On an overall basis, MSU (GLB) is running about 0.2 deg C cooler than NOAA land-sea gridded in October 2008. These differences are quite volatile and this discrepancy is not unusual. First here is October MSU (centered on 1980-2000) […]

Can’t See the Signal For the Trees

ABSTRACT: A new method is proposed for determining if a group of datasets contain a signal in common. The method, which I call Correlation Distribution Analysis (CDA), is shown to be able to detect common signals down to a signal:noise ratio of 1:10. In addition, the method reveals how much of the common signal is […]

Hello, Viet Nam!

Hey, NOAA, if you’re not too busy deleting data, you can drop in and say hello.

Emulating CRUTem Graphics

Because of the puzzles in trying to replicate the NOAA graphic from archived data, I’ve also tried to replicate the HadCRU plots from archived data. Hu McCulloch has criticized the highly inappropriate use of Mercator projections by climate scientists and, as an exercise, I figured out a fairly simple method of plotting these results in […]

"Anomalous" in Finland

Occasionally, I’ve been criticized for spending too much time on NASA GISS. Since we aim to please even our severest critics, let’s spend a little time today on NOAA, which has just reported the second warmest October of all time. I downloaded the NOAA gridded data (who mercifully, in this case, at least use .gz […]

A Collation Utility for GISS dset1 and dset2

GISS has been providing a considerable amount of intermediate information on their results. Unfortunately, it’s been provided in binary format that is presumably suited for people who speak Fortran with a Unix accent. I presume that such people converse with one another in medieval Latin. It’s not very handy for people who use modern languages. […]

OK, What Caused the Problem?

Are you like me and a little puzzled as to exactly how the GHCN-GISS problem happened? GISS blamed their supplier (NOAA GHCN). Unfortunately NOAA’s been stone silent on the matter. I checked the Russian data at meteo.ru and there was nothing wrong with it. Nor is there anything wrong at GHCN-Daily for stations reporting there. […]

CRUTEM and HadCRU October 2008

Released today on the promised schedule are CRUTEM3 and HadCRUT3 for October 2008. October 2008 was in the top 8 crutem3 (0.517 deg C)and in the top 6 hadcru3 (0.440 deg C) Octobers. Because our collective eyes right now are fairly attuned to the colors of these grids and how changes in individual stations affect […]

Should the Credibility Crunch Move to NOAA?

Some RC commenters are bemoaning the criticism that GISS is currently weathering. For example, Tamino: Although the error originated NOT with GISS but before numbers even got through their door, I’ve heard no cries for heads to roll at NOAA or NWS — just vicious attacks on GISS. As so often, Tamino simply makes stories […]

Memo to Gavin Schmidt

From: He Whose Name You are Not Allowed to Utter Gavin, you said: [Response: There are still (at least) four stations that have Oct data in place of september data but that didn’t report september data (Kirensk, Irkutsk, Bratsk, Erbogacen). I expect that the SEP=OCT check that NOAA did, just didn’t catch these. Still, this […]