Ever wonder why NASA’s Jim Hansen (and many others) see red at high northern latitudes?

Above 2011 Temperature Anomaly. Source: NASA GISS interactive plotter

With all that red up north, you’d think Jimbo, Gore, and Trenberth would want to get a look at that firsthand, instead of making a fossil fueled boat trip to Antarctica during peak of the southern summer melt season so they could give us grand proclamations about the melting there.

All the “hot action” is up north according the the latitude plot that accompanies the GISS anomaly map:

Funny how in the anomaly map above, with the great Texas Heat Wave this year, Texas is not red. WUWT? (The way it was portrayed in media, you’d think it was a permanent condition).

It seems to be all in the adjustments. Cooling the past helps the slope of the trend:

How GISS Has Totally Corrupted Reykjavik’s Temperatures

Guest post By Paul Homewood

GISS Surface Temperature Analysis

Now that GHCN have created a false warming trend in Iceland and Greenland , and GISS have amended every single temperature record on their database for Reykjavik going back to 1901 (except for 2010 and 2011), we should have a look at the overall effect.

The red line reflects the actual temperature records provided by the Iceland Met Office and shows quite clearly a period around 1940, followed by another 20 years later, which were much warmer than the 1970’s. GISS, as the blue line shows, have magically made this warm period disappear, by reducing the real temperatures by up to nearly 2 degrees.

Meanwhile the Iceland Met Office say that “The GHCN “corrections” are grossly in error in the case of Reykjavik”.

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Just for completeness, here is the GISS trend map and latitude plot for the start of the GISS baseline (1951) to 2011.

UPDATE: 1/26/2012 10:30AM

I added (The way it was portrayed in media, you’d think it was a permanent condition) to the body of this post. since my intent with that statement about Texas wasn’t clear. I got distracted by phone calls and other business in the middle of writing this post and lost my train of thought (and I haven’t been following comments on it either). It is one of the pitfalls of trying to run a business and family while trying to keep up with the demands of this venue. Apologies to anyone who thought I was suggesting Texas summer temp data would show up in December data. Such transient events are just one more indication of the synoptic scale blocking high which caused that event, not any long term climate issue.

Paul Homewood sends his email correspondence and supporting data from the Icelandic Met Office. Here is a PDF file containing the data (referenced in the emails): Reykjavik-1871_Akureyri-1881_Stykkisholmur-1845

—– Forwarded Message —– From: Trausti Jónsson To: paul homewood Cc: Halldór Björnsson Sent: Monday, 23 January 2012, 17:40 Subject: Re: monthly temperatures

Hi Paul. We have sent a questions to the GHCN database regarding this and they will look into the problem. Regarding your questions: a) Were the Iceland Met Office aware that these adjustments are being made? No we were not aware of this. b) Has the Met Office been advised of the reasons for them? No, but we are asking for the reasons c) Does the Met Office accept that their own temperature data is in error, and that the corrections applied by GHCN are both valid and of the correct value? If so, why? The GHCN “corrections” are grossly in error in the case of Reykjavik but not quite as bad for the other stations. But we will have a better look. We do not accept these “corrections”. d) Does the Met Office intend to modify their own temperature records in line with GHCN? No. No changes have been made in the Stykkisholmur series since about 1970, the Reykjavík and Akureyri series that I sent you have been slightly adjusted for major relocations and changes in observing hours. Because of the observing hour changes, values that where published before 1924 in Reykjavík and before 1928 in Akureyri are not compatible with the later calculation practices. For other stations in Iceland values published before 1956 are incompatible with later values except at stations that observed 8 times per day (but the differences are usually small). The linked paper outlines these problems (in English): Click to access Climatological1960.pdf The monthly publication Vedrattan 1924 to 1997 (in Icelandic) is available at: http://timarit.is/view_page_init.jsp?pubId=278&lang=is&navsel=666 and earlier data (in Icelandic and Danish – with a summary in French) at: http://timarit.is/view_page_init.jsp?pubId=240&lang=is&navsel=666 http://timarit.is/view_page_init.jsp?pubId=241&lang=is&navsel=666 Monthly data from all stations from 1961 onwards : http://www.vedur.is/Medaltalstoflur-txt/Manadargildi.html Best wishes, Trausti J. Frá: “paul homewood” “paul homewood” Til: “Trausti Jónsson” Sent: Mánudagur, 23. Janúar, 2012 17:09:30 Efni: Re: monthly temperatures Many thanks for this. I have noticed that in the latest version of the GHCN database, NOAA have made certain adjustments to temperatures at several Icelandic stations, which have the effect of reducing temperatures from around 1940 to 1965, and increasing temperatures since. For instance in Reykjavik, there is something like an extra degree of warming added by these adjustments, as per the following link. Also affected are Stykkisholmur , Akureyri and Hofn. ftp://ftp.ncdc.noaa.gov/pub/data/ghcn/v3/products/stnplots/6/62004030000.gif Can I ask :- a) Were the Iceland Met Office aware that these adjustments are being made? b) Has the Met Office been advised of the reasons for them? c) Does the Met Office accept that their own temperature data is in error, and that the corrections applied by GHCN are both valid and of the correct value? If so, why? d) Does the Met Office intend to modify their own temperature records in line with GHCN? Many thanks Paul Homewood From: Trausti Jónsson To: phomewooduk Cc: Guðrún Þórunn Gísladóttir Sent: Tuesday, 17 January 2012, 11:19 Subject: monthly temperatures Dear Mr Homewood, I attach a table including the monthly temperature averages for Reykjavik (1871), Akureyri (1881) and Stykkisholmur (1845). Best wishes, Trausti J. Lýsing: Could you please send me, or let me know where I can access, annual mean temperatures for Reykjavik and Akureyri, back to 1900,(or when records are available from).. Many thanks Paul Homewood –

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