US temperature data are not real but “adjusted”

It would now seem to be confirmed that US temperature data are being “adjusted” to meet the requirements of the adjusters.

This is more than confirmation bias. It is the fabrication of data. 

Real Science:

I have posted this graph dozens of times, and hopefully this time it will be clear to everyone. The graph shows the average final temperature for all USHCN stations minus the average raw temperature for all USHCN stations.  This is a very simple calculation which shows the average adjustment for all USHCN stations.

It shouldn’t be a surprise to NOAA or anybody else that an exponential increase in adjustments is occurring, as I have been showing the same graph (crying wolf) for many years.

USHCN adjustments - Real Science

USHCN adjustments – Real Science

While Real Science has been claiming this fabrication of data for some time it is only recently that it has started receiving serious attention. And it would seem that there are no real temperatures any more across the continental US. Where measuring stations no longer exist, temperatures are just  made up for the purpose of “continuity”.

Paul Homewood has been looking at these and he posted this about the temperature adjustments at Kansas stations

Following much recent discussion on USHCN temperature adjustments, I have had a chance to analyse what has been going across the state of Kansas.

Altogether there are 30 USHCN stations, currently listed as operational in Kansas, and I have compared the mean temperatures from the USHCN Final dataset for January 2013, with the actual station measurements as listed in the State Climatological Reports. (There is one station at Lawrence, which I have excluded as the file seems to be corrupted). …..

  • Nearly every station has had the actual temperatures adjusted upwards by about half a degree centigrade.
  • There are 8, out of the 29 stations, which have “Estimated” temperatures on USHCN. This is a ratio of 28%, which seems to tie in with Steve Goddard’s country-wide assessment.
  • Of these eight estimates, five are because of missing data, as listed at the bottom. Four of these are now shut.
  • There seems to be no obvious reason why the other three estimates have been made , at Ellsworth, Liberal and Ottawa. The adjustments at these though don’t appear to be significantly different to the non estimated ones.

 In addition to recent temperatures being adjusted upwards, we also find that historical ones have been adjusted down. So, for instance we find that the January 1934 mean temperature at Ashland has been adjusted from 3.78C to 3.10C, whilst at Columbus there is a reduction from 4.00C to 3.52C.

In total, therefore, there has been a warming trend of about 1C added since 1934. It has always been my understanding that the various adjustments made for TOBS, etc, have been made to the historic data, and that present temperatures were left unaltered. Certainly, the cooling adjustments of about half a degree in the 1930’s would seem to tally with what NOAA have been publishing.

But this leaves the question of just why there is a need to continually adjust current temperatures upwards.

WUWT is also on the case:

What is going on is that the USHCN code is that while the RAW data file has the actual measurements, for some reason the final data they publish doesn’t get the memo that good data is actually present for these stations, so it “infills” it with estimated data using data from surrounding stations. It’s a bug, a big one. And as Zeke did a cursory analysis Thursday night, he discovered it was systemic to the entire record, and up to 10% of stations have “estimated” data spanning over a century. ……… And here is the real kicker, “Zombie weather stations” exist in the USHCN final data set that are still generating data, even though they have been closed. ……

There are quite a few “zombie weather stations” in the USHCN final dataset, possibly up to 25% out of the 1218 that is the total number of stations. In my conversations with NCDC on Friday, I’m told these were kept in and “reporting” as a policy decision to provide a “continuity” of data for scientific purposes. While there “might” be some justification for that sort of thinking, few people know about it there’s no disclaimer or caveat in the USHCN FTP folder at NCDC or in the readme file that describes this, they “hint” at it saying:

“The composition of the network remains unchanged at 1218 stations”

But that really isn’t true, as some USHCN stations out of the 1218 have been closed and are no longer reporting real data, but instead are reporting estimated data.

This is the fabrication of data – institutionalised – to satisfy a pre-determined conclusion.


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