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Another NCDC Cock Up!

July 3, 2014
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By Paul Homewood

 

 

Readers may recall that NCDC have a useful little tool, which shows the effect on temperature trends of their recent switch to a new dataset, the “nClimDiv.”

 

I showed an example of this back in March in my post here.

 

25_nebraska00_precipitation_thumb

https://notalotofpeopleknowthat.wordpress.com/2014/03/27/ncdc-introduce-more-temperature-adjustmentsand-guess-which-way-they-go/

 

The graph shows that that temperatures up to around 1980 have been reduced, and recent ones slightly increased, under the new system.

 

So I thought I would check out the latest version, to see if anything had changed. Well it has, just slightly!

 

(01)_Alabama[00]_Temperature

http://www.ncdc.noaa.gov/temp-and-precip/divisional-comparison/

 

It seems to be telling us that the new system has reduced Alabama’ temperatures by more than 50F! It will soon be as cold as Pluto at this rate.

 

This is another in a catalogue of errors from NCDC, following their “adding of monthly temperatures instead of averaging”, and Roy Spencer’s discover of more bugs on their graphs.

 

Meanwhile, NCDC assure us all is well!

4 Comments
  1. Green Sand permalink
    July 3, 2014 3:38 pm

    Paul, I wonder if you will be an agenda item?

    ” Next week (8 to 16 July) around 40 climate scientists (including three from the Met Office) and statisticians from around the world are getting together at the US National Center for Atmospheric Research (Boulder, Colorado) to work on the new ISTI databank records. These are experts in the field of homogenisation and interpolation – two fundamental processes in the creation of climate quality data-products. The aim is that this new databank, and this opportunity to collaborate, will significantly enhance our ability to quantify changes in our climate, regionally and throughout the world.”

    http://www.metoffice.gov.uk/research/news/2014/isti-databank-release

    There was a time when healthy combative competition existed between the different data set compilers, not any more, it is now starting to look like an incestuous affair.

  2. Herve permalink
    July 3, 2014 4:42 pm

    I dont think alarmists know what is Pluto and even less its temperature ! Why? Because it is Reality….

  3. July 4, 2014 3:07 am

    Yeah, I got the same graph for Wyoming. With the exception that the upper portion resolves out around the 40 degree line.

    As for the bottom …No wonder my feet are cold.

  4. Brian H permalink
    July 13, 2014 6:24 am

    discover of more bugs

    —– discovery

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