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Greenland Temperature Trends

August 30, 2015
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By Paul Homewood  

 

I showed some graphs last month, giving summer temperature trends in Greenland.  

 

For completeness, I am doing the same with annual temperatures.

 

The only two long running stations currently operational are Godthab and Angmagssalik. As before, I am using the unadjusted data from GISS:

 

 

 

 

 

image

image

http://data.giss.nasa.gov/gistemp/station_data_v2/

http://data.giss.nasa.gov/gistemp/station_data/

 

As with the summer ones, we see that temperatures in the last decade or so are very little different from the 1930’s and 40’s. The only year which stands out was 2010.

 

Both stations are in the southern part of the country, and it is sometimes claimed that temperatures are rising faster at higher latitudes. We can get a clue that this is not true at Upernavik, which lies about 1000km further north than Nuuk.

Although there is no recent data, we can still see the unmistakeable pattern of the warm 1930’s and 40’s, which we see across a wide swathe of the Arctic, through Iceland, Norway and into Siberia, known as “The Warming in the North”.

 

 

station

http://data.giss.nasa.gov/cgi-bin/gistemp/show_station.cgi?id=431042100000&dt=1&ds=1

 

 

This warm interlude is extremely well known and researched, yet climate scientists nowadays seem to want to ignore it, and pretend instead that Arctic warming in the last decade is caused by CO2.

 

The truth is much more prosaic – the Atlantic Multidecadal Oscillation:

 

tsgcos.corr.81.146.41.42.241.13.26.26

http://www.esrl.noaa.gov/psd/cgi-bin/gcos_wgsp/tsanalysis.pl?tstype1=91&tstype2=0&year1=1895&year2=&itypea=0&axistype=0&anom=0&plotstyle=0&climo1=&climo2=&y1=&y2=&y21=&y22=&length=&lag=&iall=0&iseas=1&mon1=0&mon2=11&Submit=Calculate+Results

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6 Comments
  1. manicbeancounter permalink
    August 30, 2015 11:00 pm

    Berkeley Earth have data for Upernavik up to 2013, although after 1999 it is clearly erroneous. Up until that date the raw and the adjusted anomalies both conform to the GHCN/GISS data. That is in the 1930s average temperatures were about two degrees warmer than in more recent years.
    Source is http://berkeleyearth.lbl.gov/stations/175522
    I have done five year centered moving averages which show the this pattern. Given that Berkeley Earth adjust to the “regional expectation”, the lack of major adjustments confirms that the pattern covers quite an area.

  2. manicbeancounter permalink
    August 30, 2015 11:10 pm

    Berkeley Earth also has more data, which may help corroborate this post. Try for instance
    http://berkeleyearth.lbl.gov/station-list/?latitude=72.8&longitude=-56.2

  3. ColA permalink
    August 31, 2015 4:59 am

    But, THIS IS UNACCEPTABLE, to show temperature data that has not been adjusted for station movements, polar bear droppings, urban heat salad effect and then these numbers must be haemorrhaged to agree with the other nearest stations = Houston (we have lift off!) Rutherglen (good one, already over-haemorrhaged) and of course Berlin and Hong Kong to ensure the numbers have a global consensus, This sounds like a job for the mighty Aussie BoM – up, up and away ( or is that down, down and underlpay? bugger I always get them confused!)

  4. A C Osborn permalink
    August 31, 2015 11:06 am

    Paul, have all the Greenland weather stations stopped supplying data or has GISS just stopped recording/using them?

  5. September 8, 2015 1:50 pm

    Reblogged this on Climate Collections and commented:
    Greenland temperature records clearly demonstrate cyclical trends.

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