Antarctica sea ice & latest global temperatures

Monday 12 November 2012, 16:05

Paul Hudson Paul Hudson

ANTARCTICA

The record breaking Arctic sea ice minimum recorded this summer (based on satellite data) was well documented in the media and on this blog.

Conversely, at the other end of the world, little mention was made of the Antarctica ice extent which approached a record high in September, according to the US National Snow and Ice Data Centre (NSIDC).

According to new research conducted by the British Antarctic Survey, published in Nature Geoscience, changing wind patterns around Antarctica are thought to have caused the increase in ice, with wind flows pushing sea ice outwards helping to increase its extent.

Climate models have failed to reproduce this overall increase in sea ice.

The new research says that sea ice is not able to expand by the same mechanism in the Arctic because if winds push the ice away from the pole it quickly hits land, as the Arctic is an ocean surrounded by a continent - whereas because Antarctica is a continent surrounded by water, ice can expand.

But according to the British Antarctic survey, the Arctic is losing sea ice five times faster than the Antarctic is gaining it.


Latest Global temperatures

Global temperatures in October remained at elevated levels.

According to the UAH satellite measure the global temperature was 0.331C above the 30 year running average in October.

Adjusted to the standard 1961-1990 measure, global temperatures were 0.584C above average, making it the 2nd warmest October globally since the start of satellite data in 1979.

These warm global conditions are despite temperatures in equatorial Pacific areas remaining neutral.

In fact, a continuation of neutral temperature conditions (neither colder La Nina nor warmer El Nino) are now favoured during the Northern Hemisphere winter, and the El Nino watch has been cancelled.

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Comments

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  • rate this
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    Comment number 1.

    Your off message paul, always expect the AGE inquisition.

  • rate this
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    Comment number 2.

    1. cmdocker:

    I don't know what the "message" is supposed to be, but the above post simply states that the relatively slight expansion in Antarctic winter sea ice extent is caused mostly by changes in wind patterns, and that October 2012 was the second warmest in the UAH record (it's also the second warmest in the NASA record, which goes back to 1880).

    So what's the message, and how is Paul "off" it?

  • rate this
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    Comment number 3.

    perhaps cmdocker considers PH a coolist?

  • rate this
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    Comment number 4.

    It's hardly global warming is it? It's looking more and more like urban warming with a bit of cyclicity in Arctic sea ice (countered by Antarctic sea ice). It doesn't even need explaining. Rural stations have barely warmed at all.

  • rate this
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    Comment number 5.

  • rate this
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    Comment number 6.

    Rural stations have warmed as fast, if not faster, than urban stations. The fastest warming parts of the world, such as the antarctic peninsula and the arctic are more rural areas.

  • rate this
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    Comment number 7.

    Also of course the oceans, surface and atmosphere show warming so the cause cannot be urbanization.

  • rate this
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    Comment number 8.

    """ ukpahonta wrote:
    A bit of breaking controversy for Auntie:
    http://www.bishop-hill.net/blog/2012/11/12/bbc-climate-28-revealed.html"""


    The BBC really are lurching from crisis to crisis arnt they - these so called 'experts' that shaped BBC policy look very much like activists to me

  • rate this
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    Comment number 9.

    #6. - quake wrote:
    "Rural stations have warmed as fast, if not faster, than urban stations. The fastest warming parts of the world, such as the antarctic peninsula and the arctic are more rural areas."

    If that is true, it could be due to the fact that the warming in urban areas has reached a saturation point and that rural areas are starting to receive heat input from the urban areas, i.e. the urban areas are acting like radiators of heat.
    Of course that might not apply directly to polar regions, but some of those temperatures are in any case estimated.

  • rate this
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    Comment number 10.

    So let me get this straight:

    Arctic ice is decreasing because of global warming and is disastrous

    Antarctica ice is increasing despite global warming and must be ignored?

  • rate this
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    Comment number 11.

    As a result of my specific request, the global monthly and annual time series for HadSST3 have now been added to the MO website.

    The figures for HadSST3 are as follows:

    Global = 0.432c, compared with 0.429c for September.

    This compares with a figure of 0.428c, versus 0.449c for September in the case of HadSST2, i.e. HadSST3 has gone up slightly, whereas HadSST2 went down.

    For some reason they haven't yet put up a link to the HadSST3 hemispheric data files yet but I have put in another request.

  • rate this
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    Comment number 12.

    #8 openside50

    'The BBC really are lurching from crisis to crisis aren't they'

    It seems that the list of people involved in the current bout of crisis were attendee's at the meeting in 2006.
    Not that there could be any link between setting the direction that the BBC takes at the CMEP seminars and current affairs broadcasting as the BBC charter expressly states the impartiality of the service!

  • rate this
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    Comment number 13.

    openside50 wrote:

    "So let me get this straight:"

    Not even close. Arctic ice is being lost at "five times faster than the Antarctic is gaining it". That is by using every credible measure; extent and volume This may be having serious impact on the weather;
    http://climatecrocks.com/2012/11/08/dr-jeff-masters-why-did-sandy-take-such-an-unusual-track/

    Antarctica has increased sea ice extent but this no where near balances the Ice loss globally;
    http://climatecrocks.com/2012/11/08/new-video-antarctic-versus-arctic-ice-apples-and-oranges/

  • rate this
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    Comment number 14.

    ukpahonta wrote:

    "A bit of breaking controversy for Auntie:
    http://www.bishop-hill.net/blog/2012/11/12/bbc-climate-28-revealed.html"

    I don't understand. What is the controversy here. Is it just that you don't like who the BBC gets opinions from?

  • rate this
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    Comment number 15.

    7. quake wrote:
    “Also of course the oceans, surface and atmosphere show warming so the cause cannot be urbanization.”

    Still do not have my laptop and data back so will have to rely on WfT.

    HadCRUT3 the latest 30 year trend (360 months) is 0.0151/C per year.

    HadCRUT3 consists of :-

    Land – CRUTEM3
    Latest 30 year trend CRUTEM3 = 0.0212 per year

    Ocean – HadSST2
    Latest 30 year trend HadSST2 = 0.0131 per year

    So for this particular dataset there is a significant difference in the warming trends.

    Can’t do HadCRUT4 yet but looking at the numbers QV has been posting I would not expect any significant difference.

    Don't like quoting numbers without having the ability to check, but I have no doubt somebody will.

  • rate this
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    Comment number 16.

    #14. - Lazarus wrote:
    "I don't understand. "
    Somehow, that doesn't surprise me!

  • rate this
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    Comment number 17.

    #2 newdwr54. I do not think that the Antarctic sea ice increase was slight it was a record for the 30 years worth of satellite data. There is a 60 odd year cycle of ice at both poles and as one increases the other reduces. It is striking how much sea ice is north of the Antarctic circle this winter (SH) which will have been in sunlight.
    Those working at BAS seem to panic over the smallest thing.

  • rate this
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    Comment number 18.

    #14 Lazarus

    'I don't understand. What is the controversy here. Is it just that you don't like who the BBC gets opinions from?'

    To quickly bring you up to speed, a FOI request to the BBC requesting the attendees at a climate policy direction meeting in 2006 was refused. In fact the process went through to the court system where a six year legal battle has ensued culminating recently with a decision going to the BBC in a finale that had Helen Boaden, director of BBC News, in the witness stand.
    http://www.theregister.co.uk/2012/10/29/boaden_tribunal_information_refusal/

    This is the Helen Boaden that attended the meeting in 2006, along with George Entwistle, Steve Mitchell and Peter Rippon.

    The controversy is that the list of 'opinion setters' has been freely found on the internet making the whole six year legal battle not only a complete waste of time but also license payers money to a speculated six figure number. All to cover a statement made about the change in BBC climate reporting policy after it had been noticed that a wavering in the charter rules was apparent and an excuse was required, apparently.

  • rate this
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    Comment number 19.

    18. ukpahonta wrote:

    "All to cover a statement made about the change in BBC climate reporting policy after it had been noticed that a wavering in the charter rules was apparent and an excuse was required, apparently."

    Long. long, way to go with this issue, time will tell. But if it does become evident that the BBC retrospectively used this meeting as the reason/excuse for moving outside the bounds of their charter, then there are some serious questions to be answered.

  • rate this
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    Comment number 20.

    Current irrelevant happenings at the BBC in order of irrelevance:

    -A list of attendees at a BBC meeting 6 years ago.
    -Anything about Jimmy Savile
    -Newsnight

    Only made relevant by people declaring them as crises.

    Things that are perhaps more relevant that are pushed off the headlines:

    -Continued eurozone financial cloud including political and economic unrest in Greece
    -Civil war in Syria and potential for Iran/Israel hostilities

 

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Hello, I’m Paul Hudson, weather presenter and climate correspondent for BBC Look North in Yorkshire and Lincolnshire. 

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I worked as a forecaster with the Met Office for nearly 15 years locally and at the international unit, after graduating with first class honours in Geophysics and Planetary physics at the University of Newcastle upon Tyne in 1992. I then joined the BBC in October 2007, where I divide my time between forecasting and reporting on stories about climate change and its implications for people's everyday lives.

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