Early November Arctic temperatures

Figure 1 – Data courtesy of NCEP reanalysis

There’s the usual ring of abnormally high positive temperature anomalies around the Arctic at the start of November (fig 1). I had a theory that the largest anomalies were located in areas of open water where no sea ice had formed, but this theory doesn’t look too plausible judging by the latest sea ice extent chart (fig 2). I notice that the recent cold weather in Canada has encouraged early ice formation around the coast of the Hudson Bay, but the area to the north of the Chukchi sea look severely depleted of any sea ice again for this time of the year.

Figure 2 – Data courtesy of the NSIDC

 

About xmetman

An ex-metman passionate about all things to do with weather, climate and clouds

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3 Responses to Early November Arctic temperatures

  1. quaesoveritas says:

    Using temperature anomalies is ok for climatological purposes but they don’t really tell you how cold it is, without knowing what the normal temperature is.
    An anomaly of +5c in winter could be colder than -5c in summer.

  2. 1saveenergy says:

    Another good example of why using anomalies in isolation is bad, a layman (& we’ve all been there) would look at fig 1 & assume these are actual temperatures, thus re-enforcing the claptrap we get from Gore Mann & Wadams, via the BBC & MSM.

    The ACTUAL temperatures °C at ~ those positions going clockwise from Norway are –

    +4 = -4.9:
    -3 = -38.6
    +2 = -8.9
    +9 = -4.4
    +10 = -4.4
    +5 = -24.3
    +10 = -8.2
    +5 = -20.9
    The -3 in the middle = -23.9
    From
    https://earth.nullschool.net/#current/wind/surface/level/overlay=temp/orthographic=-1.54,81.14,274/loc=19.698,68.075

  3. quaesoveritas says:

    i wonder how many people think there is currently no ice in the arctic?
    If you told people that all of the ice had melted, some would probably believe you.
    I would love to do a survey.