Sweltering in the Arctic

June 19, 2020

11 Responses to “Sweltering in the Arctic”

  1. grindupbaker Says:

    Wonky Jet Stream. The Climate Reanalyzer shows a large area of central North America as up to 10 degrees colder than the 1979-2000 base-line (not shown or discussed in the TwitFacings or this post) with regions up to 10 degrees warmer than the 1979-2000 base-line flanking it. Same thing for Asia except that the central region up to 10 degrees colder has regions with a portion up to ~15 degrees warmer than the 1979-2000 base-line. Looks like Wonky Jet Stream to me.

    • Wow

      local air temperatures are a little lower

      You should start a fruit stall for all those cherries you pick

    • Lionel Smith Says:

      OK Explain why the jet stream is ‘wonky’.

      • dumboldguy Says:

        In short, IMO it’s because the Arctic has warmed so much more than any other part of the planet in recent years. It was the temperature differential between the Arctic and the temperate zone that fueled the “old” jet stream—-the new one is getting punched by masses of warm air and is still feeling its way.

        PS The cur off low is still lurking in the mid-Atlantic region of the east coast and soaking us with rain. Yesterday was unusual—-hour after hour of dozens of small thunderstorms marching through, flash flood warnings, etc.

        • dumboldguy Says:

          CUT off low

        • Lionel Smith Says:

          I was asking a rhetorical question for it appeared that giddyupbaker was trying to avoid the implication that global warming was the big baddy here causing instability in the jet streams, with the disparity in the rate of warming between high and low latitudes being a prime factor.

          As long ago as the 1980s I had understood this thanks to an excellent text for its day:

          Atmosphere, Weather, & Climate by Roger Graham Barry, Richard J. Chorley

          which I had first come across at Uni in the early 1980, this after two decades in the Royal Navy’s aviation world involved with amongst other aircraft the F4 Phantom (I worked on other classics like the Canberra, Hunter and Sea Vixen putting in sea time on two carriers along the way.)

          Whilst visiting the local library, I scanned the books they were withdrawing and selling, a habit of mine, and noticed the above mentioned, Fourth Edition, which I quickly snapped up for the princely sum of 75 pence (¾ of £1). I used it for revision prior to a job interview for a post as a scientific officer with the UK Met’ Office in the early 1990s. I still have this book today.

        • grindupbaker Says:

          The underlying thing about Coriolis Effect is that it’s:
          Accelerationeast> = f (Velocitynorth>, latitude)
          and not
          Velocityeast> = f (Velocitynorth>, latitude)
          Nothing else in this thread worth replying to. Dumber than a bag of hammers.

    • rhymeswithgoalie Says:

      We broke the Arctic, and that broke the Jet Stream.

      We should be cycling into a new glaciation, but that’s been shot to hell.

      AFAICT, the only part of the planet which will work in 2070 like it did 100 years early is orbital mechanics and plate tectonics.

      • grindupbaker Says:

        Yes. The next glaciation started 7,000 years ago but it only went down 0.6 instead of the usual 1.2 because CO2 from 6,000 years ago & CH4 from 4,000 years ago. I suppose AFAICT means as far as in current trends. I’m pretty sure AABW will not have changed much by 2070 AD. AABW, plate tectonics & orbital mechanics.

  2. […] serious fuckery at the VOA, an epitaph for a lot of empires, and in the “Hot enough for you?” […]

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