The Weekend Wonk: Understanding the Indian Ocean Dipole

June 7, 2019

Sort of like El Nino for Oz. (although they get El Nino, too..)

Matter of fact, the Australian Bureau of Meteorology has an explainer for that, too, below.

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5 Responses to “The Weekend Wonk: Understanding the Indian Ocean Dipole”

  1. redskylite Says:

    Excellent informational videos from BOM – BOM always put out the latest IOD state during their fortnightly ENSO wrap-up, presenting good plain information.

    The video didn’t mention iany trends with climate change, especially associated effects with recent observed ENSO magnitude and frequency increases.

    A surprisingly large amount of folks seem to still think that sea level change is a load of leftist nonsense and carry on polluting as normal (as if it is their right).

    Pity., but I guess we should be grateful for the people who are already convinced.

    “50% of surveyed NSW coastal users don’t think that sea level rise will impact them, a report into the NSW community’s views on coastal hazards shows.”

    https://newsroom.unsw.edu.au/news/science-tech/1-2-people-nsw%E2%80%99s-coastal-community-don%E2%80%99t-think-sea-level-rise-will-impact-them

  2. Brent Jensen-Schmidt Says:

    The BOM has El nino watch at ‘alert’ level = 70% chance of happening. Joy!

    • rhymeswithgoalie Says:

      On the positive side, strong El Niño years increase wind shear in the Atlantic, which tends to reduce the number of hurricanes that form in the Atlantic and Caribbean.

  3. grindupbaker Says:

    ENSO has been pulling away. I had it pegged at 1990 AD for 5 years but I just came across the wind speed again and it’s anywhere between 1990-2000.
    +0.165 degrees / decade: Surface La Nina & ENSO-neutral years 1970-2014 (from GISTEMP)
    +0.20 degrees / decade: Surface El Nino years 1966-1990 (GISTEMP)
    +0.23 degrees / decade: Surface El Nino years 1990-2014 (GISTEMP, high uncertainty, sparse & varied data points)
    “Atlantic warming turbocharges Pacific trade winds”


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