Study finds more than 40% of ice shelves have shrunk, with millions of tonnes of freshwater entering ocean
  • @[email protected]English
    6•1 year ago

    Not that it matters much for my understanding, as these numbers are too big for my brain to grasp anyway, but what does that unit prefix “tn” stand for?

    While reading the article in my head I read it as “tera tonne” but wouldn’t that be “Tt”?

    I hope it’s at least a metric tonne and not one of the other weird short or long tonnes.

    • WalrusDragonOnABike
      2•1 year ago

      About a centimeter (spread out across the oceans).

      “1/361.8 mm of sea-level rise per Gt of ice loss” is the assumption they use for that.

        • WalrusDragonOnABike
          1•1 year ago

          Tera = 1000 gigas. Idk if they are doing a switch between metric and imperial tons as well but that difference is less than the margins of error anyways.

            • WalrusDragonOnABike
              1•1 year ago

              ( (1/361.8 mm of sea-level rise per Gt of ice loss) * 1000) * 7.5 = 20.73mm. Which is about double what the actual paper says, so there’s probably some weird metric vs imperial issues.