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Sea level rise: head for the hills or drown

Sea level rise: head for the hills or drown

Every week brings a new climate discovery. This week it is an under glacier body of water that COULD raise current sea levels by seven metres. As is always the case, everything is predicated on so many variations that could or might or is conceivable. Well, if the moon turned blue it might not be pale yellow or blood red. While you’re wait for that to happen call in a builder to raise your house at least seven metres, or more if the next warning comes with a new discovery.

Scientists using seismic testing at the largest glacier in east Antarctica find massive subglacial lakes beneath its surface — which they say radically alters estimates on predicted sea level rise. A team of international researchers from the Australian Antarctic Program have this week returned from a 160-day expedition at the Totten Glacier, located near Casey Station — about 3,431 kilometres (2,132 miles) from Hobart.

Source: ABC

Antarctic mission reveals Totten Glacier secrets, along with rethink on sea level rise

Glaciologist Dr Ben Galton-Fenzi said in order to find out what was underneath, researchers drilled into the ice sheet and set off small explosives about two metres below the surface of the glacier, which is up to 30 kilometres wide and up to two kilometres thick.
“These explosions sent out sound waves, which then echoed off different layers in the ice and bedrock,” he said.
“We place geophones along the surface of the glacier to listen to the reflected sound, giving us a picture of what lies beneath the ice.”

The methodology led to the discovery of a network of lakes beneath the ice.

Dr Galton-Fenzi said “a substantial amount of water” was contained in the subglacial lakes, which could impact the rate at which ice flows into the ocean.
“In the context of climate change, we need to understand the characteristics of the bed, because they exert a very powerful control over the flow of the glacier,” he said.
PhD student Madi Gamble Rosevear said the speed at which the Totten Glacier travels was determined by what it moved across.
“As the glacier flows over the land, the properties underneath it control how quickly it flows,” she said.
“So, if there’s soft sediment or water it can slide quite quickly, or if it’s dry, tough rock it’s quite sticky and ice can slide quite slowly.”
While the Intergovernmental Panel on Climate Change (IPCC) estimates sea levels will rise by a metre by 2100, Dr Galton-Fenzi said those estimates did not factor in the increased discharge of Antarctic ice due to climate change.

“The Totten Glacier drains an area of east Antarctica that contains about seven metres of sea level rise equivalent of ice,” he said.
“If I took all the ice contained in the catchment, spread it out over the global oceans, sea levels would go up seven metres.
“We actually know for a fact that the Totten Glacier is one of the regions that’s actually changing.
“We know there’s warm water present under the glacier, so we expect this is one of the regions in east Antarctica that’s going to change first.”

{ 13 comments… add one }
  • Muphin 26/03/2019, 6:16 am

    Heard on channel 7 when watching the weather forecast
    “due to over heating the Pacific ocean is evaporating at an alarming rate, if the evaporation continues sea levels will rise significantly” ????

    • Neville 27/03/2019, 3:05 am

      Some breathlessly earnest reporter-product of modern education, right?

  • Pensioner Pete 26/03/2019, 6:38 am

    Maybe that prize goose, Koshie has input to the weather forecasts?

  • luk1955 26/03/2019, 6:50 am

    These are not scientists, they are radicals out to loosen a glacier to prove their now lying climate theories. there are better ways to get that info than using explosives.

  • Gregoryno6 26/03/2019, 8:34 am

    A mere seven metres rise in sea levels? Maybe?
    Robyn Williams said a hundred metres! Of course, he’s tried to walk it back…

  • Aktosplatz 26/03/2019, 9:14 am

    Same old bullshit again, and this time by letting off explosives under the ice, these pseudo scientists have really no idea as to what they are doing. And yes – the seas “could” (note:’could’) rise by 2100 , when everyone who wrote this garbage is dead.
    These sorts of people have destroyed the credibility of scientists. And never, ever believe any statement which includes the word “could”.

    • Albert 26/03/2019, 10:25 am

      But Akto, they must be right because they all went to university you know.

  • Deano 26/03/2019, 11:24 am

    Funny how the sea can rise by several meters in a matter of years to swallow up a tiny Pacific island, yet my local beach remains unaffected. But unlike normal water, sea water can be piled up in a heap – that’s why you get waves of course. Water skiing makes use of this useful property.

  • J.K. 26/03/2019, 11:58 am

    The only thing that’s rising is the level of bull shit from university trained PhD’s

  • Big Toe Hurts 26/03/2019, 2:27 pm

    More reason why mining should be rapidly expanded. When the big flood from rising sea levels arrives, we will have these big holes for the waters to drain into thus saving the earth.

  • The College Dean 26/03/2019, 2:35 pm

    J.K. I admire the way you are so proud of your stupidity and ignorance. We don’t need no book learnin’ when we have been to the School of Hard Knocks and The University of Life.

    • Aktosplatz 26/03/2019, 5:22 pm

      You’re quite right CD. I remember on our very last day at Uni all so many years ago, they addressed the students and warned us that our academic qualifications would last for 5 years, after which our own personal reputations and experience would supersede it.I found that to be very true, looking back. You can’t beat the University of Life – so true!

  • sheldon bowden 26/03/2019, 7:38 pm

    Financial institutions lend money over 25 to 30 year periods so people can build gigantic buildings on water fronts.. Would they really do this if buidings were going to be underwater in 10 years

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