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Greenland ice melt is happening at an unexpectedly fast rate

Greenland ice melting four times faster than in 2003, study finds, Southwest part of the island could be major contributor to sea level rise, EurekAlert, 21 Jan 19, OHIO STATE UNIVERSITY     COLUMBUS, Ohio – Greenland is melting faster than scientists previously thought–and will likely lead to faster sea level rise–thanks to the continued, accelerating warming of the Earth’s atmosphere, a new study has found.

Scientists concerned about sea level rise have long focused on Greenland’s southeast and northwest regions, where large glaciers stream iceberg-sized chunks of ice into the Atlantic Ocean. Those chunks float away, eventually melting. But a new study published Jan. 21 in the Proceedings of the National Academy of Sciences found that the largest sustained ice loss from early 2003 to mid-2013 came from Greenland’s southwest region, which is mostly devoid of large glaciers.

“Whatever this was, it couldn’t be explained by glaciers, because there aren’t many there,” said Michael Bevis, lead author of the paper, Ohio Eminent Scholar and a professor of geodynamics at The Ohio State University. “It had to be the surface mass–the ice was melting inland from the coastline.”

That melting, which Bevis and his co-authors believe is largely caused by global warming, means that in the southwestern part of Greenland, growing rivers of water are streaming into the ocean during summer. The key finding from their study: Southwest Greenland, which previously had not been considered a serious threat, will likely become a major future contributor to sea level rise………https://www.eurekalert.org/pub_releases/2019-01/osu-gim011419.php

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January 22, 2019 - Posted by | ARCTIC, climate change, oceans

1 Comment »

  1. https://gracefo.jpl.nasa.gov/resources/33/greenland-ice-loss-2002-2016/
    “Research based on observations from the NASA/German Aerospace Center’s twin Gravity Recovery and Climate Experiment (GRACE) satellites indicates that between 2002 and 2016, Greenland shed approximately 280 gigatons of ice per year, causing global sea level to rise by 0.03 inches (0.8 millimeters) per year”

    0.8 mm/y out of the current 3.0 mm/y

    https://en.wikipedia.org/wiki/Greenland_ice_sheet
    “Analysis of gravity data from GRACE satellites indicates that the Greenland ice sheet lost approximately 2900 Gt (0.1% of its total mass) between March 2002 and September 2012. The mean mass loss rate for 2008–2012 was 367 Gt/year.”

    In the ten years between 2002 and 2012 Greenland lost 2900 Gt which represented –
    (0.1% of its total mass) (Yep, read the fine print.)

    YES – AN ASTONISHING, NAY STAGGERING EVEN, ZERO POINT 1 PERCENT OF ITS TOTAL MASS!!!!!!!!

    Are you effing kidding me? The uncertainty must be 10 times that much.

    Who measures this crap and thinks the numbers have substance???

    Probably those barely 20 millennials with their participation PhDs.

    Comment by nickreality65 | February 5, 2019 | Reply


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