Donald Trump might not be interested about the Arctic. Please share this Forum!
As water builds up in the basin and seeks an outlet, it can actually lift portions of the glacier ever so slightly, and in that lift, the water finds a release. Under the vast pressure of the ice bearing down upon it, the water explodes out into the depths of Mendenhall Lake and from there into the river.Glaciologists even have a name for the process, which is happening in many places all over the world as climates change: jokulhlaup, an Icelandic word usually translated as “glacier leap.”
The ice that tumbles into the ocean along Alaska’s coastline often makes for dramatic images that show one of the ravages of climate change – melting tidewater glaciers that contribute to sea level rise. But a new study finds that far more meltwater is flowing into the sea from a similar, if less frequently photographed source – inland glaciers.Compared to their coastal counterparts, inland glaciers account for 95 percent of glacial mass loss due to climate-driven melting, a study published this month in Geophysical Research Letters shows. In fact, researchers found that Alaska’s glaciers are melting so fast that they would cover the state with a 1-foot thick layer of water every seven years.
Thank you for that analysis!I suppose the take home message is that Alaska is still a pretty small chunk of the total likely contribution compared to the big boys of Greenland and Antarctica...
"An enormous landslide that spread rocky debris more than six miles across a glacier in southeastern Alaska last week was not the first to occur in the area, and certainly will not be the last.The slide, first noticed by Paul Swanstrom, a sightseeing pilot, on June 28, occurred when part of a mountain gave way near Lamplugh Glacier, in Glacier Bay National Park, about 100 miles northwest of Juneau.The slide caused seismic tremors that first registered at magnitude 2.9, , according to data from the Alaska Earthquake Center. But that magnitude was computed as if the tremors were from an earthquake. Scientists at the center later recalculated the magnitude and came up with a higher figure, 5.5."
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