Never pass up a chance to sit down or relieve yourself. -old Apache saying

Tuesday, February 27, 2018

Arctic heat

Too bad it's not a porn title. 

Rising seas, melting polar ice caps, and we move onto a sandbar off the coast of Texas? Go figure!

Arctic Temperatures Surge in the Dead of Winter
(CNN) Winter is still in full swing in the North Pole, but temperatures this week have been downright summerlike in the Arctic.
Although it is shrouded in the darkness of a 24-hour polar night, temperatures in the Arctic have soared well above freezing this week, marking the hottest temperatures recorded in the region during winter, according to scientists from the Danish Meteorological Institute.
Calculations from Cape Morris Jessup, the world's northernmost land-based weather station, show that temperatures from February in eastern Greenland and the central Arctic are averaging about 15°C (27°F) warmer than seasonal norms.
And although the Arctic has seen temperatures climbing for decades, the past few years have seen the most extreme changes, according to Martin Stendel, a climate scientist at DMI. For the past 20 years, temperatures above freezing in February have only been recorded three times -- first in 2011, then in 2017 and now.
    "For years, absolute values of temperatures have become higher and higher, but if you look a couple years back it's not so interesting whether the temperatures were minus 10 degrees C or minus 5 degrees C because the temperature was still well below zero," Stendel said.
    But this month's unusual rises are interesting -- and unprecedented -- and have continued for a record nine days in a row.
    Zack Labe, a climate scientist at the University of California at Irvine, tweeted a chart demonstrating how dramatically different this February's temperature is.
    2018 is well exceeding previous years (thin lines)
    for the month of February. 2018 is the red line.
    Average temperature is in white 
    In the past, it was not unusual for the Arctic to see days where temperatures would peak above minus 10 C (14 F), but what we are seeing now is different. Those peaks are becoming more frequent and long-lasting.
    More worryingly, the warming weather pattern is producing a circular affect.
    The warmer the air and water, the less sea ice there is. And the less sea ice there is, the warmer the air and water can get (and stay warm). This, in turn, leads to less sea ice -- and the vicious cycle continues.
    For example, in Alaska, residents of the island village of Diomede are baffled at the open ocean water this February. There, residents are seeing the scientific findings in the Arctic play out in their own backyards. February should be the height of the sea ice season -- but instead, crashing waves are changing their town's coastline. The US National Oceanic and Atmospheric Administration's head of Arctic research, Jeremy Mathis, told CNN that in many years of Arctic research, 2017 marked the first time that he and his group of researchers spotted no ice in the seas off Alaska.
    "This year in 2017 during a 25-day cruise in the Arctic, we didn't see a single piece of ice," Mathis said. "We were sailing around on a Coast Guard icebreaker in blue water that could have been anywhere in the world. And it certainly didn't look like the Arctic."
    Arctic sea-ice masses have been shrinking in size over the January and February months since 1980. Data from January and February 2018 has so far demonstrated the most dramatic losses in size, according to the National Snow and Ice Data Center. Last year had been the worst year for greatest loss in volume of sea ice until now.
    Like the rising temperatures, sea-ice masses are also setting new records -- but not the good kind. "It seems like every winter we get a new record minimum at the moment," Graham says.
    He holds onto the hope that public concern over the Arctic's rising temperatures will help shine a light on the issue he is most concerned about: shrinking sea ice. "These simple events can seem quite shocking at the time but it's what they do to bring attention to the large-scale sea ice that's important."
    While the Arctic warms up, most of Europe has been hit with a cold snap that has extended into this week. The cold weather, dubbed "the beast from the East," is the result of cold winds from Siberia sweeping across many parts of Europe.
    Jason Box, an American scientist and professor of glaciology at the Geological Survey of Denmark and Greenland, said that cold air from the Arctic has been pushed away from its normal hovering position.
    It's now found itself invading more temperate locations like Rome, where locals woke up on Monday to find their city covered in snow for the first time in more than five years.
    The rest at the Original.

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