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Alais Elena
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Take a quick look -- today surface melt was over 40% on Greenland today: We should remain cognizant of the fact that the entire Arctic basin could be covered with only 15% sea ice and still not show a record minimum this year. It doesn't look good.
Toggle Commented Jul 22, 2016 on ASI 2016 update 4: breaking point at Arctic Sea Ice
Well, Jim, that cyclonic storm is still pulverizing the heck outta the sea ice. How many days has the storm lasted so far? When did it begin?
Toggle Commented Jul 18, 2016 on Iced lightning at Arctic Sea Ice
Absolutely agree with Aaron here -- I've been downloading IR satellite images of the Arctic from here since 2007, and it is clear that WV is moving in earlier and earlier in the year. If you check that link now, there is something of a cyclonic storm over the Beaufort.
Toggle Commented Jul 16, 2016 on Iced lightning at Arctic Sea Ice
That is a very telling observation, Kris. Thanks for pointing that out. Tenney
Toggle Commented Sep 11, 2015 on PIOMAS September 2015 at Arctic Sea Ice
It is a mistake of some kind.
Toggle Commented Sep 8, 2015 on PIOMAS September 2015 at Arctic Sea Ice
I wouldn't get my science information from the WSJ, if I were you. For the layperson: "Tornadoes in the United States are increasingly coming in swarms rather than as isolated twisters, according to a study by U.S. government meteorologists published on Thursday that illustrates another trend toward extreme weather emerging in recent years. Looking at tornado activity over the past six decades, the study in the journal Science found the total number of tornadoes annually remaining rather steady, averaging 495. Since the 1970s, there have been fewer days with tornadoes but plenty more days with many of them, sometimes dozens or more. On the list of the 10 single days with the most tornadoes since 1954, eight have occurred since 1999, including five since 2011. That year alone had days with 115, 73, 53 and 52 twisters."
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Oh wow! Did it snow at higher altitudes on the last day in October? Must be weather weirding or something!
Toggle Commented Nov 1, 2014 on Global Warming My Butt at Environmental Economics
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Sorry, I had to sign in using facebook -- for some reason twitter just refuses. And I have not the slightest idea why it says I am logged in as "Alais Elena" which is my daughter's name. Tenney Naumer
Toggle Commented Apr 14, 2013 on PIOMAS April 2013 - extra update at Arctic Sea Ice
As someone who peered at photos from 4 different satellites nearly every day for the past 5 years, this information comes only as a shock to my innate hopefulness that things were not as bad as they really are. Time for the modelers to do major mea culpas and get out of the way!!!
Toggle Commented Aug 11, 2012 on More news on CryoSat-2 at Arctic Sea Ice
R. Gates has beaten me to the punch while I was preparing a blog post (I almost never write my own, as everyone knows, but instead steal the excellent work of others) on the topic of what happens to the heat given off by the freezing during winter. NASA's Earth Observatory has a very good global animation of the water vapor cycle that shows how water vapor accumulates over the poles during their respective winters. (Animation posted at link below.) However, this WV disappears fairly abruptly possibly by means of the mechanism shown in the NASA animation of the splitting of the polar vortex (which always awes the hell outta me when I watch it). In January this year, I was able to download a satellite photo from the Canadian Weather Office of what may be this process in action. Anyway, I posted all these items here: Posted by Tenney Naumer
Toggle Commented Aug 11, 2012 on ASI 2012 update 9: stormy weather at Arctic Sea Ice
@Apocalypse4Real, the thickness graphics are horrifying. Do you have any sense of their accuracy? They don't seem to follow the MODIS true color images that well (hope springs eternal). Thanks, Tenney
Toggle Commented Aug 11, 2012 on New site with new thickness maps at Arctic Sea Ice
Sorry, I should have left the link -- there are 23 articles under "Storm tracks moving northwards": Posted by Tenney Naumer
Toggle Commented Aug 10, 2012 on Arctic summer storm open thread 1 at Arctic Sea Ice
I have been interested in the poleward shift of storm tracks for some years -- I even have specific labels on my blog for these articles -- here is one by Caldeira from 2008: Posted by Tenney Naumer
Toggle Commented Aug 10, 2012 on Arctic summer storm open thread 1 at Arctic Sea Ice
Sure. The ice now is so much thinner and "rotten" that there is almost no comparison with 2008. There was another big melt out in the region of the present cyclone in 2008. I scrounged around in my old USB drive and found 3 sea ice concentration graphics from August 10, 17 and 30, 2008, that show how bad a hit the ice took (this is a simple blogspot blog -- you have to hit the page down key a couple of times to get to the post):
Toggle Commented Aug 10, 2012 on Arctic summer storm open thread 1 at Arctic Sea Ice
There is a very good article on NASA's site from 2008 ( showing the increase in storms coming into the Arctic. The figure shows the paucity of storms during 1950-1972 and a much larger number during just 2000-2006. Sea ice speed increased 300%. Posted by Tenney Naumer
Toggle Commented Aug 10, 2012 on Arctic summer storm open thread 1 at Arctic Sea Ice
Actually, Jeffrey, the second RealClimate post on Arctic methane (written by a guest), in particular, was extremely weak and full of holes, as pointed out by the many commenters. Semiletov and Shakhova, using sediment cores, found that the subsea clathrates were no longer frozen but actually were already slushy. They also found that the temperature at which they melted was only slightly less than -0.5 C. The depth of the sea over the vast shelf off Siberia is only 50 to 250 feet, and the waters are warming rapidly, reaching even 10 C. It would not be logical to shrug off the danger of the melting clathrates.
Toggle Commented Aug 10, 2012 on Further detachment at Arctic Sea Ice
Sorry, it was in 2008:
Toggle Commented Aug 10, 2012 on Further detachment at Arctic Sea Ice
Separation from the pack also occurred in roughly the same region in 2007
Toggle Commented Aug 10, 2012 on Further detachment at Arctic Sea Ice
Paul, do you think that a strong storm like this one could ever get that huge pool of fresh water accumulating in the Beaufort region (but originating from the Siberian river outflows) to spill out to the North Atlantic?
NSIDC graph updated through Aug. 6 shows nothing unusual in what should have been a more notable decline: Posted by Tenney Naumer
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Aug 7, 2012