Thursday, 14 December 2017

From the Arctic - 12/13/2017

On Thin Ice

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Found this on Twitter. Puts the phrase “on thin ice” in some perspective. Freaking Mid-December in total darkness up there and the ice is thin AF. Volume looks awful. Still largely open water in Chukchi Sea and northern Bering Sea and seriously recessed near Svalbard. Genuinely wondering if we will witness collapse of Arctic sea ice next warm season given this picture and relentless heat. 2016 may have set it on that track continuing into 2017 and soon ‘18. It just looks so bad yo! A major Arctic storm could shred the ice at any time frankly.

--Nicholas Humphrey, via Facebook

Methane 12 13 2017 North America. California is showing excess methane emissions.
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Methane at 2590 ppb

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Arctic Sea Ice daily ammo against Collapse Cultists & Climate Deniers.

Daily volume: 12,685 km³ (4th lowest for the date) Δ +188/day
+1257/week, +3,880/month, +1940/year, +918/5year (+7.8%)
–8,541 (–40% 80s), –7,103 (90s), –3,210 (00s), –89 (2010–16)
Daily extent: 11,289,242 km² (2nd lowest for the date) Δ +87k/day
+663k/week, +2,289k/month, +436k/year, –2k/5year (–0%)

2017 volume maximum 20,756 km³ on April 18th (*lowest*)
2017 volume minimum 4,539 km³ on September 11th (4th lowest)
2017 extent maximum 13,878,287 km² on March 6th (*lowest*)
2017 extent minimum 4,472,225 km² on September 9th (6th lowest)
However, the above daily numbers carry a taste of  ?. If you don’t want to cherry–pick your data to make a point, you may want to look at the latest, updated, running annual average. The ice, after all, has to be out there and survive those waves 24/7, 365 days of the year.
Annual volume: 12,799 km³ (*record* low) Δ +5.3/day
+31.9/week, +125/month, –930/year, –758/5year (–5.6%)
Annual extent: 9,949,084 km² (2nd lowest) Δ +1.2k/day
+10k/week, +56k/month, +214k/year, –20k/5year (–0.2%)
Source: JAXA / PIOMAS (app estimate) for December 12th 2017

Alaska sees record-high temperatures in December

JUNEAU, Alaska (AP) - An unprecedented heat wave has toppled weather records across Alaska.
The Juneau Empire reports the National Weather Service thermometer Friday at Juneau International Airport hit 54 degrees, tying the highest temperature recorded in December there.
General forecaster for the Weather Service in Juneau Devid Levin says the heat wave in Alaska is due to a big ridge of upper-level high pressure. With the jet stream moving to the north, warm air from the tropics has moved north, covering the state.
Records kept by the Weather Service since 1936 say three of the 10 warmest December days in Juneau's history have come in the past week.

It was warmer Friday in Juneau than it was in Houston, Jacksonville, Florida or Monterrey, Mexico.

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