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Old 04-02-2018, 09:32   #16
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Re: Northwest Passage - 2018

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Originally Posted by newhaul View Post
sorry but it looks to me to be still below 0įf
https://www.weather-forecast.com/map...one&type=lapse
Looks like the temperature at the North Pole is projected to reach -6C, or 21F, on Monday, Feb 5. That's some 40 degrees F warmer than typical for this time of year.


https://www.yr.no/place/North_Pole/O...Pole/long.html
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Old 04-02-2018, 09:46   #17
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Re: Northwest Passage - 2018

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Originally Posted by SailOar View Post
Looks like the temperature at the North Pole is projected to reach -6C, or 21F, on Monday, Feb 5. That's some 40 degrees F warmer than typical for this time of year.


https://www.yr.no/place/North_Pole/O...Pole/long.html
that is the forecast but it looks like after that one odd day it goes back below 0
We both know what happens to forecasts . They are almost never correct ( temps are always one way or the other . )
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Old 14-02-2018, 07:51   #18
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Re: Northwest Passage - 2018

Melting Arctic Permafrost Could Release Tons of Toxic Mercury | National Geographic

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A study published in the journal Geophysical Research Letters reports that the amount of natural mercury bound up in Arctic permafrost may be 10 times greater than all the mercury humans have pumped into the atmosphere from coal-burning and other pollution sources over the last 30 years. As climate change warms the land, this thawing permafrost could release significant quantities of mercury back into the environment, potentially allowing far more of the pollutant to build up in the atmosphere and the food web...

Thanks to complex atmospheric and ocean processes, more mercury winds up in the high northern latitudes than anywhere else. Itís already known to build up there in birds, fish, seals, walrus, polar bears and some whales, even in areas thousands of miles from pollution sources. As a result of this long-distance pollution, indigenous people across the Arctic who rely on subsistence hunting for food have some of the highest levels of mercury in their blood.

The same winds and currents that send mercury north today have been at work for tens of thousands of years, depositing natural mercury in high concentrations across the Arctic. Since that mercury has been trapped in frozen ground for millennia, it hasn't done damage to wildlife or humans. But now Arctic permafrost, which accounts for 24 percent of all land in the Northern Hemisphere, is thawing and threatening to release this massive store. And, until recently, we didn't have any idea how much was there...
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Old 14-02-2018, 08:18   #19
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Re: Northwest Passage - 2018

meanwhile this winter historic cold temperature records are being broken and set across the majority of the northern hemisphere.
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Old 15-02-2018, 10:29   #20
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Re: Northwest Passage - 2018

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meanwhile...
First ship crosses Arctic in winter without an icebreaker as global warming causes ice sheets to melt | The Independent

In December, the tanker, Eduard Toll, made its way from South Korea to the Sabetta terminal in northern Russia via the Northern Sea Route. From there, it sailed to Montoir in France to deliver a load of liquefied natural gas.

One study suggested European routes to Asia will become 10 days faster via the Arctic than alternatives by the middle of the century, and 13 days faster by the end.

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Old 15-02-2018, 10:58   #21
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Re: Northwest Passage - 2018

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First ship crosses Arctic in winter without an icebreaker as global warming causes ice sheets to melt | The Independent

In December, the tanker, Eduard Toll, made its way from South Korea to the Sabetta terminal in northern Russia via the Northern Sea Route. From there, it sailed to Montoir in France to deliver a load of liquefied natural gas.

One study suggested European routes to Asia will become 10 days faster via the Arctic than alternatives by the middle of the century, and 13 days faster by the end.

the part that seems to have been intentionally left out of this article is the fact this vessel is by design also a heavy icebreaker.

http://teekay.com/blog/2018/01/31/ed...ing-delivered/
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Old 18-02-2018, 18:22   #22
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Re: Northwest Passage - 2018

Polar ice is lost at sea | Grist
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Our planet reached another miserable milestone earlier this week: Sea ice fell to its lowest level since human civilization began more than 12,000 years ago...

So far, the new year has been remarkably warm on both poles. The past 30 days have averaged more than 21 degrees Fahrenheit warmer than normal in Svalbard, Norway ó the northernmost permanently inhabited place in the world. Last month, a tanker ship completed the first wintertime crossing of the Arctic Ocean without the assistance of an icebreaker. Down south in the Antarctic, sea ice is all but gone for the third straight year as summer winds to a close...

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Old 18-02-2018, 18:45   #23
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Re: Northwest Passage - 2018

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sea ice extent means nothing to many variables and we all know that. What matters is sea ice volume . And volume is within the standard deviation .
http://ocean.dmi.dk/arctic/icethickness/thk.uk.php
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Old 18-02-2018, 18:56   #24
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Re: Northwest Passage - 2018

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sea ice extent means nothing to many variables and we all know that. What matters is sea ice volume . And volume is within the standard deviation .
From the Grist article, here is why sea ice extent is very important -- without minimizing that ice volume is important too.

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...The loss of Earthís polar sea ice has long been considered one of the most important tipping points as the planet warms. Thatís because as the bright white ice melts, it exposes less-reflective ocean water, which more easily absorbs heat. And that, sorry to say, kicks off a new cycle of further warming...
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Old 18-02-2018, 19:00   #25
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Re: Northwest Passage - 2018

Actually I just looked at the graphs for arctic and it is at 14.2 million km^2 and Antarctic at 2.2 million km^2 for a total of 16.4 km^2 so about a half million km^2 above what the graph you posted shows.
But that is just a minor difference in extent . The real measure is volume . Arctic is about 22000 km ^3
And I'm looking for southern measurements.
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Old 18-02-2018, 19:05   #26
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Re: Northwest Passage - 2018

Lets see what this Antarctic winter brings as far as extent. Besides southern summer extent has little effect on warming due to most of the Antarctica is ice and snow year round.
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Old 18-02-2018, 20:49   #27
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Re: Northwest Passage - 2018

Here is an interesting chart graph I found from the DOE.
Look at the winter maximum of 1945-46
It was only 6.2 million km^2
According to the chart.
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Old 21-02-2018, 19:51   #28
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Re: Northwest Passage - 2018

Arctic temperatures soar 45 degrees above normal, flooded by extremely mild air on all sides | Washington Post

While the Eastern United States simmers in some of its warmest February weather ever recorded, the Arctic is also stewing in temperatures more than 45 degrees above normal. This latest huge temperature spike in the Arctic is another striking indicator of its rapidly transforming climate.

For Feb 20th, (unofficial) average daily temperature departure-from-normal for North Slope locales:
Umiat: +45F (+25C) ,
Deadhorse +44F,
Nuiqsut: +43F,
Wainwright: +40F
Utqiaġvik: +39F,
Kaktovik +35F.
#akwx @Climatologist49 @CinderBDT907

Temperatures over the entire Arctic north of 80 degrees latitude have averaged about 10 degrees (6 Celsius) above normal since the beginning of the calendar year, sometimes spiking over 25 degrees (14 Celsius) above normal (the normal temperature is around minus-22, or minus-30 Celsius).

The temperature difference from normal over the Arctic
averaged over the next five days in the GFS model forecast.
(University of Maine Climate Reanalyzer)
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Old 21-02-2018, 21:13   #29
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Re: Northwest Passage - 2018

Quote:
Originally Posted by SailOar View Post
Arctic temperatures soar 45 degrees above normal, flooded by extremely mild air on all sides | Washington Post

While the Eastern United States simmers in some of its warmest February weather ever recorded, the Arctic is also stewing in temperatures more than 45 degrees above normal. This latest huge temperature spike in the Arctic is another striking indicator of its rapidly transforming climate.

For Feb 20th, (unofficial) average daily temperature departure-from-normal for North Slope locales:
Umiat: +45F (+25C) ,
Deadhorse +44F,
Nuiqsut: +43F,
Wainwright: +40F
Utqiaġvik: +39F,
Kaktovik +35F.
#akwx @Climatologist49 @CinderBDT907

Temperatures over the entire Arctic north of 80 degrees latitude have averaged about 10 degrees (6 Celsius) above normal since the beginning of the calendar year, sometimes spiking over 25 degrees (14 Celsius) above normal (the normal temperature is around minus-22, or minus-30 Celsius).

The temperature difference from normal over the Arctic
averaged over the next five days in the GFS model forecast.
(University of Maine Climate Reanalyzer)
that's quite interesting when many places above the arctic circle have been having record cold temperatures for most of the winter.
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Old 21-02-2018, 21:19   #30
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Re: Northwest Passage - 2018

Quote:
Originally Posted by SailOar View Post
Arctic temperatures soar 45 degrees above normal, flooded by extremely mild air on all sides | Washington Post

While the Eastern United States simmers in some of its warmest February weather ever recorded, the Arctic is also stewing in temperatures more than 45 degrees above normal. This latest huge temperature spike in the Arctic is another striking indicator of its rapidly transforming climate.

For Feb 20th, (unofficial) average daily temperature departure-from-normal for North Slope locales:
Umiat: +45F (+25C) ,
Deadhorse +44F,
Nuiqsut: +43F,
Wainwright: +40F
Utqiaġvik: +39F,
Kaktovik +35F.
#akwx @Climatologist49 @CinderBDT907

Temperatures over the entire Arctic north of 80 degrees latitude have averaged about 10 degrees (6 Celsius) above normal since the beginning of the calendar year, sometimes spiking over 25 degrees (14 Celsius) above normal (the normal temperature is around minus-22, or minus-30 Celsius).

[IMG]http4s://s14.postimg.org/ugbsbnxip/Arctic_Temperature_Anomoly.jpg[/IMG]
The temperature difference from normal over the Arctic
averaged over the next five days in the GFS model forecast.
(University of Maine Climate Reanalyzer)
hate the departure from normal claims what they should do is list the normal temps and the actual temperatures dead horse is still well below freezing even if it is above average.also it will be dropping about 20 deg by the weekend back to near normal well into negative degree Fahrenheit temperatures.
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