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Gandalf The White Offline
#1 Posted : 02 August 2012 08:18:42(UTC)
Gandalf The White

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I have agreed with Matty that it's about time for a new thread, as the old one is way past 100 pages.

Let's kick off with yesterday's chart:

 

We are now below 2011, with only 2007 just below.  An interesting and possibly revealing 5-7 weeks ahead.

Edited by user 02 August 2012 10:30:18(UTC)  | Reason: Not specified

Location: Watford, Hertfordshire

65m ASL
51.68N, 0.38W

Quantum Offline
#2 Posted : 02 August 2012 09:00:31(UTC)
Quantum

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Originally Posted by: Gandalf The White Go to Quoted Post

I have agreed with Matty that it's about time for a new thread, as the old one is way past 100 pages.

Let's kick off with yesterday's chart:

 

 

We are now below 2012, with only 2007 just below.  An interesting and possibly revealing 5-7 weeks ahead.

 

Thanks Gandalf, I would direct people to look at the NP webcams: there seems to be very large meltponds appearing this year, in early-mid july there were no melt ponds at all on the NP.

 

ALso bloody hell 24-26C SST in the beaufort, hot enough for a hurricane in tropics!

 

Edited by user 02 August 2012 09:29:55(UTC)  | Reason: Not specified

My YouTube channel: youtube.com/quantumoverlord


Before you ask: Yes I am TWOs biggest resident NAVGEM fan. (RIP NGP 1985-2013).
doctormog Offline
#3 Posted : 02 August 2012 09:50:21(UTC)
doctormog

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I suspect that Beaufort reading is a single station anomaly but will try to find out. A couple of points re. the melt pools at the North Pole webcams:

The pools themselves are not unusual (although perhaps more usual earlier in the season?). Secondly the NP webcam, due to drift is now at 83°N as far as I'm aware. The picture at the Pole itself may be different.

Edit: further investigation into that Beaufort Sea data leads me to think the SST data is being derived from the Shingle Point weather station.

Edited by user 02 August 2012 10:05:00(UTC)  | Reason: Not specified

Gray-Wolf Offline
#4 Posted : 02 August 2012 10:52:46(UTC)
Gray-Wolf

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I thnk the NOAA have an ongoing (2011) buoy prog in the Beaufort sea? Maybe we could track down the some wider temp profiles (and top/bottom melt rates) for the Gyre?

EDIT: I take it folk are not trying to say we have huge seas surface anoms in the Beaufort presently and are merely disputing how widespread GTW's figure is?

Edited by user 02 August 2012 10:54:51(UTC)  | Reason: Not specified

Koyaanisqatsi

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Quantum Offline
#5 Posted : 02 August 2012 11:01:09(UTC)
Quantum

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Originally Posted by: Gray-Wolf Go to Quoted Post

I thnk the NOAA have an ongoing (2011) buoy prog in the Beaufort sea? Maybe we could track down the some wider temp profiles (and top/bottom melt rates) for the Gyre?

EDIT: I take it folk are not trying to say we have huge seas surface anoms in the Beaufort presently and are merely disputing how widespread GTW's figure is?

 

So is the beaufort reading of up to 26C SST an anomoly/inaccuracy or is it real?

My YouTube channel: youtube.com/quantumoverlord


Before you ask: Yes I am TWOs biggest resident NAVGEM fan. (RIP NGP 1985-2013).
PK2 Online
#6 Posted : 02 August 2012 11:13:39(UTC)
PK2

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Originally Posted by: Gray-Wolf Go to Quoted Post

I thnk the NOAA have an ongoing (2011) buoy prog in the Beaufort sea? Maybe we could track down the some wider temp profiles (and top/bottom melt rates) for the Gyre?

EDIT: I take it folk are not trying to say we have huge seas surface anoms in the Beaufort presently and are merely disputing how widespread GTW's figure is?

26C would seem rather surprising if the only warming mechanism is the weather (rather than say volcanic activity or something else). Looking at WUunderground it doesn't look quite so hot?

doctormog Offline
#7 Posted : 02 August 2012 12:04:12(UTC)
doctormog

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Originally Posted by: Quantum Go to Quoted Post

Originally Posted by: Gray-Wolf Go to Quoted Post

I thnk the NOAA have an ongoing (2011) buoy prog in the Beaufort sea? Maybe we could track down the some wider temp profiles (and top/bottom melt rates) for the Gyre?

EDIT: I take it folk are not trying to say we have huge seas surface anoms in the Beaufort presently and are merely disputing how widespread GTW's figure is?

 

So is the beaufort reading of up to 26C SST an anomoly/inaccuracy or is it real?



Yes. It may possibly be 13°C but I think even that is in unlikely (see Shingle Point above).

GW, any progress on that request in the old thread? :)
Bill Illis Offline
#8 Posted : 02 August 2012 13:10:56(UTC)
Bill Illis

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13C would be shocking number. I note the NOAA nighttime SSTs are showing this as well.

Average mean air temperatures are nowhere near this number and there is still 40 days to go before Ocean temperatures peak.
Bill Illis Offline
#9 Posted : 02 August 2012 13:15:57(UTC)
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Tuktoyuktuk,, Canada, on the coast of Beaufort is pretty warm though at 17C. Normal average high temp is 15C, low is 6C.

http://www.weatheroffice...ges/nt-20_metric_e.html
doctormog Offline
#10 Posted : 02 August 2012 13:16:56(UTC)
doctormog

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Originally Posted by: Bill Illis Go to Quoted Post

13C would be shocking number. I note the NOAA nighttime SSTs are showing this as well.

Average mean air temperatures are nowhere near this number and there is still 40 days to go before Ocean temperatures peak.


Yes I agree Bill and I am 99% convinced that it is an anomalous reading - I just cannot find any data to prove it!
nouska Offline
#11 Posted : 02 August 2012 14:20:56(UTC)
nouska

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These obs are not that far from the area of warm water - http://www.ndbc.noaa.gov..._page.php?station=PRDA2

http://www.ndbc.noaa.gov...250&ot=A&time=1

Current conditions up that way -

http://www.weatheroffice...05709&stationID=WKM

Wonder why the two buoys in GSL are giving such different readings?


John S2 Offline
#12 Posted : 03 August 2012 18:16:03(UTC)
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Sea ice area anomaly from the 1979-2008 average has increased to beyond 2 million sq km according to this chart:
http://arctic.atmos.uiuc...eaice.recent.arctic.png
Area is most likely going to reach record low this year. Less clear what will happen with extent.
John S2 Offline
#13 Posted : 03 August 2012 20:48:53(UTC)
John S2

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Volume also likely to be heading for record minimum:
http://psc.apl.washingto...php%20echo%20time%28%29?
Gandalf The White Offline
#14 Posted : 03 August 2012 21:36:53(UTC)
Gandalf The White

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Originally Posted by: John S2 Go to Quoted Post
Sea ice area anomaly from the 1979-2008 average has increased to beyond 2 million sq km according to this chart:
http://arctic.atmos.uiuc.edu/cryosphere/IMAGES/seaice.recent.arctic.png
Area is most likely going to reach record low this year. Less clear what will happen with extent.

Indeed - and just to emphasise how 2012 is shaping up in relation to earlier years, this graph shows a clear trend:

http://arctic.atmos.uiuc.edu/cryosphere/IMAGES/seaice.area.arctic.png

Location: Watford, Hertfordshire

65m ASL
51.68N, 0.38W

Gray-Wolf Offline
#15 Posted : 03 August 2012 21:52:06(UTC)
Gray-Wolf

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I'm struggling to find a sequence of station temps along the C.A. shoreline since May (I know may and early June were cooler than norm but since melt season took off the lack of snow cover and ice retreat has kep temps well over average with the latest ECM models showing a 'well above average' month for Aug? I can only think that the loss of the moderating ice/snow cover is allowing 'normal' weather to now produce abnormal temps??

By the last day of July  ice area dropped below all other ice mins prior to 07' (so we are now already in a pack of only 5 other min's with probably over a month of melt still to go?) I take it folk were too focused on sea surface temps to notice?

I also take it we are all in agreement that the Canadian Archipelago 'Deep channel' has  once again become fully navigable (making it 5 years out of the past 6?)?

To think that only 3 years ago Prof Barber was setting out in search of the 'last Paleocryistic' in the basin in the very sea area seeing these extreme temps?

 

Koyaanisqatsi

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Bill Illis Offline
#16 Posted : 03 August 2012 22:22:55(UTC)
Bill Illis

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Originally Posted by: Gray-Wolf Go to Quoted Post

I'm struggling to find a sequence of station temps along the C.A. shoreline since May

 

I use this page which seems to be accurate enough.

 

Last 90 days.

http://www.cpc.ncep.noaa.gov/products/global_monitoring/temperature/ncanada_90temp.shtml

 

Last 365 days.

http://www.cpc.ncep.noaa.gov/products/global_monitoring/temperature/ncanada_1yrtemp.shtml

 

The Alert station is only reporting periodically now (just a few people left).

 

Gandalf The White Offline
#17 Posted : 03 August 2012 22:31:57(UTC)
Gandalf The White

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Originally Posted by: Bill Illis Go to Quoted Post

Originally Posted by: Gray-Wolf Go to Quoted Post

I'm struggling to find a sequence of station temps along the C.A. shoreline since May

 

I use this page which seems to be accurate enough.

 

Last 90 days.

http://www.cpc.ncep.noaa.gov/products/global_monitoring/temperature/ncanada_90temp.shtml

 

Last 365 days.

http://www.cpc.ncep.noaa.gov/products/global_monitoring/temperature/ncanada_1yrtemp.shtml

 

The Alert station is only reporting periodically now (just a few people left).

 

Clicking on the various coastal locations reveals a predominance of above average temperatures on both charts.  In fact some very significant positive variances.

Good link Bill, thanks.

Location: Watford, Hertfordshire

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Ulric Offline
#18 Posted : 03 August 2012 22:41:20(UTC)
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http://tamino.files.wordpress.com/2012/08/piomas.gif

Edited by user 03 August 2012 22:41:53(UTC)  | Reason: Not specified

Gray-Wolf Offline
#19 Posted : 04 August 2012 10:11:31(UTC)
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Thanks Ulric!

I think when folk decry the 'death spiral' they should look at volume (is thee any other measure of the ice left in the basin?) and it's continued drops since 07'?

If 07' was such an 'outlier' then why did we not see any kind of 'recovery' after the event?

The facts show that we continued to lose mass each year since.

07' , in my opinion, merely showed us that the ice had become so thin as to allow total melt out of sections of the pack. How close was any year , post 97' to this event?

either there was one singnificant event between 97' (previous 'perfect storm synoptics) and 07's perfect storm to allow the loss of area we saw?

I've banged on, this year, about us approaching another threshold of ice thickness which would allow another significant drop in sea ice area, either this year or over the next few years (this time in the abscence of any 'perfect storm'), due to the amount of 'inner basin' open water we see at the beggining of June.

I know the posts above are focussing on 'weather' but at this time of year we should be looking at ocean temp and ice thickness. The thinner the ice and the warmer the water the more this time of year will impact ice nearer the pole. The first we will know of any approaching mega melt will (IMHO) be large areas of low concentration ice with high SSt's in the vicinity.

This is what we see this year.

Koyaanisqatsi

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Gray-Wolf Offline
#20 Posted : 04 August 2012 15:22:09(UTC)
Gray-Wolf

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O.M.G.!!!

http://www.wetterzentrale.de/topkarten/fsecmeur.html

Why didn't you guys point this out to me???

I think we may just be about to witness the mother of all flash melt events over the next 7 days.

I know tues is a long way off but I think we can except that we will be having a L.P. system in the worse possible part of the basin imaginable!

Just imagine the Swells a proper atlantic storm drives. The Old arctic had a solid skin that damped out this type of process. not any more. This may be exactly the type of event needed to smash the ice beyond 80N, and if so, mix the warmer ,saltier waters below the thin halocline we have today and introduce melt across the pole????

We can definately say that the waters in S. Beaufort are exceptionaly warm (maybe not to form a 'cane though?) and these will be driven into the low concentration ice all around it. This amount of overwash will finish off the ice there in a matter of hours.

Looks like we have a very dynamic event afoot guys?

Koyaanisqatsi

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