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
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
Edited by user 02 August 2012 10:05:00(UTC) | Reason: Not specified
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
So is the beaufort reading of up to 26C SST an anomoly/inaccuracy or is it real?
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
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?
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.
http://tamino.files.wordpress.com/2012/08/piomas.gif
Edited by user 03 August 2012 22:41:53(UTC) | Reason: Not specified
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.
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?