Snow And Ice In The Northern Hemisphere Autumn/Winter 2014

[lorenzo]

Thought I would share this link as good fun to play around with..found it whilst looking for a decent dataset that would allow some graphs to be built,not found yet, but nevertheless a good archive of SCE that can be opened and viewed via a NOAA App.

 

http://data.ncdc.noaa.gov/thredds/catalog/cdr/snowcover/catalog.html?dataset=cdr/snowcover/nhsce_v01r01_19661004_20140901.nc

 

Pity the dataset is not real time as along with the traditional views it also translates to Google Earth.

 

Couple of images attached for examples.

 

 

 

[Mark Bayley]

Looks interesting Lorenzo, thanks for the link, i'll have a play around with it. May come useful for my masters dissertation as im considering a project on sea ice/snow cover change and its link to mid-latitude weather. Just searching for datasets on snow cover so if you find any decent ones id be interested to see! As side note good to sea snow extent is looking much above average, bodes well with Cohens theory and more favourable phase of the QBO

[LincolnSnowstorm]

Thought I would share this link as good fun to play around with..found it whilst looking for a decent dataset that would allow some graphs to be built,not found yet, but nevertheless a good archive of SCE that can be opened and viewed via a NOAA App.

 

http://data.ncdc.noaa.gov/thredds/catalog/cdr/snowcover/catalog.html?dataset=cdr/snowcover/nhsce_v01r01_19661004_20140901.nc

 

Pity the dataset is not real time as along with the traditional views it also translates to Google Earth.

 

Couple of images attached for examples.

1979 SCE.png1979 SCE Earth.png

Beyond me but keep playing with it Lorenzo and others ,images look great and go back further than the noaa snow and ice ones for potential interesting comparisons.

Edited October 16, 2014 by LincolnSnowstorm

[gottolovethisweather]

Good to see the regular posters in here providing lots of links as ever and I'd just like to flag up my own taken just now from the MOD thread.

 

https://forum.netweather.tv/topic/81482-model-output-discussion-1200-hrs-300914/?p=3055401

 

The cold is hanging on and maybe even building in the right parts of the globe.

[LincolnSnowstorm]

Norway is going to try for some snow

 

.http://www.snow-forecast.com/maps/dynamic/europe?over=none&symbols=snow&type=snow.next3to6days

Fill her up I'd say! Good example from nearly a months time in 2010

 

It brings the cold nearer and It does our chances no harm as shown in  the past.

 

 

[Mark Bayley]

Just to illustrate some of the features on the software Lorenzo posted. Here is a video showing the snow extents for a date in the last week of October since 1966 ( the method is not very scientific, and is just done to show software). Although basic there are hints of a decrease in extent during the mid 80's to 90's and recent increase, although ofc a better data set would be needed. Definitely fun software to play around with though!

Edited October 16, 2014 by Mark Bayley

[throwoff]

Yesterday -

 

 

Today -

 

 

 

Some SERIOUS ice growth, great to see.

[Interitus]

Lovely 360 Cam and Road cam link J10  , looks like a real special placehttp://en.wikipedia.org/wiki/Honningsv%C3%A5g  would be good for the snow fix  if the forecast improves http://www.yr.no/place/Norway/Finnmark/Nordkapp/HonningsvÃ¥g/long.html

 

There is a 360 cam actually on the roof of the Nordkapphallen building at Nordkapp - http://nordkapp.livecam360.com/cam3/flash/main.php

Oddly enough the peninsula that can be seen just to the west, Knivskjellodden, actually extends further north.

[Interitus]

Don't know if posted before but this site links a load of the 360 cams from Norway and elsehwere - http://www.panomax.at/index_en.html

[No Balls Like Snow Balls]

Good one of Honningsvag

http://honningsvag.livecam360.com/flash/main.php

[radiohead]

2009 :

 

 

2014 :

 

[Yarmy]

Good one of Honningsvag

http://honningsvag.livecam360.com/flash/main.php

 

Superb. Who's up for an Aquavit in the Artico Icebar (with Tax Free Shopping!)?

[LincolnSnowstorm]

 

Yesterday -

 

 

 

Today -

 

 

 

 

Some SERIOUS ice growth, great to see.

 

Long may it continue

[LincolnSnowstorm]

There is a 360 cam actually on the roof of the Nordkapphallen building at Nordkapp - http://nordkapp.livecam360.com/cam3/flash/main.php

Oddly enough the peninsula that can be seen just to the west, Knivskjellodden, actually extends further north.

I find road cams are good as well , must be the dramatic nature of people pushing though it when it gets bad.   Not much happening at the mo  but here are some links http://vegasja.vegagerdin.is/vefmyndavelar/?xmin=240526&ymax=678578xmax=766625&ymin=304404  http://www2.liikennevirasto.fi/alk/english/kelikamerat/kelikamerat_5.html 

[manx_mick]

Anther steady gain in Snow and Ice

 

[manx_mick]

And for comparison to previous year

2013

 

 

2012

[bluearmy]

Anther steady gain in Snow and Ice

 

That's awesome gain this month. Cohen's SAI looks like it will get a good test this winter.

[damianslaw]

Interesting to see how the line almost follows the Russian border perfectly - good to see such a strong southern coverage. Key period is the next 2 weeks, will we continue to see a westward and southern advancement?

[summer blizzard]

And for comparison to previous year

2013

 

 

2012

 

2012 looks awsome south of 60N. That being said though ours looks more solid even if not as far south sporadically.

[Nouska]

And for comparison to previous year

2013

 

 

2012

 

There are several papers discussing lack of ice in the Barents, Kara and Laptev as being contributors to cold winter weather at lower latitudes - the side by side certainly highlights the infill of ice in that area during autumn 2013.

 

Laptev is ice free this year, a strong advance of the SAI and a negative trending OPI - a good test for several new areas of research.

[joggs]

Why is it that far east n south is a greater test to our winter more than northern scandinavian etc?

Even if no snow were recorded there but Scandinavia got buckets full in Oct,would we still get a scandinavian high in winter?

Is it not just alot of luck that we have a cold winter every now n again with us been situated next to the atlantic?.

[joggs]

I mean we can have alot of northerleys in a winter whilst many parts of e urope mild,and yes i can see what people say that europe needs to be cold for us to have a chance but why thousands of miles so far south n so far east?

Id of thougt better colder to north and east locale,and signs of neg ao and nao ect?

And i know theres more signs ect but jiving nxt to the atlantic,surely that has the biggest say on every winter?

Forgive me for sounding daft.

[bluearmy]

Why is it that far east n south is a greater test to our winter more than northern scandinavian etc?

Even if no snow were recorded there but Scandinavia got buckets full in Oct,would we still get a scandinavian high in winter?

Is it not just alot of luck that we have a cold winter every now n again with us been situated next to the atlantic?.

It's to do with the SAI (snow advance Index) and cohen's theories re Siberian high development and feedback loops which will weaken the strat vortex. I presume there must be somewhere on the forum where it's referenced in detail.

edit: ed has a simple flow chart on p1 of the strat thread which helps to explain.

Edited October 18, 2014 by bluearmy

[lorenzo]

Last few days have been explosive for coverage.

 

 

Saw a post on amwx tracking in a new trough that would add to the volume below, usually on these charts for what the UK may look like, good to connect the dots.., both SCE and SAI will get a solid test this month.

 

http://www.weatheronline.co.uk/cgi-bin/expertcharts?LANG=en&MENU=0000000000&CONT=noas&MODELL=gfs&MODELLTYP=1&BASE=200912201800&VAR=weas&HH=192&ZOOM=0&ARCHIV=0&RES=0&WMO=&PERIOD=

[summer blizzard]

SAI apparently already ~9 vs. climo of ~6.5! The complete Oct. SAI climo is 11. The odds are quite high that that will at least be met. The largest SAI for the entire Oct. was 1976's ~21. 2nd was 2009's ~16. 3rd was 2012's ~15.5. 4th was 1970's ~14.5. 5th was 2003's ~14.25. 6th was 1968's ~14.