Snow And Ice In The Northern Hemisphere

[DR Hosking]

Maybe todays image will show the snow in Scotland and the Alps? Got plenty on the Lecht!

http://www.webcam-ski.com/webcams/interfaces/the-lecht/interface.php?pk_interface=279&m=images&r=panoramique#depart

[cyclonic happiness]

Today's picture shows the now extending along the northern coast of russia

check out ice compared to last year too!!

[WS Evolution]

Hope this works and helps people compare last year: 2009 V 2010.

Bright Green = Snow last year not this year

Gray = Snow this year not last year

Dark Yellow = Ice this year not last year

White = Snow both years.

Yellow = Ice both years

Edited October 20, 2010 by WS Evolution

[Strider]

Last years looks better - Iceland and Scandinavia have much more.

[WS Evolution]

Last years looks better - Iceland and Scandinavia have much more.

If I have worked this out correctly: [based on pixel count]

Last year had 3% higher snow cover at this stage:

gray = 5214

green = 5995

white = 17929

this year = 23143

last year = 23924

This year cover is 97% of last year.

Edited October 20, 2010 by WS Evolution

[Strider]

Yep sounds about right - and crucially, the loses are in the areas closest to us

[liltbrockie]

We have some catching up to do... and it doesnt look like its going to happen just yet.. next few days looks a bit dry in the needed areas.

[Guest Quantumsnow]

Hope this works and helps people compare last year: 2009 V 2010.

Bright Green = Snow last year not this year

Gray = Snow this year not last year

Dark Yellow = Ice this year not last year

White = Snow both years.

Yellow = Ice both years

Thanks for taking the time to do this. I attempted it a while back using a very old version of photoshop... and failed.

[WS Evolution]

Thanks for taking the time to do this. I attempted it a while back using a very old version of photoshop... and failed.

Used Fireworks 2004 -> used two layers, blend mode set to "color" for top layer (2010).

Used Photoshop CS4 for pixel count, using histogram window to show pixels, with magic wand (Tolerance 0, anti-alias OFF, Contiguous OFF and Sample All Layers OFF.) to select colours.

[liltbrockie]

Used Fireworks 2004 -> used two layers, blend mode set to "color" for top layer (2010).

Used Photoshop CS4 for pixel count, using histogram window to show pixels, with magic wand (Tolerance 0, anti-alias OFF, Contiguous OFF and Sample All Layers OFF.) to select colours.

A better way to do it would be to choose select -> colour range to do the white pixel count.

[cyclonic happiness]

Big gains all over the place, namely canada and alaska, scandi is catching up too.

[Ladyofthestorm]

Definitely cooler and snower over Siberia this year.

Less coolinga nd snow over Scandanvia.... hmmmm interesting Many thanks for doing that!

I wonder if we will beat the snow cover from last year?

[liltbrockie]

You'll like this one guys.... I have made a Javascript that displays the past 5 years snow cover from Autumn onwards in a grid side by side:

http://www.kitchenappliancesforum.co.uk/Script.html

You will need to zoom out until you can see FIVE maps side by side otherwise it wont make much sense.

[memories of 63]

Big gains all over the place, namely canada and alaska, scandi is catching up too.

Yppee, the first white pixels over the UK

[frozencanals]

Aha - nice to see some white appearing over Scotland so early, though not sure how long the pixels will remain on the map :-)

Cheers

FC

[WRCHowler]

Also the sea ice is really showing how strong it is now

[fear sneachta]

http://www.independent.ie/breaking-news/world-news/rising-arctic-temperatures-melt-ice-2390136.html

[Winter Warmer]

You'll like this one guys.... I have made a Javascript that displays the past 5 years snow cover from Autumn onwards in a grid side by side:

http://www.kitchenap....uk/Script.html

You will need to zoom out until you can see FIVE maps side by side otherwise it wont make much sense.

thanks for taking the time to do that liltbrockie.will it be updated everyday?

[cyclonic happiness]

today offering!

[liltbrockie]

thanks for taking the time to do that liltbrockie.will it be updated everyday?

Yeah of course... it updates dynamically...

I have added options to let you choose what YEAR to start from and What DAY to start from

Screenshot:

click here to visit the ice and snow checker!

(remember... you will have to zoom out depending on how many years back you go so that it fits on the screen in a nice row!)

Edited October 22, 2010 by liltbrockie

[Strider]

Central Europe (Alps) and Scandi still behind on last year...

[J10]

From Arctic Ice Thread.

The latest Sea Ice Extent figures are 7,428,594 km2, which is 271,295 below recent averages and 1,357,381 below longer term averages. Ice Growth this week was 95,000 which is above long term averages but below short term averages. Ice growth seems to be better than last year, but behind how it was in 2008, as was the trend on the previous update.

Ranking 6th of 8 (Recent) 30th of 32 (Long Term) (Above 2007 and 2009)

Arctic Ice Autumn 2010.xls

[cheeky_monkey]

expect to see some big gains across western canada early next week..forecast snow here in edmonton sunday until mid next week and remaining cold therafter

[cyclonic happiness]

The biggest change on tady's pic', is the HUGE snowfall over mongolia!

[beng]

The biggest change on tady's pic', is the HUGE snowfall over mongolia!

A good sign if you're looking for a strong siberian high this winter since this region I believe helps with ozone production later into the winter when there is deep snowcover.