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Author Topic: Northern Hemisphere Winter 2018-2019 Snowcover / Misc Obs  (Read 78228 times)

Tor Bejnar

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Re: Northern Hemisphere Winter 2018-2019 Snowcover / Misc Obs
« Reply #350 on: April 08, 2019, 04:07:19 PM »
NSIDC's Arctic Sea Ice News and Analysis of April 3 includes a discussion on Arctic Ocean snow cover and this graph. (Something like: less net snow cover due to late freeze, early thaw and changing weather patterns (but more snow in the CAB), with consequences for ice growth, etc.)
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gerontocrat

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Re: Northern Hemisphere Winter 2018-2019 Snowcover / Misc Obs
« Reply #351 on: April 11, 2019, 04:22:09 PM »
Another winter storm (Wesley) dumps more snow over the middle of North America, stopping and then reversing the decline in SWE (snow mass) to above +1SD. Meanwhile, warmth pushes North and East from the far west of North America, reducing SCE (snow cover towards -1SD.

The result looks like even worse flooding over the next few weeks, especially down the Missouri.

And warmth steadily moves North and East for the next week and more. My prediction that belongs to me is that by the 21st April just about all the snow cover south of 60 degrees in North America will be gone (apart from snow in the higher mountains), even though snow mass in the remainder may still be above average.
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gerontocrat

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Re: Northern Hemisphere Winter 2018-2019 Snowcover / Misc Obs
« Reply #352 on: April 13, 2019, 11:14:30 AM »
https://ccin.ca/ccw/snow/current Northern hemisphere snow as at 12th April

Eurasia SCE and SWE is well-behaved, still melting in accordance with the models (in itself unusual). i.e. steady decline with SCE at 1 SD below average and SWE 1 SD above average.

North America stays really interesting. Two storms affected North America over the next week, the second being a monster - Storm Wesley. This dumped loads of snow especially on the high plains (see first image). As a result SWE (snow mass) is now well above +1SD (standard deviation) for the time of year,  and SCE (snow cover extent) approaching +1 SD.  (2nd and third images)

However, Spring has sprung. The last image shows typical late afternoon temperatures in North America over the next 10 days. So, my little prediction that belongs to me is that apart from some snow in the high mountains, there will be no snow on the ground south of 60 degrees North in North America well before the end of the month.

The real legacy of the extreme snow fall in North America seems to me to be the floods expected to roll down the Mississippi / Missouri river basin over the next two months. Wesley can only have worsened that outlook.
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gerontocrat

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Re: Northern Hemisphere Winter 2018-2019 Snowcover / Misc Obs
« Reply #353 on: April 18, 2019, 01:28:33 PM »
https://ccin.ca/ccw/snow/current Northern hemisphere snow as at 17th April

A quick look at North America after the monster Storm Wesley. This dumped loads of snow especially on the high plains.  As a result SWE (snow mass) spiked well above +1SD (standard deviation) for the time of year,  and SCE (snow cover extent) approached+1 SD.

But all that snow is nearly gone. Spring sprang. SCE and SWE now in fast decline. The last image shows typical late afternoon temperatures in North America over the next 10 days.  With temperatures getting that warm snow will not survive. So, my little prediction that belongs to me is that apart from some snow remaining in the high mountains, there will be no snow on the ground south of 60 degrees North in North America well before the end of the month.

The real legacy of the extreme snow fall in North America still seems to me to be the floods expected to roll down the Mississippi / Missouri river basin over the next two months. Storm Wesley and the current rapid melt can only have worsened that outlook.
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gerontocrat

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Re: Northern Hemisphere Winter 2018-2019 Snowcover / Misc Obs
« Reply #354 on: April 20, 2019, 11:30:07 AM »
https://ccin.ca/ccw/snow/current North American Snow as at 19th April

Another look at North America after the monster Storm Wesley. This dumped loads of snow especially on the high plains.  But all that snow is nearly gone. Spring sprang. SCE and SWE now in fast decline, SWE down to +1 SD above average, extent down to 1 SD below average, in line with long-term model predictions for higher snow fall at higher latitudes and earlier melt at lower latitudes.

The last image shows typical late afternoon temperatures in North America over the next 10 days.  With temperatures getting that warm snow will not survive. So, my little prediction that belongs to me is that apart from the snow remaining in the mountains, there will be no snow on the ground south of 60 degrees North in North America well before the end of the month.

The real legacy of the extreme snow fall in North America still seems to me to be the floods expected to roll down the Mississippi / Missouri river basin over the next two months. Storm Wesley and the current rapid melt can only have worsened that outlook.
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gerontocrat

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Re: Northern Hemisphere Winter 2018-2019 Snowcover / Misc Obs
« Reply #355 on: April 20, 2019, 11:44:20 AM »
https://ccin.ca/ccw/snow/current Eurasian Snow as at 19th April

Eurasia was showing the textbook example of expected snow until a week ago, with both SCE and SWE in strong decline, SWE down to +1 SD above average, extent down to 1 SD below average, in line with long-term model predictions for higher snow fall at higher latitudes and earlier melt at lower latitudes. That good behaviour has stopped.

In the last week, SCE has increased, now at +1SD above average, and SWE decline has stalled, now at well over +1SD above average. I am not sure why, as temperatures and temperature anomalies do not seem to be colder than normal.
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Re: Northern Hemisphere Winter 2018-2019 Snowcover / Misc Obs
« Reply #356 on: April 20, 2019, 03:15:03 PM »
And here are Tealight's (aka NICO SUN)  maps and graph showing where snow is melting fast and where it is melting slow.

What struck me is

- that there appears to be more melting ahead of schedule than behind,
- that the temperature contrast between Eastern Canada and Western Canada / Alaska is very pronounced,
- that apart from earlier in N. America earlier in the season extent remained well within the +2 / -2 SD boundary.
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bbr2314

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Re: Northern Hemisphere Winter 2018-2019 Snowcover / Misc Obs
« Reply #357 on: April 25, 2019, 10:17:40 AM »
Chicago has a chance of seeing its largest post 4/25 snowstorm on record. I think the city will only see a little bit but the suburbs are now shown receiving up to 10" by the 00z modeling suite and the trend has been colder. That this is preceding the Arctic heat wave is no coincidence IMO, as the Arctic is spilling its guts into the mid-latitudes.


bbr2314

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Re: Northern Hemisphere Winter 2018-2019 Snowcover / Misc Obs
« Reply #358 on: April 26, 2019, 08:31:25 AM »
The new EURO shows 6" down into Chicago proper with 8" or so at O'Hare, which would absolutely smash the all-time late season (4/25+) record.

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Re: Northern Hemisphere Winter 2018-2019 Snowcover / Misc Obs
« Reply #359 on: April 26, 2019, 01:10:38 PM »
At the moment, the snow line heads north in North America
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Klondike Kat

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Re: Northern Hemisphere Winter 2018-2019 Snowcover / Misc Obs
« Reply #360 on: April 26, 2019, 05:35:35 PM »
That may change over the weekend.  More snow on the way.

gerontocrat

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Re: Northern Hemisphere Winter 2018-2019 Snowcover / Misc Obs
« Reply #361 on: April 26, 2019, 06:33:42 PM »
That may change over the weekend.  More snow on the way.
1. There will be snow.
2. There will be rain.
3. There will be warmth.

I am betting that overall 2+3 > 1
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bbr2314

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Re: Northern Hemisphere Winter 2018-2019 Snowcover / Misc Obs
« Reply #362 on: April 27, 2019, 03:52:45 AM »
Of course the warmth will win out, but the impending event for Chicago appears to have truly historic potential. Winter storm watches are now out for 4-8", which would smash existing late-season snowfall records. This is a VERY anomalous event.

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Re: Northern Hemisphere Winter 2018-2019 Snowcover / Misc Obs
« Reply #363 on: April 27, 2019, 01:30:51 PM »
Can't it be problematic,over there,when extreme cold/dry air masses run into warm/humid air masses?

Not talking precipitation events either!
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Re: Northern Hemisphere Winter 2018-2019 Snowcover / Misc Obs
« Reply #364 on: April 27, 2019, 10:21:10 PM »
It is a little after 3 p.m. in Chicago. Began snowing at 11:00 a.m. this morning, periodically heavy. Temps are hovering right at 36F and this is what you get.

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Re: Northern Hemisphere Winter 2018-2019 Snowcover / Misc Obs
« Reply #365 on: April 28, 2019, 05:48:42 PM »
Chicago recorded 2 inches of snow from the storm. I live 6 miles from Ohare and this is a photo from my balcony...a beautiful spring morning.

gerontocrat

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Re: Northern Hemisphere Winter 2018-2019 Snowcover / Misc Obs
« Reply #366 on: April 28, 2019, 05:58:07 PM »
There was a dump of snow yesterday that is still there (briefly)- but just north of the Great Lakes. Being in Canada, unlikely to be noticed by the US media.
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gerontocrat

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Re: Northern Hemisphere Winter 2018-2019 Snowcover / Misc Obs
« Reply #367 on: May 01, 2019, 10:49:13 AM »
https://ccin.ca/ccw/snow/current Eurasian Snow as at 30th April

All my predictions failed as snow loss became below average in both Eurasia and North America.
I will blame warmth in higher latitudes, as it is impossible that it was simply because I was WRONG.
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gerontocrat

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Re: Northern Hemisphere Winter 2018-2019 Snowcover / Misc Obs
« Reply #368 on: May 01, 2019, 11:00:52 AM »
And here is a GIF of recent snow in North America.

Needs a click to start and plays 6 times.
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Tor Bejnar

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Re: Northern Hemisphere Winter 2018-2019 Snowcover / Misc Obs
« Reply #369 on: May 07, 2019, 09:41:58 PM »
I looked at a map of northern Quebec and found a non-coastal location, Fort-Mackenzie, and looked up its weather forecast.  Rather wet to support a deepening snow cover.  There is plenty of snow on the ground, however, per this ECMWF/Global Euro model (60-80 inches is 150 to 200 mm).  Further north in Kangiqsujuaq, snow loss will be minimal
« Last Edit: May 07, 2019, 09:48:13 PM by Tor Bejnar »
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gerontocrat

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Re: Northern Hemisphere Winter 2018-2019 Snowcover / Misc Obs
« Reply #370 on: May 08, 2019, 06:48:42 PM »
https://ccin.ca/ccw/snow/current as at 7th May

All my predictions for April failed as snow loss became below average or even rose in both Eurasia and North America. I will blame warmth in higher latitudes, as it is impossible that it was simply because I was WRONG.

But now the blip seems to be over, and down comes SCE and SWE. Mostly +ve temperature anomalies at high latitudes in both North America and Eurasia should encourage further strong snow melt (even in the Northern part of Quebec Province)
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Niall Dollard

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Re: Northern Hemisphere Winter 2018-2019 Snowcover / Misc Obs
« Reply #371 on: May 08, 2019, 08:53:32 PM »
Rutgers NH Snow cover extent for April was 29.06 million km2.

A negative anomaly of -1.16. (second negative month this spring).

Areas Below : Rockies, Canadian Plains and a ring running from Euro Russia across the Steppes to northern China.

Areas Above: Ontario, northern USA Plains and another ring across Asia (north of the aforementioned ring earlier).

gerontocrat

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Re: Northern Hemisphere Winter 2018-2019 Snowcover / Misc Obs
« Reply #372 on: May 09, 2019, 10:20:08 PM »
An encouragement to snow melt at very high latitudes?
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Re: Northern Hemisphere Winter 2018-2019 Snowcover / Misc Obs
« Reply #373 on: May 13, 2019, 11:02:10 AM »
The North wind won't blow,
And we won't have snow,
And what will poor Robin do then, poor thing?
His head from under his wing he'll bring,
And he'll sing, 'tis Spring, 'tis Spring!
"Para a Causa do Povo a Luta Continua!"
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gerontocrat

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Re: Northern Hemisphere Winter 2018-2019 Snowcover / Misc Obs
« Reply #374 on: May 17, 2019, 11:21:32 AM »
https://ccin.ca/ccw/snow/current as at 16th May

North America SCE and SWE now both within the +1 SD band again.

Eurasia a little bit above the +1 SD band. But as far as SWE is concerned, most of the anomaly looks like snow in the Himalayas and Tibet.

The warm afternoons and rapidly increasing insolation are killing off the snow.
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gerontocrat

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Re: Northern Hemisphere Winter 2018-2019 Snowcover / Misc Obs
« Reply #375 on: May 18, 2019, 10:04:29 AM »
Those warm afternoons in North America.....
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gerontocrat

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Re: Northern Hemisphere Winter 2018-2019 Snowcover / Misc Obs
« Reply #376 on: May 23, 2019, 01:09:08 PM »
https://ccin.ca/ccw/snow/current as at 16th May

North America SCE and SWE staying within the +1 SD band. Despite the massive snow mass maximum, the only real effect seems to be the impact on the Spring / early summer floods down the Mississippi catchment (that drains half of the USA).

Eurasia a little bit above the +1 SD band. But as far as SWE is concerned, most of the anomaly looks like snow in the Himalayas and Tibet.

The warm afternoons and rapidly increasing insolation are killing off the snow as normal.
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be cause

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Re: Northern Hemisphere Winter 2018-2019 Snowcover / Misc Obs
« Reply #377 on: May 23, 2019, 01:18:37 PM »
has the new ice age we were expecting in Quebec been avoided again ? b.c.

 ps .. looks like snow in Scotland is a possibility in a week's time ..
2007 + 5 = 2012 + 4 = 2016 + 3 = 2019 ...

bbr2314

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Re: Northern Hemisphere Winter 2018-2019 Snowcover / Misc Obs
« Reply #378 on: May 23, 2019, 03:50:25 PM »
has the new ice age we were expecting in Quebec been avoided again ? b.c.

 ps .. looks like snow in Scotland is a possibility in a week's time ..
Technically it wasn't avoided last year, as snow remained extant on the Torngat Mountains through summer. If it continues this year, I would say that (potentially?) legitimately constitutes the commencement of re-glaciation.

be cause

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Re: Northern Hemisphere Winter 2018-2019 Snowcover / Misc Obs
« Reply #379 on: May 23, 2019, 04:30:19 PM »
 bbr .. when the snow is advancing out of corries I will agree with you .. and come visit .. :) b.c.
2007 + 5 = 2012 + 4 = 2016 + 3 = 2019 ...

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Re: Northern Hemisphere Winter 2018-2019 Snowcover / Misc Obs
« Reply #380 on: May 23, 2019, 05:17:16 PM »
I would be very surprised if any snow in Quebec/Labrador survived this summer.  There are already bare patches on Baffin Island, and most of Quebec is snow-free already.  Rutgers global snow lab confirms that northern Quebec is actually melting ahead of schedule this year.  Last year's exceptionally late melt there looks like a fluke. 

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Re: Northern Hemisphere Winter 2018-2019 Snowcover / Misc Obs
« Reply #381 on: May 23, 2019, 07:40:54 PM »
It's not looking very good for the re-glaciation. They already predict temperatures of 10 degree C near the Hudson Bay, even north of it. And it's not even June. Maybe it's a special year. Sunspots are at zero, and lets assume that has a little effect. Would it be possible that when something changes at that buring bol of gas, that keeps us all alive. That it would not have an effect on this planet ? So lets assume it does. Than somewhere now the surface from from which the ocean is relasing some of it's heat, is at it's maximum. Could that be a problem for bbr's theory.

bbr2314

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Re: Northern Hemisphere Winter 2018-2019 Snowcover / Misc Obs
« Reply #382 on: May 23, 2019, 08:06:43 PM »
I would be very surprised if any snow in Quebec/Labrador survived this summer.  There are already bare patches on Baffin Island, and most of Quebec is snow-free already.  Rutgers global snow lab confirms that northern Quebec is actually melting ahead of schedule this year.  Last year's exceptionally late melt there looks like a fluke.
I think the Torngat Mountains may see some survive, but elsewhere, you are most definitely correct. However, there is still substantial + coverage anomalies over elevated parts of Quebec, even though northern bits are now deficient. Elevation is key.



I would also take D3+ forecasts for the region with a grain of salt, the models have been consistently too warm so far. Does that mean the snow in southern / central Quebec isn't going to melt? No, it will most definitely (99.999%) melt. But, I think there's still a good chance we repeat last year's situation in the high coastal mountains.

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Re: Northern Hemisphere Winter 2018-2019 Snowcover / Misc Obs
« Reply #383 on: May 23, 2019, 08:12:05 PM »
ECMWF model for today. Quite a contract from May 7.
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Re: Northern Hemisphere Winter 2018-2019 Snowcover / Misc Obs
« Reply #384 on: May 24, 2019, 12:05:50 AM »
has the new ice age we were expecting in Quebec been avoided again ? b.c.

 ps .. looks like snow in Scotland is a possibility in a week's time ..
Technically it wasn't avoided last year, as snow remained extant on the Torngat Mountains through summer. If it continues this year, I would say that (potentially?) legitimately constitutes the commencement of re-glaciation.

So that would be, I guess, a mini mini ice age?

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Re: Northern Hemisphere Winter 2018-2019 Snowcover / Misc Obs
« Reply #385 on: May 24, 2019, 01:30:09 AM »
 .. I once kept a snow ball in a freezer .. I guess that qualifies too  ? :) b.c.
2007 + 5 = 2012 + 4 = 2016 + 3 = 2019 ...

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Re: Northern Hemisphere Winter 2018-2019 Snowcover / Misc Obs
« Reply #386 on: May 24, 2019, 07:29:05 PM »
Hmmmm....

Maybe the Torngat Mountains will need more than a couple of seasons of snow surviving before we can declare a reglaciation in progress.

https://www.cbc.ca/news/canada/newfoundland-labrador/torngat-mountains-glaciers-shrinking-faster-says-researcher-1.3181492

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Re: Northern Hemisphere Winter 2018-2019 Snowcover / Misc Obs
« Reply #387 on: May 24, 2019, 09:44:02 PM »
Hmmmm....

Maybe the Torngat Mountains will need more than a couple of seasons of snow surviving before we can declare a reglaciation in progress.

https://www.cbc.ca/news/canada/newfoundland-labrador/torngat-mountains-glaciers-shrinking-faster-says-researcher-1.3181492

I highly doubt that study incorporates substantial data since 2012. If you were looking through that point, you would be correct. But temperatures last year were substantially below normal, and they have been falling since 2012 in general in northern Quebec.

I am not saying the study is wrong re: what it explicitly covers -- if it had quantified the years over which it purports to measure, I am sure it is probably correct (since I highly doubt it includes the past few years). But my entire argument has been that we have passed a tipping point to where the changes are now beneficial for snowcover retention.

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Re: Northern Hemisphere Winter 2018-2019 Snowcover / Misc Obs
« Reply #388 on: May 25, 2019, 02:05:11 PM »
Hmmmm....

Maybe the Torngat Mountains will need more than a couple of seasons of snow surviving before we can declare a reglaciation in progress.

https://www.cbc.ca/news/canada/newfoundland-labrador/torngat-mountains-glaciers-shrinking-faster-says-researcher-1.3181492

I highly doubt that study incorporates substantial data since 2012. If you were looking through that point, you would be correct. But temperatures last year were substantially below normal, and they have been falling since 2012 in general in northern Quebec.

I am not saying the study is wrong re: what it explicitly covers -- if it had quantified the years over which it purports to measure, I am sure it is probably correct (since I highly doubt it includes the past few years). But my entire argument has been that we have passed a tipping point to where the changes are now beneficial for snowcover retention.

Recent research can fairly precisely quantify that the glaciers in the Torngat Mountains have shrunk significantly from 1950 to 2005.

https://www.the-cryosphere.net/11/157/2017/

The trend suggests that these glaciers will eventually disappear due to rising temperatures. It is silly to state that having snow persist for a single season is evidence of an impending reglaciation.


"Technically it wasn't avoided last year, as snow remained extant on the Torngat Mountains through summer. If it continues this year, I would say that (potentially?) legitimately constitutes the commencement of re-glaciation."


What is most frustrating for me is that the subject of this thread which addresses NH snow cover is very relevant. Given the changes in climate and the hydrologic cycle, we should expect to see significant changes in snow cover and patterns as the earth warms. Tracking and analyzing snow cover could provide us with ideas as to what we can expect in the future. It is unfortunate that the thread is used only to amplify your pet theory of the impending reglaciation of the NH.
« Last Edit: May 25, 2019, 02:30:10 PM by Shared Humanity »

Shared Humanity

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Re: Northern Hemisphere Winter 2018-2019 Snowcover / Misc Obs
« Reply #389 on: May 25, 2019, 02:14:41 PM »
A question I wish was being explored on this thread...

The high Arctic is classified as a desert based on precipitation.

http://www.enviropedia.org.uk/Climate/Rainfall_Patterns.php

As the northern latitudes warm with the resulting increase in precipitable moisture, what impact does increased snowfall have on the permafrost and sea ice? This question is even more pressing, given the dramatic increase of warm air intrusions into the Arctic.

I am sure persons on this site with far more knowledge than me could provide even more intriguing questions to explore on this thread.
« Last Edit: May 25, 2019, 02:27:13 PM by Shared Humanity »

Klondike Kat

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Re: Northern Hemisphere Winter 2018-2019 Snowcover / Misc Obs
« Reply #390 on: May 25, 2019, 03:23:06 PM »
A question I wish was being explored on this thread...

The high Arctic is classified as a desert based on precipitation.

http://www.enviropedia.org.uk/Climate/Rainfall_Patterns.php

As the northern latitudes warm with the resulting increase in precipitable moisture, what impact does increased snowfall have on the permafrost and sea ice? This question is even more pressing, given the dramatic increase of warm air intrusions into the Arctic.

I am sure persons on this site with far more knowledge than me could provide even more intriguing questions to explore on this thread.

SH,
Perhaps this will help:

https://tos.org/oceanography/article/increased-arctic-precipitation-slows-down-sea-ice-melt-and-surface-warming

Increased precipitation (both rain and snowfall) are expected to becomes a large, negative feedback on Arctic temperatures and sea ice.

bbr2314

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Re: Northern Hemisphere Winter 2018-2019 Snowcover / Misc Obs
« Reply #391 on: May 25, 2019, 05:14:06 PM »
Hmmmm....

Maybe the Torngat Mountains will need more than a couple of seasons of snow surviving before we can declare a reglaciation in progress.

https://www.cbc.ca/news/canada/newfoundland-labrador/torngat-mountains-glaciers-shrinking-faster-says-researcher-1.3181492

I highly doubt that study incorporates substantial data since 2012. If you were looking through that point, you would be correct. But temperatures last year were substantially below normal, and they have been falling since 2012 in general in northern Quebec.

I am not saying the study is wrong re: what it explicitly covers -- if it had quantified the years over which it purports to measure, I am sure it is probably correct (since I highly doubt it includes the past few years). But my entire argument has been that we have passed a tipping point to where the changes are now beneficial for snowcover retention.

Recent research can fairly precisely quantify that the glaciers in the Torngat Mountains have shrunk significantly from 1950 to 2005.

https://www.the-cryosphere.net/11/157/2017/

The trend suggests that these glaciers will eventually disappear due to rising temperatures. It is silly to state that having snow persist for a single season is evidence of an impending reglaciation.


"Technically it wasn't avoided last year, as snow remained extant on the Torngat Mountains through summer. If it continues this year, I would say that (potentially?) legitimately constitutes the commencement of re-glaciation."


What is most frustrating for me is that the subject of this thread which addresses NH snow cover is very relevant. Given the changes in climate and the hydrologic cycle, we should expect to see significant changes in snow cover and patterns as the earth warms. Tracking and analyzing snow cover could provide us with ideas as to what we can expect in the future. It is unfortunate that the thread is used only to amplify your pet theory of the impending reglaciation of the NH.
You literally proved my point. The study ended in 2005. The change has been occurring since 2012.

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Re: Northern Hemisphere Winter 2018-2019 Snowcover / Misc Obs
« Reply #392 on: May 25, 2019, 05:22:14 PM »
bbr .. no way was your point re glaciation proven .. technically it was avoided last year .. unless you can provide evidence that snow accrued so that glaciers started to grow ; or new ice started to leave new or old corries as the mass of accumulated snow created new mobile ice .. b.c.
2007 + 5 = 2012 + 4 = 2016 + 3 = 2019 ...

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Re: Northern Hemisphere Winter 2018-2019 Snowcover / Misc Obs
« Reply #393 on: May 25, 2019, 05:27:43 PM »
bbr .. no way was your point re glaciation proven .. technically it was avoided last year .. unless you can provide evidence that snow accrued so that glaciers started to grow ; or new ice started to leave new or old corries as the mass of accumulated snow created new mobile ice .. b.c.
...my point was that the studies did not take into account post 2012 data. Did you bother reading my posts? The illiteracy is strong in this thread, SH keeps posting non sequitur after non sequitur when the entire point of my thesis has been that 2012 was a phase shift / flipping point and since then we have been descending into a new climactic state. Data pre-2012 would not cover this and the trend only became substantially significant in 2017-2018-2019.

The rhetoric from SH et al is similar to the deniers who would say that, without a BOE, the Arctic is fine and dandy. Similarly stupid. By the time BOE or widespread reglaciation occur, sh*t will hit the fan so substantially that we may no longer even be able to discuss these issues as a community due to worsening global events and failure of the internet (or censorship).

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Re: Northern Hemisphere Winter 2018-2019 Snowcover / Misc Obs
« Reply #394 on: May 25, 2019, 06:16:48 PM »
Hmmmm....

I post a comment with a link to research on the shrinking of glaciers in the Torngat Mountains and you accuse me of rhetoric.

Carry on. I'll periodically visit this thread with additional items to be discussed regarding NH snow in an effort to make this thread useful.

bbr2314... I would like to compliment you on your recent restraint in posting comments on other threads about the threat presented by the rapidly approaching ice age.

bbr2314

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Re: Northern Hemisphere Winter 2018-2019 Snowcover / Misc Obs
« Reply #395 on: May 25, 2019, 06:21:48 PM »
Hmmmm....

I post a comment with a link to research on the shrinking of glaciers in the Torngat Mountains and you accuse me of rhetoric.

Carry on. I'll periodically visit this thread with additional items to be discussed regarding NH snow in an effort to make this thread useful.

bbr2314... I would like to compliment you on your recent restraint in posting comments on other threads about the threat presented by the rapidly approaching ice age.
Thank you! And my rhetoric comment is meant re: repeating the studies that only go through pre-2012 data.  :)

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Re: Northern Hemisphere Winter 2018-2019 Snowcover / Misc Obs
« Reply #396 on: May 25, 2019, 06:23:10 PM »
A question I wish was being explored on this thread...

The high Arctic is classified as a desert based on precipitation.

http://www.enviropedia.org.uk/Climate/Rainfall_Patterns.php

As the northern latitudes warm with the resulting increase in precipitable moisture, what impact does increased snowfall have on the permafrost and sea ice? This question is even more pressing, given the dramatic increase of warm air intrusions into the Arctic.

I am sure persons on this site with far more knowledge than me could provide even more intriguing questions to explore on this thread.

SH,
Perhaps this will help:

https://tos.org/oceanography/article/increased-arctic-precipitation-slows-down-sea-ice-melt-and-surface-warming

Increased precipitation (both rain and snowfall) are expected to becomes a large, negative feedback on Arctic temperatures and sea ice.

There is a growing body of research that shows that increased snowfall in the high latitudes is accelerating the degradation of permafrost due to the insulating properties of snow as just a foot of snow is required to insulate the ground from the brutal cold temperatures.

https://www.nationalgeographic.com/environment/2018/08/news-arctic-permafrost-may-thaw-faster-than-expected/

This is just an article. I will search for some relevant research on the topic.

bbr2314

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Re: Northern Hemisphere Winter 2018-2019 Snowcover / Misc Obs
« Reply #397 on: May 25, 2019, 06:30:41 PM »
A question I wish was being explored on this thread...

The high Arctic is classified as a desert based on precipitation.

http://www.enviropedia.org.uk/Climate/Rainfall_Patterns.php

As the northern latitudes warm with the resulting increase in precipitable moisture, what impact does increased snowfall have on the permafrost and sea ice? This question is even more pressing, given the dramatic increase of warm air intrusions into the Arctic.

I am sure persons on this site with far more knowledge than me could provide even more intriguing questions to explore on this thread.

SH,
Perhaps this will help:

https://tos.org/oceanography/article/increased-arctic-precipitation-slows-down-sea-ice-melt-and-surface-warming

Increased precipitation (both rain and snowfall) are expected to becomes a large, negative feedback on Arctic temperatures and sea ice.

There is a growing body of research that shows that increased snowfall in the high latitudes is accelerating the degradation of permafrost due to the insulating properties of snow as just a foot of snow is required to insulate the ground from the brutal cold temperatures.

https://www.nationalgeographic.com/environment/2018/08/news-arctic-permafrost-may-thaw-faster-than-expected/

This is just an article. I will search for some relevant research on the topic.
I think it is interesting to see all the fires in Canada this year, which IMO, appear unprecedented. Besides the impact on permafrost, more snow earlier / later in the year cannot be good for maintaining vegetation, perhaps explaining why we are seeing more fires (more die-off combined with hotter temperatures = fuel).

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Re: Northern Hemisphere Winter 2018-2019 Snowcover / Misc Obs
« Reply #398 on: May 25, 2019, 07:27:35 PM »
How about you guys only quoting the parts of comments that you're going to reply to, instead of the whole comment with other embedded quotes?
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Re: Northern Hemisphere Winter 2018-2019 Snowcover / Misc Obs
« Reply #399 on: May 25, 2019, 07:55:36 PM »
How about you guys only quoting the parts of comments that you're going to reply to, instead of the whole comment with other embedded quotes?

Yes, please! That would make reading the forum soooo much easier!