Watts Up With That?
Tue, 25 Apr 2017 20:56 UTC
From the University of Alaska Fairbanks, and the "at least they didn't blame climate change" department:
A research team led by the University of Alaska Fairbanks and Colorado College has solved a century-old mystery involving a famous red waterfall in Antarctica. New evidence links Blood Falls to a large source of salty water that may have been trapped under Taylor Glacier for more than 1 million years.
The team's study, published in the Journal of Glaciology, describes the brine's 300-foot path from beneath Taylor Glacier to the waterfall. This path has been a mystery since geoscientist Griffith Taylor discovered Blood Falls in 1911.
Lead author Jessica Badgeley, then an undergraduate student at Colorado College, worked with University of Alaska Fairbanks glaciologist Erin Pettit and her research team to understand this unique feature. They used a type of radar to detect the brine feeding Blood Falls.
"The salts in the brine made this discovery possible by amplifying contrast with the fresh glacier ice," Badgeley said. Blood Falls is famous for its sporadic releases of iron-rich salty water. The brine turns red when the iron contacts air.
Ice Age Now
Mon, 24 Apr 2017 15:03 UTC
"The crops had 2 weeks advance and the clear sky in the last days allowed these spring frosts. Main frost in Alsace on the early morning of 20th of april, and then on the 21st too. 5°C to 7 °C under zero on the 20th depending on the places.
Here are words from an article that Philippe sent.
Frost and negative (below-zero) temperatures have caused great damage in the vineyards of Alsace, France.Here's the article in French
"In many places, there are 95 to 100% loss of buds," says Gérard Schaffar, president of the Turckheim cellar in Haut-Rhin.
Strawberries - the fruit called "red gold" - are one of the most important agricultural products of İnegöl, a city in the Bursa Province in Turkey.Sezai Çelik said: "The great majority of the subalterns were damaged and it was not expected to be such a snowfall on April 23."
Farmers worry that after the snowfall may come freezing, which will cause even greater damage. With 190 thousand acres of fruit in the field, we do not want to even think about it, said Celik. Ali Soldildi, a strawberry farmer, said "there is a serious damage to the products because of the untimely falling snow on April 23." Thanks to Argiris Diamantis for this link.
"This must be the greenhouse effect," says Argiris. "Heavy snowfall causes the collapse of the greenhouses."
Tue, 25 Apr 2017 12:17 UTC
From Llanelli to Powys and Bala to Snowdonia , people woke up to a heavy coating of snow on Tuesday morning.
Snow was expected for parts of the country after the Met Office said on Monday that the UK is set to see a change to colder weather with chilly and frosty days.
snow in wales this morning! Its freeeeeezing!!pic.twitter.com/bqHJhiPtudThe icy weather has been brought in by an Arctic maritime airmass spreading southwards across the UK.
— Lou (@LouJenksy) April 25, 2017
Mon, 24 Apr 2017 12:08 UTC
On Sunday night and Monday morning, around 13 centimetres of snow fell on the city.
According to Environment Canada, a large ridge of arctic high pressure combined with a weather system from Montana to create the lower-than-usual temperatures.
"It was quite a significant snowfall for this time of year," said meteorologist Terri Lang.
I am so going to kick the groundhog's ass #yqr #wtf #snow
The snow covered many highways in the area, leading Highway Hotline to issue Travel Not Recommended advisories from Swift Current to Regina, and north to Davidson.
The snowstorm was also felt in other parts of the province. An area stretching from Prince Albert to Emma and Christopher Lakes received around 10 centimetres of snow.
Mon, 24 Apr 2017 11:58 UTC
Up to 25 centimetres of snow could cover parts of Manitoba, including Winnipeg, according to Environment Canada.
The late April snow isn't all that unusual for the region. Winnipeg saw about 22 centimetres of snow in May 2002 and 29 centimetres in May 2004. The white stuff was also seen falling around the city in May 2013, 2014 and 2015.
According to Gary Gerbrandt, owner of Dymamic Auto Services, the snowfall saw six customers cancel their appointments to have their snow tires removed at his auto shop. Manitoba Public Insurance requires studded snow tires to be removed by April 30.
"If you don't feel comfortable driving, just wait," Gerbrandt told CTV Winnipeg. "That's all, no set time."
Another Winnipeg driver, Lucy Pankiw, wasn't fazed by the snow with her all-season tires and drove out to get groceries despite the slushy roads and poor visibility.
Mon, 24 Apr 2017 11:45 UTC
People have been taking to Twitter to share their disbelief as the white stuff falls in April.
Amy Canning posted on Twitter: "It's forecast rain, hail and snow for this week. Only in Ireland would that happen and it almost summer."
The forecast for today was a fair 7C and was set to be windy and partly cloudy but it seems snow has hit Co Antrim.
Arctic weather will strike Ireland bringing in freezing temperatures as well as frost and even some snow overnight.
Monday will be a nice mild day for the most part before the cold moves in overnight and stays around for the next couple of days.
Mon, 24 Apr 2017 11:36 UTC
The far north of Scotland is the most affected, with temperatures in some areas of the Highlands possibly falling as low as -6C in the early hours of Tuesday.
While likely to thaw quickly, snow showers accompanied by a strong and gusty wind over the course of Monday could create blizzard-like conditions at higher levels.
Overnight into Tuesday, some areas could be hit by 2cm to 5cm of snow, while wintry showers will remain frequent and heavy in the Highlands throughout the day.
Mon, 24 Apr 2017 07:37 UTC
Tue, 25 Apr 2017 03:03 UTC
The researchers, who published in the journal Nature, found enormous amounts of meltwater in places where they didn't expect it, including a 400-foot-wide waterfall on the Nansen ice shelf.
Previously, meltwater was believed to have been confined to the northernmost reaches of Antarctica, the parts that are warming the fastest. The extensiveness of the ice melting could cause sea levels to raise much faster than previously projected, particularly as they increase the likelihood of chunks of the ice shelf breaking off entirely.
"This is not in the future - this is widespread now, and has been for decades," said lead author Jonathan Kingslake, a glaciologist at Columbia University's Lamont-Doherty Earth Observatory. "I think most polar scientists have considered water moving across the surface of Antarctica to be extremely rare. But we found a lot of it, over very large areas."
Comment: Scientists have also discovered a large crack on the Larsen C ice shelf and thousands of blue lakes of melt water have formed on the surface of Antarctica's glaciers over the past decade. Yet a recent study indicates that the Antarctic peninsula has actually been cooling not warming. See also:
Antarctica, is it melting or not? Man-made global warming can't explain this climate paradox