http://www.oism.org/pproject/Slides/Presentation/Slide1.png早幾日看見瑞典的雪球報導也不覺甚麼，人做的也不出奇，今天又見英國有這些怪雪球就覺得怪怪地，以為是冬天的麥田圈，卻原來是自然怪現像，過去在地球偏遠冰凍地區先有，好彩氣候條約攪不成，仲話天氣變暖，我和Hokfai兄及madokaxx大大睇法一樣，地球進入緊冰河期就真！
A field full of hundreds of rare self-rolling snow balls in Yeovil Photo: Ron Trevett 伊奧維田上滿有數以百計的罕有自我滾動雪球 圖：Ron Trevett
英國發現罕見自我滾動巨型雪球
Rare self-rolling giant snow balls found in UK
They may look like winter's answer to crop circles, but these mysterious snow rolls are in fact a rare natural phenomenon usually found only in the world's most remote and frozen regions.
他們可能看起來像麥田圈的冬天答案，但這些神秘的雪卷其實是一種罕見的自然現象，通常只存在於世界上最偏遠和冰凍地區。
By Heidi Blake
Published: 9:45PM GMT 08 Jan 2010
Also known as snowrollers, snow bales and snow doughnuts, they form mostly in unusual conditions created by a precise combination of snow, ice, wind, temperature and moisture on the prairies of North America.
也被稱為雪滾軸，雪包，雪甜圈，他們最常是在北美大草原的不尋常條件下，由精確的雪、冰、風、溫度和濕度組合所創造。
But this week's frozen weather has allowed the snow cylinders to make a freak appearance in the UK.
但英國本週的冰凍天氣讓雪氣瓶去做出怪胎外貌。
Ron Trevett, 55, and his wife Aileen, 54, readers of The Daily Telegraph, were stunned when they stumbled across the mysterious formations as they walked their dogs in a field near their home in Yeovil, Somerset.
"We saw them from a distance on the ridge of the field, and we thought some kids had been playing up there and making giant snowballs," said Mr Trevett.
"But when we got up there we saw there were no footprints and there were hundreds of them – too many for children to have done it. We realised it must have been the wind."
Mr Trevett, a builder, said he and his wife felt privileged to have witnessed such a rare phenomenon. "We feel very lucky. I'm the wrong side of fifty and I've never seen anything like it in my life. We were gobsmacked to look at them there in the sunlight. It was a really impressive sight, and I took some pictures so other people could share it," he said.
Frank Barrow, a lecturer in meteorology at the Met Office, said the rolls can only form in a precise set of unusual conditions.
"They start off with nice thick layer of snow, with the top snow just on the point of melting either because of general temperature or sunshine on the surface," he said.
"The top snow layer becomes a bit sticky, and you then need a fairly strong wind. The sticky layer can be peeled off the colder and more powdery snow underneath by the wind forming a roll. In the first picture you can see some of the powdery stuff sticking to the lower outside surface of the roll. I suppose it is a natural version of making a snowman."
After being formed, the rolls eventually become too large and heavy for the wind to move, or are halted by rising ground or a tuft of vegetation.
They are often hollow because the weak inner layers which form first can easily be blown away, and the fragile formations can collapse in the slightest change of temperature or gust of wind.
Liz Bentley, of the Royal Meteorological Society, said despite their rarity in the UK, there is a chance of more snow rolls appearing over the next few days.
"These rolls are unusual here because we don't tend to have major snow events like the one we're experiencing now. They happen with the combination of lying snow and high wind speeds, mostly in North America and Northern Europe, and they can be as small as a tennis ball or they can be as large as two feet across – depending on how strong the wind is and how smooth the surface of the snow is," she said.
"There are quite strong winds predicted this weekend as well as more snow, so if people keep a look out they might see a few more of these appearing around the country over the next few days."
http://www.telegraph.co.uk/topics/weather/6950788/Snow-stories-rare-self-rolling-snow-balls-found-in-UK.html
神秘巨型冰球在瑞典海岸線上發現
Mysterious giant ice balls discovered on Swedish coastline
Published: 5 Jan 10 14:59 CET
Dictionary tool Double click on a word to get a translation
Bird watchers walking along the beach on the Baltic island of Öland off Sweden’s southeastern coast were puzzled by an unusual natural phenomenon recently when they stumbled across dozens of football-sized balls of ice lying on the shore.
觀鳥者沿着瑞典東南海邊對開的波羅的海厄蘭島上的海灘散号，最近被一個不尋常的自然現象令致困惑，當他們被幾十個在岸邊足球大小的冰球絆腳
Dalarna braces for record-low Siberian chill (5 Jan 10)
Icebreakers do battle with Swedish waters (4 Jan 10)
Thin ice spells double trouble for persistent Swedish motorist (4 Jan 10)
A week before Christmas, Magnus Bladh of the Ottenby bird station, located on Öland’s southern cape, was strolling along the beach with a colleague when he saw something he’d never seen before.
“Temperatures were below freezing and there was a light wind, but it was very cold! In the seaweed we noticed at least 200 large ice balls,” he said in a report to Swedish meteorological agency SMHI.
“The balls varied in size but the biggest ones were quite large, some larger than a football.”
What mystified Bladh was that the balls were resting on the west side of a bed of seaweed, even though the prevailing winds were from the east.
When Bladh and his colleagues later broke open one of the ice balls, they discovered that it consisted of a 2 to 5 centimetre thick shell of ice, which covered a core of soft, wet snow.
According to SMHI, the ice balls likely form when rolls of light snow are blown from the shore into water which is at or just below freezing, but fails to form uniform ice due to strong winds.
The rolls of snow are then tossed about in the chilly waters, where wave action eventually shapes them into balls of ice.
"It's hard to say just how common ice balls are, since we are reliant on witness reports," SMHI spokeswoman Alexandra Ohlsson told The Local.
A review by SMHI of weather conditions on southern Öland in the days leading up to Bladh’s ice ball discovery revealed that temperatures in the area were generally below freezing, with snowfall, and winds from the north and northeast averaging 50 kilometres per hour.
According to SMHI, it was possible that rolls of snow near the shore remained soft due to warmth emanating up from the ground, which could have then been blown into the water by the strong winds.
Once formed, the balls likely came back to shore and, rather than floating out to open water, remained there due to a change in sea conditions in the days before the ice balls were discovered. Water levels sank several decimetres between December 17th and December 18th when Bladh and his colleagues found the ice balls lying on the shore.
Beside's Bladh's discovery, SMHI's website only mentions two other reported instances of ice balls being discovered in Sweden since the 1950s.
Rare self-rolling giant snow balls found in UK
They may look like winter's answer to crop circles, but these mysterious snow rolls are in fact a rare natural phenomenon usually found only in the world's most remote and frozen regions.
他們可能看起來像麥田圈的冬天答案，但這些神秘的雪卷其實是一種罕見的自然現象，通常只存在於世界上最偏遠和冰凍地區。
By Heidi Blake
Published: 9:45PM GMT 08 Jan 2010
Also known as snowrollers, snow bales and snow doughnuts, they form mostly in unusual conditions created by a precise combination of snow, ice, wind, temperature and moisture on the prairies of North America.
也被稱為雪滾軸，雪包，雪甜圈，他們最常是在北美大草原的不尋常條件下，由精確的雪、冰、風、溫度和濕度組合所創造。
But this week's frozen weather has allowed the snow cylinders to make a freak appearance in the UK.
但英國本週的冰凍天氣讓雪氣瓶去做出怪胎外貌。
Ron Trevett, 55, and his wife Aileen, 54, readers of The Daily Telegraph, were stunned when they stumbled across the mysterious formations as they walked their dogs in a field near their home in Yeovil, Somerset.
"We saw them from a distance on the ridge of the field, and we thought some kids had been playing up there and making giant snowballs," said Mr Trevett.
"But when we got up there we saw there were no footprints and there were hundreds of them – too many for children to have done it. We realised it must have been the wind."
Mr Trevett, a builder, said he and his wife felt privileged to have witnessed such a rare phenomenon. "We feel very lucky. I'm the wrong side of fifty and I've never seen anything like it in my life. We were gobsmacked to look at them there in the sunlight. It was a really impressive sight, and I took some pictures so other people could share it," he said.
Frank Barrow, a lecturer in meteorology at the Met Office, said the rolls can only form in a precise set of unusual conditions.
"They start off with nice thick layer of snow, with the top snow just on the point of melting either because of general temperature or sunshine on the surface," he said.
"The top snow layer becomes a bit sticky, and you then need a fairly strong wind. The sticky layer can be peeled off the colder and more powdery snow underneath by the wind forming a roll. In the first picture you can see some of the powdery stuff sticking to the lower outside surface of the roll. I suppose it is a natural version of making a snowman."
After being formed, the rolls eventually become too large and heavy for the wind to move, or are halted by rising ground or a tuft of vegetation.
They are often hollow because the weak inner layers which form first can easily be blown away, and the fragile formations can collapse in the slightest change of temperature or gust of wind.
Liz Bentley, of the Royal Meteorological Society, said despite their rarity in the UK, there is a chance of more snow rolls appearing over the next few days.
"These rolls are unusual here because we don't tend to have major snow events like the one we're experiencing now. They happen with the combination of lying snow and high wind speeds, mostly in North America and Northern Europe, and they can be as small as a tennis ball or they can be as large as two feet across – depending on how strong the wind is and how smooth the surface of the snow is," she said.
"There are quite strong winds predicted this weekend as well as more snow, so if people keep a look out they might see a few more of these appearing around the country over the next few days."
http://www.telegraph.co.uk/topics/weather/6950788/Snow-stories-rare-self-rolling-snow-balls-found-in-UK.html
神秘巨型冰球在瑞典海岸線上發現
Mysterious giant ice balls discovered on Swedish coastline
Published: 5 Jan 10 14:59 CET
Dictionary tool Double click on a word to get a translation
Bird watchers walking along the beach on the Baltic island of Öland off Sweden’s southeastern coast were puzzled by an unusual natural phenomenon recently when they stumbled across dozens of football-sized balls of ice lying on the shore.
觀鳥者沿着瑞典東南海邊對開的波羅的海厄蘭島上的海灘散号，最近被一個不尋常的自然現象令致困惑，當他們被幾十個在岸邊足球大小的冰球絆腳
Dalarna braces for record-low Siberian chill (5 Jan 10)
Icebreakers do battle with Swedish waters (4 Jan 10)
Thin ice spells double trouble for persistent Swedish motorist (4 Jan 10)
A week before Christmas, Magnus Bladh of the Ottenby bird station, located on Öland’s southern cape, was strolling along the beach with a colleague when he saw something he’d never seen before.
“Temperatures were below freezing and there was a light wind, but it was very cold! In the seaweed we noticed at least 200 large ice balls,” he said in a report to Swedish meteorological agency SMHI.
“The balls varied in size but the biggest ones were quite large, some larger than a football.”
What mystified Bladh was that the balls were resting on the west side of a bed of seaweed, even though the prevailing winds were from the east.
When Bladh and his colleagues later broke open one of the ice balls, they discovered that it consisted of a 2 to 5 centimetre thick shell of ice, which covered a core of soft, wet snow.
According to SMHI, the ice balls likely form when rolls of light snow are blown from the shore into water which is at or just below freezing, but fails to form uniform ice due to strong winds.
The rolls of snow are then tossed about in the chilly waters, where wave action eventually shapes them into balls of ice.
"It's hard to say just how common ice balls are, since we are reliant on witness reports," SMHI spokeswoman Alexandra Ohlsson told The Local.
A review by SMHI of weather conditions on southern Öland in the days leading up to Bladh’s ice ball discovery revealed that temperatures in the area were generally below freezing, with snowfall, and winds from the north and northeast averaging 50 kilometres per hour.
According to SMHI, it was possible that rolls of snow near the shore remained soft due to warmth emanating up from the ground, which could have then been blown into the water by the strong winds.
Once formed, the balls likely came back to shore and, rather than floating out to open water, remained there due to a change in sea conditions in the days before the ice balls were discovered. Water levels sank several decimetres between December 17th and December 18th when Bladh and his colleagues found the ice balls lying on the shore.
Beside's Bladh's discovery, SMHI's website only mentions two other reported instances of ice balls being discovered in Sweden since the 1950s.
http://www.thelocal.se/24210/20100105/
Disc:
http://www5.uwants.com/viewthread.php?tid=9255619&page=1&extra=page%3D1#pid132801575
2 則留言:
我覺得地球無變暖，而係變得一年比一年凍
係香港呢D高樓包圍既熱係散熱問題
地球從來無生過病，而係生活係地球既人類生病
對，師兄！加多張過千年氣温升跌圖，見到自1961始氣温在上升中，近十年更甚，但全球平均加埋都不足2度；但長期看，小冰河期反彈完成，開始進入冰河期不足為奇LOL。
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