SlideShare ist ein Scribd-Unternehmen logo
1 von 46
There is no meteorological term for this
natural phenomenon which happens when
         large amounts of snow fall
        around large lakes or oceans.
With the movement of the waves, the snow
   becomes ice and is transformed into
                 “ice-balls”
Hundreds and thousands of ice-balls with
 a centre of snow, the size of a football
  gather along the beaches to give this
wonderful spectacle. This happens when
   the water temperature is at 0°. Its a
 phenomenon known as "Lolly " by the
 fishermen of the Cap Breton island of
              Nova Scotia.
According to the Swedish meteorological
agancy, SMHI, this rare phenomenon when the
  soft snow accumulates and is rolled over and
        over by the wind on the beaches.
 Its the same processus as when the erosion of
      stoned transforms them into pebbles.
Ice-balls on Lake Michigan, USA.
Snow rolls
This other meteorological phenomenon which forms
rolls of snow, also called ’snowrollers’, is also quite
                         rare.
This happens when the wind winds layers of snow,
  one on top of the other. Due to the combined
temperature, humidity, speed of the wind and the
      slope of the ground, rolls are formed
A surface of ice or ground covered in snow
        enables the rolls to form.

 If the surface is made of ice, this ice must
also be covered by a layer of “loose snow” of
about 2cm and a temperature very near the
             ice’s melting point.
-Air temperature must be constant
           between 0° and 1°

- The wind must be strong enough to mobe
  the rolls of snow, but not too strong, so
 that it breaks them up so it must blow at
          approximately 40 Km/h.
-A gust of wind lifts some snow, like a spoon would
 with some iced cream. Repetition of these gusts of
 wind enables the « roll » to move forward and to
           collect more snow each time.
The size of the rolls can be of several
             centimeters.
Some have even been seen up to 70cm.
When the « roll » is too heavy to be moved
   by the wind or if it comes upon an
 obstacle, it stops, leaving behind it the
         imprint of its journey.
There is often a hole, in the very centre,
because the layers are thinner than those on
the outside and so they melt easily leaving a
         shape like a « Doughnut ».
These snow balls can also be formed by the action
of gravity itself; like when snow falls from a tree or a
  cliff and lands on a slope, it can start rolling and
                        form a ball.
     In this way « rolls » can form in hilly areas.
Translated by
Karen Burns

Weitere ähnliche Inhalte

Was ist angesagt?

Precipitation. by engr. ghulam yasin taunsvi
Precipitation. by engr. ghulam yasin taunsviPrecipitation. by engr. ghulam yasin taunsvi
Precipitation. by engr. ghulam yasin taunsviShan Khan
 
Precipitation Types
Precipitation TypesPrecipitation Types
Precipitation Typesdwinter1
 
Kinds of precipitation
Kinds of precipitationKinds of precipitation
Kinds of precipitationReem Bakr
 
Types of Precipitation
Types of PrecipitationTypes of Precipitation
Types of Precipitationatyler29
 
The Bergeron Process
The Bergeron ProcessThe Bergeron Process
The Bergeron ProcessJean_Diaz
 
How does earth changes
How does earth changesHow does earth changes
How does earth changesaya alshaer
 
desert presentation
desert presentation desert presentation
desert presentation zain sayed
 
Water in the Atmosphere and Evaporation
Water in the Atmosphere and EvaporationWater in the Atmosphere and Evaporation
Water in the Atmosphere and Evaporationdwinter1
 

Was ist angesagt? (15)

Basal Slippage
Basal SlippageBasal Slippage
Basal Slippage
 
Precipitation. by engr. ghulam yasin taunsvi
Precipitation. by engr. ghulam yasin taunsviPrecipitation. by engr. ghulam yasin taunsvi
Precipitation. by engr. ghulam yasin taunsvi
 
Presentation1
Presentation1Presentation1
Presentation1
 
Powerpoint
PowerpointPowerpoint
Powerpoint
 
Precipitation Types
Precipitation TypesPrecipitation Types
Precipitation Types
 
Kinds of precipitation
Kinds of precipitationKinds of precipitation
Kinds of precipitation
 
Types of Precipitation
Types of PrecipitationTypes of Precipitation
Types of Precipitation
 
The water cycle (science)
The water cycle (science)The water cycle (science)
The water cycle (science)
 
The Bergeron Process
The Bergeron ProcessThe Bergeron Process
The Bergeron Process
 
VOLCANOES
VOLCANOESVOLCANOES
VOLCANOES
 
How does earth changes
How does earth changesHow does earth changes
How does earth changes
 
Water cycle blog
Water cycle blogWater cycle blog
Water cycle blog
 
desert presentation
desert presentation desert presentation
desert presentation
 
Precipitation powerpoint
Precipitation powerpointPrecipitation powerpoint
Precipitation powerpoint
 
Water in the Atmosphere and Evaporation
Water in the Atmosphere and EvaporationWater in the Atmosphere and Evaporation
Water in the Atmosphere and Evaporation
 

Andere mochten auch

Andere mochten auch (19)

Million bottletemple
Million bottletempleMillion bottletemple
Million bottletemple
 
Pps hollywood dorado_bea
Pps hollywood dorado_beaPps hollywood dorado_bea
Pps hollywood dorado_bea
 
Rondje zaandam
Rondje zaandamRondje zaandam
Rondje zaandam
 
Photos uniques
Photos uniquesPhotos uniques
Photos uniques
 
Vietnam war
Vietnam warVietnam war
Vietnam war
 
Parisageniussaysgoodbye
ParisageniussaysgoodbyeParisageniussaysgoodbye
Parisageniussaysgoodbye
 
Civil warpictures1
Civil warpictures1Civil warpictures1
Civil warpictures1
 
Uyuni+salt+lake+(rev)
Uyuni+salt+lake+(rev)Uyuni+salt+lake+(rev)
Uyuni+salt+lake+(rev)
 
Wake indianwarrior
Wake indianwarriorWake indianwarrior
Wake indianwarrior
 
Max great picturesoftheworld
Max great picturesoftheworldMax great picturesoftheworld
Max great picturesoftheworld
 
Recall to active_duty
Recall to active_dutyRecall to active_duty
Recall to active_duty
 
Photos picsfrom1950 1960
Photos picsfrom1950 1960Photos picsfrom1950 1960
Photos picsfrom1950 1960
 
Alaska
AlaskaAlaska
Alaska
 
Excellentanimalshots
ExcellentanimalshotsExcellentanimalshots
Excellentanimalshots
 
Spring 110203125837-phpapp01
Spring 110203125837-phpapp01Spring 110203125837-phpapp01
Spring 110203125837-phpapp01
 
(Beijing shanghai high-speed-rail)
(Beijing shanghai high-speed-rail)(Beijing shanghai high-speed-rail)
(Beijing shanghai high-speed-rail)
 
Usa guam
Usa guamUsa guam
Usa guam
 
36934 campaign for-god
36934 campaign for-god36934 campaign for-god
36934 campaign for-god
 
Tibet
TibetTibet
Tibet
 

Ähnlich wie Snowballs

Winter ecology notes frost, snow, and ice
Winter ecology notes frost, snow, and iceWinter ecology notes frost, snow, and ice
Winter ecology notes frost, snow, and icemikelink45
 
Glaciers, Polar Ice and Global Warming
Glaciers, Polar Ice and Global Warming Glaciers, Polar Ice and Global Warming
Glaciers, Polar Ice and Global Warming shruti_mistry
 
Physical Processes
Physical ProcessesPhysical Processes
Physical ProcessesTonyCassidy
 
What is a glacier
What is a glacier What is a glacier
What is a glacier shahidusman3
 
Winter ecology notes climate
Winter ecology notes climateWinter ecology notes climate
Winter ecology notes climatemikelink45
 
Melting Of Glaciers By Smita & Shruti
Melting Of Glaciers By Smita & ShrutiMelting Of Glaciers By Smita & Shruti
Melting Of Glaciers By Smita & Shrutisubzero64
 
Glacial ice powerpoint
Glacial ice powerpointGlacial ice powerpoint
Glacial ice powerpointzbmamnnyl
 
Glacial environment
Glacial environmentGlacial environment
Glacial environmentAmr Elgabri
 
Glaciers and Glaciation
Glaciers and GlaciationGlaciers and Glaciation
Glaciers and Glaciationtcooper66
 
Glaciation-saksham.pptx
Glaciation-saksham.pptxGlaciation-saksham.pptx
Glaciation-saksham.pptxMisbaShaikh42
 
Sea Ice And Glaical Ice.pptx
Sea Ice And Glaical Ice.pptxSea Ice And Glaical Ice.pptx
Sea Ice And Glaical Ice.pptxEricJoseph31
 
Lesson 8 periglacial processes and their landscapes and landforms
Lesson 8   periglacial processes and their landscapes and landformsLesson 8   periglacial processes and their landscapes and landforms
Lesson 8 periglacial processes and their landscapes and landformsJames Foster
 

Ähnlich wie Snowballs (20)

Winter ecology notes frost, snow, and ice
Winter ecology notes frost, snow, and iceWinter ecology notes frost, snow, and ice
Winter ecology notes frost, snow, and ice
 
Glaciers, Polar Ice and Global Warming
Glaciers, Polar Ice and Global Warming Glaciers, Polar Ice and Global Warming
Glaciers, Polar Ice and Global Warming
 
What are periglacial processes?
What are periglacial processes?What are periglacial processes?
What are periglacial processes?
 
Physical Processes
Physical ProcessesPhysical Processes
Physical Processes
 
What is a glacier
What is a glacier What is a glacier
What is a glacier
 
AVALANCHES
AVALANCHESAVALANCHES
AVALANCHES
 
Winter ecology notes climate
Winter ecology notes climateWinter ecology notes climate
Winter ecology notes climate
 
Melting Of Glaciers By Smita & Shruti
Melting Of Glaciers By Smita & ShrutiMelting Of Glaciers By Smita & Shruti
Melting Of Glaciers By Smita & Shruti
 
Glacial ice powerpoint
Glacial ice powerpointGlacial ice powerpoint
Glacial ice powerpoint
 
Precipitation.pptx
Precipitation.pptxPrecipitation.pptx
Precipitation.pptx
 
Avalanche
AvalancheAvalanche
Avalanche
 
Glacial environment
Glacial environmentGlacial environment
Glacial environment
 
Glaciers and Glaciation
Glaciers and GlaciationGlaciers and Glaciation
Glaciers and Glaciation
 
Glaciation-saksham.pptx
Glaciation-saksham.pptxGlaciation-saksham.pptx
Glaciation-saksham.pptx
 
Snow slips
Snow slipsSnow slips
Snow slips
 
Glacial Systems
Glacial SystemsGlacial Systems
Glacial Systems
 
Sea Ice And Glaical Ice.pptx
Sea Ice And Glaical Ice.pptxSea Ice And Glaical Ice.pptx
Sea Ice And Glaical Ice.pptx
 
Avalanche
AvalancheAvalanche
Avalanche
 
Glaciers
GlaciersGlaciers
Glaciers
 
Lesson 8 periglacial processes and their landscapes and landforms
Lesson 8   periglacial processes and their landscapes and landformsLesson 8   periglacial processes and their landscapes and landforms
Lesson 8 periglacial processes and their landscapes and landforms
 

Mehr von George Martin

Theworldlargestaircraft
TheworldlargestaircraftTheworldlargestaircraft
TheworldlargestaircraftGeorge Martin
 
The+most+stunning+photos+of+2012!
The+most+stunning+photos+of+2012!The+most+stunning+photos+of+2012!
The+most+stunning+photos+of+2012!George Martin
 
Meet the train~nice!!
Meet the train~nice!!Meet the train~nice!!
Meet the train~nice!!George Martin
 
Marina bay sands_hotel,_singapore
Marina bay sands_hotel,_singaporeMarina bay sands_hotel,_singapore
Marina bay sands_hotel,_singaporeGeorge Martin
 
Maison blancheimagesrares(sje)
Maison blancheimagesrares(sje)Maison blancheimagesrares(sje)
Maison blancheimagesrares(sje)George Martin
 
Lovemewithallyourheart
LovemewithallyourheartLovemewithallyourheart
LovemewithallyourheartGeorge Martin
 
Mil hist wwii the long patrol
Mil hist   wwii the long patrolMil hist   wwii the long patrol
Mil hist wwii the long patrolGeorge Martin
 
La terre-vue-du-ciel
La terre-vue-du-cielLa terre-vue-du-ciel
La terre-vue-du-cielGeorge Martin
 
Las joyas de_la_corona_britanica_marta
Las joyas de_la_corona_britanica_martaLas joyas de_la_corona_britanica_marta
Las joyas de_la_corona_britanica_martaGeorge Martin
 
L'+hiver+en+bavière+!+rég
L'+hiver+en+bavière+!+régL'+hiver+en+bavière+!+rég
L'+hiver+en+bavière+!+régGeorge Martin
 

Mehr von George Martin (20)

Old Memories
Old MemoriesOld Memories
Old Memories
 
Theworldlargestaircraft
TheworldlargestaircraftTheworldlargestaircraft
Theworldlargestaircraft
 
The+most+stunning+photos+of+2012!
The+most+stunning+photos+of+2012!The+most+stunning+photos+of+2012!
The+most+stunning+photos+of+2012!
 
Photos historic
Photos historicPhotos historic
Photos historic
 
Men and their_bb_qs
Men and their_bb_qsMen and their_bb_qs
Men and their_bb_qs
 
Meet the train~nice!!
Meet the train~nice!!Meet the train~nice!!
Meet the train~nice!!
 
Marine photos1
Marine photos1Marine photos1
Marine photos1
 
Marina bay sands_hotel,_singapore
Marina bay sands_hotel,_singaporeMarina bay sands_hotel,_singapore
Marina bay sands_hotel,_singapore
 
Mans best friend
Mans best friendMans best friend
Mans best friend
 
Man inspacesjb
Man inspacesjbMan inspacesjb
Man inspacesjb
 
Maison blancheimagesrares(sje)
Maison blancheimagesrares(sje)Maison blancheimagesrares(sje)
Maison blancheimagesrares(sje)
 
Luftwaffe ww2(pb)
Luftwaffe ww2(pb)Luftwaffe ww2(pb)
Luftwaffe ww2(pb)
 
Lovemewithallyourheart
LovemewithallyourheartLovemewithallyourheart
Lovemewithallyourheart
 
Louis+armstrong
Louis+armstrongLouis+armstrong
Louis+armstrong
 
Mil hist wwii the long patrol
Mil hist   wwii the long patrolMil hist   wwii the long patrol
Mil hist wwii the long patrol
 
London eye
London eyeLondon eye
London eye
 
La terre-vue-du-ciel
La terre-vue-du-cielLa terre-vue-du-ciel
La terre-vue-du-ciel
 
Las joyas de_la_corona_britanica_marta
Las joyas de_la_corona_britanica_martaLas joyas de_la_corona_britanica_marta
Las joyas de_la_corona_britanica_marta
 
Lake superior
Lake superiorLake superior
Lake superior
 
L'+hiver+en+bavière+!+rég
L'+hiver+en+bavière+!+régL'+hiver+en+bavière+!+rég
L'+hiver+en+bavière+!+rég
 

Snowballs

  • 1.
  • 2.
  • 3.
  • 4. There is no meteorological term for this natural phenomenon which happens when large amounts of snow fall around large lakes or oceans. With the movement of the waves, the snow becomes ice and is transformed into “ice-balls”
  • 5.
  • 6.
  • 7. Hundreds and thousands of ice-balls with a centre of snow, the size of a football gather along the beaches to give this wonderful spectacle. This happens when the water temperature is at 0°. Its a phenomenon known as "Lolly " by the fishermen of the Cap Breton island of Nova Scotia.
  • 8.
  • 9.
  • 10. According to the Swedish meteorological agancy, SMHI, this rare phenomenon when the soft snow accumulates and is rolled over and over by the wind on the beaches. Its the same processus as when the erosion of stoned transforms them into pebbles.
  • 11. Ice-balls on Lake Michigan, USA.
  • 12.
  • 13.
  • 15.
  • 16.
  • 17.
  • 18. This other meteorological phenomenon which forms rolls of snow, also called ’snowrollers’, is also quite rare.
  • 19.
  • 20. This happens when the wind winds layers of snow, one on top of the other. Due to the combined temperature, humidity, speed of the wind and the slope of the ground, rolls are formed
  • 21.
  • 22.
  • 23. A surface of ice or ground covered in snow enables the rolls to form. If the surface is made of ice, this ice must also be covered by a layer of “loose snow” of about 2cm and a temperature very near the ice’s melting point.
  • 24. -Air temperature must be constant between 0° and 1° - The wind must be strong enough to mobe the rolls of snow, but not too strong, so that it breaks them up so it must blow at approximately 40 Km/h.
  • 25. -A gust of wind lifts some snow, like a spoon would with some iced cream. Repetition of these gusts of wind enables the « roll » to move forward and to collect more snow each time.
  • 26.
  • 27.
  • 28. The size of the rolls can be of several centimeters. Some have even been seen up to 70cm.
  • 29.
  • 30.
  • 31.
  • 32.
  • 33. When the « roll » is too heavy to be moved by the wind or if it comes upon an obstacle, it stops, leaving behind it the imprint of its journey.
  • 34.
  • 35.
  • 36. There is often a hole, in the very centre, because the layers are thinner than those on the outside and so they melt easily leaving a shape like a « Doughnut ».
  • 37.
  • 38.
  • 39.
  • 40. These snow balls can also be formed by the action of gravity itself; like when snow falls from a tree or a cliff and lands on a slope, it can start rolling and form a ball. In this way « rolls » can form in hilly areas.
  • 41.
  • 42.
  • 43.
  • 44.
  • 45.