Snowballs On The Beach!!
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This document describes two natural phenomena involving snow - lollys and snowrollers. Lollys are large ice balls that form along beaches near large lakes or oceans when snow falls into the water and is transformed by wave movement. Snowrollers are rolls of snow formed by wind that lifts and moves layers of snow, rolling it into cylindrical shapes that can be several centimeters or even up to 70cm long. Specific weather conditions including wind speed, temperature and slope are needed for snowrollers to form.
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Snowballs
This document discusses two rare meteorological phenomena - "lolly" and "snowrollers". Lolly occurs when large amounts of snow fall near lakes or oceans, and the movement of waves transforms the snow into hundreds or thousands of ice balls on beaches. Snowrollers form when wind blows layers of snow on top of each other, causing rolls of snow to form on surfaces covered in a thin layer of loose snow near the melting point. Under the right temperature, humidity, wind speed and slope conditions, the rolls can move and collect more snow, growing up to 70cm large.
Ice balls and_snow_rollers
This document summarizes two curious weather phenomena: ice balls and snow rollers. [1] Ice balls form along shores after heavy snowfall, as waves turn snow into ice balls up to the size of a football. [2] Snow rollers are rare cylindrical snow formations that form under precise conditions, including a moist snow layer, temperatures near freezing, and winds around 40 km/h that roll the snow like scooping ice cream. [3] Snow rollers can reach sizes of several centimeters in diameter, with one recorded at 70 cm wide, and stop rolling when too heavy or hitting an obstacle.
Ice balls and snow rollers
This document describes two rare weather phenomena: ice balls and snow rollers. Ice balls occur along shores after heavy snowfalls, as the snow is turned to ice by wave motion, forming large frozen balls. Snow rollers are cylindrical snow formations that form when powder snow is blown by winds of 40 km/h over ice or frozen surfaces at temperatures near 0°C, causing the snow to roll into cylinders that can reach 70cm in diameter. Both require precise temperature and wind conditions to form.
Ice balls and snow rollers
This document describes two rare weather phenomena: ice balls and snow rollers. Ice balls occur along shores after heavy snowfalls, where waves turn snow to ice balls up to the size of footballs. Snow rollers are cylindrical snow formations that form when a 2cm layer of powdery snow glides easily on ice or frozen surfaces under winds of 40km/h, causing snow to roll into cylinders up to 70cm in diameter. Both require specific temperature and environmental conditions to form.
13. landforms
The document discusses various periglacial landforms including tors, blockfields, pingos, ice wedges, patterned ground, talus, and solifluction lobes. It provides details on the key features, formation processes, and examples of open system and closed system pingos. Open system pingos form in valley bottoms where water collects and freezes into ice lenses, swelling the ground surface. Closed system pingos form when lake sediment insulates the ground and causes ice to build up from trapped water, pushing the sediment into dome shapes.
Desert presentation
This presentation is about deserts and how they are formed . The effect of rains in deserts has also been explained.
Desert
Deserts form through weathering from large daily temperature variations, occasional rainfall, and wind erosion. When it does rain, the water can quickly form flash floods. Sandstorms are common and can move entire sand dunes as wind blows loose sand. Animals that live in deserts have adapted to the harsh conditions, with many burrowing underground or storing water in humps and wasting little, like camels.
Compufield desert ppt
Deserts form through weathering from large daily temperature variations, occasional rainfall, and wind erosion. When it does rain, the water can quickly form flash floods. Sandstorms are common and can move entire sand dunes as wind blows loose sand. Animals that live in deserts have adapted to the harsh conditions, with many burrowing underground or storing water in humps and wasting little, like camels.
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Snowballs
This document discusses two rare meteorological phenomena - "lolly" and "snowrollers". Lolly occurs when large amounts of snow fall near lakes or oceans, and the movement of waves transforms the snow into hundreds or thousands of ice balls on beaches. Snowrollers form when wind blows layers of snow on top of each other, causing rolls of snow to form on surfaces covered in a thin layer of loose snow near the melting point. Under the right temperature, humidity, wind speed and slope conditions, the rolls can move and collect more snow, growing up to 70cm large.
Ice balls and_snow_rollers
This document summarizes two curious weather phenomena: ice balls and snow rollers. [1] Ice balls form along shores after heavy snowfall, as waves turn snow into ice balls up to the size of a football. [2] Snow rollers are rare cylindrical snow formations that form under precise conditions, including a moist snow layer, temperatures near freezing, and winds around 40 km/h that roll the snow like scooping ice cream. [3] Snow rollers can reach sizes of several centimeters in diameter, with one recorded at 70 cm wide, and stop rolling when too heavy or hitting an obstacle.
Ice balls and snow rollers
This document describes two rare weather phenomena: ice balls and snow rollers. Ice balls occur along shores after heavy snowfalls, as the snow is turned to ice by wave motion, forming large frozen balls. Snow rollers are cylindrical snow formations that form when powder snow is blown by winds of 40 km/h over ice or frozen surfaces at temperatures near 0°C, causing the snow to roll into cylinders that can reach 70cm in diameter. Both require precise temperature and wind conditions to form.
Ice balls and snow rollers
This document describes two rare weather phenomena: ice balls and snow rollers. Ice balls occur along shores after heavy snowfalls, where waves turn snow to ice balls up to the size of footballs. Snow rollers are cylindrical snow formations that form when a 2cm layer of powdery snow glides easily on ice or frozen surfaces under winds of 40km/h, causing snow to roll into cylinders up to 70cm in diameter. Both require specific temperature and environmental conditions to form.
13. landforms
The document discusses various periglacial landforms including tors, blockfields, pingos, ice wedges, patterned ground, talus, and solifluction lobes. It provides details on the key features, formation processes, and examples of open system and closed system pingos. Open system pingos form in valley bottoms where water collects and freezes into ice lenses, swelling the ground surface. Closed system pingos form when lake sediment insulates the ground and causes ice to build up from trapped water, pushing the sediment into dome shapes.
Desert presentation
This presentation is about deserts and how they are formed . The effect of rains in deserts has also been explained.
Desert
Deserts form through weathering from large daily temperature variations, occasional rainfall, and wind erosion. When it does rain, the water can quickly form flash floods. Sandstorms are common and can move entire sand dunes as wind blows loose sand. Animals that live in deserts have adapted to the harsh conditions, with many burrowing underground or storing water in humps and wasting little, like camels.
Compufield desert ppt
Deserts form through weathering from large daily temperature variations, occasional rainfall, and wind erosion. When it does rain, the water can quickly form flash floods. Sandstorms are common and can move entire sand dunes as wind blows loose sand. Animals that live in deserts have adapted to the harsh conditions, with many burrowing underground or storing water in humps and wasting little, like camels.
Basal Slippage
The document outlines the process of ice sheet formation and movement in 4 steps: 1) snowfall accumulates and compresses to form an ice sheet, 2) pressure causes basal melt, 3) the lubricated ice sheet moves via basal slippage due to gravity, 4) the ice sheet flows out to sea forming an ice shelf, which periodically calves icebergs in summer. The reader is instructed to copy the diagram as it progresses through each step, swapping sheets with a partner between diagrams.
Precipitation. by engr. ghulam yasin taunsvi
1. Rain - liquid deposits falling from the atmosphere
to the surface
- with a diameter > 0.5 mm
- < 0.5 mm: drizzle
- max. size: about 5 - 7 mm
(too large to remain suspended)
- beyond this size, inter-molecular cohesive
forces become to weak to be held in the
mass of water together as a single drop
Presentation1
The water cycle describes the continuous movement of water on, above, and below the Earth's surface. It involves evaporation of water from oceans, rivers, and lakes into water vapor that rises into the atmosphere. The water vapor condenses to form clouds and precipitation such as rain or snow falls back to Earth, collecting in bodies of water and completing the cycle. The main stages are evaporation, condensation, precipitation, and collection as runoff flowing into streams, rivers, lakes, and oceans.
Powerpoint
Glaciers are rivers of ice that move slowly, while ice sheets are masses of glacier ice greater than 50,000 square kilometers covering surrounding land. Glaciers form where annual snowfall exceeds melting and certain climatic conditions exist, allowing more snow to accumulate than melt each summer. Ice sheets only exist in Antarctica and Greenland, where winter snow does not fully melt by summer. Approximately three quarters of Earth's freshwater is stored as glaciers and ice sheets, which are the largest freshwater reservoirs on the planet.
Precipitation Types
Precipitation forms when liquid or solid particles become too heavy to stay suspended in clouds and fall to the ground. In the tropics, rain forms through collision-coalescence as water droplets in clouds grow larger by colliding and combining until they fall. In high latitudes, ice crystals form directly from water vapor through deposition or snowflakes may form and fall. The type of precipitation depends on temperatures throughout its descent, with rain occurring if temperatures remain above freezing and snow or sleet forming if temperatures dip below freezing.
Kinds of precipitation
The document discusses the main types of precipitation: rain, snow, sleet, and hail. Rain falls as liquid when temperatures are above 0°C and is the most common type. Snow forms from ice crystals when temperatures are cold enough to freeze water vapor directly into ice. Sleet consists of frozen rain droplets that form when rain passes through a layer of freezing air. Hail develops when rain freezes into balls or chunks of ice that accumulate additional layers of ice and vapor as they are pushed between cold and warm air currents.
Types of Precipitation
Precipitation is water that falls from the sky in various forms including rain, sleet, freezing rain, snow, and hail. Rain is the most common type and occurs when drops of liquid water fall from clouds. Other types include sleet which is a mixture of snow and rain, freezing rain which freezes on contact, snow which forms directly from water vapor, and hail which grows larger after repeated trips up and down within storm clouds.
The water cycle (science)
The water cycle is powered by the sun's energy warming ocean water and causing evaporation. Water vapor condenses into clouds which grow heavy and precipitate as rain, snow, sleet or hail into rivers, lakes and oceans. The collected water returns to the oceans to be warmed by the sun and restart the cycle.
The Bergeron Process
The Bergeron process describes how precipitation forms in clouds. It involves the properties of supercooled water and ice crystals. Supercooled water droplets remain liquid below freezing temperatures until they contact an ice nucleus. Ice crystals grow more easily than liquid droplets because water vapor pressure is lower above ice. This causes ice crystals to grow at the expense of water droplets, producing snow or other forms of precipitation.
VOLCANOES
Volcanoes can erupt without warning, causing several dangerous events. First, steam shoots from cracks as the surface bulges outward. Second, thick ash clouds block sunlight and fall like snow, burying the area below. Third, when lava meets the cold sea, there is an explosive, steamy reaction and the lava hardens into rock. Volcanoes are frightening because their eruptions cannot be predicted after being dormant for years.
How does earth changes
The earth changes slowly through processes like water erosion, wind erosion, and ice erosion. Water erosion occurs as fast moving water breaks down rocks, wind erosion carries away sand and soil, and ice breaks down rocks as it forms in cracks and pushes them apart. The earth also changes quickly through earthquakes when the earth shakes, volcanoes which are openings in the earth's crust, floods from heavy rainfall, and landslides where rocks and soil slide down hills.
Water cycle blog
The water cycle involves evaporation where water from bodies of water evaporates into water vapor when hot. The water vapor then condenses to form clouds. When the clouds become cold, precipitation occurs as rain or snow falls back to bodies of water, completing the cycle.
desert presentation
Deserts are barren areas that receive little precipitation, making conditions hostile for plant and animal life. Deserts are formed through temperature variations that strain and break rocks, occasional heavy rains that cause hot rocks to shatter, and winds that further erode the desert floor through weathering. Deserts have sandstorms and are home to animals that are adapted to the harsh, dry environment.
Precipitation powerpoint
Continuous condensation causes cloud droplets to grow until, unable to resist gravity, they fall from clouds as precipitation like rain, snow, or hail. Rain consists of water drops over 0.5mm, snow falls as tiny ice crystals below 0°C, and hail forms when water droplets pass through cold layers and freeze into ice pellets before reaching the ground.
Water in the Atmosphere and Evaporation
The document summarizes key aspects of the water cycle including evaporation, condensation, precipitation, runoff, and groundwater. It explains that evaporation occurs when water absorbs heat from the sun and changes from a liquid to gas, condensation is the process of water vapor changing back to a liquid as air cools, and precipitation occurs when water droplets become too heavy for the air to hold and fall to the surface as rain, snow or hail. The water cycle continuously circulates Earth's water supply through these processes of atmospheric water moving between air, land, and sea.
Winter ecology notes frost, snow, and ice
The basic aspects of winter revolve around water and how it freezes and how our bodies try to prevent its freezing. In the exterior world ice, frost, snow are expressions of the winter season.
Glaciers, Polar Ice and Global Warming
Glaciers form from accumulated snow over hundreds of years that moves slowly downhill due to gravity. Polar ice sheets are massive frozen fields of ice covering the North or South Pole. Global warming causes the average temperature of the Earth's atmosphere to increase. When snow accumulates over time without melting, it compresses into firmer layers that eventually form glaciers, ice caps, and polar ice sheets.
What are periglacial processes?
Here are the key periglacial processes likely occurring around the glacier shown in Figure 2:
- Frost shattering of rock producing scree slopes at the base of valley sides due to repeated freezing and thawing.
- Solifluction occurring on valley sides within the active layer, transporting fine material downslope and leaving lobes and terraces.
- Nivation occurring in hollows beneath snowpatches on north-facing slopes, deepening the hollows through frost action and meltwater erosion.
- Patterned ground such as stone stripes forming in better drained areas subjected to freeze-thaw cycles.
- Fluvial erosion by meltwater streams flowing from the glacier, causing erosion and leaving braided
Physical Processes
The document describes the process of glacial movement and ice sheet formation. Snow accumulates over thousands of years and is compressed into ice, forming ice sheets. The bottom layer of ice experiences basal melt due to pressure, lubricating the ice and allowing it to slide over bedrock downhill via gravity in a process called basal slip. Ice streams and glaciers carry the ice to coastal regions, where some forms ice shelves that float in deeper waters and calve off icebergs.
What is a glacier
in this presentation I will discus about the glacier, different type of glacier, formation of glacier and its movement from height toward lower area and supply water to our rivers
AVALANCHES
An avalanche is a rapid flow of snow down a sloping surface that is usually triggered by a failure in the snowpack. There are two main types of avalanches - loose snow avalanches which involve snow with little cohesion, and slab avalanches where a cohesive slab slides on a weaker layer. Many factors influence avalanche formation including temperature, wind, vegetation, snowpack characteristics, and terrain. Avalanches can be triggered naturally or artificially and precautions include preventing weak layers from forming through controlled explosions or directing snow placement, while barriers can help mitigate damage.
Winter ecology notes climate
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The document outlines the process of ice sheet formation and movement in 4 steps: 1) snowfall accumulates and compresses to form an ice sheet, 2) pressure causes basal melt, 3) the lubricated ice sheet moves via basal slippage due to gravity, 4) the ice sheet flows out to sea forming an ice shelf, which periodically calves icebergs in summer. The reader is instructed to copy the diagram as it progresses through each step, swapping sheets with a partner between diagrams.
Precipitation. by engr. ghulam yasin taunsvi
1. Rain - liquid deposits falling from the atmosphere
to the surface
- with a diameter > 0.5 mm
- < 0.5 mm: drizzle
- max. size: about 5 - 7 mm
(too large to remain suspended)
- beyond this size, inter-molecular cohesive
forces become to weak to be held in the
mass of water together as a single drop
Presentation1
The water cycle describes the continuous movement of water on, above, and below the Earth's surface. It involves evaporation of water from oceans, rivers, and lakes into water vapor that rises into the atmosphere. The water vapor condenses to form clouds and precipitation such as rain or snow falls back to Earth, collecting in bodies of water and completing the cycle. The main stages are evaporation, condensation, precipitation, and collection as runoff flowing into streams, rivers, lakes, and oceans.
Powerpoint
Glaciers are rivers of ice that move slowly, while ice sheets are masses of glacier ice greater than 50,000 square kilometers covering surrounding land. Glaciers form where annual snowfall exceeds melting and certain climatic conditions exist, allowing more snow to accumulate than melt each summer. Ice sheets only exist in Antarctica and Greenland, where winter snow does not fully melt by summer. Approximately three quarters of Earth's freshwater is stored as glaciers and ice sheets, which are the largest freshwater reservoirs on the planet.
Precipitation Types
Precipitation forms when liquid or solid particles become too heavy to stay suspended in clouds and fall to the ground. In the tropics, rain forms through collision-coalescence as water droplets in clouds grow larger by colliding and combining until they fall. In high latitudes, ice crystals form directly from water vapor through deposition or snowflakes may form and fall. The type of precipitation depends on temperatures throughout its descent, with rain occurring if temperatures remain above freezing and snow or sleet forming if temperatures dip below freezing.
Kinds of precipitation
The document discusses the main types of precipitation: rain, snow, sleet, and hail. Rain falls as liquid when temperatures are above 0°C and is the most common type. Snow forms from ice crystals when temperatures are cold enough to freeze water vapor directly into ice. Sleet consists of frozen rain droplets that form when rain passes through a layer of freezing air. Hail develops when rain freezes into balls or chunks of ice that accumulate additional layers of ice and vapor as they are pushed between cold and warm air currents.
Types of Precipitation
Precipitation is water that falls from the sky in various forms including rain, sleet, freezing rain, snow, and hail. Rain is the most common type and occurs when drops of liquid water fall from clouds. Other types include sleet which is a mixture of snow and rain, freezing rain which freezes on contact, snow which forms directly from water vapor, and hail which grows larger after repeated trips up and down within storm clouds.
The water cycle (science)
The water cycle is powered by the sun's energy warming ocean water and causing evaporation. Water vapor condenses into clouds which grow heavy and precipitate as rain, snow, sleet or hail into rivers, lakes and oceans. The collected water returns to the oceans to be warmed by the sun and restart the cycle.
The Bergeron Process
The Bergeron process describes how precipitation forms in clouds. It involves the properties of supercooled water and ice crystals. Supercooled water droplets remain liquid below freezing temperatures until they contact an ice nucleus. Ice crystals grow more easily than liquid droplets because water vapor pressure is lower above ice. This causes ice crystals to grow at the expense of water droplets, producing snow or other forms of precipitation.
VOLCANOES
Volcanoes can erupt without warning, causing several dangerous events. First, steam shoots from cracks as the surface bulges outward. Second, thick ash clouds block sunlight and fall like snow, burying the area below. Third, when lava meets the cold sea, there is an explosive, steamy reaction and the lava hardens into rock. Volcanoes are frightening because their eruptions cannot be predicted after being dormant for years.
How does earth changes
The earth changes slowly through processes like water erosion, wind erosion, and ice erosion. Water erosion occurs as fast moving water breaks down rocks, wind erosion carries away sand and soil, and ice breaks down rocks as it forms in cracks and pushes them apart. The earth also changes quickly through earthquakes when the earth shakes, volcanoes which are openings in the earth's crust, floods from heavy rainfall, and landslides where rocks and soil slide down hills.
Water cycle blog
The water cycle involves evaporation where water from bodies of water evaporates into water vapor when hot. The water vapor then condenses to form clouds. When the clouds become cold, precipitation occurs as rain or snow falls back to bodies of water, completing the cycle.
desert presentation
Deserts are barren areas that receive little precipitation, making conditions hostile for plant and animal life. Deserts are formed through temperature variations that strain and break rocks, occasional heavy rains that cause hot rocks to shatter, and winds that further erode the desert floor through weathering. Deserts have sandstorms and are home to animals that are adapted to the harsh, dry environment.
Precipitation powerpoint
Continuous condensation causes cloud droplets to grow until, unable to resist gravity, they fall from clouds as precipitation like rain, snow, or hail. Rain consists of water drops over 0.5mm, snow falls as tiny ice crystals below 0°C, and hail forms when water droplets pass through cold layers and freeze into ice pellets before reaching the ground.
Water in the Atmosphere and Evaporation
The document summarizes key aspects of the water cycle including evaporation, condensation, precipitation, runoff, and groundwater. It explains that evaporation occurs when water absorbs heat from the sun and changes from a liquid to gas, condensation is the process of water vapor changing back to a liquid as air cools, and precipitation occurs when water droplets become too heavy for the air to hold and fall to the surface as rain, snow or hail. The water cycle continuously circulates Earth's water supply through these processes of atmospheric water moving between air, land, and sea.
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Similar to Snowballs On The Beach!!
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The basic aspects of winter revolve around water and how it freezes and how our bodies try to prevent its freezing. In the exterior world ice, frost, snow are expressions of the winter season.
Glaciers, Polar Ice and Global Warming
Glaciers form from accumulated snow over hundreds of years that moves slowly downhill due to gravity. Polar ice sheets are massive frozen fields of ice covering the North or South Pole. Global warming causes the average temperature of the Earth's atmosphere to increase. When snow accumulates over time without melting, it compresses into firmer layers that eventually form glaciers, ice caps, and polar ice sheets.
What are periglacial processes?
Here are the key periglacial processes likely occurring around the glacier shown in Figure 2:
- Frost shattering of rock producing scree slopes at the base of valley sides due to repeated freezing and thawing.
- Solifluction occurring on valley sides within the active layer, transporting fine material downslope and leaving lobes and terraces.
- Nivation occurring in hollows beneath snowpatches on north-facing slopes, deepening the hollows through frost action and meltwater erosion.
- Patterned ground such as stone stripes forming in better drained areas subjected to freeze-thaw cycles.
- Fluvial erosion by meltwater streams flowing from the glacier, causing erosion and leaving braided
Physical Processes
The document describes the process of glacial movement and ice sheet formation. Snow accumulates over thousands of years and is compressed into ice, forming ice sheets. The bottom layer of ice experiences basal melt due to pressure, lubricating the ice and allowing it to slide over bedrock downhill via gravity in a process called basal slip. Ice streams and glaciers carry the ice to coastal regions, where some forms ice shelves that float in deeper waters and calve off icebergs.
What is a glacier
in this presentation I will discus about the glacier, different type of glacier, formation of glacier and its movement from height toward lower area and supply water to our rivers
AVALANCHES
An avalanche is a rapid flow of snow down a sloping surface that is usually triggered by a failure in the snowpack. There are two main types of avalanches - loose snow avalanches which involve snow with little cohesion, and slab avalanches where a cohesive slab slides on a weaker layer. Many factors influence avalanche formation including temperature, wind, vegetation, snowpack characteristics, and terrain. Avalanches can be triggered naturally or artificially and precautions include preventing weak layers from forming through controlled explosions or directing snow placement, while barriers can help mitigate damage.
Winter ecology notes climate
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Melting Of Glaciers By Smita & Shruti
Glaciers are large masses of snow and ice that accumulate over time under their own weight and slowly flow outward. They are formed from accumulating snow, and their lower layers crack as they move due to their great size and weight. It is normal for glaciers to melt gradually as temperatures rise, but many glaciers today are melting faster than snow can replenish them, reducing their sizes and contributing to rising sea levels. There are different types of glaciers including alpine, continental, and valley glaciers.
Glacial ice powerpoint
Glacial ice is the largest reservoir of freshwater on Earth and supports one third of the world's population. Glaciers form on land where snow accumulation exceeds melting. They slowly deform and flow due to their own weight, creating features like crevasses. Glaciers erode the underlying landscape through abrasion and plucking of rock debris. As they carry this debris and later melt, glaciers leave behind landforms such as moraines, eskers, and drumlins that provide evidence of past glacial activity. Glacial periods within ice ages are marked by colder temperatures and advancing glaciers, while interglacials are warmer intervals between them.
Precipitation.pptx
This document is a seminar paper on precipitation submitted by Sagar Singh B to their lecturer Ramya D. It defines precipitation as water falling from clouds under gravity in forms like rain, snow, or hail. It describes different types of precipitation such as rain, drizzle, snow, hail, glaze, rime, and sleet. It explains how precipitation forms in warm and cold clouds through processes like collision-coalescence and Bergeron. It also discusses international weather modification techniques for snow and rain making, fog dispersal, hail suppression, and frost prevention.
Avalanche
An avalanche is a mass of snow sliding down a mountain. There are different types including surface avalanches which involve layers of snow with different properties sliding over each other, and full depth avalanches where the entire snow cover from the ground up slides. Avalanches are caused by various environmental factors including heavy snowfall, steep slopes, vibration, warm temperatures and layers of snow and ice building up. They can damage life, property and infrastructure and cause flash flooding, but are also a natural part of mountain ecosystems. Understanding avalanche patterns and avoiding likely start zones are important for preventing danger.
Glacial environment
This document summarizes key aspects of glacial environments and glacial landforms. It describes how snow accumulates over time to form glacial ice, and the different zones within glaciers. It also discusses the two main types of glaciers - mountain/alpine glaciers and continental ice sheets - and how they form and move. The document outlines various erosional landforms created by glaciers such as cirques, arêtes, and U-shaped valleys. It also describes depositional features including moraines, eskers, kames, and drumlins. In summary, the document provides an overview of glacial formation, movement, erosion processes, and resulting landforms.
Glaciers and Glaciation
Glaciers are large, slow-moving masses of ice that form from compacted snow. They are found in mountain ranges and polar regions. Glaciers are sensitive to climate conditions and influence sea levels and water resources. They are categorized based on their thermal characteristics, behavior, and location. Alpine glaciers are confined to valleys while continental glaciers span entire regions. As glaciers accumulate more snow than melts, they grow, but melting exceeds accumulation in warmer periods, causing glaciers to recede.
Glaciation-saksham.pptx
Glaciers form from compacted snow and slowly move under gravity, eroding the landscape. During glaciation, mountain valleys are typically V-shaped but become wider and deeper U-shapes as glaciers scour the rock. Glacial erosion forms landforms like moraines, corries, pyramidal peaks, and arêtes. Kames are hills left when glacial meltwater deposits sediment. Alaska has over 100,000 unnamed glaciers within its landscape.
Snow slips
Snow refers to frozen crystalline water that forms and falls from the atmosphere and accumulates on surfaces. Orographic lifting occurs when air masses are forced up mountainsides, cooling and causing precipitation. Avalanches are rapid flows of snow down slopes that are usually triggered by additional weight from snowfall that exceeds the snowpack's strength. They can be started by a small amount of snow and propagate rapidly, entraining large volumes of snow.
Glacial Systems
Glacial systems operate similarly to viscous river systems by abrading and plucking sediment from a source area and transporting it to a depositional basin. Glaciers act as conveyor belts, moving large quantities of sediment. Factors like cold temperatures and precipitation are required for ice to accumulate and flow as glaciers. Glaciers essentially function as frozen drainage systems that transport water, sediment, and debris via internal shear and depositional processes from accumulation zones to terminus basins.
Sea Ice And Glaical Ice.pptx
This document discusses sea ice and glacial ice. It defines key terms like cryosphere, snow, ice, sea ice and glaciers. It explains that sea ice forms from frozen ocean water, while glacial ice forms from frozen freshwater or snow. The main differences between the two types of ice are outlined. The formation processes of both sea ice and glacial ice are described. The importance of sea ice and glacial ice to climate, ocean circulation, freshwater supply and more is highlighted. Evidence of rapid climate change currently melting these ice forms is reviewed. The effects of sea ice and glacier melting on the environment and humanity are also examined. Potential solutions to address ice melting are proposed.
Avalanche
An avalanche is a mass of snow, ice, and debris that slides down a mountain. There are four main types of avalanches: loose snow, slab, powder snow, and wet snow. Avalanches are triggered by factors like heavy snowfall, earthquakes, steep slopes, and human activity. They can reach speeds over 130 kph and destroy infrastructure, posing a serious threat to human life and property. Avalanche forecasting requires experienced forecasters collecting snowpack data and using weather models to predict unstable slopes. Control techniques use explosives or structures to divert or trigger avalanches in low-risk areas.
Glaciers
Meaning and formation of glaciers along with their impact and interaction with the environment such as erosion, transportation and deposition.
Lesson 8 periglacial processes and their landscapes and landforms
Ice heave, frost push and other periglacial processes explained as well as the action of freeze thaw and the features it presents
Similar to Snowballs On The Beach!! (20)
Lesson 8 periglacial processes and their landscapes and landforms
Lesson 8 periglacial processes and their landscapes and landforms
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原版定制【微信:bwp0011】《(cardiff学位证书)英国卡迪夫大学毕业证本科学历》【微信:bwp0011】成绩单 、雅思、外壳、留信学历认证永久存档查询，采用学校原版纸张、特殊工艺完全按照原版一比一制作（包括：隐形水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠，文字图案浮雕，激光镭射，紫外荧光，温感，复印防伪）行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备，十五年致力于帮助留学生解决难题，业务范围有加拿大、英国、澳洲、韩国、美国、新加坡，新西兰等学历材料，包您满意。
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二、回国进私企、外企、自己做生意的情况，这些单位是不查询毕业证真伪的，而且国内没有渠道去查询国外文凭的真假，也不需要提供真实教育部认证。鉴于此，办理一份毕业证【微信bwp0011】即可
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留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
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【关于价格问题（保证一手价格）】
我们所定的价格是非常合理的，而且我们现在做得单子大多数都是代理和回头客户介绍的所以一般现在有新的单子 我给客户的都是第一手的代理价格，因为我想坦诚对待大家 不想跟大家在价格方面浪费时间
对于老客户或者被老客户介绍过来的朋友，我们都会适当给一些优惠。
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高精端提供以下服务：
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二：真实使馆认证（留学人员回国证明）使馆存档
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A.为什么留学生需要操作留信认证?
留信认证全称全国留学生信息服务网认证,隶属于北京中科院。①留信认证门槛条件更低,费用更美丽,并且包过,完单周期短,效率高②留信认证虽然不能去国企,但是一般的公司都没有问题,因为国内很多公司连基本的留学生学历认证都不了解。这对于留学生来说,这就比自己光拿一个证书更有说服力,因为留学学历可以在留信网站上进行查询!
B.为什么我们提供的毕业证成绩单具有使用价值？
查询留服认证是国内鉴别留学生海外学历的唯一途径但认证只是个体行为不是所有留学生都操作所以没有办理认证的留学生的学历在国内也是查询不到的他们也仅仅只有一张文凭。所以这时候我们提供的和学校颁发的一模一样的毕业证成绩单就有了使用价值。乌龟和王八贼头贼脑的倒也逗人喜爱日上三竿时山娃总爱窜进自家瓜棚里跟小伙伴们坐着聊天聊着聊着便忍不住往瓜田里逡巡一番抱起一只硕大的西瓜用石刀劈开抑或用拳头砸开每人抱起一大块就啃啃得满嘴满脸猴屁股般的红艳大家一个劲地指着对方吃吃地笑瓜裂得古怪奇形怪状却丝毫不影响瓜味甜丝丝的满嘴生津遍地都是瓜横七竖八的活像掷满了一地的大石块摘走二三只爷爷是断然发现不了的即便发现爷爷也不恼反而教山娃辨认孰熟孰嫩孰甜孰淡水
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Snowballs On The Beach!!
- 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”
- 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.
- 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.
- 14. Snow rolls
- 18. This other meteorological phenomenon which forms rolls of snow, also called ’snowrollers’, is also quite rare.
- 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
- 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.
- 28. The size of the rolls can be of several centimeters. Some have even been seen up to 70cm.
- 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.
- 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 ».
- 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.