Natural disasters
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Tornadoes are rotating air columns that extend from the base of a cumulonimbus cloud to the ground. They can be up to 1 km wide and several kilometers long. Most tornadoes have wind speeds between 65-180 km/h and cause material damage by destroying buildings and posing a risk to human life. Waterspouts are similar phenomena that form over water and can endanger ships, airplanes, and coastal structures by collecting water spray as they extend from cumulus clouds to the sea surface. The Bermuda Triangle is known for frequent waterspout activity that some suspect may be related to the mysterious disappearances of vessels and aircraft in that region.
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Natural Disasters by Roshan Adhithya
This document provides information about different types of natural disasters including earthquakes, floods, volcanic eruptions, cyclones, and tornados. Pictures are included to illustrate each type of disaster. It discusses the causes and impacts of each disaster type, such as building collapse, fires, and damage to infrastructure from earthquakes or volcanic ash. Statistics are given showing most natural catastrophes in 2012 were weather related, with over $170 billion in total costs. The document concludes with potential ways to prevent impacts of natural disasters like famine.
NATURAL CALAMITIES
This document defines and provides brief descriptions of major natural disasters:
- Tsunami, flood, drought, storm, and earthquake are listed as major natural disasters.
- A flood is defined as an overflow of water that submerges land, usually caused by river, lake, or ocean overflow.
- An earthquake is defined as the shaking of the Earth's surface from a sudden release of energy, creating seismic waves that can destroy cities.
- A tsunami is defined as a series of waves caused by large volumes of water displacement, often from earthquakes or volcanic eruptions.
Tornado копия
A tornado is a violently rotating column of air that extends from a cumulonimbus cloud to the ground. Most tornadoes are about 250 feet wide and travel a few miles before dissipating, but the strongest can be over 2 miles wide and stay on the ground for over 100 km. A drought is an extended period of below average rainfall that causes water shortages, harming local ecosystems and economies. A typhoon is a tropical cyclone that develops in the northwest Pacific Ocean between 180-100°E.
Natural disasters
This document summarizes several types of natural disasters:
Earthquakes are caused by the sudden release of energy in the Earth's crust, causing shaking and vibration at the surface. While earthquakes rarely directly kill people, secondary events like building collapses and tsunamis can cause loss of life. Floods occur when an overflow of water submerges land, and tsunamis are huge waves caused by undersea earthquakes that can damage coastal areas. Drought is a prolonged period of unusually low rainfall that fails crops and reduces water availability. Tornadoes are violent rotating columns of air that touch both the ground and storm clouds.
Natural Disasters
The document defines and describes several natural hazards and disasters:
Flood is the overflow of water that submerges land not normally covered. Earthquakes are sudden releases of energy in the Earth's crust that create seismic waves. Tornadoes are rotating columns of air in contact with the ground and clouds. Volcanic eruptions violently eject lava, ash, and rock onto the surface. Typhoons are tropical cyclones common to the Northwest Pacific. Avalanches are large, fast-moving masses of snow that can bury people and damage structures. Tsunamis are long ocean waves caused by earthquakes or asteroids that come ashore. Drought is a prolonged period without rainfall causing moisture levels to drop. Hunger
Cyclones as natural hazards
1. Cyclones are large rotating storm systems that form over warm ocean waters and bring powerful winds, heavy rain, and storm surges. They include hurricanes, typhoons, and tropical storms.
2. Cyclones originate from warm ocean waters that evaporate water vapor into the atmosphere, which condenses and releases heat to power the storm as it rotates due to the Coriolis effect.
3. Cyclones can cause devastating damage from their strong winds, heavy rainfall, and storm surges. Advanced warning and tracking systems help prepare communities for cyclones and mitigate their impacts.
Hail
Hail forms in cumulonimbus clouds as rain drops rise and freeze into ice pellets. These pellets grow larger as they are lifted up and down in the clouds, freezing more water onto their surfaces. Large hailstones can fall with great force and cause damage to crops, buildings, vehicles and even livestock. While forecasts can provide some warning, hailstorms are difficult to predict and protective measures like covering crops may help reduce losses when hail threatens. Hail poses a danger and causes harm through its physical impacts during storms.
Hailstorm
Any thunderstorm which produces hail that reaches the ground is known as a hailstorm. Hailstorm is a form of solid precipitation.
Topic: Definition, Causes, Distribution, Impacts, Prevention.
Prepared by Md. Nasim Fardous Zim
https://www.cda.org.bd
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Natural Disasters by Roshan Adhithya
This document provides information about different types of natural disasters including earthquakes, floods, volcanic eruptions, cyclones, and tornados. Pictures are included to illustrate each type of disaster. It discusses the causes and impacts of each disaster type, such as building collapse, fires, and damage to infrastructure from earthquakes or volcanic ash. Statistics are given showing most natural catastrophes in 2012 were weather related, with over $170 billion in total costs. The document concludes with potential ways to prevent impacts of natural disasters like famine.
NATURAL CALAMITIES
This document defines and provides brief descriptions of major natural disasters:
- Tsunami, flood, drought, storm, and earthquake are listed as major natural disasters.
- A flood is defined as an overflow of water that submerges land, usually caused by river, lake, or ocean overflow.
- An earthquake is defined as the shaking of the Earth's surface from a sudden release of energy, creating seismic waves that can destroy cities.
- A tsunami is defined as a series of waves caused by large volumes of water displacement, often from earthquakes or volcanic eruptions.
Tornado копия
A tornado is a violently rotating column of air that extends from a cumulonimbus cloud to the ground. Most tornadoes are about 250 feet wide and travel a few miles before dissipating, but the strongest can be over 2 miles wide and stay on the ground for over 100 km. A drought is an extended period of below average rainfall that causes water shortages, harming local ecosystems and economies. A typhoon is a tropical cyclone that develops in the northwest Pacific Ocean between 180-100°E.
Natural disasters
This document summarizes several types of natural disasters:
Earthquakes are caused by the sudden release of energy in the Earth's crust, causing shaking and vibration at the surface. While earthquakes rarely directly kill people, secondary events like building collapses and tsunamis can cause loss of life. Floods occur when an overflow of water submerges land, and tsunamis are huge waves caused by undersea earthquakes that can damage coastal areas. Drought is a prolonged period of unusually low rainfall that fails crops and reduces water availability. Tornadoes are violent rotating columns of air that touch both the ground and storm clouds.
Natural Disasters
The document defines and describes several natural hazards and disasters:
Flood is the overflow of water that submerges land not normally covered. Earthquakes are sudden releases of energy in the Earth's crust that create seismic waves. Tornadoes are rotating columns of air in contact with the ground and clouds. Volcanic eruptions violently eject lava, ash, and rock onto the surface. Typhoons are tropical cyclones common to the Northwest Pacific. Avalanches are large, fast-moving masses of snow that can bury people and damage structures. Tsunamis are long ocean waves caused by earthquakes or asteroids that come ashore. Drought is a prolonged period without rainfall causing moisture levels to drop. Hunger
Cyclones as natural hazards
1. Cyclones are large rotating storm systems that form over warm ocean waters and bring powerful winds, heavy rain, and storm surges. They include hurricanes, typhoons, and tropical storms.
2. Cyclones originate from warm ocean waters that evaporate water vapor into the atmosphere, which condenses and releases heat to power the storm as it rotates due to the Coriolis effect.
3. Cyclones can cause devastating damage from their strong winds, heavy rainfall, and storm surges. Advanced warning and tracking systems help prepare communities for cyclones and mitigate their impacts.
Hail
Hail forms in cumulonimbus clouds as rain drops rise and freeze into ice pellets. These pellets grow larger as they are lifted up and down in the clouds, freezing more water onto their surfaces. Large hailstones can fall with great force and cause damage to crops, buildings, vehicles and even livestock. While forecasts can provide some warning, hailstorms are difficult to predict and protective measures like covering crops may help reduce losses when hail threatens. Hail poses a danger and causes harm through its physical impacts during storms.
Hailstorm
Any thunderstorm which produces hail that reaches the ground is known as a hailstorm. Hailstorm is a form of solid precipitation.
Topic: Definition, Causes, Distribution, Impacts, Prevention.
Prepared by Md. Nasim Fardous Zim
https://www.cda.org.bd
Natural disasters Group3
This document summarizes different types of natural disasters connected to water: storms, floods, tsunamis, and heavy rainfall. Storms are strong gusty winds over bodies of water. Floods occur when water overflows river or lake banks or from heavy rainfall, including areal, riverine, and coastal flooding. Tsunamis are series of waves caused by displacement of water, often due to earthquakes. Heavy rainfall consists of water droplets that have condensed from vapor and fall due to gravity, impacting at increasing speeds with larger droplet sizes. All of these natural disasters can cause loss of life or property damage.
Exogenous disasters hail storms
Hailstorms occur when strong thunderstorm updrafts carry water droplets above the freezing level, where they freeze into hailstones. Hailstones grow larger as additional water freezes onto them until they become too heavy to be supported by the updraft and fall to the ground. Hail has the potential to severely damage crops, plants, buildings, vehicles, and can even cause injury or death. Mitigation efforts include educating people on sheltering safely during hailstorms, issuing warnings, and designing buildings to withstand hail impacts in prone regions.
Natural disasters
This document discusses several types of natural disasters:
- Avalanches are rapid flows of snow down slopes that can kill over 150 people worldwide each year, mostly skiers and snowboarders.
- Earthquakes result from the sudden release of energy in the Earth's crust and can range from undetectable to violent enough to propel objects into the air.
- Floods occur when bodies of water overflow their normal boundaries onto normally dry land, posing risks to agriculture, infrastructure, and health.
- Hurricanes are powerful tropical storms that form over warm ocean waters and bring strong winds, heavy rain, and flooding.
Natural Calamities
The document defines and describes four natural calamities: earthquake, tornado, tsunami, and flood. Earthquakes are sudden violent ground shaking caused by crustal or volcanic movements. Tornadoes are destructive rotating funnel clouds under large storms. Tsunamis are large sea waves caused by earthquakes or other disturbances. Floods occur when rivers receive excess water from rain or disasters, causing overflow onto surrounding land.
Disaster management
This document provides summaries of different types of natural disasters:
- Droughts occur in virtually all climates and are second only to hurricanes in economic impacts in the US.
- Earthquakes can range from small to large, with large ones capable of destroying buildings and causing deaths and injuries.
- Floods occur when a river or other body of water receives too much water, overflowing its normal path onto dry land in a flash or due to other events like tsunamis or large storms.
- Tsunamis are generated by underwater disturbances like earthquakes, volcanic eruptions, explosions, landslides, meteor impacts that displace large volumes of water.
Natural disasters
The document summarizes several types of natural disasters:
1) Avalanches are fast moving masses of snow that can reach speeds of 80 mph. The largest recorded avalanche occurred in 1980 when Mount St Helens erupted, sending 2/3 of a cubic mile of material downslope at over 150 mph.
2) Earthquakes occur daily around the world, usually small tremors. The largest since 1900 was a 9.5 quake in Chile in 1960 that killed over 1,600 people and left 2 million homeless.
3) Floods can result from excessive rain, dam ruptures, or rapid ice melt. The deadliest flood was in China in 1931 and killed 2-4 million people.
Exogenous disasters cyclones
Hazards which originate above the surface of the earth (in the atmosphere) are called exogenous hazards.
Natural Hazards - Tornadoes
A tornado is a spinning, violent air column connected to the base of a cumulonimbus cloud. It forms during storms when cold and warm air combine, making the spinning air visible as it approaches the ground. Tornadoes most commonly occur in Tornado Alley in the Great Plains, where flat land allows winds to spiral without obstruction. Several conditions are needed for tornado formation, including a combination of cold, dry air and warm, moist air that creates thunderstorms, as well as wind shear causing wind rotation to change with altitude.
Powerpoint
This document defines and provides details about various natural disasters: earthquakes are caused by slippage of tectonic plates and release energy through waves; landslides involve ground movements like rock falls and slope failures; floods are overflowing of water that submerges normally dry land; volcanoes are openings in the Earth's crust that allow lava and gases to escape; the 2011 Japanese tsunami was the largest and most catastrophic, resulting in over 20,000 deaths and thousands more missing or injured. It defines a tsunami as a series of waves caused by large bodies of water being displaced. The effects of the 2011 Japanese tsunami included over 300,000 people still in temporary housing and most nuclear power plants being closed.
Natural disasters Group4
Natural disasters connected with water can include tsunamis, storms, and floods. A tsunami is a series of waves caused by the displacement of a large volume of water, often triggered by earthquakes, volcanic eruptions, or landslides under the sea. Storms generally lead to severe weather like heavy rain, flooding, lightning, or strong winds that can damage property. A flood is an overflow of water that covers land not usually submerged, which can occur when a river, lake, or rainwater rises and spills outside of normal boundaries.
Hydro metrological hazards
This document defines hydro-meteorological hazards as natural phenomena involving atmospheric, hydrological, or oceanographic processes that can cause loss of life, property damage, economic disruption, or environmental degradation. It provides three examples of hydro-meteorological hazards: floods, which can occur due to heavy rain overwhelming drainage systems; droughts, which are difficult to define but represent temporary climate aberrations; and cyclones, also known as tropical storms or hurricanes, which are intense low-pressure weather systems with winds over 62 kmph.
Natural disasters Group6
This document discusses various natural disasters connected to water. It defines floods as an overflow of water that submerges land, usually due to excessive water in a river, lake, or from heavy rainfall. Drought is defined as an extended period without sufficient water supply. Earthquakes result from a sudden release of energy in the Earth's crust that causes seismic waves. Volcanic eruptions occur when a volcano actively releases lava and gases. Tsunamis are large ocean waves caused by earthquakes, landslides, or volcanic eruptions displacing water. Hurricanes are large storm systems that form over warm ocean waters and bring strong winds and rain.
Hurricanes
A hurricane is an intense tropical storm with high winds exceeding 117km/hr, thunder, lightning, and heavy rainfall. Hurricanes form over warm ocean waters and draw their power from water evaporation. They can have negative impacts like flooding, damaged infrastructure, pollution, and disruption of communication lines and the economy through destroyed crops. However, hurricanes can also have positive effects such as replenishing aquifers, increasing foreign aid and donations for reconstruction, promoting community unity during recovery efforts, and generating employment in the construction industry rebuilding damaged structures.
natural disters
A tornado is a violently rotating column of air that extends from a thunderstorm to the ground. They form where warm moist air meets cold dry air and can reach wind speeds over 300 mph. Most tornadoes last less than 10 minutes and cause extreme damage due to their high winds.
Tropical Cyclones (Science V )
1) Tropical cyclones, also known as typhoons or hurricanes, are large swirling masses of strong winds that form over warm ocean waters and move in a counterclockwise direction in the northern hemisphere.
2) They originate in the doldrums west of oceans and move westward away from the equator, occurring at different times of year in different locations. In the Philippines, they are called "bagyo" and usually occur from September to November.
3) Tropical cyclones are classified based on wind speed, from a tropical depression (up to 63 kph) to a tropical storm (64-118 kph) to a typhoon, which has winds exceeding 118 kph
Science prjt 3
Tsunamis are large waves generated by earthquakes or other disturbances that displace large volumes of water. They can reach beaches in minutes and cause extensive damage. A major 2004 tsunami in Sri Lanka killed over 40,000 people after an earthquake in the Indian Ocean. Hurricanes are violent tropical storms with winds over 74 mph that form over warm ocean waters and move westward. They can only be stopped by land or cooler waters. Floods occur when water overflows river banks or other areas, often due to heavy rain or snowmelt, and can cause billions in damage annually in the US. Drought is a period of unusually dry weather lacking precipitation that can last years and seriously damage crops and water supplies. Tornado
Signs From Earth
Acid rain is caused by emissions of sulfur dioxide and nitrogen oxides reacting with water molecules in the atmosphere to produce acids that can harm plants, animals, and infrastructure through wet deposition. Hurricanes and tornadoes are powerful storm systems - hurricanes form over warm ocean waters and have strong winds while tornadoes are rotating columns of air between the ground and storm clouds. Tsunamis are large sea waves caused by displacement of water in the oceans, usually triggered by earthquakes or volcanic eruptions under the sea. Drought occurs when a region experiences a prolonged shortage of water, while earthquakes are caused by a sudden release of energy in the Earth's crust that generates seismic waves. Global warming is raising temperatures and causing
Project work
This document defines and describes different types of disasters including natural disasters like avalanches, earthquakes, floods, hurricanes, tsunamis, tornadoes, volcanic eruptions, and wildfires. It also covers human-induced disasters caused by things like wars and pollution. For each disaster type, it provides a brief definition, such as an avalanche being a large mass of rock or snow that rapidly moves down a mountain slope, or a tsunami being a huge volume of moving seawater that can destroy buildings from thousands of miles away.
Weather Hazards 1
Tropical storms form over warm ocean waters and move towards land, gaining energy from the heat of the ocean. They are known by different names like hurricanes, cyclones, or typhoons. Hurricanes form when rising warm air causes heavy rain, thunder, lightning and intense low pressure. The low pressure sucks in surrounding air which spirals inward and causes very strong winds. Hurricanes are a hazard due to their strong winds over 200km/h, heavy rainfall that causes flooding, and storm surges that push sea water inland and flood coastal areas. Hurricane Gilbert in 1988 was one of the most intense hurricanes on record, causing over $300 billion in damage and hundreds of deaths across the Caribbean.
Natural disasters
The document discusses several natural disasters including tsunamis, volcanoes, hurricanes, droughts, and earthquakes. It provides definitions and descriptions of each phenomenon. Tsunamis are large waves caused by undersea earthquakes or landslides that can reach heights of 30 meters. Volcanoes form when molten rock rises from below the surface due to tectonic plate movement, and can cause additional disasters when erupting. Hurricanes are large storms formed over warm ocean waters that rotate anti-clockwise and contain strong winds. Drought occurs when a long period passes without rain, preventing crop growth. Earthquakes are sudden releases of stress in the Earth's crust that cause shaking.
Natural disasters (hard)
This document discusses natural disasters such as floods, tornadoes, hurricanes, volcanic eruptions, earthquakes, and droughts. It asks the reader to name natural disasters and describes what types occur in Spain. The document then previews a movie about tornado chasing and asks questions about the effects of tornadoes on towns, the safety of tornado chasing, and the importance of tornado warnings.
Natural disasters by Melvin Muscat, 3.04
Hurricanes are tropical storms characterized by strong winds and heavy rain that form over warm ocean waters. Tornadoes are rotating columns of air that extend from the base of thunderstorms to the ground. Volcanoes form at boundaries where tectonic plates meet or separate, allowing magma and gases to escape the Earth's crust. Tsunamis are a series of powerful ocean waves caused by earthquakes, landslides, or volcanic eruptions that can cause devastating damage to coastal areas.
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Natural disasters Group3
This document summarizes different types of natural disasters connected to water: storms, floods, tsunamis, and heavy rainfall. Storms are strong gusty winds over bodies of water. Floods occur when water overflows river or lake banks or from heavy rainfall, including areal, riverine, and coastal flooding. Tsunamis are series of waves caused by displacement of water, often due to earthquakes. Heavy rainfall consists of water droplets that have condensed from vapor and fall due to gravity, impacting at increasing speeds with larger droplet sizes. All of these natural disasters can cause loss of life or property damage.
Exogenous disasters hail storms
Hailstorms occur when strong thunderstorm updrafts carry water droplets above the freezing level, where they freeze into hailstones. Hailstones grow larger as additional water freezes onto them until they become too heavy to be supported by the updraft and fall to the ground. Hail has the potential to severely damage crops, plants, buildings, vehicles, and can even cause injury or death. Mitigation efforts include educating people on sheltering safely during hailstorms, issuing warnings, and designing buildings to withstand hail impacts in prone regions.
Natural disasters
This document discusses several types of natural disasters:
- Avalanches are rapid flows of snow down slopes that can kill over 150 people worldwide each year, mostly skiers and snowboarders.
- Earthquakes result from the sudden release of energy in the Earth's crust and can range from undetectable to violent enough to propel objects into the air.
- Floods occur when bodies of water overflow their normal boundaries onto normally dry land, posing risks to agriculture, infrastructure, and health.
- Hurricanes are powerful tropical storms that form over warm ocean waters and bring strong winds, heavy rain, and flooding.
Natural Calamities
The document defines and describes four natural calamities: earthquake, tornado, tsunami, and flood. Earthquakes are sudden violent ground shaking caused by crustal or volcanic movements. Tornadoes are destructive rotating funnel clouds under large storms. Tsunamis are large sea waves caused by earthquakes or other disturbances. Floods occur when rivers receive excess water from rain or disasters, causing overflow onto surrounding land.
Disaster management
This document provides summaries of different types of natural disasters:
- Droughts occur in virtually all climates and are second only to hurricanes in economic impacts in the US.
- Earthquakes can range from small to large, with large ones capable of destroying buildings and causing deaths and injuries.
- Floods occur when a river or other body of water receives too much water, overflowing its normal path onto dry land in a flash or due to other events like tsunamis or large storms.
- Tsunamis are generated by underwater disturbances like earthquakes, volcanic eruptions, explosions, landslides, meteor impacts that displace large volumes of water.
Natural disasters
The document summarizes several types of natural disasters:
1) Avalanches are fast moving masses of snow that can reach speeds of 80 mph. The largest recorded avalanche occurred in 1980 when Mount St Helens erupted, sending 2/3 of a cubic mile of material downslope at over 150 mph.
2) Earthquakes occur daily around the world, usually small tremors. The largest since 1900 was a 9.5 quake in Chile in 1960 that killed over 1,600 people and left 2 million homeless.
3) Floods can result from excessive rain, dam ruptures, or rapid ice melt. The deadliest flood was in China in 1931 and killed 2-4 million people.
Exogenous disasters cyclones
Hazards which originate above the surface of the earth (in the atmosphere) are called exogenous hazards.
Natural Hazards - Tornadoes
A tornado is a spinning, violent air column connected to the base of a cumulonimbus cloud. It forms during storms when cold and warm air combine, making the spinning air visible as it approaches the ground. Tornadoes most commonly occur in Tornado Alley in the Great Plains, where flat land allows winds to spiral without obstruction. Several conditions are needed for tornado formation, including a combination of cold, dry air and warm, moist air that creates thunderstorms, as well as wind shear causing wind rotation to change with altitude.
Powerpoint
This document defines and provides details about various natural disasters: earthquakes are caused by slippage of tectonic plates and release energy through waves; landslides involve ground movements like rock falls and slope failures; floods are overflowing of water that submerges normally dry land; volcanoes are openings in the Earth's crust that allow lava and gases to escape; the 2011 Japanese tsunami was the largest and most catastrophic, resulting in over 20,000 deaths and thousands more missing or injured. It defines a tsunami as a series of waves caused by large bodies of water being displaced. The effects of the 2011 Japanese tsunami included over 300,000 people still in temporary housing and most nuclear power plants being closed.
Natural disasters Group4
Natural disasters connected with water can include tsunamis, storms, and floods. A tsunami is a series of waves caused by the displacement of a large volume of water, often triggered by earthquakes, volcanic eruptions, or landslides under the sea. Storms generally lead to severe weather like heavy rain, flooding, lightning, or strong winds that can damage property. A flood is an overflow of water that covers land not usually submerged, which can occur when a river, lake, or rainwater rises and spills outside of normal boundaries.
Hydro metrological hazards
This document defines hydro-meteorological hazards as natural phenomena involving atmospheric, hydrological, or oceanographic processes that can cause loss of life, property damage, economic disruption, or environmental degradation. It provides three examples of hydro-meteorological hazards: floods, which can occur due to heavy rain overwhelming drainage systems; droughts, which are difficult to define but represent temporary climate aberrations; and cyclones, also known as tropical storms or hurricanes, which are intense low-pressure weather systems with winds over 62 kmph.
Natural disasters Group6
This document discusses various natural disasters connected to water. It defines floods as an overflow of water that submerges land, usually due to excessive water in a river, lake, or from heavy rainfall. Drought is defined as an extended period without sufficient water supply. Earthquakes result from a sudden release of energy in the Earth's crust that causes seismic waves. Volcanic eruptions occur when a volcano actively releases lava and gases. Tsunamis are large ocean waves caused by earthquakes, landslides, or volcanic eruptions displacing water. Hurricanes are large storm systems that form over warm ocean waters and bring strong winds and rain.
Hurricanes
A hurricane is an intense tropical storm with high winds exceeding 117km/hr, thunder, lightning, and heavy rainfall. Hurricanes form over warm ocean waters and draw their power from water evaporation. They can have negative impacts like flooding, damaged infrastructure, pollution, and disruption of communication lines and the economy through destroyed crops. However, hurricanes can also have positive effects such as replenishing aquifers, increasing foreign aid and donations for reconstruction, promoting community unity during recovery efforts, and generating employment in the construction industry rebuilding damaged structures.
natural disters
A tornado is a violently rotating column of air that extends from a thunderstorm to the ground. They form where warm moist air meets cold dry air and can reach wind speeds over 300 mph. Most tornadoes last less than 10 minutes and cause extreme damage due to their high winds.
Tropical Cyclones (Science V )
1) Tropical cyclones, also known as typhoons or hurricanes, are large swirling masses of strong winds that form over warm ocean waters and move in a counterclockwise direction in the northern hemisphere.
2) They originate in the doldrums west of oceans and move westward away from the equator, occurring at different times of year in different locations. In the Philippines, they are called "bagyo" and usually occur from September to November.
3) Tropical cyclones are classified based on wind speed, from a tropical depression (up to 63 kph) to a tropical storm (64-118 kph) to a typhoon, which has winds exceeding 118 kph
Science prjt 3
Tsunamis are large waves generated by earthquakes or other disturbances that displace large volumes of water. They can reach beaches in minutes and cause extensive damage. A major 2004 tsunami in Sri Lanka killed over 40,000 people after an earthquake in the Indian Ocean. Hurricanes are violent tropical storms with winds over 74 mph that form over warm ocean waters and move westward. They can only be stopped by land or cooler waters. Floods occur when water overflows river banks or other areas, often due to heavy rain or snowmelt, and can cause billions in damage annually in the US. Drought is a period of unusually dry weather lacking precipitation that can last years and seriously damage crops and water supplies. Tornado
Signs From Earth
Acid rain is caused by emissions of sulfur dioxide and nitrogen oxides reacting with water molecules in the atmosphere to produce acids that can harm plants, animals, and infrastructure through wet deposition. Hurricanes and tornadoes are powerful storm systems - hurricanes form over warm ocean waters and have strong winds while tornadoes are rotating columns of air between the ground and storm clouds. Tsunamis are large sea waves caused by displacement of water in the oceans, usually triggered by earthquakes or volcanic eruptions under the sea. Drought occurs when a region experiences a prolonged shortage of water, while earthquakes are caused by a sudden release of energy in the Earth's crust that generates seismic waves. Global warming is raising temperatures and causing
Project work
This document defines and describes different types of disasters including natural disasters like avalanches, earthquakes, floods, hurricanes, tsunamis, tornadoes, volcanic eruptions, and wildfires. It also covers human-induced disasters caused by things like wars and pollution. For each disaster type, it provides a brief definition, such as an avalanche being a large mass of rock or snow that rapidly moves down a mountain slope, or a tsunami being a huge volume of moving seawater that can destroy buildings from thousands of miles away.
Weather Hazards 1
Tropical storms form over warm ocean waters and move towards land, gaining energy from the heat of the ocean. They are known by different names like hurricanes, cyclones, or typhoons. Hurricanes form when rising warm air causes heavy rain, thunder, lightning and intense low pressure. The low pressure sucks in surrounding air which spirals inward and causes very strong winds. Hurricanes are a hazard due to their strong winds over 200km/h, heavy rainfall that causes flooding, and storm surges that push sea water inland and flood coastal areas. Hurricane Gilbert in 1988 was one of the most intense hurricanes on record, causing over $300 billion in damage and hundreds of deaths across the Caribbean.
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Natural disasters
The document discusses several natural disasters including tsunamis, volcanoes, hurricanes, droughts, and earthquakes. It provides definitions and descriptions of each phenomenon. Tsunamis are large waves caused by undersea earthquakes or landslides that can reach heights of 30 meters. Volcanoes form when molten rock rises from below the surface due to tectonic plate movement, and can cause additional disasters when erupting. Hurricanes are large storms formed over warm ocean waters that rotate anti-clockwise and contain strong winds. Drought occurs when a long period passes without rain, preventing crop growth. Earthquakes are sudden releases of stress in the Earth's crust that cause shaking.
Natural disasters (hard)
This document discusses natural disasters such as floods, tornadoes, hurricanes, volcanic eruptions, earthquakes, and droughts. It asks the reader to name natural disasters and describes what types occur in Spain. The document then previews a movie about tornado chasing and asks questions about the effects of tornadoes on towns, the safety of tornado chasing, and the importance of tornado warnings.
Natural disasters by Melvin Muscat, 3.04
Hurricanes are tropical storms characterized by strong winds and heavy rain that form over warm ocean waters. Tornadoes are rotating columns of air that extend from the base of thunderstorms to the ground. Volcanoes form at boundaries where tectonic plates meet or separate, allowing magma and gases to escape the Earth's crust. Tsunamis are a series of powerful ocean waves caused by earthquakes, landslides, or volcanic eruptions that can cause devastating damage to coastal areas.
Natural disasters
This document discusses different natural disasters and focuses on tsunamis. It states that tsunamis can be caused by volcanoes, earthquakes, or landslides underwater. For volcanoes, an eruption under the sea can break pieces of the volcano that fall into the water and cause pressure increases that result in huge waves. Earthquakes beneath the ocean floor can also displace water and slowly generate enormous tsunami waves. Landslides into bodies of water function similarly by adding pressure from displaced material, forcing water upwards and creating gigantic waves.
Naturaldisasters
Natural disasters are major changes in the Earth that can cause damage through volcanic eruptions, earthquakes, cyclones, avalanches, floods, droughts, and fires. Volcanic eruptions occur when gas and lava burst through openings in the Earth's crust due to pressure from deep inside. Earthquakes are caused by the movement of tectonic plates beneath the surface. Cyclones are powerful, rotating storms that can uproot trees and damage buildings. Avalanches involve snow, ice, and rock rapidly moving down mountains. Floods result from overflowing rivers caused by heavy rain or snowmelt. Drought is a prolonged lack of rain that can last for years. Forest and bush fires start
Natural disaster preparedness
A disaster is a natural or manmade event that results in widespread human loss, loss of livelihood, property, and life. Disasters can be natural, such as floods, volcanic eruptions, earthquakes, or other geologic processes, and cause loss of life or property damage, leaving economic damage. There are four phases to disaster management: preparedness, response, recovery, and prevention. Preparedness involves planning and preparation measures to minimize the effects of a disaster.
Natural disasters
The document discusses linkers and idioms. It defines linkers as words used to join sentences with specific meanings, such as "and", "but", and "so". It provides examples of sentences using different linkers correctly and incorrectly. It then defines idioms as phrases with special meanings not deduced from the individual words, and provides two examples - "A penny saved is a penny earned" and "It always rains on me".
Natural Disasters
This document provides an overview of natural disasters including earthquakes, tsunamis, volcanic eruptions, and tornadoes. It discusses what causes these events, how destructive they can be including historical examples, and what warning systems and precautions exist in hazard-prone areas. Credible online sources were selected using criteria including accuracy, authority, objectivity, currency, and coverage of information.
Man made disasters
Man-made disasters are caused by technological or human factors and result from events like fires, transport accidents, industrial incidents, oil spills, nuclear explosions, and radiation. Examples of man-made disasters include stampedes, fires, transport accidents, industrial accidents, oil spills, nuclear explosions and radiation, and acts of war or terrorism. Precautions must be taken to prevent these events from occurring or mitigate the damage if they do, such as proper building wiring and containment of dangerous chemicals or nuclear materials.
Man made disasters
This document discusses different types of man-made disasters including nuclear accidents, biological disasters, chemical disasters, fires, and epidemics. It notes that man-made disasters are caused by human intent, negligence, or error and can result in significant loss of life and economic damage. The document provides examples of nuclear disasters like atomic and hydrogen bombs. It describes biological disasters as being similar to a "poor man's nuclear bomb" that can kill many. Chemical disasters are caused by irresponsible handling of powerful chemicals. Fires often result from poor wiring or careless use of flammables. Epidemics can spread after disasters if water and sanitation are not maintained.
Manmade Disasters
The document defines different types of disasters including natural disasters like floods and earthquakes, man-made disasters triggered by human activity, and technological disasters caused by industrial accidents or infrastructure failures. It provides examples of specific disaster types such as nuclear disasters from accidents at Chernobyl and Three Mile Island, the Bhopal chemical plant leak, and oil spills. The impacts of disasters can persist for years through conditions like PTSD, depression, and anxiety.
Man made disaters
This presentation is made as school EVS Project to hi-light disasters done by human beings, it throws light on the disaster at Chernobyl formerly in USSR.
Man made disaster
Man-made disasters are caused by human intent, negligence or error. They can be intentional or unintentional and result in loss of life and property as well as long-term psychological impacts. Examples include transportation accidents involving aviation, rail or road travel due to neglect. Common causes are weapons, chemicals that are carelessly handled, ignorance, and illiteracy. Precautions must be taken for different types of disasters like keeping protected from nuclear radiation, avoiding chemical areas, and preventing electrical fires. The 2008 Mumbai attacks were a coordinated terrorist attack across Mumbai that killed 173 people and wounded 308 over four days through shootings and bombings at various locations including train stations, hotels, and a Jewish community center.
Natural Disasters Interactive Powerpoint
The document provides information about various natural disasters including avalanches, earthquakes, hurricanes, landslides, thunderstorms, tornados, tsunamis, and volcanoes. For each type of disaster, it describes what causes it and includes one or more relevant images. It also provides additional resources and links for further information. The document was written by Ben Darin, a 19-year-old studying elementary education, who included his contact information.
Natural disaster powerpoint
Natural disasters can severely injure or kill people and cause immense property damage. In 2010, natural disasters killed 295,000 people and cost insurers $218 billion globally. The 2011 Tsunami and earthquake in Japan killed over 10,000 people, while Hurricane Katrina in 2005 alone caused $81 billion in property damage to New Orleans, flooding 80% of the city under 15 feet of water and reducing the city's population. While natural disasters cannot be prevented, organizations help with relief efforts, rebuilding, and preparing for aftermaths that can include landslides and fires.
Natural disasters
Disasters can be natural or man-made. Natural disasters include cyclones, earthquakes, tornados, volcanic eruptions, tsunamis, floods, wildfires, droughts, avalanches, and landslides. Man-made disasters involve human elements like negligence, intent, or technological failures and include nuclear bombings, acts of terrorism, and oil spills. The document then provides examples and details of some specific major natural and man-made disasters that have occurred throughout history.
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Climatic extremes
Climate Extreme (extreme weather or climate event) refers to the occurrence of a value of a weather or climate variable above (or below) a threshold value near the upper (or lower) ends of the range of observed values of the variable. Extreme weather and climate events, interacting with exposed and vulnerable human and natural systems, can lead to disasters.
Natural Disasters
A tornado is a violently rotating column of air that extends from a cumulonimbus cloud to the ground. Most tornadoes have wind speeds under 110 mph, are 250 feet wide, and travel a few miles before dissipating. However, the strongest can have winds over 300 mph and stretch over 2 miles wide while traveling dozens of miles on the ground.
TORNADOS
Tornadoes are violently rotating columns of air that form during severe thunderstorms. They develop when warm, low-pressure air rises rapidly and condenses into a funnel cloud. Tornadoes are classified based on where they form - over land or water. The most powerful tornadoes can have winds over 300 mph and paths of destruction miles long, while smaller "gustnadoes" form from downdrafts. Tornadoes develop within thunderstorms and follow the path of the storm, appearing to "hop" as the vortex is disturbed and reforms along the way. They are rated based on the original Fujita Scale which classified tornado damage and estimated wind speeds.
Winds storms and cyclones ppt
Cyclones are areas of closed, circular winds rotating clockwise in the Southern Hemisphere and counterclockwise in the Northern Hemisphere around centers of low atmospheric pressure. They form over warm ocean waters and rely on favorable wind patterns, gaining energy from the ocean. Cyclones can cause heavy rain, strong winds, storm surges, and tornadoes, resulting in impacts like flooding, erosion, mudslides and damage to lives and property. The 1999 Odisha cyclone was the strongest ever recorded in the North Indian Ocean with winds of 160 mph, killing about 10,000 people in India.
Winds storms and cyclones
Cyclones are areas of closed, circular winds rotating in the same direction as the Earth. They form over warm ocean waters and rely on favorable wind patterns. The main effects of cyclones include heavy rain, strong winds, storm surges, and tornadoes. Their intensity and location determine the level of destruction. Tornadoes are violently rotating columns of air that extend from the ground to a thunderstorm cloud. They can reach over 300 mph but usually last only a few minutes on the ground. The 1999 Odisha cyclone was the strongest ever recorded in the North Indian Ocean, with winds of 160 mph at its peak. It caused over 10,000 deaths and catastrophic damage in India.
Tornado
A tornado is a violently rotating column of air that extends from a thunderstorm to the ground. Tornadoes come in different shapes and sizes but are typically a visible funnel cloud. Most tornadoes have wind speeds under 110 mph and are about 250 feet wide. Other types of tornadoes include multiple vortex tornadoes, landspouts, and waterspouts. Tornado season varies by region, with the central US experiencing most tornadoes between May and June.
Prepared-by-G2.pptx
This document discusses tropical cyclones and was prepared by a group consisting of 10 members. It defines a tropical cyclone as a rapidly rotating storm system characterized by low pressure, strong winds, and heavy rain from thunderstorms. Tropical cyclones can cause hazards like storm surge, flooding, winds, and tornadoes. The three main types are tropical depressions, tropical storms, and hurricanes. Tropical cyclones impact many areas around the world and cause loss of life and property damage, especially in coastal regions which experience strong winds, flooding, and storm surge.
Presentation4 by Roshan Adhithya
This document defines and provides examples of different types of natural phenomena including:
- Geological phenomena such as mineralogic and lithologic phenomena that are explained by geology.
- Meteorological phenomena such as weather events involving temperature, pressure, and moisture that are studied at various scales.
- Oceanographic phenomena under the sea like tsunamis and ocean currents.
- Specific atmospheric optical phenomena like lenticular clouds and circumhorizontal arcs formed by ice crystals in cirrus clouds.
roshan adhitya 4
This document defines and provides examples of different types of natural phenomena including:
- Geological phenomena such as mineralogic and lithologic phenomena that are explained by geology.
- Meteorological phenomena such as weather events involving temperature, pressure, and moisture that are studied at various scales.
- Oceanographic phenomena under the sea including tsunamis and ocean currents.
- Specific atmospheric optical phenomena like lenticular clouds and circumhorizontal arcs formed by ice crystals in cirrus clouds.
Thunderstorms
This is about thunderstorms and how to be safe in such situation and also about thunderstorms detection.
Tornadoes
Tornadoes form from severe thunderstorms called supercells. As wind swirls into the storm, a funnel forms that spins faster and faster, sucking more air and objects into its extremely low pressure area. Tornadoes can destroy houses, throw objects high into the sky, and rip apart everything in their paths as they touch down across parts of the central US, especially in an area called Tornado Alley. Different types of tornadoes include supercell tornadoes, dust devils, firewhirls, gustnadoes, landspouts, and waterspouts.
Hurricanes & Typhoons
Hurricanes begin over warm ocean waters as clusters of thunderstorms that develop rotating winds due to the Coriolis effect. As the storm strengthens, winds of up to 125 mph circulate around the eye wall with heavy rain and strong winds extending outward. When hurricanes make landfall, they can cause devastating damage through strong winds, heavy rainfall, and storm surges that produce severe coastal flooding. Some of the worst hurricane disasters have destroyed thousands of homes and killed hundreds of people. Global warming may be increasing hurricane activity by creating more regions with warm ocean temperatures suitable for hurricane formation.
Cyclones
Cyclones are large revolving storms caused by winds circulating around a low pressure center. They are classified according to location and scale. Tropical cyclones form over warm tropical waters and have organized thunderstorms and surface winds. They go through formative, mature, and decay stages and can last several weeks, powered by heat from ocean evaporation. The Philippines experiences around 20 typhoons annually from July to September, which often cause heavy damage and loss of life.
WHICH HAS THE GREATER DESTRUCTIVE POTENTIAL MANKIND OR NATURE
While both nature and mankind have destructive potential, natural disasters generally have greater potential due to their massive scale and forces. Earthquakes release seismic energy that can level cities, tornadoes form powerful rotating columns of wind, hurricanes develop as intense tropical storms, tsunamis are massive waves caused by geological disturbances, and droughts or nuclear bombs unleashed by mankind represent localized but still significant threats. Overall, the document suggests that nature's destructive forces such as earthquakes, tornadoes, and hurricanes have greater potential due to their immense scale and power compared to threats from mankind.
Hydrometeorological Hazards
This document discusses various hydrometeorological hazards such as tropical cyclones, thunderstorms, floods, droughts, and more. It provides definitions and descriptions of different types of hazards like tropical cyclones, typhoons, hurricanes, thunderstorms, tornadoes, flash floods, floods, storm surges, El Niño and La Niña. The document also discusses how different hazards are monitored and forecasted using tools like satellites, Doppler radar, and preparedness and mitigation strategies to adopt before, during, and after hazards occur.
Hydrometeorological Hazards
Hydrometeorological hazard is a process or phenomenon of atmospheric, hydrological or oceanographic nature that may cause loss of life, injury or other health impacts, property damage, loss of livelihoods and services, social and economic disruption, or environmental damage.
hydrometeorologicalhazards.pptx
This document defines and describes various hydrometeorological hazards such as tropical cyclones, thunderstorms, floods, droughts, heat waves, cold spells, avalanches, and blizzards. It then focuses on specific hazards like tropical cyclones/typhoons/hurricanes, thunderstorms, tornadoes, flash floods, and floods. For each hazard, the document discusses characteristics, causes, classification (for tropical cyclones), and potential impacts. It also covers monitoring technologies like satellites and Doppler radar. Finally, it provides strategies for preparedness, response, and rehabilitation related to tropical cyclones.
Cyclone
about the formation and causes and impacts of the cyclone formation in the earth. and cyclone formed in the INDIA region whole about the briefly explained about cyclone
Hydrometeorological Hazards.pptx
The document discusses various hydrometeorological hazards such as tropical cyclones, thunderstorms, floods, droughts, and heat waves. It provides descriptions of different hazards, including cyclones, typhoons, floods, storm surges, and tornadoes. The document also outlines preparedness, response, and rehabilitation strategies for hazards like tropical cyclones, thunderstorms, floods, and storm surges. These include developing family plans, securing property, sheltering safely during events, and assisting in recovery efforts after hazards pass.
Tornadoes
Tornadoes form when strong winds within thunderstorms cause water vapor in the air to condense into a funnel cloud. They range in severity from weak land spouts to catastrophic tornadoes over 300 mph wide. Storm chasers carefully study weather data to track conditions favorable for tornado formation and document tornadoes. Safety tips include seeking shelter in interior rooms on the lowest floor of sturdy buildings and protecting your head and body when a tornado threatens.
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Natural disasters
- 2. A tornado is an air mass with high angular speed (2-50 rpm); its lower end is in contact with the surface of the Earth and the upper with a cumulonimbus cloud or, exceptionally, with the base of a cumulus cloud. This is the cyclonic atmospheric phenomenon more energy density of the earth, though of small extent and short duration (from seconds to over an hour).
- 3. Tornadoes come in different shapes and sizes but are generally in the form of a funnel cloud, whose narrow end touches the ground and is usually surrounded by a cloud of debris and dust, at least in its early moments. Most tornadoes have winds reaching speeds between 65 and 180 km / h, measured about 75 meters wide and several kilometers before disappearing move.
- 4. The tornados cause material damages, damaging the own human being. The tornados damage from you hoist and depending the scales can damage horn sky-scraper.
- 5. Also called water spout or waterspout and head of water is a phenomenon that occurs in tropical waters in rainy conditions.
- 6. Are formed at the base cumulus clouds and extend to the sea surface where they collect water spray. The waters hoses are dangerous for ships, airplanes and ground structures . In the Bermuda Triangle it happens often are suspicious of his relation with the mysterious disappearance of ships and airplanes Nombres: Karina Pupiales Steve Oñate