volcanoz
Published on Nov 20, 2015
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PRESENTATION OUTLINE
DENSITY
Most of the natural disaster can be compared, like how they all can be caused by density. If warm air and cold air meet the warmer air since it's less dense will try to go up. If the warm air run into a cold air mass than since the warm air is less dense it will try to break through the cold air. If the warm air does it can cause things like tornados, like violent storms. But If you put it so that a cold air is under the warm front, there would be maybe a little rain or fog, no big problems.
Photo by markkilner
Also since the atmosphere keep a lot in, the air that come from mexico, and the air from canada can collide, because they came from other directions and can make a really bad disaster.
Also density effects not just the air on the earth, also the insides the earth. Magma that's in the mantel, it can rise up through the crust in eruptions, and after a while a volcano can form. The volcano can erupt, and if it does there are many deadly possibilities. Also in the earth with earthquakes. If a oceanic plate goes over the other, since the plate that goes over is less dense and younger than the other.
Photo by NeilsPhotography
heat tranfor
When an ocean gets hot, some of the hot water evaporates and some of the water stays and can make a hurricane or maybe a tsunami. The hot water that evaporates can go up in the air and can cause it to rain. The rain can then cause flooding. The ground heats the air, and if the warm air runs into a lot of cold air, many different disasters can form the uneven heating.
Photo by VinothChandar
When the sun beats down on the Earth, the sun rays bounce off the water, and the ground absorbs most of the heat. That is also a way that the ground can heat the air, than a warm air pocket can be trapped under cold air, which that can make a tornado. When a volcano erups than the heat of the ash and magma, can change the weather and make many different stroms happen.
Photo by ^ Johnny
Fronts mark the boundary between two air masses. The air masses can have large
temperature contrasts over a short distance on either side of the front. There is often a shift in wind direction across the front as well as changes in temperature and humidity. The type of front depends on both the direction in which the air mass is moving and the characteristics of the air mass. cold front, warm front, stationary front, and occluded front. A tornado can happen in a cold front because of the warm air under the cold air, and then when the warm air brakes free, a tornado forms. Also with hurricanes, but over sea. Enormous ash clouds can form from a volcano, warm and cold sulfur dioxide carries the ash clouds when the volcano erupts. Winter storms are among nature's most impressive weather spectacles. Their combination of heavy snow, freezing rain, and high winds can totally disrupt modern civilization: closing down airports and roads, creating power outages, and downing telephone lines. Winter storms remind us how vulnerable we are to nature's awesome power. storms derive their energy from the clash of two air masses of substantially different temperaturesy and moisture levels. An air mass is a large region above the Earth, usually about 1,000-5,000 km in diameter. Winter storms usually form when an air mass of cold, dry, Canadian air moves south and interacts with a warm, moist air mass moving north from the Gulf of Mexico. The point where these two air masses meet cold air advances and pushes away the warm air, it forms a cold front. When warm air advances, it rides up over the denser, cold air mass to form a warm front. If neither air mass advances, it forms a stationary front.
Photo by Philerooski
Winter storms remind us how vulnerable we are to nature's awesome power. storms derive their energy from the clash of two air masses of substantially different temperaturesy and moisture levels. An air mass is a large region above the Earth, usually about 1,000-5,000 km in diameter. Winter storms usually form when an air mass of cold, dry, Canadian air moves south and interacts with a warm, moist air mass moving north from the Gulf of Mexico. The point where these two air masses meet cold air advances and pushes away the warm air, it forms a cold front. When warm air advances, it rides up over the denser, cold air mass to form a warm front. If neither air mass advances, it forms a stationary front.
Photo by nosha
