Reading/ Notes
--Surrounding the earth is the atmosphere which is composed of many layers that include, CO2, H2O, Nitrogen, and Oxygen.
--As air heats up, it looses density and expands, causing the air to take up more space and rise higher. (picture below)
--As air heats up, it looses density and expands, causing the air to take up more space and rise higher. (picture below)
--Wind is air that moves back and forth from high and low pressure areas. And the faster the air moves, the greater the distance is between the two pressures.
--The sun has irregular heating of earth's surface, which is why there is a pressure difference.
--The sun has irregular heating of earth's surface, which is why there is a pressure difference.
What do the pictures below have to do with density?
The pictures below demonstrate the cool more dense air pushing up the warm, less dense air. During the day the cold air is moving, but the warm air rises up, and at night the cold air moves the opposite direction, but the warm air still rises up. The land is colder at night because it takes less time to cool down, so the cold air moves to the ocean. During the day, the water is colder because it takes more time to heat up, so the cold ar moves to the land. Water takes more time to heat up and cool down.
The pictures below demonstrate the cool more dense air pushing up the warm, less dense air. During the day the cold air is moving, but the warm air rises up, and at night the cold air moves the opposite direction, but the warm air still rises up. The land is colder at night because it takes less time to cool down, so the cold air moves to the ocean. During the day, the water is colder because it takes more time to heat up, so the cold ar moves to the land. Water takes more time to heat up and cool down.
A jet stream is a faster current of air that is located in the higher part of the troposphere. Their most common direction is from west to east because of earth's rotation. They can influence weather because they can push the cold or warm air to another location.
(picture below) In Texas, the Winter jet stream is important because it can bring colder air to our climate, which is where the name "cold front" is from, because cold air is coming in with a jet stream. In the summer, Texas is really hot, because there is no cold air blowing towards us, creating a hot environment with very little wind. (picture below)
(picture below) In Texas, the Winter jet stream is important because it can bring colder air to our climate, which is where the name "cold front" is from, because cold air is coming in with a jet stream. In the summer, Texas is really hot, because there is no cold air blowing towards us, creating a hot environment with very little wind. (picture below)
The weight of pressure against us is air pressure. So, when cold air compacts, it sinks and puts a higher pressure on the land. But, warm air is lighter and expands, so it rises and puts less pressure on the land. The cold air is more dense, while warm air is less dense. So, when there is cold air in an environment it pushes the warm air up, causing cold weather and a high pressure area. And when they mix, you get wind, because the air is blowing away from each other. (picture below)
Very large section of the troposphere are air masses. The large masses of high and low pressure systems move around over earth's surface, and cause the weather to change. Lines on a weather map that represent the same pressure are called Isobars, and they help predict wind speeds. Cold air brings clear skies because there is no space for moisture to be there, because the air is so dense. But, warm air is a low pressure system, so it brings clouds and rain. In a low pressure system, you can find all sorts of tropical storms along with tornados, hurricanes, and stormy weather. So, the air masses' movement changes the weather in an area, because it changes the amount of pressure in an environment.