The atmosphere is composed of nitrogen, carbon dioxide, oxygen, water vapor, and other gases. The troposphere which is the layer closest to the surface of the earth is where this weather occurs. The farther you go up in the layers of the atmosphere the temperature range gets more extreme.
When air is heated, it expands and takes up more space. Wind is air moving from an area of high pressure to an area of low pressure. If all the earth's surface had the same air pressure everywhere, there would be no wind.
When the cold air comes in from the sea, it pushes the less dense warm air upwards. This makes an area more cold since the air is farther away from the ground. When cold air comes from the land, it pushes the warm sea air upwards from the sea. These two cycles interact because during the night, cold air is pushed into the ocean and during the day, the cold air pushes all the warm air off the land. Therefore, temperatures drop as it gets later in the night. THE WINDS REVERSE DURING THE DAY AND NIGHT AND THE WATER TAKES LONGER TO HEAT UP!
A jet stream is a fast moving current of air located in the upper part of the troposphere. They form at the boundaries of air masses with different temperatures. Jet streams usually move from west to east because of the earth's rotation. A jet stream is located in the upper part of the troposphere. Sea breezes are location on the lower part. Jet streams have a specific direction in which they move (west to east) while sea breezes are affected by the day and night cycles. Jet streams bring in different temperature air.
Air pressure is the weight of air pressing down on us. This force exists everywhere. This changes as the density of the air changes. Matter with a greater density tends to sink in a fluid such as air.
Air masses are very large sections of the troposphere. They move across earth's surface and are responsible for the weather that occurs in that area. Isobars are lines on a weather map that indicate areas with the same air pressure. Cool, sinking air in a high pressure system usually brings dry clear weather. In a low pressure system, the warm, moist air brings clouds and rain. Movement of these air masses causes different weather in different areas.
When air is heated, it expands and takes up more space. Wind is air moving from an area of high pressure to an area of low pressure. If all the earth's surface had the same air pressure everywhere, there would be no wind.
When the cold air comes in from the sea, it pushes the less dense warm air upwards. This makes an area more cold since the air is farther away from the ground. When cold air comes from the land, it pushes the warm sea air upwards from the sea. These two cycles interact because during the night, cold air is pushed into the ocean and during the day, the cold air pushes all the warm air off the land. Therefore, temperatures drop as it gets later in the night. THE WINDS REVERSE DURING THE DAY AND NIGHT AND THE WATER TAKES LONGER TO HEAT UP!
A jet stream is a fast moving current of air located in the upper part of the troposphere. They form at the boundaries of air masses with different temperatures. Jet streams usually move from west to east because of the earth's rotation. A jet stream is located in the upper part of the troposphere. Sea breezes are location on the lower part. Jet streams have a specific direction in which they move (west to east) while sea breezes are affected by the day and night cycles. Jet streams bring in different temperature air.
Air pressure is the weight of air pressing down on us. This force exists everywhere. This changes as the density of the air changes. Matter with a greater density tends to sink in a fluid such as air.
Air masses are very large sections of the troposphere. They move across earth's surface and are responsible for the weather that occurs in that area. Isobars are lines on a weather map that indicate areas with the same air pressure. Cool, sinking air in a high pressure system usually brings dry clear weather. In a low pressure system, the warm, moist air brings clouds and rain. Movement of these air masses causes different weather in different areas.