Notes
Page 1
-weather occurs in the troposphere
-atmosphere consists of nitrogen, oxygen, carbon dioxide, and water vapor
-layers of atmosphere: troposphere, stratosphere, mesosphere, and thermosphere
-atmosphere consists of nitrogen, oxygen, carbon dioxide, and water vapor
-layers of atmosphere: troposphere, stratosphere, mesosphere, and thermosphere
Page 2
-wind is air being moved from a high to low pressure
-the greater difference between pressures, the faster the wind moves
-the earth's tilt causes uneven heating which causes different pressures
-convection is the sinking of cool air and the rising of warm air
-when air is heated, it expands and takes up more space
-the greater difference between pressures, the faster the wind moves
-the earth's tilt causes uneven heating which causes different pressures
-convection is the sinking of cool air and the rising of warm air
-when air is heated, it expands and takes up more space
Page 3
How do the following pictures relate to density?
The first picture relates to density because the less dense, warm air on land rises which allows the more dense, cooler air from the sea to push underneath and cause breeze.
The second picture is the same thing but flipped. The less dense, warmer sea air rises and the cooler air from the land pushes underneath causing breeze.
This is because land heats and cools very quickly while water takes a very long time.
The second picture is the same thing but flipped. The less dense, warmer sea air rises and the cooler air from the land pushes underneath causing breeze.
This is because land heats and cools very quickly while water takes a very long time.
Page 4
1. The jet stream is a fast moving current of air that can be found in the upper part of the troposphere. These are winds that continue year round due to the earth's rotation.
2. The polar jet stream is important to Texas because it brings in cold air from Canada during the winter.
2. The polar jet stream is important to Texas because it brings in cold air from Canada during the winter.
Pages 5+6
-air pressure changes as the density of air changes
-as cooler air sinks, it exerts more pressure on the area beneath it
-the area moves from a high pressure area to a low pressure area, generating wind
-as cooler air sinks, it exerts more pressure on the area beneath it
-the area moves from a high pressure area to a low pressure area, generating wind
-high pressure winds blow out, low pressure areas blow in
-large air masses of high and low pressure are often responsible for the weather that occurs in an area
-isobars are lines on a weather map that indicate areas with the same air pressure
-isobars are lines on a weather map that indicate areas with the same air pressure
-sinking air in a high pressure system brings in cool, dry weather
-rising air in a low pressure system brings in cloud