Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
CE Vocabulary 5 Weather Front A boundary that forms when air masses meet that have different temperature, pressure, and humidity conditions. Sea breeze The flow of air from water to land. Land breeze The flow of air from land to water. Jet stream A long, narrow current of very strong winds in the upper troposphere. Convection The process by which heat moves through air or water. Convection current A circulating flow of air or water resulting from temperature differences; also called a convection cell. Trade winds Global winds that flow toward the equator, turning west as they go. Westerlies Global winds that flow from the west to the east. CE Vocabulary 5 Global winds Giant convection currents that circulate within the Northern and Southern Hemispheres of the earth. Cold front The leading edge of a cold air mass. It occurs when a cold air mass pushes a warm air mass ahead of it. Stationary front A boundary that occurs when two air masses move close to one another, but neither has enough force to move the other; they both remain fixed in place. Occluded front A boundary that occurs when both a cold and a cool air mass collide with a warm air mass, which becomes trapped and lifted between them. Atmosphere The thin blanket of gases that surrounds the earth. Troposphere The layer of the atmosphere closest to the earth, in which air moves in all directions. It is where most of the earth’s weather takes place. Ozone layer A part of the stratosphere that contains a special form of oxygen (O₃) that traps the sun’s harmful ultraviolet radiation and keeps it from reaching the troposphere.