Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
CHAPTER11science
vacab
| Question | Answer |
|---|---|
| A large body of air covering hundreds or thousands of square kilometers that has a relatively uniform temperature, pressure, and humidity. | air mass |
| A region with relatively uniform temperature and humidity over which air masses form. | source region |
| An air mass that is warmer than the surface over which it moves. | warm air mass |
| A zone of contact between two dissimilar air masses where neither is advancing. It usually results in no change in the weather for several days. | stationary front |
| The advancing surface of a warm air mass as it pushes against and over a cooler air mass. | warm front |
| The advancing surface of a cold air mass as it moves under a warmer air mass. | cold front |
| A line of violent thunderstorms that sometimes accompanies an advancing cold front. | squall line |
| A front formed when a cool air mass and a rapidly moving cold air mass trap a warm air mass between them. The warm air mass is lifted, losing all contact with the ground. | occluded front |
| A regional wind system that reverses periodically, alternately bringing wet and dry seasons. | monsoon |
| The horizontal force exerted on a mass of air that has a higher pressure on one side than the other. | pressure gradient force |
| A high-altitude wind that is controlled by the relative influence of the pressure gradient force and the coriolis effect. | geostrophic wind |
| In general, a weather system centered on a low-pressure area surrounded by a wind circulation pattern spiraling counterclockwise in the northern hemisphere and clockwise in the southern hemisphere. A hurricane in the southwestern pacific and indian ocean | cyclone |
| An area of relatively higher atmospheric pressure. It typically contains a clockwise-rotating wind system in the northern hemisphere. | anticyclone |
| A high-speed meandering wind current, usually flowing from west to east ataltitudes of 15 to 25km. | jet stream |
| A breeze that blows onshore from the ocean, usually during the daytime. | sea breeze |
| A breeze that blows from shore to sea, usually at night. | land breeze |
| A breeze that blows up the mountainside fromthe vally when air high on the mountian heats and rises, occurs in late in the day. | vally breeze |
| A breeze that flows down the mountain into the vally at night that is caused by cooler air at higher elevations. | mountain breeze |
| Constent winds exstending from the subtropical highs tword the equator, turned by the coriolis effect into easterlies. | trade winds |
| Winds blowing consistently from southwest to northwest between 30 to 40 degrees north and south laditude. | prevailing westerlies |
| Winds blowing consisently from northeast to southwest from the northern polor region. | polar easterlies |
| Apermanent low-pressure belt of usually windless air near the equator caused by the vertical rising warm air. | doldrums |
| bands of nearly permanet high presure at aperoximently 30 degrees north or south latitude. | horse latitudes |
| the prevailing nearly permanet low presure at aperoximently 60 degrees north or south latitude. | subpolar low |
| An area of high atmospheric presure at either pole caused by subsiding cold air. | polar high |
| A rainstorm that includes lightnig and thunder. | thunderstorm |
| A towering cumulonimbous cloud that builds rapidly to highaltitudes brings heavy rain, snow, or hail. | thunderhead |
| An electric dischagedthat occers between clods or clods and ground. | lightning |
| prior to a lightnig strok , zigzag colomb of high ionived air. | stepped leader |
| a lightnig discharg from the grount to a clod along the ionized path taken by th origonal stike from cloud to ground. | return stroke |
| lightnig consisting of branches connected to the main stroke. | forked lightning |
| A violent narrow rotating funnal shaped local windstorm containing the highest wind speeds measured, extending down from a cumulonimbus cloud. | tornado |
| A tornado at sea | waterspout |
| In the atolantic and east pacific oceans a strong cyclone storm. | hurricane |
| hurricains in the western pacific and idian ocean. | typhoon |
| The cicular of low pressure in a hurricane that is charicterized by few clouds relitive calm vertical movement. | eye |
| The larger than normal serface waves outward from a moveng small huricane. | strom swell |
| large serge or increase under a hurican on the ocean. | storm surge |
| A metal rod attached to thw highest point of a bilding that prevents damige from lightning. | lightning rod |
Created by:
THEMrs.Bieber
Popular Earth Science sets