Air Masses and Fronts
An air mass.
What is a large volume of air that has a certain temperature and moisture content?
The weather high pressure causes.
What is sunny weather?
Surface currents.
What are horizontal, streamlike movements of water that are at or near the surface of the ocean?
What are movements of ocean water far below the surface?
An event that occurs every 2-12 years.
What is El Nino?
A front.
What is when 2 or more air masses meet and one overtakes the other?
The weather low pressure causes.
What is clouds and precipitation?
The 3 factors that affect surface currents.
What are the wind, the Coriolis Effect, and continental deflection?
What is water density?
The line that separates the Northern Hemisphere and Southern Hemisphere.
What is the equator?
The 4 types of fronts.
What are cold fronts, warm fronts, occluded fronts, and stationary fronts?
The type of front that is represented by a blue line curved up with triangles on the bottom.
What is a cold front?
The Coriolis Effect and how it changes the surface currents.
What is the direction of the currents and wind based on the rotation of the Earth, it makes the wind and currents move at a curve?
What is decreasing temperature?
An event that sometimes comes after El Nino.
What is La Nina?
The way air masses are classified.
What is by moisture content (c or m) and temperature (P or T)?
The type of front that is represented by a red line curved down with semi-circles on the top.
What is a warm front?
Continental deflection and how it affects surface currents.
What is how currents change directions when meeting land, making them move on a curved path?
The second way to increase density.
The line that passes through 0o longitude.
What is the Prime Merridian?
The kinds of weather that warm and cold fronts bring.
What is cold fronts bring heavy precipitation and then colder temperatures and warm fronts bring light precipitation and then warmer temperatures?
The way a stationary front is shown on a map.
What is line curved up with semi-circles on the top and triangles on the bottom?
The direction that one of the largest surface currents, The Gulf Stream, flows in.
What is Northeast?
The third way to increase density.
What is increasing salinity through evaporation?
A cyclone.
What is an area of the atmosphere that has lower pressure than the surrounding air?