Weather Unit Flashcards
Weather
the condition of the Earth’s atmosphere at a particular time and place.
Greenhouse gas
gasses in the atmosphere that trap heat.
Greenhouse effect
The process by which heat is trapped in the atmosphere by water vapor, carbon dioxide, methane, and other gasses that form “a blanket” around the Earth.
Ozone
a form of oxygen that has 3 oxygen atoms in each molecule instead of the usual 2.
Wind
The horizontal movement of air from an area of high pressure to an area of lower pressure.
Jet streams
bands of high-speed winds about 10 kilometers above Earth’s surface.
Monsoons
Sea and land breezes over a large region that change direction with the seasons. Is an example of a local wind.
Coriolis Effect
The way Earth’s rotation makes winds in the Northern Hemisphere curve to the right and winds in the Southern Hemisphere curve to the left.
Wind-chill factor
Increased cooling caused by the wind.
Sea breeze
The flow of air from an ocean or lake to the land.
Land breeze
The flow of air from land to a body of water.
Global winds
Winds that blow steadily from specific directions over long distances.
Air mass
A huge body of air that has similar temperature, pressure, and humidity throughout.
Front
the area where air masses meet and do not mix.
What are the layers of the atmosphere starting at Earth?
- Troposphere
- Stratosphere
- Mesosphere
- Thermosphere
What happens in the troposphere?
The troposphere is where the weather occurs.
What happens in the stratosphere?
The stratosphere is where the ozone layer is located.
What happens in the mesosphere?
The mesosphere is where meteoroids burn up.
What happens in the thermosphere?
The thermosphere is broken up into 2 zones, the ionosphere and the exosphere. The ionosphere is where the northern lights (aurora borealis) occur. The exosphere is where satellites orbit.
Cirro
high
Alto
mid
Stratus
sheet or blanket
cumulo
puffs
Nimbo
rain, usually the bigger more intimidating clouds