Layers of the Atmosphere
What layer carries weather
Troposphere
How does High and Low pressure systems flow
High pressure moves clockwise, Low pressure moves counterclockwise
Types of air masses
Continental Polar, Maritime Polar, Continental Tropical, Maritime Tropical
Northeasterly/ Southeasterly Trade Winds
Winds that move east to west
Maritime
On the sea, humid wet area
Where is the Ozone Layer Located
Stratosphere
What kind of weather conditions does each pressure produce
high pressure produces sunny clear skies with cool air, low pressure produces Rainy cloudy skies with warm air
Types of Fronts
Cold front, warm front, Occluded Fronts, Stationary front
Air Pressure
the force exerted on a surface by the air above it as gravity pulls it to Earth
Continental
Dry area of land
Characteristics of the Troposphere
Temperature decrease with altitude, Has weather, Closest layer of the atmosphere to Earth, Air pressure decreases with altitude , Contains most of Earth’s air
Properties of Cold vs Warm Air - Amount of energy, density, distance between molecules
Cold air is when molecules are compact and more dense, lower energy; high pressure and warm air is when there spread out and less dense, higher energy, low pressure
Characteristics of Cold front
Cold Front fastest moving front around 24 hrs or less, Forms when a colder air mass moves toward a warmer air mass, forces the warm air above the cold air, this creates a steep slope, Quick drop in air pressure from steep slope, Brings, Large rain clouds, severe storms, cooler temperatures.
Prevailing Westerlies
Winds that blow west to east
Tropical
Warmer climate
What is the Role of the Ozone Layer
Absorb UV lights protecting us from the harmful UV light rays
How does temperature change with each system
High pressure produces cool air while Low pressure produces warm air
Characteristics of warm front
Warm Front slower 24-36 hrs, Forms when a warmer air mass moves toward a cooler air mass, As the warm air rises, water vapor condenses and moderate precipitation,and often occurs due to low slope. Brings warm temps, steady precipitation, wind
Polar Easterlies
Winds that move east to west
Isobars
Circles on the map connecting or marking equal places of air pressure.
How does the temperature difference in the Troposphere help create convection and weather
The temperature in the Troposphere decreases with height, the closer to the Earth’s surface the warmer it is. As the Sun's rays hit Earth’s surface the air warms up and rises, since warm air carries water vapor, as it rises it begins to cool and condense forming clouds which creates weather.
How does wind flow
Large gusts of wind hit Earth’s surface, since it can’t penetrate the surface the air begins to spread out into different pressures such as low and high pressure. The High pressure begins feeding the low pressure as the high pressure moves clockwise while the low pressure moves counterclockwise
Characteristics of occluded front
Occluded Front 12-24 hrs depending on speed of cold ar catching up to the warm air, Occurs when a cold front catches up to a warm front, This will force the warm air above the two cold air masses.Brings: Moderate to severe precipitation, Possible thunderstorms, Clear and dry skys after it passes with cooler air
Stationary Front
48-72 hr or more, Forms when the boundary between two air masses stalls, Last for several days, Brings, cloudy skies, light precipitation, little wind
Wind
The movement of air in the form of a current, blowing from a particular direction.