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1- Weather, 1- Climate
Terms in this set (79)
What is weather? The state of the atmosphere at a given time and place
sinking, warming air (no clouds - night: cold frosty morning, day:
High pressure
warm/sunny)
Another name for high pressure anticyclone
How are anticyclones formed? cool air sinks, cool air warms, cool air cannot condense
rising, cooling air (cloudy - night: humid/wet morning, day:
Low pressure
dull/dark)
Another name for low pressure depression
How are depressions formed? warm air rises over cool air, warm air cools, warm air condenses
How do we measure atmospheric barometer (millibars)
pressure?
-mercury: forced up vacuum of tube with pressure
Reasons for the design of a barometer -aneroid: flexible container expands/contracts in vacuum with
pressure, moves mechanics, needle displays reading
How do we measure humidity? hygrometer (wet and dry bulb) (%)
- dry: actual temp
- wet: saturation (calculate difference)
- muslin in water: evapouration cool wet bulb showing lower
Reasons for the design of a hygrometer
humidity
wet bulb depression: (dry-wet)
relative humidity: (table, depression and dry bulb)
Absolute humidity 100% (dry and wet bulb temp same)
1- Weather, 1- Climate
Terms in this set (79)
What is weather? The state of the atmosphere at a given time and place
sinking, warming air (no clouds - night: cold frosty morning, day:
High pressure
warm/sunny)
Another name for high pressure anticyclone
How are anticyclones formed? cool air sinks, cool air warms, cool air cannot condense
rising, cooling air (cloudy - night: humid/wet morning, day:
Low pressure
dull/dark)
Another name for low pressure depression
How are depressions formed? warm air rises over cool air, warm air cools, warm air condenses
How do we measure atmospheric barometer (millibars)
pressure?
-mercury: forced up vacuum of tube with pressure
Reasons for the design of a barometer -aneroid: flexible container expands/contracts in vacuum with
pressure, moves mechanics, needle displays reading
How do we measure humidity? hygrometer (wet and dry bulb) (%)
- dry: actual temp
- wet: saturation (calculate difference)
- muslin in water: evapouration cool wet bulb showing lower
Reasons for the design of a hygrometer
humidity
wet bulb depression: (dry-wet)
relative humidity: (table, depression and dry bulb)
Absolute humidity 100% (dry and wet bulb temp same)
