MET - Atmospheric Pressure Flashcards
What does it mean when the isobars are closer together?
It means that the wind speed is quicker
What is the formula for Surface Pressure?
The formula for Surface Pressure is:
Pressure = Force / Area
Which pressure area would have troughs?
A low pressure area would have a trough
What does it mean when the Isobars are spread out from each other?
When isobars are spread out, it means it is a high pressure area.
How does a mercury barometer work?
It uses Mercury to measure pressure.
What measurement is used for Pressure?
Hectopascals (hPa)
How does an Aneroid Barometer work?
It reacts to changes in pressure by expanding/contracting.
High P -> Contracts -> Goes Clockwise
Low P -> Expands -> Goes Anti-Clockwise
1 hPa = ? mb (millibar)
1 hPa = 1 mb
Air tries to flow from ____ pressure to ____ pressure.
- High
2. Low
