Earth_Science // Atmosphere
METEOROLOGY
CURRENT PRESSURE: 1013 hPa
WIND VECTOR: NW 15kt
Vertical Profile
500km+ // SPACE BOUNDARY
Exosphere
Atoms and molecules escape into space. Satellites orbit here.
85km - 500km // AURORA ZONE
Thermosphere
High energy UV absorption causes temperatures to rise to 2,500°C, though it would feel cold due to thin air.
50km - 85km // METEOR SHIELD
Mesosphere
The coldest layer (-90°C). Most meteors burn up here upon entry.
12km - 50km // OZONE LAYER
Stratosphere
Stable, dry air. Jet aircraft fly here to avoid turbulence. The Ozone Layer protects us from UV radiation.
0km - 12km // BIOSPHERE
Troposphere
Where we live. Contains 75% of the atmosphere's mass and almost all weather phenomena.
Energy Balance
Earth maintains a delicate thermal balance. Solar radiation enters, but some infrared heat is trapped by greenhouse gases.
INCOMING SOLAR
340 W/m²
→
ALBEDO (REFLECTED)
~30%
The Coriolis Effect
Because Earth rotates, moving air is deflected to the right in the Northern Hemisphere and left in the Southern Hemisphere. This spin creates cyclones.
NORTHERN
Counter-Clockwise
SOUTHERN
Clockwise