Atmospheric Circulation

Atmospheric Circulation - flow poleward. At the poles,...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Atmospheric Circulation SUMMARY OF CORIOLIS EFFECT Northern hemisphere: Moving bodies deflected to the right of the direction of travel. Southern hemisphere: Moving bodies deflected to the left of the direction of travel. Coriolis Effect affects all freely-moving objects o Air masses o Airplanes o Ocean current o Missles WIND STRESS CAUSES SURFACE WATER MOVEMENT A wind blowing for 10 hours across the ocean will cause the surface waters to flow at about 2% of the wind speed. o Stronger winds cause stronger currents BASIS OF ATMOSPHERIC CIRCULATION Air cools aloft by expansion: o “Aidiabatic Decompression” o Cooled air is denser sinks Sinking air is cooled by depression Solar energy heats the Earth’s surface: warmed air rises WIND PATTERNS ON EARTH If Earth did not rotate: Air warmed at the equator would rise…diverge aloft…and
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: flow poleward. At the poles, convergent air would descenddiverge at the surface, and flow toward the equator. RESULTANT WIND PATTERNS Surface winds and windless zones Winds are named according to wind direction. o From equator, moist air rises towards both poles o 30 N and S, dry air sinking o 60 N and S, moist air rises towards both poles o 90 N and S, dry air sinking NANSENS DISCOVERIES No arctic continent Continuous trans-Arctic current Early evidence for thermohaline circulation: water with Atlantic Ocean FRANKLINS 1786 MAP OF THE GULF STREAM Based on ships logs: travel times between America and Europe....
View Full Document

Page1 / 2

Atmospheric Circulation - flow poleward. At the poles,...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online