{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}


WL7_8Atmos-Ocean_Circ_web - Atmospheric Oceanic...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
1/15/09 1 Atmospheric & Oceanic Circulations So far this week…. Humidity, Adiabatic Processes, Clouds & Precip Formation Now…. Atmospheric Pressure Winds and Pressure Gradients Global Patterns of Wind and Pressure Ocean Currents Atmospheric Pressure Pressure = Force per Unit Area Metric unit = Pascal (Pa) – @ sea level = 101,320 Pa (or 101.3 kPa) – older unit = millibar (= 100 Pa) – (therefore, pressure @ sea level = 1013.2 mb) Pressure Changes with Altitude Atmos pressure ’s with altitude Winds & Pressure Gradients Wind = horizontal motion of air across earth’s surface horizontal mvmt dominates (small vertical component called turbulence) Wind produced by diffs in air pressure from one location to another both wind speed and direction are important wind direction given based on where wind is coming from
Background image of page 1

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

View Full Document Right Arrow Icon
1/15/09 2 4 Forces Drive Speed & Direction of Wind: Earth’s gravitational force Pressure Gradient force Coriolis force Friction force Wind
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

Page1 / 4

WL7_8Atmos-Ocean_Circ_web - Atmospheric Oceanic...

This preview shows document pages 1 - 3. Sign up to view the full document.

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