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UCSC / Science / OCEA 90 / What is the source of energy for the climate system is heat from the s

# What is the source of energy for the climate system is heat from the s Description

##### Description: These notes are on module 1 which cover heat transfer, atmospheric pressure, Coriolis force, Hadley cell, convection and conduction, pressure gradient force and geostrophic balance.
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MODULE #1 We also discuss several other topics like Name the different organs use for sense.
If you want to learn more check out What do you call a “bond” with an electronegative atom of another molecule?

THE BASICS OF: We also discuss several other topics like Who has tall, weird hair, and very smart?

PROBABILITY, STATISTICS, CIRCULATION

CONCEPTS COVERED:

• Heat transfer
• Atmospheric Pressure
• Coriolis force
• 3 cell model of atmosphere
• geostrophic balance

Heat transfer

• The source of energy for the Climate system is heat from the sun

• The atmosphere and ocean are heated in 3 important ways:

2. Convection
3. Conduction

ELECTROMAGNETIC RADIATION: Don't forget about the age old question of What is the circular flow in supply and demand?

• Travels in the form of perpendicular oscillating electric and magnetic fields

- Electromagnetic Spectrum -

Don't forget about the age old question of What were the two meanings of empires?

• Temperature = measure of the mean kinetic energy of air molecules

• ALL moving objects emit and absorb radiation. If you want to learn more check out What are the four broad categories of resources?

• The intensity and wavelength of the radiation emitted is a strong function of temperature

• A "black body" emits and absorbs radiation equally well at all wavelengths

• The sun is a good example & the intensity of radiation emitted by a black body , E, is a strong function of temperature, T

STEPHAN-BOLTZMANN LAW

FOR A "BLACK BODY":

6 = 5.67× 10^-8 Wm^-2 K^-4.

Stefan-Boltzmann constant

HEATING OF THE ATMOSPHERE:

CONVECTION B CONDUCTION :

Convection = is the transfer of heat by mass movement of fluid.

Conduction = is the transfer of heat from molecule to molecule as a result of molecular collisions.

SOME BASIC PRINCIPLES:

Newtons and how F =ma (Force = mass x acceleration )

• Two important forces in the atmosphere and ocean are :

• Coriolis Force (CF)

PRESSURE :

Pressure force = per unit area

• Surface pressure is due to the force per unit exerted by the weight of air above.
• Warm, light air exerts LESS pressure at Earth surface than cold heavy air.

CORIOLIS EFFECT :

• We sans observe the atmosphere and ocean from the surface of a rotating earth
• As a result objects and fluids moving relative to the earth's surface do not appear to move straight
• Deviations from a straight path imply an acceleration and hence the action of a force. the Coriolis force.
• The magnitude & direction of Coriolis depends on:
1. Latitude of the object
2. The speed of the object
3. The hemisphere the object is in
• in the Northern Hemisphere the CF deflects objects to the right of their initial motion
• In the southern Hemisphere, the CF deflects Objects to the left of their initial motion

GEOSTROPHIC BALANCE:

Geostrophic balance in the Northern Hemisphere

Geostrophic balance in the Southern Hemisphere

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