Shared Flashcard Set

Details

Global Warming
N/A
21
Environmental Studies
Undergraduate 1
12/02/2009

Additional Environmental Studies Flashcards

 


 

Cards

Term
The troposphere is a turbulent region because....
Definition
it is mainly heated by the sun's energy
Term

In the troposphere,

temperature ________ when 

altitude _________. So the lower layer is _____ dense than the upper

Definition

decreases

increases

less

Term

 

Where does the weather and global warming take place?

Definition

 

Troposphere

Term
What forms of light are emitted by the sun?
Definition

 

UV, visible, and IR

Term
___ % of incoming solar radiation is reflected by the earth atmosphere system (clouds)
Definition

 

30

Term

 

____% of incoming solar radiation is absorbed

Definition

 

70

Term

 

What types of radiation are absorbed by the EAS?

Definition

 

UV and visible

Term

 

Radiation emitted by the EAS is 

entirely ______

Definition

 

IR radiation

Term

An _______ in Greenhouse Gases

in the atmosphere

_______ the amount of IR radiation

Definition

 

increase

decreases

Term
GHG ______ IR radiation that is being emitted to space by Earth's surface
Definition

 

absorbs

Term

 

Greenhouse Effect

Definition

 

A phenomenon where the earth's atmosphere traps radiation emitted by Earth's Surface

Term
What are natural examples of CO2 ?
Definition
Volcanic eruptions, animals, forest, and grassfires
Term

Water vapor is an excellent 

__________ absorber

Definition

 

IR radiation

Term
What is the dual role of clouds?
Definition

 

The reflect and absorb radiation

Term

 

What is the Stefan-Boltzman Law?

Definition

The intensity of radiation (light) emitted by an object is proportional to the 4th power of the temp (K)

of the radiating object

Term

 

What is the formula for the 

Stefan-Boltzman Law?

Definition

 

I= cT4

Term

 

What is the equilibrium temp of the EAS?

Definition

 

254K

colder than avg. surface temp of earth, which is 288K

Term
What is the difference between the equilibrium temp. of the EAS and the avg. global temp of earth?
Definition

 

34K

Term

What is the Avg.

Effective Radiating Level?

(Ave ERL)

Definition
Emission of radiation taking place somewhere in atmosphere
Term

How far above the earth surface is the Ave. ERL?

 

Definition

5.2 km

in the troposphere

Term
Why is the Ave ERL located in the atmosphere?
Definition
Because the atmosphere is opaque to IR radiation
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