1. How Does Heat Energy Travel and Insolation
RRB

2. Worksheet (back) Insolation = INcoming SOLar RadiATION
Angle of Insolation: Angle of the sun above the horizon
Duration of Insolation: Length of time from sunrise to sunset that the sun is in the sky
Absorption of Insolation: Taking in of energy 
Reflection of Insolation: Process in which energy waves bounce off a surface or interface/boundary
Terrestrial Radiation: the longer infrared heat waves radiated by Earth

3. The strength of insolation depends on: the angle of insolation, the duration of insolation, and the type of surface the insolation strikes
The noon sun has the greatest angle of insolation
In the Northern Hemisphere the lowest noontime angle of insolation is reached at the winter solstice
Vertical ray: sunlight that strikes Earth’s surface at an angle of 90 degrees, which occurs everyday at noon somewhere in the tropics

4. Duration of insolation (in notes)
Generally, as the angle of insolation and the duration of insolation increases, temperatures at Earth’s surface increase
Duration of insolation varies greatly with latitude

5. Absoprtion of Insolation by the Atmosphere (in notes)
Earth absorbs most of the sunlight that falls on it
Ozone and other gases in the upper atmosphere absorb high-energy radiation, such as X rays and gamma rays
Long-wave radiation, such as infrared, is absorbed by water and carbon dioxide
Some absorbed energy is changed into heat waves that reradiate back into the atmosphere

7. Second Worksheet… El Nino
Under normal conditions in the Pacific, water moves upward from deep ocean currents along western S.A.
This cold water is rich in oxygen and nutrients
When there is less upward movement and the warmer surface is not as productive, there are less fish/plants
Usually happens around Christmas
It can create extra rainfall in the Eastern Pacific and droughts in the Western Pacific
El Nino shows the strong influence of oceans on the atmosphere

8. Reflection of Insolation
Clouds reflect roughly half of the light falling on them
Ice and snow reflect a large amount of insolation and absorb very little
Black road surfaces generally absorb over 90% of the solar energy
Calm water is a good reflector when the sun is low, but absorbs most of the sunlight when the sun is high in the sky

9. Terrestrial radiation
Energy waves sent back into space from Earth’s surface are longer in wavelength than energy waves in the range of visible light emitted from the sun
Longer infrared heat waves are absorbed by gases such as CO2 and water vapor
This traps the heat and is known as the greenhouse effect
Without the greenhouse effect, Earth would be too cold for most familiar forms of life
Too much greenhouse effect can make it too hot

10. Greenhouse effect
We are adding greenhouse gases to the atmosphere by cutting down forests, burning fossil fuels, and increasing methane amounts (by-product of petroleum and decaying organic matter)

12. Insolation-Temperature lag
A time lag exists between the time of greatest intensity of insolation and the highest air temperature
This occurs because insolation energy is first absorbed by Earth’s surface and then re- reradiated as heat energy that warms the air
At noon- incoming radiation reaches a max, and the ground continues to absorb energy for 2-3 more hours than it radiates
Once Earth radiates more than it receives from the sun, Earth cools
The daily high temp. usually happens around 2-3 pm

13. Greenhouse Effect According to al gore