1. Fate of solar radiation on earth.
C.O.  You’ll know how solar radiation is absorbed by the earth & how climates are affected.
L.O.  You’ll compare and contrast the heating of land and water by gathering and recording data in a lab.
Weekend weather woes.
Fate of solar radiation on earth.
Water vs Land Heating experiment

2. How does the sun’s radiation Transfer Heat to Earth?
Solar Radiation – Travels in all directions from it’s source (the sun) & and it can do so without needing anything to travel through!

3. How does the sun’s radiation Transfer Heat to Earth?
Solar Radiation – Our eyes can only see the VISIBLE LIGHT spectrum between 400nm and 700nm wavelengths. NASA uses telescopes that record longer and shorter wavelengths that we cannot see and has a computer apply colors based on the strength of the signal. The computerized coloring can “see” what the sun is doing.

4. Here’s a false color photo of what the sun looks like as viewed through the extreme Ultra Violet wavelength. Reds are relatively cool (about 60,000 Kelvin, or 107,540 F); blues and greens are hotter (greater than 1 million Kelvin, or 1,799,540 F).

5. Fate of incoming Solar Radiation
So What happens to Solar Radiation after it travels from the Sun to Earth???
1. Some energy is absorbed by earth and clouds (70%).
2. Some energy is reflected back to the atmosphere (25%).
3. Some energy is scattered (light rays get weaker) (5%) +
Fate of incoming Solar Radiation
5% scattered to space by atmosphere.
20% of incoming radiation is reflected off clouds.
5% reflected from land-sea surface
20% of radiation absorbed by clouds and atmosphere
50% of radiation absorbed by land and sea

6. Scattering of light on small dust particles and gas molecules makes the daytime sky blue and sunsets red.

7. Scattering of light on small dust particles and gas molecules makes the daytime sky blue and sunsets red.
Sunset scattering of light by forest fire smoke. Leavitt Lake, 2008

8. How does the absorbed solar radiation heat the earth??
The shortwave radiation absorbed by the Earth’s surface is re-emitted as infrared radiation that gets trapped by GREENHOUSE GASSES - C02, H20 and methane in the atmosphere.
1. Incoming, short wavelengths absorbed by earth’s surface

9. How does the absorbed solar radiation heat the earth??
The shortwave radiation absorbed by the Earth’s surface is re-emitted as infrared radiation that gets trapped by GREENHOUSE GASSES - C02, H20 and methane in the atmosphere.
2 Earth’s surface emits LONG wavelengths skyward

10. How does the absorbed solar radiation heat the earth??
The shortwave radiation absorbed by the Earth’s surface is re-emitted as infrared radiation that gets trapped by GREENHOUSE GASSES - C02, H20 and methane (CH4) in the atmosphere.
3. Greenhouse gasses absorb long wavelengths = TRAPS HEAT IN ATMOSPHERE
H20
C02
CH4
H20
CH4
C02
CH4
H20
C02
C02
H20
H20
CH4
C02

11. Quickfire Discussion: Where would the temperature of the troposphere be warmest? Near the surface of the earth or higher up in elevation? Be ready to support your answer. +

12. Quickfire Discussion: Where would the temperature of the troposphere be warmest? Near the surface of the earth or higher up in elevation? Would the troposphere be warmer over land, or over water (this could be a argued either way!). Be ready to support your answer.
To answer your question in detail, we’ll do a small experiment testing the question of “How does heating on land and water compare”

13. 17.3 Temperature Controls
There are five factors other than latitude that influence temperature
Heating of land and water
Altitude
Geographic position
Cloud cover
Ocean Currents.

14. 17.3 Temperature Controls
There are five factors other than latitude that influence temperature
Heating of land and water
Land heats more rapidly and to higher temperatures than water.
Land cools more rapidly and to lower temperatures than water.

15. 17.3 Temperature Controls
There are five factors other than latitude that influence temperature
2. Altitude
Higher elevations generally have much cooler temperatures.
As a rule of thumb, for every 1000 feet you go up in elevation, the temperature cools 3 degrees Farenheit. (3◦F/1000ft)
In celc

16. 17.3 Temperature Controls
There are five factors other than latitude that influence temperature
Heating of land and water
Altitude
Geographic position
Cloud cover
Ocean Currents.