climate8

climate8 - Terrestrial Radiation Introducing the Greenhouse...

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B. Counterradiation 1. Carbon dioxide (CO2), water vapor and a few other gases in atmosphere absorb some of the terrestrial radiation emitted by Earth and re-direct it back to surface. Terrestrial Radiation: Introducing the Greenhouse Effect A. If earth's climate is unchanging then incoming energy must be balanced by outgoing radiation. That outgoing radiation is Terrestrial Radiation , also known as long wave or infrared radiation BUT … NOT all terrestrial radiation goes back into space 2. So extra source of heat for earth 3. CO2 and water vapor act as thermal blanket for earth - trapping heat 4. Counterradiation concept is best known as GREENHOUSE EFFECT
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C. The difference between a greenhouse and the greenhouse effect 1. A "greenhouse" is a building that allows sunlight in to heat up the earth and then traps that heated air within the building. ( Nothing to do with infrared radiation ) 2. The " greenhouse effect " is the effect produced by carbon dioxide and water vapor (and a few other gases) to trap the earth's heat (infrared radiation) close to the earth.
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3. What happens to temperature on a cloudy night? D. Greenhouse gases: water vapor, carbon dioxide, methane, nitrous gases, chloroflurocarbons We have measured the amount of greenhouse gases in our atmosphere: QUITE DEFINITELY, THE AMOUNT OF GREENHOUSE GASES IS INCREASING . Therefore, according to theory, the globe should be warming. A. Is the Greenhouse Effect Real?
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Seasonal biospheric response: In Spring (northern hemisphere),biosphere expands, taking up CO2 faster than decay and respiration can give it back In fall and winter, respiration and decay exceed photosynthesis and CO2 builds up in atmosphere
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climate8 - Terrestrial Radiation Introducing the Greenhouse...

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