Term
| How far does the atmosphere extend? |
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Definition
| 6000 miles avoce earths surface |
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Term
| how far does the troposphere extend? |
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Definition
10 miles
1 page from a 400 page book |
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Term
What happens to temperatures as altitude increases?
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Definition
| Temperature decreases due to less mass to absorb heat and GHE is highest closes to earth surface |
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Term
| What are the 3 most common gasses in the atmosphere? |
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Definition
- Diatomic nitroget
- diatomic oxygen- this is very important in earths systmes
- argon- plays no role
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Term
5 Important Greenhouse gasses
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Definition
- Water Vapor 0 in south pole 4 % in humid areas
- CO2 370 ppm .04%
- methane: farts and burning stoves
- nitrous oxied
- ozone
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Term
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Definition
| Longest continuos measurments of C02 concentration |
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Term
Why was Mauna Loa chosen?
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Definition
- remote from industutry
- above tree line high altitute
- remote island well mixed rep. of regional atmosphere
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Term
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Definition
Named fro charles keeling who invented the CO2 concentration meter
curve consist of monthly meausrments of co2 starting in 1958 |
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Term
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Definition
| 55 year trend shows steady incresing of co2 at 2 ppm yr-1 weak curvilinear |
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Term
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Definition
| 300 years of info from gass bubles in icein 1700 roughly 280 ppm industiral revolution increased it severly today we are at 370 |
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Term
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Definition
| annual variation of 6 ppm highest in may and lowest in sepetmber more co2 absorbed in may thatn in spetember |
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Term
Physical causes of greenhouse effect
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Definition
SW radiation emmited by sun is absorbed by earth
LW radiation is emitted by cooler earth and absorbed by GHG
LW radiation emited from GHG and some is abosorbed by earth (GHE) |
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Term
how do molecules absorb radiation?
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Definition
It must be the right wavelength differen GHG respond to different wavelengths
LW radaiton can be stored by molecule vibrating
it is then emmitied when it returns to its normal state of rotation or vibration (doppler broadening and pressure broadening) |
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Term
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Definition
| rotations per second inorder to rotate they need to be impacted by a photon with the right energy |
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