| Question |
Answer |
| The sun's core.... |
20,000,000 K, nuclear fision reactor converts hydrogen into heat energy |
| The photoshpere...... |
6,000K, compared to the 300K on earth |
| Radiative heat transfer..... |
Anything above zero kelvin radiates, travels through vacuums at the speed of light |
| Planck's Law..... |
the hotter the surface, the shorter the wave hence , short wave long wave radiation |
| Lamda max(wave length i think) for solar radiation..... |
0.5 mew meters (micro meters?) |
| Lamda-max for terrestrial radiation..... |
10 mew meters |
| The amount of solar radiation that arrives at the top of the atmosphere (solar constant)...... |
1,340 - 1370 W m-2, best estimate is 1367 W m-2 |
| What happens to solar radiation as it passes through the atmosphere? |
Absorbed, Scattered, Reflected OR Transmitted (allowed to continue its journey uninterupted) |
| How much solar radiation is absorbed? |
18% by ozone and oxgen molecules |
| High temperature in thermosphere because.... |
high molecular energy |
| The Troposphere is hot because... |
long wave radiation from below |
| Albedo is.... |
reflectivity of matter to solar radiation |
| Albedo trends.... |
Snow, cumulus clouds are about 0.8, deserts oceans and sea ice range from 0.05 - 5.0 |
| Overall Albedo of earth.... |
0.32 |
| Amount of short wave radiation absorbed by the surface? |
50% |
| How is the absorbed heat energy balanced? |
IR radiation (long wave), latent heat (evaporation), convection (smart heat) |
HHS Shrek
