| NATS 101 Lecture 5 Greenhouse Effect and Earth-Atmo Energy Balance and the Seasons |
| Review Items |
| New Business |
| Modes of Heat Transfer |
| Latent Heat Take 2 |
| General Laws of Radiation |
| SunŐs Radiation Spectrum |
| Sun - Earth Radiation Spectra |
| What is Radiative Temperature of Sun if Max Emission Occurs at 0.5 mm? |
| How Much More Energy is Emitted by the Sun than the Earth? |
| Radiative Equilibrium |
| Radiative Equilibrium (cont.) |
| Why Selective, Discrete Absorption/Emission? |
| Energy States for Atoms |
| Energy States for Molecules |
| Selective Absorption |
| Absorption |
| Total Atmospheric Absorption |
| Global Solar Radiation Balance (Only half of Solar Radiation SR reaches the surface) |
| Atmosphere Heated from Below |
| Global Atmo Energy Balance |
| Summary |
| NATS 101 Intro to Weather and Climate Next subject: The Seasons |
| Supplemental References for TodayŐs Lecture |
| Reasons for Seasons |
| Eccentricity of Orbit |
| Slide 27 |
| Solar Zenith Angle |
| Beam Spreading |
| Beam Spreading |
| Atmospheric Path Length |
| Length of Day |
| Day Hours at Solstices - US Sites |
| Path of Sun |
| Noon Zenith Angle at Solstices |
| Is Longest Day the Hottest Day? |
| Annual Energy Balance |
| Summary |
| Assignments for Next Lectures |