GGR214H5 Lecture Notes - Lecture 4: Heat Capacity, Background Radiation, Advection
Document Summary
If 341 is 100%, then what we come up with is 160 watts per metre squared (wm-2) Longwave l: shortwave k, thinner clouds lower albedo, less sw radiation absorbed off the clouds, end up having a net cooling effect, whereas the thicker ones have a net warming effect. If radiative balance occurred at 70 units of solar radiation absorbed in the earth-atmosphere system 70 units of lw leave the system: not perfectly balanced. If we are gaining more energy than we are losing, this leads to warmer temp, which leads to climate change. If you have a surplus of energy, you have a surplus of net radiation: go below zero and have a deficit, 38 deg north and south balance, overall energy is 0, meridional transport transport of energy. Surface energy balance: microclimates depend greatly on surface conditions, albedo, emissivity. Heat transfer: 2 main types, radiative, net radiation, net shortwave, net longwave, non-radiative, sensible heat flux.
