Planetary surface energy balance (source code)

= Planetary surface energy balance

A planetary surface energy balance equates absorbed short-wave radiation and heat supplied from below with reflected short-wave radiation and emitted long-wave radiation. With incident flux $F_r$, <Bond albedo> $\alpha$, conductive upward flux $F_c$, and <emissivity> $\epsilon$,
$$
(1-\alpha)F_r+F_c=\epsilon\sigma T_s^4.
$$