Simple energy balance climate models In equilibrium, SW Qs(x)A(T)-I(T)+F(T)=0 ↓ The snow line case: Atmosphere Made assumptions below: Planetary albedo is assumed to depend primarily on snow /ice cover; 动力输送 The infrared cooling I=A+BT Surface A(T)= a, for T<Tsnow or B, for T>Tsnow 授课教师：张洋10授课教师：张洋 10 Simple energy balance climate models Atmosphere Surface SW LW 动⼒输送 In equilibrium, Qs(x)A(T) ￾ I(T) + F(T)=0 The snow line case: n Made assumptions below: n Planetary albedo is assumed to depend primarily on snow /ice cover; n The infrared cooling I = A + BT A(T) = ↵, for T <Tsnow or = ￾, for T >Tsnow