Naming conventions

General naming:

• t -- Time (year)
• r -- Region
• s -- Sector ???

Common Parameters:

• tol_param(r, s, "description")
• temp(t) -- Global mean temperature at time t
• RF(t) -- Radiative forcing at time t
• SL(t) -- Sea level at time t
• SLR(t) -- Sea level rise at time t
• Y(t,r) -- Income in region r at time t
• Y_pc(t, r) -- Per capita income in region r at time t
• Y_pc_growth(t,r) -- Growth rate of per-capita income of region r at time t
• A(t,r) -- Area of region r at time t
• P_dens(t,r) -- Population density of region r at time t
• P_growth(t,r) -- Population growth of region r at time t
• CO2(t) -- CO2 atmospheric concentration at time t

Aggregate states:

• Region (r) -- "world"

• Sector (s) -- "all"

• E.g., a parameter that is region specific but encompasses all sectors: tol_param(r, "all", "elevation")

• Or, a parameter that is not region or sector specific: tol_param("world", "all", "income_elasticity")

Other conventions:

• For recursive processes, use t, t-1, t-2... syntax (rather than ...t+2, t+1, t).