Temperature?Dependence of the Clear?Sky Feedback in Radiative?Convective Equilibrium

We quantify the temperature-dependence of clear-sky climate sensitivity in a one-dimensional radiative-convective equilibrium model. The atmosphere is adjusted to fixed surface temperatures between 280 and 330 K while preserving other boundary conditions particular relative humidity CO2 concentration. show that an out-of-bounds usage radiation scheme rapid radiative transfer model for GCMs (RRTMG) can lead erroneous decrease feedback parameter associated “bump” as found modeling studies. Using line-by-line model, we find no evidence strengthening longwave 305 320 K. However, simulations also slight when exceed 310 This caused by water-vapor masking forcing at flanks absorption band, which reduces total about 18%.