Dependence of Climate Sensitivity on the Given Distribution of Relative Humidity

We study how the vertical distribution of relative humidity (RH) affects climate sensitivity, even if it remains unchanged with warming. Using a radiative-convective equilibrium model, we show that sensitivity depends on shape fixed humidity, tending to be higher for atmospheres humidity. interpret these effects in terms effective emission height water vapor. Differences RH are shown explain large part 10%–30% differences clear-sky seen and storm-resolving models. The results imply convective aggregation reduces when degree does not change Combining our findings trends reanalysis data shows tendency toward Earth becoming more sensitive forcing over time. These their variation merit further study.