I can't speak to the specific RF and atmospheric interactions, but the changes to weather patterns and long-term climatic anomalies from climate change have been well established by climatologists. From my understanding, the issue with focusing specifically on land-atmospheric interactions at one altitude in the lower troposphere is that topography, land/water cover, latitude and existing weather patterns will have a more dominant effect and it'll be effectively impossible to determine changes based solely on RF anomaly.

For more info, it might make more sense to look over the IPCC AR5 Working Group 1 Technical Summary Report. Chapters TS.2 and TS.4 would probably have some specifics that could help clarify things.

With more thermal radiation absorbed in the air, less escapes into space, and the net energy balance of Earth is positive which results in a slow and steady warming.