Sentences with phrase «top radiative cooling»

The collapse of the Sc clouds occurs because, as the free - tropospheric longwave opacity increases with increased CO2 and water vapor concentrations, the turbulent mixing that is driven by cloud - top radiative cooling weakens, and therefore is unable to maintain the Sc layer.

Not exact matches

That's far from the worst flaw in his calculation, since his two biggest blunders are the neglect of the radiative cooling due to sulfate aerosols (known to be a critical factor in the period in question) and his neglect of the many links in the chain of physical effects needed to translate a top of atmosphere radiative imbalance to a change in net surface energy flux imbalance.

A compelling argument for the positive longwave response is a leading alternate to Lindzen's IRIS although it receives less attention, and is known as the FAT hypothesis (from Dennis Hartmann) and arises from the fundamental physics of convection only heating the atmosphere where radiative cooling is efficient, and thus the temperature at the top of convective cloudiness should be near constant as it becomes warmer.

@RI: More CO2 raises the optical depth (in layman speak, the top of the GHG radiative «fog» above which IR is free to radiate to space and cool).

More CO2 raises the optical depth (in layman speak, the top of the GHG radiative «fog» above which IR is free to radiate to space and cool).

This unique feature of the Antarctic atmosphere has been shown to result in a negative greenhouse effect and a negative instantaneous radiative forcing at the top of the atmosphere (RFTOA: INST), when carbon dioxide (CO2) concentrations are increased, and it has been suggested that this effect might play some role in te recent cooling trends observed over East Antarctica.

The presence of BC resulted in positive radiative forcing in the atmosphere leading to warming effect (+ 2.1 W / m2) whereas cooling was observed at the top of the atmosphere (− 0.4 W / m2) and at surface (− 2.5 W / m2).

The higher cloud tops have less atmosphere above them to hinder radiative cooling to space so they cool faster without getting warmer.

Your claim proven as a theorem now means basically (with some radiative cooling at the top for the return flow) that it does not need confirmation by numerical modelling, but rather, application, to see how it plays out in real atmospheric problems.

The evaporative, conductive and radiative processes combined then set up a thermal gradient causing an upward flow of energy from water to air from where that 1 mm layer touches the ocean bulk below, up across the cooler layer then to the Knudsen layer by reversing the normal (warm at the top and cool at the bottom) temperature gradient which exists from that 1 mm layer down to the ocean bottom.