Sentences with phrase «radiative cooling»
Radiative cooling is a process by which an object or a surface loses heat by emitting infrared radiation. It happens when the temperature of the object is warmer than its surroundings, allowing heat energy to be released as thermal radiation. This phenomenon helps cool down the object, like how you feel cooler when you step out in the open during a hot day. Full definition
The strength of radiative cooling in turn depends on the characteristics of the clouds formed by the condensed vapor.
climate-dynamics.org
Your last item is just enhanced radiative cooling due to increased CO2.
(2) Back radiation can only slow radiative cooling back to the atmosphere.
Their next step is to demonstrate radiative cooling of solar cells in an outdoor environment.
The temperature did not change, so the surface temperature - dependent responses of atmospheric radiative cooling also did not change.
Adding radiative gases to the atmosphere will not reduce the atmospheres radiative cooling ability.
«We found that while gas is launched out of the quasar at very high temperatures, there is enough time for some of it to cool through radiative cooling — similar to how the Earth cools down on a cloudless night,» said Tiago Costa, a PhD student at the Institute of Astronomy and the Kavli Institute for Cosmology, and lead author on the second paper.
This is a common situation in a high - pressure area with cooling at the surface by radiative cooling at night in summer, or advection of cold air in winter or in a marine layer.
Results show that the intrusion of dust from the Sahara Desert caused radiative cooling of Earth's surface.
«Before the two records are combined with the 4000 ‐ year temperature record, it is necessary to make an adjustment, as firn temperatures are colder than air temperatures by 0.2 °C to 2.6 °C in Greenland [Steffen and Box, 2001] as a result of the surface radiative cooling and inversion as noted above.
And of course totally ignoring that CO2 radiative cooling implies that emitted photons only move outbound and (possibly) are not reabsorbed and thermalized on the way out.
During this event, the aerosols stayed close to the surface due to the presence of a anticyclone hovering over the study region at sea - level, «reducing the amount of shortwave irradiance reaching the surface and causing greater radiative cooling,» states Obregón, who likens the effects of desert dust with those resulting from certain forest fires or episodes of high pollution.
«In addition to these regions, we can foresee applications for radiative cooling in off - the - grid areas of the developing world where air conditioning is not even possible at this time.
To put it a different way, a typical one - story, single - family house with just 10 percent of its roof covered by radiative cooling panels could offset 35 percent its entire air conditioning needs during the hottest hours of the summer.
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.
It's because both land and ocean surfaces are heated by shortwave solar radiation and where aerosols reflect SWR equally well over land or water and where greenhouse gases work by retarding the rate of radiative cooling which is not equal over land and water.
Initially, shallow circulations driven by differential radiative cooling induce a self - aggregation of the convection into a single band, as has become familiar from simulations over idealized sea surfaces.
The magnitude of this effect varies from model to model and leads to increased adiabatic heating of the polar regions, compensating in part the increased radiative cooling from CO2 increases.
In the far northern latitudes there's not much surface area so the error probably doesn't mean much but then again when water vapor is frozen out of the atmosphere the so - called IR window gets a lot bigger and fewer clouds closing it back up means the error might be significant because radiative cooling efficiency is drastically increased in very cold clear sky.
Physicists have achieved record temperature reductions of more than 40 °C using radiative cooling, which beams heat through the atmosphere
«No one had yet been able to surmount the challenges of daytime radiative cooling — of cooling when the sun is shining,» said Eden Rephaeli, a doctoral candidate in Fan's lab and a co-first-author of the paper.
[Yao Zhai et al., Scalable - manufactured randomized glass - polymer hybrid metamaterial for day - time radiative cooling]
The pyramid structures made of silica glass provide maximal radiative cooling capability.