Sentences with phrase «solar absorption»
"Solar absorption" refers to the process of capturing and absorbing sunlight. It means that an object or material is able to take in the energy from the sun's rays and convert it into usable heat or electricity. Full definition
[Response: As far as warming of the surface goes, you can forget about solar absorption in the atmosphere.
realclimate.org
Thus, there is a positive feedback between warming, snow aging, increased solar absorption, and reduced albedo.
Without solar absorption, increasing tau warms the atmosphere at every level, though the amount of warming decreases with height as the temperature asymptotes to the skin temperature.
In tests, the resulting SSAs showed a significantly higher solar absorption at all angles (~ 97 % absorption when the sun is above, ~ 80 % when near the horizon) than existing designs.
Sandia's new fractal - like receiver designs have increased solar absorption efficiency without the need for special coatings.
Unless low - level cloud albedo substantially decreased during this time period, the reduced solar absorption caused by the reported enhancement of cloud cover would have resulted in cooling of the climate system that is inconsistent with the observed temperature record.»
Unless low - level cloud albedo substantially decreased during this time period, the reduced solar absorption caused by the reported enhancement of cloud cover would have resulted in cooling of the climate system that is inconsistent with the observed temperature record.»
If one plots temperature as a function of pressure for a sequence of increasing tau, the phenomenon is immediately apparent in cases where the upper level solar absorption is sufficiently strong.
«Greenhouse Effect, Atmospheric Solar Absorption and the Earth's Radiation Budget: From the Arrhenius - Langley Era to the 1990s.»
But using a new simulation that relies on data from the Indian Ocean Experiment (INDOEX), researchers have demonstrated an exactly opposite mechanism — one in which aerosol pollution actually intensifies solar absorption and reduces cumulus cloud cover, which significantly offsets whatever cooling it might cause within other layers of the atmosphere.
«Direct Observations of Excess Solar Absorption by Clouds.»
We floated the slab surface for texture, and stained it a dark brown to improve solar absorption.
Increase In Arctic Solar Absorption Measured.
In fact, when ablation is dominated by sublimation, it takes a very large change in conditions (e.g. solar absorption) to appreciably affect ablation.
Halides, such as iodide or bromide, are mixed at different ratios to tune properties in the material, like band gaps, that determine solar absorption efficiency.
Presumably the much larger area that received a light dusting would react in the typically expected manner — slightly lower albedo resulting in slightly higher solar absorption.
There can not be stratospheric cooling in a grey atmosphere with more CO2 (neglecting upper level solar absorption), but in more realistic radiative models (with a window region around 10 um) this phenomena can emerge from increased opacity (And shielding of radiation into the stratosphere) in the 15 um spectral region and increase in the 10 um flux from the ground as the surface is made warmer.
1997 V. Ramanathan and Andrew M. Vogelman, «Greenhouse Effect, Atmospheric Solar Absorption and the Earth's Radiation Budget: From the Arrhenius - Langley Era to the 1990s.»
«Solar absorption by aerosols during the northeast monsoon over the Indian Ocean can reduce daytime cloud coverage by nearly half in a specific case of trade cumulus,» the scientists wrote in a paper appearing in the May 12 issue of Science.
To optimize a solar absorber's efficiency, it is desirable to maximize the solar absorption and reduce the thermal radiation of heat from the absorber.
«The goal was to lower the operating temperature of the solar cell while maintaining its solar absorption,» said Fan.
The element helium was discovered by Jules Janssen during the total solar eclipse of 1868 when he detected a new line in the solar absorption spectrum; Norman Lockyer suggested the name helium.
With solar absorption, however, the increased infrared cooling of the upper atmosphere offsets more and more of the warming due to solar absorption, leading to a cooling there.»
The passages relevant to solar absorption by ozone are the following:
During the polar winters there is no sun, thus no solar absorption or reflection, so during these months the climate really doesn't care whether we painted the Arctic coal - black or brilliant white — it only cares about temperature of the water and the air.
We are dealing with a nonlinear problem which keeps changing as ice melts and greater area of water is exposed, raising the solar absorption.
Some values are still uncertain to within 20W / m ^ 2 especially the solar absorption in the atmosphere.
This equation assumes that the atmosphere has no convection, has no variation in emissivity with wavelength, has no solar absorption in the atmosphere, and where the heating rate at each level in the atmosphere = zero.