Sentences with phrase «in planetary albedo»

This is not purely a thermodynamic response to the reduction in planetary albedo at these latitudes.

This study uses satellite radiation budget measurements along with satellite microwave sea ice data to document the Arctic - wide decrease in planetary albedo and its amplifying effect on the warming.

Greenhouse warming that is stronger over land and in the Northern Hemisphere tends to strengthen the monsoon, but increases in planetary albedo over the continent due to aerosol forcing and / or land - use change tend to weaken it.

Rayleigh - Benard Convection cloud physics result in changes in planetary albedo.

, a change in planetary albedo (forest die off?)

The identified atmospheric feedbacks including changes in planetary albedo, in water vapour distribution and in meridional latent heat transport are all poorly represented in zonal energy balance model as the one used in [7] whereas they appear to be of primary importance when focusing on ancient greenhouse climates.

It is well known that multiple factors are involved, including the change in planetary albedo, change in nitrous oxide concentration, change in methane concentration, and change in CO2 concentration.

This implies that the CRF levels must have systematically decreased over time, causing a long - term decrease in the low cloud fraction and hence a long - term reduction in the planetary albedo, that again would be responsible for the warming.

Not exact matches

Nicholson says that even if research agencies under Trump avoid research into geoengineering techniques such as albedo modification, the U.S. intelligence community might remain interested, especially in whether other countries are pursuing their own planetary cooling technologies, which could affect many nations.

The solar radiative forcing is TSI in Watts per square meter (W - m - 2) divided by 4 to account for spherical geometry, and multiplied by 0.7 to account for planetary albedo (Meehl 2002).

For each planetary candidate, the equilibrium surface temperatures are derived from «grey - body spheres without atmospheres... [and] calculations assume a Bond albedo of 0.3, emissivity of 0.9, and a uniform surface temperature... [with uncertainties of] approximately 22 %... because of uncertainties in the stellar size, mass, and temperature as well as the planetary albedo.»

The idea was that the resulting increase in aerosol would increase the brightness and lifetime of low maritime clouds, increasing the planetary albedo.

To make such statements wouldn't we have to know the 3 - D dust field in the LGM and the impact of those aerosols on clouds (and planetary albedo)?

These findings are remarkable insofar as they indicate that anthropogenic perturbations of the planetary albedo, such as sulphur emissions and / or land - use changes, or natural variations in insolation and CO2 concentration could trigger abrupt transitions between different monsoon regimes.

«Our results suggest that, in contrast to other proposals to increase planetary albedo, offsetting mean global warming by reducing marine cloud droplet size does not necessarily lead to a drying, on average, of the continents.

However, even a smaller figure (I had calculated about 0.17 W / m ^ 2 based on your inflated figure for total planetary albedo, but you can check it out) is still significant when compared with the total flux imbalance, which I think is a more informative comparison than an arbitrarily selected change in cloud cover, because it compares the sea ice reduction with the effects of all climate variations that have been operating in recent years..

The real «flat plate» GHE is between 11 and 17 K depending on your estimate of present albedo and planetary emissivity in the absence of GHGs.

Found Joseph Postma's derivation of the formulae for calculating planetary temperature very helpful, even if I think he has made a small mistake in failing to account for both albedo and emissivity.

But whether someone chooses to use the term Albedo or Bond albedo it doesn't appear as though anyone has actually got right the values for the Bond albedo on any planetary body or any object in space - and as result still getting a ballpark nAlbedo or Bond albedo it doesn't appear as though anyone has actually got right the values for the Bond albedo on any planetary body or any object in space - and as result still getting a ballpark nalbedo it doesn't appear as though anyone has actually got right the values for the Bond albedo on any planetary body or any object in space - and as result still getting a ballpark nalbedo on any planetary body or any object in space - and as result still getting a ballpark number.

The cause could be any short or long term change in a number of things solar output, ocean heat release, planetary albedo, vapor, whatever.

Increased biomass can lead to increased emissions of biogases such as dimethyl sulfide and isoprene, which when oxidized in the atmospheric form sulphate and organic aerosols that can nucleate clouds, increasing cloud cover and planetary albedo — the CLAW Hypothesis.

In order to determine the solar contribution, we have to start with the solar radiative forcing, which is the change in total solar irradiance (TSI) in Watts per square meter (W / m2) divided by 4 to account for spherical geometry, and multiplied by 0.7 to account for planetary albedo (Meehl 2002In order to determine the solar contribution, we have to start with the solar radiative forcing, which is the change in total solar irradiance (TSI) in Watts per square meter (W / m2) divided by 4 to account for spherical geometry, and multiplied by 0.7 to account for planetary albedo (Meehl 2002in total solar irradiance (TSI) in Watts per square meter (W / m2) divided by 4 to account for spherical geometry, and multiplied by 0.7 to account for planetary albedo (Meehl 2002in Watts per square meter (W / m2) divided by 4 to account for spherical geometry, and multiplied by 0.7 to account for planetary albedo (Meehl 2002).

Global temps vary for many reasons beyond CO2 levels including but not limited to: planetary motion, changes in albedo, stratospheric aerosols, and solar variability to name a few, but the only area of genuine study by the IPCC has been rising CO2 levels.

Planetary albedo: The fraction of incident solar radiation that is reflected by the Earth - atmosphere system and returned to space, mostly by back scatter from clouds in the atmosphere.

The authors» argue that early life may perform a vital regulating function on an early planetary environment by impacting both the planet's albedo (how much light it reflects from the sun) and the greenhouse gases present in its atmosphere.

quote from the article: For example, in the analysis, not only does the amount of CO2 not enter in (Earth has 0.04 %, Venus a whopping 96.5 %), but the albedo (from either cloud tops or the planetary surface) does not either (Venus has dense clouds that reflect much of the incident visible radiation, while Earth does not, and Earth's surface is 70 % deep ocean, while Venus is solid crust).

In the past few years several attempts have been made to assess changes in the Earth's planetary albedo, and claims of global dimming and more recently brightening have been debated in journal articles and blogs alikIn the past few years several attempts have been made to assess changes in the Earth's planetary albedo, and claims of global dimming and more recently brightening have been debated in journal articles and blogs alikin the Earth's planetary albedo, and claims of global dimming and more recently brightening have been debated in journal articles and blogs alikin journal articles and blogs alike.

Part of the changes in the spatial correlations is expected to be due to convection and clouds, which too play a role for the GHG, in addition to influencing the planetary albedo.

I would not regard heat being stored in the ocean and melting snow / ice but not completely melting it (and thereby changing the surface albedo), since this does not have any sort of direct change to the planetary radiative fluxes.