Sentences with phrase «planetary surface albedo»

Not exact matches

However, there is an additional shortcoming due to the fact that the equilibrium temperature is also affected by the ratio of the Earth's geometrical cross-section to its surface area as well as how much is reflected, the planetary albedo (A).

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.»

Open and closed cell cloud formation dynamics are driven by sea surface temperature — with cooler surfaces favoring closed cells and higher planetary albedo.

This estimate was refined by Hansen and Nazarenko (2004), who used measured BC concentrations within snow and ice at a wide range of geographic locations to deduce the perturbation to the surface and planetary albedo, deriving an RF of +0.15 W mâ $ «2.

The black line, reconstructed from ISCCP satellite data, «is a purely statistical parameter that has little physical meaning as it does not account for the non-linear relations between cloud and surface properties and planetary albedo and does not include aerosol related albedo changes such as associated with Mt. Pinatubo, or human emissions of sulfates for instance» (Real Climate).

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).

Clouds, which cover about 60 % of the Earth's surface, are responsible for up to two - thirds of the planetary albedo, which is about 30 %.

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.