GEOLOGY

EARTH SCIENCE

CLIMATE AND ENVIRONMENTAL CHANGE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Albedo can best be described as ____
A
the temperature at the equator
B
the amount of solar radiation absorbed
C
the amount of solar radiation reflected
D
the air pressure during El Nino
Explanation: 

Detailed explanation-1: -Albedo (/ælˈbiːdoʊ/; from Latin albedo ‘whiteness’) is the measure of the diffuse reflection of solar radiation out of the total solar radiation and measured on a scale from 0, corresponding to a black body that absorbs all incident radiation, to 1, corresponding to a body that reflects all incident radiation.

Detailed explanation-2: -Albedo is an expression of the ability of surfaces to reflect sunlight (heat from the sun). Light-coloured surfaces return a large part of the sunrays back to the atmosphere (high albedo). Dark surfaces absorb the rays from the sun (low albedo).

Detailed explanation-3: -Earth’s average albedo is about 0.3. In other words, about 30 percent of incoming solar radiation is reflected back into space and 70 percent is absorbed.

Detailed explanation-4: -Albedo is the amount of sunlight (solar radiation) reflected by a surface, and is usually expressed as a percentage or a decimal value, with 1 being a perfect reflector and 0 absorbing all incoming light. When talking about albedo, the surface is almost always the surface of a planet like Earth.

Detailed explanation-5: -In the strictest sense, albedo-or whiteness-is defined as the proportion of light reflected from a surface. Seen from space, Earth is a patchwork of darkness and light, from bright white ice caps and clouds to super-dark lava beds and everything in between.

There is 1 question to complete.