What Proportion Of Incoming Solar Radiation Reaches Earth’S Surface?

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Reflection of solar radiation occurs when the radiation is sent directly backward from a surface. The fraction (or percentage) of radiation reflected back is known as albedo.

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What is incoming solar radiation called?

Input is received in the form of short-wave solar energy. This is called insolation. Insolation is solar radiation received in the Earth’s atmosphere or at its surface.

What happens to incoming solar radiation quizlet?

Less than one-quarter of incoming solar radiation is absorbed directly by the atmosphere. Nearly half of incoming radiation simply transmits through the atmosphere to Earth’s surface where it is absorbed warming the surface. … The angle at which rays from the Sun strike Earth’s surface.

What does kWh m2 mean?

The solar map uses insolation a measure of solar radiation energy received on a given surface area in a given time. This is typically measured in kilo-watt hours per square meter per day (kWh/m2/day).

What are two basic ways to measure solar radiation?

Explanation: Thee two basic ways to measure solar radiation are via ground-based instruments and satellite measurements.

How much solar energy hits the Earth per second?

The sun’s luminosity is about 3.8 x 1026 Joules a second. In terms of mass you can think of the total energy output as about 4 000 000 tons every second. When the curvature of the Earth and the density of the luminosity that hits our planet is considered we receive only about 4.5 pounds per second of that energy.

What percentage of the total radiation absorbed by the Earth’s surface energy received comes directly from greenhouse gas emissions?

The Natural Greenhouse Effect

Remember that the surface radiates the net equivalent of 17 percent of incoming solar energy as thermal infrared. However the amount that directly escapes to space is only about 12 percent of incoming solar energy.

How does solar energy affect Earth’s atmosphere and surfaces?

The radiation warms the Earth’s surface and the surface radiates some of the energy back out in the form of infrared waves. As they rise through the atmosphere they are intercepted by greenhouse gases such as water vapor and carbon dioxide. Greenhouse gases trap the heat that reflects back up into the atmosphere.

How do you calculate surface temperature from radiation?

The rate of heat transfer by emitted radiation is determined by the Stefan-Boltzmann law of radiation: Qt=σeAT4 Q t = σ e A T 4 where σ = 5.67 × 10−8 J/s · m2 · K4 is the Stefan-Boltzmann constant A is the surface area of the object and T is its absolute temperature in kelvin.

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