The Primary Factor Which Determines What Type And How Much Radiation An Object Emits Is Its


The Primary Factor Which Determines What Type And How Much Radiation An Object Emits Is Its?

The primary factor which determines what type and how much radiation an object emits is its: temperature. Most of the solar energy absorbed by planet Earth and its atmosphere is absorbed by: the Earth’s surface.

What is the primary reason for the loss of so much solar radiation?

While the absorption by specific gasses in the atmosphere change the spectral content of the terrestrial solar radiation they have a relatively minor impact on the overall power. Instead the major factor reducing the power from solar radiation is the absorption and scattering of light due to air molecules and dust.

What type of radiation is emitted by the Earth’s terrestrial surfaces quizlet?

Terrestrial radiation is infrared radiation emitted by Earth’s surface. Cite a primary difference between waves of solar radiation and waves of terrestrial radiation. Solar radiation peaks at shorter wavelengths in the visible whereas terrestrial radiation peaks at longer wavelengths in the infrared.

When an object absorbs radiant energy its temperature increases True False?

Cards In This Set
Front Back
When an object absorbs radiant energy its temperature increases. True
Advection refers to vertical convection motions. False. (horizontal)
The inclination of the Earth’s axis is 0degree on the equinox dates. False
As an object cools the wavelengths of its maximum radiation shorten. False.

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What does not happen to solar radiation as it passes through the atmosphere?

Solar radiation that is not absorbed or reflected by the atmosphere (for example by clouds) reaches the surface of the Earth. The Earth absorbs most of the energy reaching its surface a small fraction is reflected.

What is the primary change caused by the absorption of insolation?

Terrestrial Radiation – Once insolation is absorbed by the Earth’s surface it eventually gets re-radiated back into the atmosphere or into space.

What are the reason for variation in solar radiation reaching the Earth than received at the outside of the atmosphere?

While the solar radiation incident on the Earth’s atmosphere is relatively constant the radiation at the Earth’s surface varies widely due to: atmospheric effects including absorption and scattering local variations in the atmosphere such as water vapour clouds and pollution latitude of the location and.

What is the primary cause of Earth’s seasons quizlet?

The primary cause of Earth’s seasons is: tilt of Earth’s rotation axis which causes sun angles and daylight length to vary.

What type of gas absorbs and re emits infrared radiation quizlet?

Molecules of carbon dioxide (CO2) can absorb energy from infrared (IR) radiation.

Does the Earth emit infrared radiation?

Earth scientists study infrared as the thermal emission (or heat) from our planet. As incident solar radiation hits Earth some of this energy is absorbed by the atmosphere and the surface thereby warming the planet. This heat is emitted from Earth in the form of infrared radiation.

How conduction convection and radiation affect the temperature of the Earth?

Convection is the transfer of heat energy in a fluid. … Air in the atmosphere acts as a fluid. The sun’s radiation strikes the ground thus warming the rocks. As the rock’s temperature rises due to conduction heat energy is released into the atmosphere forming a bubble of air which is warmer than the surrounding air.

How many percent of the sun’s energy is absorbed by the atmosphere and clouds?

Of the 340 watts per square meter of solar energy that falls on the Earth 29% is reflected back into space primarily by clouds but also by other bright surfaces and the atmosphere itself. About 23% of incoming energy is absorbed in the atmosphere by atmospheric gases dust and other particles.

How is radiant energy caused?

Radiant energy is created through electromagnetic waves and was discovered in 1885 by Sir William Crookes. Fields in which this terminology are most often used are telecommunications heating radiometry lighting and in terms of energy created from the sun. Radiant energy is measured in joules.

What factors affect the amount of solar energy that reaches the Earth’s surface?

Latitude climate and weather patterns are major factors that affect insolation—the amount of solar radiation received on a given surface area during a specific amount of time. Locations in lower latitudes and in arid climates generally receive higher amounts of insolation than other locations.

What factors determine the amount of radiant energy we will receive on earth?

In total seven influences on solar radiation have been identified:
  • Solar elevation. Where the sun sits in the sky determines the level of UV radiation reaching us. …
  • Ozone. …
  • Cloud cover. …
  • Ground surface reflectivity. …
  • Altitude. …
  • Aerosols and pollutants. …
  • Direct and diffuse UV.

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How much energy does Earth receive from the Sun?

A total of 173 000 terawatts (trillions of watts) of solar energy strikes the Earth continuously. That’s more than 10 000 times the world’s total energy use. And that energy is completely renewable — at least for the lifetime of the sun.

How does the amount of incoming radiation to earth compare to the amount of outgoing radiation?

How does the amount of incoming radiation to earth compare to the amount of outgoing radiation? The amount of outgoing radiation equals the amount of incoming radiation. At any one time half of earth’s surface is lit in sunlight and half of earth is subjected to darkness.

What causes radiation in the atmosphere?


Incoming ultraviolet visible and a limited portion of infrared energy (together sometimes called “shortwave radiation”) from the Sun drive the Earth’s climate system. … Larger aerosol particles in the atmosphere interact with and absorb some of the radiation causing the atmosphere to warm.

What influences the distribution and amount of radiation received by the surface?

The amount and intensity of solar radiation that a location or body of water receives depends on a variety of factors. These factors include latitude season time of day cloud cover and altitude. Not all radiation emitted from the sun reaches Earth’s surface.

What factors influence the amount of solar radiation received at the top of the atmosphere?

Solar energy received over the planet’s surface varies according to season latitude transparency of the atmosphere and aspect or ground slope. Insolation affects temperature. The more the insolation the higher the temperature.

What factors affect the amount of radiation a surface receives from the Sun?

The intensity of the solar radiation at a given location depends on your latitude terrain season time of day and atmospheric conditions. For example clouds dust and water vapor all affect the amount of radiation that reaches the surface at any given location.

Why does the amount of solar radiation vary with latitude?

When the sun’s rays strike Earth’s surface near the equator the incoming solar radiation is more direct (nearly perpendicular or closer to a 90˚ angle). … At higher latitudes the angle of solar radiation is smaller causing energy to be spread over a larger area of the surface and cooler temperatures.

What is the primary cause of Earth seasons?

The earth’s spin axis is tilted with respect to its orbital plane. This is what causes the seasons. When the earth’s axis points towards the sun it is summer for that hemisphere. … Midway between these two times in spring and autumn the spin axis of the earth points 90 degrees away from the sun.

What is the primary reason for Earth’s seasons?

Remind students that the two reasons seasons occur are the tilt of a planet’s axis and its orbit around the sun.

What determines the seasons on Planet Earth and why quizlet?

The cause of seasons on Earth are its atmosphere and its degree of tilt which both affect the amount of solar energy that reaches each part of Earth at any time.

What type of gas absorbs Andre emits infrared radiation?

Carbon dioxide

greenhouse gas any gas that has the property of absorbing infrared radiation (net heat energy) emitted from Earth’s surface and reradiating it back to Earth’s surface thus contributing to the greenhouse effect. Carbon dioxide methane and water vapour are the most important greenhouse gases.

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How would decreasing the percentage of greenhouse gases affect the amount of infrared radiation?

How would decreasing the percentage of greenhouse gases affect the amount of infrared radiation reflected by the atmosphere back toward Earth? The amount of infrared radiation would decrease.

Why is co2 considered the main greenhouse gas quizlet?

Terms in this set (3) why is carbon dioxide considered the main greenhouse gas? It is far more abundant in the atmosphere so it contributes more to the greenhouse effect. Moreover greenhouse gas emissions from human activity consist mostly of carbon carbon dioxide.

How is the amount of infrared radiation an object emits related to the objects temperature?

Even objects that we think of as being very cold such as an ice cube emit infrared. When an object is not quite hot enough to radiate visible light it will emit most of its energy in the infrared. … The warmer the object the more infrared radiation it emits.

How does the amount of radiation emitted by the Earth differ from that emitted by the sun?

How does the amount of radiation emitted by the earth differ from that emitted by the sun? The earth emits most of its radiation at a longer wavellenghts between about 5 and 25 um while the sun emits the majority of its radiation at wavelenghts less than 2um.

What measures the radiation given off by earth?

Term Surface Report Definition Describes measurements of weather variables on Earths surface.
Term Doppler radar Definition detects precipitation as well as the movement of small particles
Term satellite Definition orbit about 35 000 km above Earth
Term satellite Definition measures the radiation given off by earth

How does convection affects the temperature of the Earth?

Convection is a vital process which helps to redistribute energy away from hotter areas to cooler areas of the Earth aiding temperature circulation and reducing sharp temperature differences.

How the 3 major process of heat transfer affect the temperature of the Earth?

Heat can be transferred by three processes: conduction convection and radiation. Radiation is the least important mode of heat transport in the Earth. The process of heat exchange between the Sun and the Earth through radiation controls the temperatures at the Earth’s surface.

What are the two factors that affect conduction on the Earth surface?

Thanks to physics we know that conduction is affected by temperature difference the area of conduction the distance the heat must travel and the amount of time that passes.

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