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Ionosphere vs. Troposphere: What's the Difference?

Ionosphere and Troposphere Definitions

Ionosphere

A region of the earth's atmosphere where ionization caused by incoming solar radiation affects the transmission of radio waves. It extends from a height of 70 kilometers (43 miles) to 400 kilometers (250 miles) above the surface.

Troposphere

The lowest region of the atmosphere between the earth's surface and the tropopause, characterized by decreasing temperature with increasing altitude.

Ionosphere

The part of the Earth's atmosphere beginning at an altitude of about 50 kilometers (31 miles) and extending outward 500 kilometers (310 miles) or more.

Troposphere

The lower levels of the atmosphere extending from the surface of the Earth or another celestial body up to the tropopause. It is characterized by convective air movements and a large vertical temperature change.

Ionosphere

The similar region of the atmosphere of another planet.
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Troposphere

The lowest atmospheric layer; from 4 to 11 miles high (depending on latitude)

Ionosphere

The outer region of the earth's atmosphere, beyond which is the exosphere; it contains a high concentration of free electrons and ions, and extends from about 50 miles to about 250 miles above the earth's surface, but the height shows daily and seasonal variation, and the composition of the particles in the ionosphere is also affected by events such as solar flares.

Ionosphere

The outer region of the Earth's atmosphere; contains a high concentration of free electrons

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