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ionosphere    音标拼音: [ɑɪj'ɑnəsfir] [ɑɪ'ɑnəsfir]
n. 电离层

电离层

ionosphere
n 1: the outer region of the Earth's atmosphere; contains a high
concentration of free electrons

ionosphere \ionosphere\ n.
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.
[WordNet 1.5 PJC]


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  • Ionosphere - Wikipedia
    The ionosphere is the ionized region of the atmosphere, important for radio propagation, and the magnetosphere is where the geomagnetic field controls particle motion
  • 10 Things to Know About the Ionosphere - Science@NASA
    The ionosphere stretches roughly 50 to 400 miles above Earth's surface, right at the edge of space Along with the neutral upper atmosphere, the ionosphere forms the boundary between Earth's lower atmosphere — where we live and breathe — and the vacuum of space
  • The Ionosphere - Center for Science Education
    Regions with higher concentrations of ions and free electrons occur at several different altitudes and are known, as a group, as the ionosphere There are three main regions of the ionosphere, called the D layer, the E layer, and the F layer
  • Ionosphere | atmospheric region | Britannica
    The ionosphere is a region of Earth's upper atmosphere, extending from about 80 to 300 kilometers (50 to 185 miles) in altitude It is characterized by the presence of ions and electrons, created when solar ultraviolet radiation removes electrons from atmospheric gases
  • Ionosphere | NOAA NWS Space Weather Prediction Center
    Due to spectral variability of the solar radiation and the density of various constituents in the atmosphere, there are layers are created within the ionosphere, called the D, E, and F-layers
  • JetStream Max: The Ionosphere - National Oceanic and Atmospheric . . .
    The absorption of radiation in the thermosphere is also responsible for the ionosphere, which is made of electrically charged (ionized) gas particles The ionosphere is located within the thermosphere and extends from 37 to 190 miles (60-300 km) above the Earth's surface
  • What is the ionosphere? (And who is Steve?) - Live Science
    Earth's ionosphere, a region of charged particles, stretches up to the border between Earth and space
  • Revolutions in Understanding the Ionosphere, Earth’s Interface . . . - NASA
    The ionosphere is a layer of charged particles in Earth’s atmosphere that extends from about 50 to 360 miles above the surface of Earth Processes in the ionosphere also create bright swaths of color in the sky, known as airglow
  • Ionosphere - an overview | ScienceDirect Topics
    The ionosphere is defined as a layer of the atmosphere that extends to about 430 miles and contains ions, playing a role in phenomena such as the formation of auroras
  • Ionosphere - ScienceDaily
    The ionosphere is the part of the atmosphere that is ionized by solar radiation It plays an important part in atmospheric electricity and forms the inner edge of the magnetosphere





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