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piratical    
a. 海盗的;掠夺的

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  • Ionosphere - Wikipedia
    Total refraction can occur when the collision frequency of the ionosphere is less than the radio frequency, and if the electron density in the ionosphere is great enough
  • Ionosphere | NOAA NWS Space Weather Prediction Center
    Ionosphere Ionosphere The Ionosphere is part of Earth’s upper atmosphere, between 80 and about 600 km where Extreme UltraViolet (EUV) and x-ray solar radiation ionizes the atoms and molecules thus creating a layer of electrons the ionosphere is important because it reflects and modifies radio waves used for communication and navigation
  • 10 Things to Know About the Ionosphere - Science@NASA
    Because the ionosphere is made up of charged particles, it's uniquely reactive to the changing magnetic and electric conditions in space These conditions – along with other events like bursts of charged particles – are called space weather and usually connected to solar activity
  • (Ionosphere-Web) - Stanford University
    The ionosphere varies greatly because of changes in the two sources of ionization and be-cause it responds to changes in the neutral part of the upper atmosphere in which it is em-bedded
  • Ionosphere | Springer Nature Link
    Some planetary satellites are also known to possess reasonably dense ionospheres; these include Jupiter's satellite Io, Saturn's satellite Titan and Neptune's satellite Triton Comets are also known to contain ionospheric plasma
  • The Ionosphere
    Earth’s Ionosphere Right: ionization density changes by 100x day vs night, and 10x or more with solar cycle Ionosphere altitudes and layers have a lot to do with where solar radiation is absorbed!
  • Earth Ionosphere - an overview | ScienceDirect Topics
    The Earth's ionosphere is defined as the partially ionized region of the atmosphere, primarily composed of molecular nitrogen and oxygen, which forms due to photoionization and energetic particles
  • Basic Facts About the Ionosphere - ArizonaEnergy. org
    Because the Sun's light is responsible for most of the ionization, the ionosphere reaches maximum densities just after local noon In this region at altitudes where the highest densities occur, about one in every 1000 air particles is ionized
  • The Ionospheric Effect | GEOG 862: GPS and GNSS
    When gas molecules are ionized by the sun’s ultraviolet radiation, free electrons are released As their number and dispersion varies, so does the electron density in the ionosphere
  • The International Reference Ionosphere Model: A Review and Description . . .
    The electron density profile in Earth's ionosphere is characterized by several layers that are formed by the interaction of solar irradiance in the extreme ultraviolet (EUV) and X-ray range with the atomic and molecular gases of the terrestrial atmosphere





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