Ionosphere - Wikipedia
The ionosphere is a shell of electrons and electrically charged atoms and molecules that surrounds the Earth, [18] stretching from a height of about 50 km (30 mi) to more than 1,000 km (600 mi). It exists primarily due to ultraviolet radiation from the Sun.
10 Things to Know About the Ionosphere - NASA Science
2019年12月10日 · 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 — …
ionosphere and magnetosphere - Encyclopedia Britannica
ionosphere and magnetosphere, regions of Earth’s atmosphere in which the number of electrically charged particles— ions and electrons —are large enough to affect the propagation of radio waves. The charged particles are created by the action of extraterrestrial radiation (mainly from the Sun) on neutral atoms and molecules of air.
Ionosphere | NASA Space Place – NASA Science for Kids
2024年12月5日 · What is the ionosphere? The ionosphere is a very active part of the atmosphere, and it grows and shrinks depending on the energy it absorbs from the Sun. The name ionosphere comes from the fact that gases in these layers are excited by solar radiation to form ions, which have an electrical charge.
Ionosphere | NOAA / NWS Space Weather Prediction Center
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 - 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.
Where Is The Ionosphere And What Is Its Function?
2019年11月1日 · The ionosphere is the layer of the Earth that is ionized by cosmic and solar radiation. It lies 46 to 621 miles above the Earth’s surface. The atoms in this layer have been stripped off one or more electrons by cosmic rays or intense energy from the sun and are therefore charged.
Ionosphere, Thermosphere & Mesosphere - NASA Science
NASA’s heliophysics researches the ionosphere-thermosphere-mesosphere region where our neutral atmosphere transitions into the ionized plasma of space. In this thin shell that surrounds our home planet, the atmosphere is in constant motion, shaped by the influence of both solar activity and changes in the lower atmosphere and in near-Earth space.
The Earth's Ionosphere - Stanford University
The ionosphere is defined as the layer of the Earth's atmosphere that is ionized by solar and cosmic radiation. It lies 75-1000 km (46-621 miles) above the Earth. (The Earth’s radius is 6370 km, so the thickness of the ionosphere is quite tiny compared with the size of Earth.)
Revolutions in Understanding the Ionosphere, Earth’s Interface ... - NASA
2016年12月14日 · Scientists from NASA and three universities have presented new discoveries about the way heat and energy move and manifest in the ionosphere, a region of Earth’s atmosphere that reacts to changes from both space above and Earth below.