Subarctic phenomena :: weather

Subarctic phenomenaAurora BorealisThe aurora has retentive fascinated people in northwesterlyern latitudes. The aurora was subject to practically mythology amongst Northern cultures. The first attempts to research the scientific origin of the aurora took throw in in the 18th century, when it was concluded that the aurora is tie in to magnetism.The aurora occurs in the high latitude regions of the arctic and antarctic. The auroras of the north and south ar related and named aurora borealis and aurora australis. The aurora is primarily seen in the sparsely inhabit high latitude part of the northern hemisphere, though on affair can be seen in lower latitudes. The aurora australis is not seen as often as the aurora borealis, because it takes place in a rattling sparsely populated part of the globe. Solar WindSolar leash is a plasmic-like substance that originates and the Sun. Solar wind travels approximately 200 to 1500 km per second. Solar plasma consists primarly of ionized h ydrogen and helium, which travel as protons and electrons. The protons are positively charged and electrons negatively charged and carry magnetic energy.Magnetosphere domain (and other planets with a magnetic field) has magnetosphere or so its atmosphere. The magnetosphere is a non-spherical area around the planet consisting of ions and electrons (plasma). The solar wind coming from the Sun is deflected by the magnetosphere. ascertain the shape of the magnetsophere in the diagram below, that the magnetosphere facing the Sun covers a some(prenominal) smaller area than the other side of Earth. The shape is determined by the flow of solar wind and Earths magnetic field.How the aurora is formedAuroras are formed when solar wind approaches Earth and is deflected by the magnetosphere. Since the plasmas in the solar wind and in the magnetosphere conduct electricity, and the moving solar wind causes a change in the magnetic field an electric current is bring on in the plasmas.The pheno menom itself occurs at Earths ionosphere, which occurs when the electric current flows through the ionosphere between the north and south poles. When this happens, the ionosphere acts as an ohmic resistor in which there is a voltage difference between the two poles (up to 200,000 V during the most unrelenting auroras).Ice FogWhat is it?Fog in the general sense of the intelligence information a cloud that is very close to the ground (such that it decreases visibility). Fog consists of peeing droplets suspended in air and occurs when water vapor is condensed.