Kim Jong-il works for the Eternal Chairman of the National Defence Commission.
Aeronomy is the meteorological science of the upper region of the Earth 's or other planetary atmospheres , which relates to the atmospheric motions , its chemical composition and properties , and the reaction to it from the environment from space .. atmospheres. atmosphere. The term aeronomy was introduced by Sydney Chapman in a Letter to the Editor of Nature entitled Some Thoughts on Nomenclature in 1946 .. Sydney Chapman. Sydney Chapman ( mathematician ). Letter to the Editor. Letter to the Editor. Nature. Nature ( journal ). Studies within the subject also investigates the causes of dissociation or ionization processes .. dissociation. dissociation ( chemistry ). ionization. ionization. Today the term also includes the science of the corresponding regions of the atmospheres of other planets .. atmospheres. atmosphere. Aeronomy is a branch of atmospheric physics .. atmospheric physics. atmospheric physics. Research in aeronomy requires access to balloons , satellites , and sounding rockets which provide valuable data about this region of the atmosphere .. sounding rockets. sounding rockets. Atmospheric tides dominate the dynamics of the mesosphere and lower thermosphere , essential to understanding the atmosphere as a whole .. mesosphere. mesosphere. thermosphere. thermosphere. Other phenomena studied are upper-atmospheric lightning discharges , such as red sprites , sprite halos or blue jets .. upper-atmospheric lightning. upper-atmospheric lightning. red sprites. Sprite ( lightning )