https://cdn.earthdata.nasa.gov/conduit/upload/5182/KeywordsCommunityGuide_Baseline_v1_SIGNED_FINAL.pdf 23.7 2026-04-15T10:53:30.610Z https://gcmd.earthdata.nasa.gov/KeywordViewer/scheme/sciencekeywords/ba75172a-6965-40cf-bf3f-6c0af2f97dad ION CHEMISTRY/IONIZATION The process in which a neutral atom or molecule is given a net electricalcharge. The atomic process in which ions are produced by removing one or moreelectrons from an atom, ion, or molecule, typically be collisions with atoms orelectrons (collisional ionization), or by interaction with electromagneticradiation (photo-ionization). Reference: the Cambridge Encyclopedia od the Sun, The Cambridge UniversityPress Cambridge, CB2, 2RU, UK, 2001.