Доклады Академии наукДоклады Академии наук0869-5652The Russian Academy of Sciences1884610.31857/S0869-56524895502-505Research ArticleProtons of radiation belts as a source of hydrogen in the Earth’s atmosphereLapshinV. B.lapshin-vb1@mail.ruIvanovM. S.lapshin-vb1@mail.ruKotonaevaN. G.kongt@yandex.ruBurovV. A.lapshin-vb1@mail.ruRepinA. Yu.lapshin-vb1@mail.ruInstitute of Applied Geophysics2012201948955025052112201921122019Copyright © 2019, Russian academy of sciences2019<p class="a"><span lang="EN-US">A scenario is proposed for replenishing the Earths exosphere with atomic hydrogen of cosmic origin. An assessment was made and the coincidence of the total atomic hydrogen content in the exosphere with the number of protons (after thermolization converted into hydrogen ions) precipitated in the SAA zone during the year according to the data of the Meteor M and NOAA‑19 satellites was confirmed. The observed coincidence indicates that the rates of replenishment of hydrogen due to precipitation from radiation belts and dissipation into outer space coincide in order of magnitude. It is concluded that the exosphere hydrogen is mainly of cosmic origin and its main source is the thermalized protons of galactic cosmic rays, solar cosmic rays and partially solar wind.</span></p>protons of radiation beltgalactic cosmic rayssolar cosmic rayssolar windатомарный водородэкзосфера Землипротоны солнечных и галактических космических лучей и солнечного ветра[Бакулин П.И., Кононович Е.В., Мороз П.И. Общий курс астрономии. М.: Наука, 1977. 544 с.][Бьютнер Э.К. // ДАН. 1959. Т. 12. № 1. С. 53-56.][Скуридин Г.А., Плетнев В.Д., Шалимов В.П., Швачунов И.Н. // Земля и Вселенная. 1965. № 4. С. 12-23.][Гальпер А.М. // Сорос. образ. журн. 1999. № 6. С. 75-81. http://www.kosmofizika.ru/abmn/galper/galper.htm][Редерер Х. Динамика радиации, захваченной геомагнитным полем: Пер. с англ. М.: Мир, 1972. 192 с.][База данных NOAA. https://satdat.ngdc.noaa.gov/sem/ poes/data/ plots_OLD/maps/png/2012/01/cylindrical/][Пинус Н.З., Шметер С.М. Аэрология. Л.: Гидрометеорологическое издательство, 1965. 645 с.][Мороз В.И. Физика планет. М.: Наука, 1967. 496 с.]