Geomagnetism and AeronomyGeomagnetism and AeronomyГеомагнетизм и аэрономия0016-79403034-5022The Russian Academy of Sciences65091710.31857/S0016794024040027RTUWURArticlesСтатьиResearch ArticleSome features of interacting solar wind disturbancesНекоторые особенности взаимодействующих возмущений солнечного ветраShlykN. S.ШлыкН. С.
Russian Federation
nshlyk@izmiran.ruBelovA. V.БеловА. В.
Russian Federation
nshlyk@izmiran.ruAbuninaM. A.АбунинаМ. А.
Russian Federation
nshlyk@izmiran.ruBelovS. M.БеловС. М.
Russian Federation
nshlyk@izmiran.ruAbuninA. A.АбунинА. А.
Russian Federation
nshlyk@izmiran.ruOlenevaV. A.ОленеваВ. А.
Russian Federation
nshlyk@izmiran.ruYankeV. G.ЯнкеВ. Г.
Russian Federation
nshlyk@izmiran.ruPushkov Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation, Russian Academy of SciencesИнститут земного магнетизма, ионосферы и распространения радиоволн им. Н.В. Пушкова РАН (ИЗМИРАН)23082024644ГЕОМАГНЕТИЗМ И АЭРОНОМИЯ46547801022025Copyright ©; 2024, Russian Academy of SciencesCopyright ©; 2024, Российская академия наук2024Russian Academy of SciencesРоссийская академия наукhttps://journals.eco-vector.com/0016-7940/article/view/650917

Using the updated Forbush Effects and Interplanetary Disturbances Database (https://tools.izmiran.ru/feid), an extensive analysis of the various characteristics of events caused by the influence of interacting solar wind disturbances on near-Earth space was carried out. In particular, the cases of different combinations of pair interaction of high-speed streams from coronal holes and coronal mass ejections over a long period from 1995 to 2022 are considered. Variations in the flux of galactic cosmic rays (with a rigidity of 10 GV), changes in the parameters of the interplanetary medium and geomagnetic activity are described. It is shown that the degree of mutual influence depends on the time between the registration of neighboring events, while the most pronounced changes in various parameters exist for events in which interaction occurred before reaching the Earth’s orbit. It has also been established that in interacting solar wind disturbances, not only the extrema of the parameters of cosmic rays, interplanetary medium and geomagnetic activity are subject to changes, but also their time profile.

С использованием обновленной базы данных Форбуш-эффектов и межпланетных возмущений (https://tools.izmiran.ru/feid) проведен обширный анализ различных характеристик событий, вызванных влиянием на околоземное космическое пространство взаимодействующих возмущений солнечного ветра. В частности, рассмотрены случаи разных комбинаций парного взаимодействия высокоскоростных потоков из корональных дыр и корональных выбросов массы за длительный период с 1995 по 2022 гг. Описаны вариации потока галактических космических лучей (жесткостью 10 ГВ), изменение параметров межпланетной среды и геомагнитной активности. Показано, что степень взаимного влияния зависит от времени между регистрацией соседних событий, при этом наиболее выраженные изменения различных параметров существуют для событий, взаимодействие которых произошло еще до достижения орбиты Земли. Также установлено, что во взаимодействующих возмущениях солнечного ветра изменениям подвержены не только экстремумы параметров космических лучей, межпланетной среды и геомагнитной активности, но и их временной профиль.

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