{"title":"Multifractal analysis of ionospheric F-layer dynamics at Jataí (lat. 17°52′. long. 51°43′), Brazil","authors":"M.J.A. Bolzan, E.A. Barbosa, P.R. da Silva","doi":"10.1016/j.asr.2025.02.043","DOIUrl":null,"url":null,"abstract":"<div><div>The virtual height of the F-layer ionosphere, <span><math><mrow><mi>h</mi><mo>′</mo><mi>F</mi></mrow></math></span>, is an important parameter to study in order to gain insight into its variability over the course of a year. Accordingly, the multifractal formalism was employed over the course of a year’s data set to gain insight into the underlying physical processes occurring in an environment characterised by significant intermittent activity. Moreover, the multifractal approach applied to this data demonstrates that measuring intermittency phenomena at different scales is crucial. The ionosphere layer consistently exhibits multifractal characteristics, irrespective of the energy source of the physical system, including coronal mass ejection (CME), planetary waves (PW), gravity waves (GW), and others. This evidence indicates that the ionosphere layer is also in a state out of equilibrium system, similar to that observed in the magnetosphere.</div></div>","PeriodicalId":50850,"journal":{"name":"Advances in Space Research","volume":"75 10","pages":"Pages 7645-7653"},"PeriodicalIF":2.8000,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advances in Space Research","FirstCategoryId":"89","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0273117725001784","RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ASTRONOMY & ASTROPHYSICS","Score":null,"Total":0}
引用次数: 0
Abstract
The virtual height of the F-layer ionosphere, , is an important parameter to study in order to gain insight into its variability over the course of a year. Accordingly, the multifractal formalism was employed over the course of a year’s data set to gain insight into the underlying physical processes occurring in an environment characterised by significant intermittent activity. Moreover, the multifractal approach applied to this data demonstrates that measuring intermittency phenomena at different scales is crucial. The ionosphere layer consistently exhibits multifractal characteristics, irrespective of the energy source of the physical system, including coronal mass ejection (CME), planetary waves (PW), gravity waves (GW), and others. This evidence indicates that the ionosphere layer is also in a state out of equilibrium system, similar to that observed in the magnetosphere.
期刊介绍:
The COSPAR publication Advances in Space Research (ASR) is an open journal covering all areas of space research including: space studies of the Earth''s surface, meteorology, climate, the Earth-Moon system, planets and small bodies of the solar system, upper atmospheres, ionospheres and magnetospheres of the Earth and planets including reference atmospheres, space plasmas in the solar system, astrophysics from space, materials sciences in space, fundamental physics in space, space debris, space weather, Earth observations of space phenomena, etc.
NB: Please note that manuscripts related to life sciences as related to space are no more accepted for submission to Advances in Space Research. Such manuscripts should now be submitted to the new COSPAR Journal Life Sciences in Space Research (LSSR).
All submissions are reviewed by two scientists in the field. COSPAR is an interdisciplinary scientific organization concerned with the progress of space research on an international scale. Operating under the rules of ICSU, COSPAR ignores political considerations and considers all questions solely from the scientific viewpoint.