IONOSPHERIC VARIATIONS OVER INDIAN LOW LATITUDES

+91-7667918914 iarjset@gmail.com 0 Items International Advanced Research Journal in Science, Engineering and Technology A Monthly Peer-Reviewed Multidisciplinary Journal ISSN Online 2393-8021 ISSN Print 2394-1588 Since 2014 Home About About IARJSET Aims and Scope Editorial Board Editorial Policies Publication Ethics Publication Policies Indexing and Abstracting Citation Index License Information Authors How can I publish my paper? Instructions to Authors Benefits to Authors Why Publish in IARJSET Call for Papers Check my Paper status Publication Fee Details Publication Fee Mode FAQs Author Testimonials Reviewers Topics Peer Review Current Issue & Archives Indexing FAQ’s Contact Select Page IONOSPHERIC VARIATIONS OVER INDIAN LOW LATITUDES Dr.A.Mahesh Kumar

Abstract: Ionosphere is being used by numerous communication systems to reflect radio signals over long distances. The critical frequency (foF2) is the preventive frequency at or lower which a radio wave is reflected by ionosphere in HF radio propagation. The atmosphere can be divided vertically into zones based on changes that occur with altitude as Troposphere, Stratosphere, Mesosphere, Ionosphere and Thermosphere. The Earth's ionosphere exhibits complex variabilities with varying spatial and temporal scales. The ionosphere is also restricted by the solar zenith angle, manifesting diurnal, annual and semiannual variations. In the low latitudes, the thermospheric wind and electric field, in conjunction with Earth's magnetic field, play an important role in the redistribution of plasma. With regard to the low-latitude ionosphere, variabilities in the F- region have been given special attention due to their direct effects on communication / navigation systems. A large number of observational and modeling studies have been made to understand F region parameters, such as the critical frequency of the F2 layer, foF2 and the corresponding height, hmF2, in terms of variabilities in solar flux, magnetic field, neutral dynamical/ electro dynamical parameters. Key Words-- Ionospheric Variations, Critical frequency, FoF2 and hmF2, Solar ionizing flux, low-latitude, Ionospheric parameters, Troposphere, Stratosphere, Mesosphere, Ionosphere, Thermosphere. Downloads: | DOI: 10.17148/IARJSET.2021.8833 How to Cite: [1] Dr.A.Mahesh Kumar, "IONOSPHERIC VARIATIONS OVER INDIAN LOW LATITUDES," International Advanced Research Journal in Science, Engineering and Technology (IARJSET), DOI: IARJSET.2021.8833 Copy Citation Call for Papers Rapid Publication 24/7 April 2026 Submission: eMail paper now Notification: Immediate Publication: Immediately with eCertificates Frequency: Monthly Downloads Paper Format Copyright Form   Submit to iarjset@gmail.com or editor@iarjset.com   Submit My Paper Author CenterHow can I publish my paper? Publication Fee Why Publish in IARJSET Benefits to Authors Guidelines to Authors FAQs (Frequently Asked Questions) Author Testimonials IARJSET ManagementAims and Scope Call for Papers Editorial Board DOI and Crossref Publication Ethics Editorial Policies Publication Policies Subscription / Librarian Conference Special Issue Info ArchivesCurrent Issue & Archives Conference Special Issue Copyright © 2026 IARJSET This work is licensed under a Creative Commons Attribution 4.0 International License. Open chat