Results 21 to 30 of about 5,760 (194)

A Novel Technique for High-Precision Ionospheric VTEC Estimation and Prediction at the Equatorial Ionization Anomaly Region: A Case Study over Haikou Station

open access: yesRemote Sensing, 2023
This paper introduces a novel technique that uses observation data from GNSS to estimate the ionospheric vertical total electron content (VTEC) using the Kriging–Kalman method.
Hai-Ning Wang   +6 more
doaj   +1 more source

Preliminary Appraisal of a Correlation Between Glaciations and Large Igneous Provinces Over the Past 720 Million Years

open access: yesGeophysical Monograph Series, Page 169-190., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Nasrrddine Youbi   +9 more
wiley  

+1 more source

Occurrence of Ionospheric Equatorial Ionization Anomaly at 840 km Height Observed by the DMSP Satellites at Solar Maximum Dusk

open access: yesSpace Weather, 2021
Although it is accepted that the electron density double peaks of the Equatorial Ionization Anomaly (EIA) generally merge into a single‐peak with increasing altitude and thus the signature of EIA becomes inconspicuous in the higher topside ionosphere, it
Jiacheng Li   +6 more
doaj   +1 more source

Design and Testing of an Adaptive In-phase Magnetometer (AIMAG), the Equatorial-Electrojet-Detecting Fluxgate Magnetometer, for the CAS500-3 Satellite

open access: yesRemote Sensing, 2023
Ionospheric Anomaly Monitoring by Magnetometer And Plasma-probe (IAMMAP) is a suite of scientific instruments used in the Compact Advanced Satellite 500-3 (CAS 500-3), which is planned to be launched by the KSLV (Korean Space Launch Vehicle) in 2025. The
Seunguk Lee   +11 more
doaj   +1 more source

Ionospheric plasma caves under the equatorial ionization anomaly [PDF]

open access: yesJournal of Geophysical Research: Space Physics, 2012
This paper reports the existence of plasma caves, minima in the electron density located at 5–10° to the magnetic equator, in the bottomside ionosphere based on electron densities simulations from the International Reference Ionosphere (IRI‐2007) and clear evidences given by plasma density and drift measurements of the Dynamic Explorer 2 (DE 2 ...
I. T. Lee   +5 more
openaire   +1 more source

High resolution 2-D maps of OI 630.0 nm thermospheric dayglow from equatorial latitudes [PDF]

open access: yesAnnales Geophysicae, 1998
The first-ever high resolution 2-D maps of OI 630.0 nm dayglow obtained from equatorial latitudes clearly reveal the movement as a large-scale feature of the equatorial ionization anomaly (EIA).
D. Pallam Raju, R. Sridharan
doaj   +1 more source

Early Morning Equatorial Ionization Anomaly From GOLD Observations

open access: yesJournal of Geophysical Research: Space Physics, 2020
AbstractDuring geomagnetically quiet and solar minimum conditions, spatial variations of the early morning thermosphere‐ionosphere (TI) system are expected to be mainly governed by wave dynamics. To study the postmidnight dynamical coupling, we investigated the early morning equatorial ionization anomaly (EIA) using Global‐scale Observations of the ...
F. I. Laskar   +12 more
openaire   +2 more sources

Science Objectives and Design of Ionospheric Monitoring Instrument Ionospheric Anomaly Monitoring by Magnetometer And Plasmaprobe (IAMMAP) for the CAS500-3 Satellite

open access: yesJournal of Astronomy and Space Sciences, 2022
The Ionospheric Anomaly Monitoring by Magnetometer And Plasma-probe (IAMMAP) is one of the scientific instruments for the Compact Advanced Satellite 500-3 (CAS 500-3) which is planned to be launched by Korean Space Launch Vehicle in 2024.
Kwangsun Ryu   +12 more
doaj   +1 more source

Mastery issues and teaching approaches for the electrical technology certificate programme at community colleges on the topic of measuring instruments [PDF]

open access: yes, 2022
The teaching approach has a significant impact on a student's ability to master a course. The purpose of this study is to identify the level of competence and explore the teaching approaches used by community college lecturers for the Electrical ...
Abd Hamid, Ruhiana Idayu   +6 more
core   +1 more source

Mapping Ethiopian ionosphere using ground-based GPS TEC

open access: yesCogent Engineering, 2022
The objective of this paper is to map regional ionospheric Total Electron Content (vTEC) using Global Positioning System (GPS) data from 10 different GPS receiver sites in Ethiopia, to capture ionospheric phenomena (such as storm effect, Equatorial ...
Seydie Mebrie, Tsegaye Kassa
doaj   +1 more source

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