Results 41 to 50 of about 127,101 (245)

Upper atmospheres and ionospheres of planets and satellites

open access: yes, 2017
The upper atmospheres of the planets and their satellites are more directly exposed to sunlight and solar wind particles than the surface or the deeper atmospheric layers.
A Bhardwaj   +109 more
core   +1 more source

Reflection and transmission in the ionosphere considering collisions in a first approximation [PDF]

open access: yes, 2008
Reflection and transmission coefficients (R and T) of high frequency waves propagating in the ionosphere are studied taking collisions into account.
Aydogdu, Mehmet   +2 more
core   +1 more source

Ionospheric conductivity effects on electrostatic field penetration into the ionosphere [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2008
Abstract. The classic approach to calculate the electrostatic field penetration, from the Earth's surface into the ionosphere, is to consider the following equation ∇·(σ·∇Φ)=0 where σ and Φ are the electric conductivity and the potential of the electric field, respectively.
Valery V. Denisenko   +10 more
openaire   +3 more sources

Electromagnetic atmosphere-plasma coupling: the global atmospheric electric circuit [PDF]

open access: yes, 2011
A description is given of the global atmospheric electric circuit operating between the Earth’s surface and the ionosphere. Attention is drawn to the huge range of horizontal and vertical spatial scales, ranging from 10−9 m to 1012 m, concerned with the ...
Harrison, R. Giles, Rycroft, Michael J.
core   +1 more source

The Influence of Sudden Stratospheric Warming on the Development of Ionospheric Storms: The Alma-Ata Ground-Based Ionosonde Observations

open access: yesAtmosphere
This paper examines the response of the ionosphere to the impact of two moderate geomagnetic storms observed on January 17 and 26–27, 2013, under conditions of strong sudden stratospheric warming.
Galina Gordiyenko   +3 more
doaj   +1 more source

Observations of the Ionosphere Using the Tiny Ionospheric Photometer

open access: yesTerrestrial, Atmospheric and Oceanic Sciences, 2009
The Tiny Ionospheric Photometer (TIP) on the Constellation Observing System for Meteorology, Ionosphere, and Climate (FORMOSAT-3/COSMIC) characterizes the nighttime ionosphere using 135.6-nm radiative recombination emission. TIP measures horizontal structure of the ionosphere with high precision and high spatial resolution.
Kenneth F. Dymond   +7 more
openaire   +3 more sources

Method and apparatus for calibrating the ionosphere and application to surveillance of geophysical events [PDF]

open access: yes, 1984
The columnar electron content of the ionosphere between a spacecraft and a receiver is measured in realtime by cross correlating two coherently modulated signals transmitted at different frequencies (L1,L2) from the spacecraft to the receiver using a ...
Macdoran, P. F.
core   +1 more source

Theory of the ionosphere [PDF]

open access: yesTerrestrial Magnetism and Atmospheric Electricity, 1935
Introduction—During the past ten years the ionization in the reaches of the atmosphere at several hundred kilometers above sea‐level has been explored by means of radio waves. Concurrently with the experimental investigations various possible causes of the ionization have been examined from the theoretical standpoint and this in turn has called for ...
openaire   +2 more sources

Application of Artificial Intelligence in Landslide Susceptibility Assessment: Review of Recent Progress

open access: yesRemote Sensing
In the current work, authors reviewed the latest research results in landslide susceptibility mapping (LSM) using artificial intelligence (AI) methods.
Muratbek Kudaibergenov   +7 more
doaj   +1 more source

VARIATIONS OF IONOSPHERIC PARAMETERS OVER ALMATY (KAZAKHSTAN) IN 1999–2013

open access: yesSolar-Terrestrial Physics, 2019
The paper presents the results of a study of the behavior of ionospheric parameters of the total electron content, I(t), and electron density in the maximum F2 layer, Nm, over Almaty (Kazakhstan) [43.25° N; 76.92° E] in 1999–2013. The time interval under
Mukasheva S.N.   +2 more
doaj   +1 more source

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