Results 41 to 50 of about 145,192 (165)

THE UPPER ATMOSPHERE OF HD17156b [PDF]

open access: yesThe Astrophysical Journal, 2009
31 pages, 42 eps ...
Koskinen, T. T.   +2 more
openaire   +2 more sources

Investigations of Atmospheric Waves in the Earth Lower Ionosphere by Means of the Method of the Creation of the Artificial Periodic Irregularities of the Ionospheric Plasma

open access: yesAtmosphere, 2019
We present results of the studies of internal gravity waves based on altitude-time dependences of the temperature and the density of the neutral component and the velocity of the vertical plasma motion at altitudes of the lower ionosphere (60−130 ...
Nataliya V. Bakhmetieva   +3 more
doaj   +1 more source

Interannual dynamics in intensity of mesoscale hydroxyl nightglow variations over Almaty

open access: yesSolar-Terrestrial Physics, 2018
The method of digital difference filters is applied to the data analysis of SATI observations of hydroxyl nightglow intensity and rotational temperature at altitudes 85–90 km over Almaty (43°03' N, 76°58' E), Kazakhstan, in 2010–2017. We examine seasonal
Popov А.А.   +3 more
doaj   +1 more source

Ionospheric electron content: the European perspective

open access: yesAnnals of Geophysics, 1998
The electron content of the ionosphere is an important quantity which indicates overall ionization. It is measured by means of propagation effects on radio signals which penetrate the ionosphere. In Europe relevant investigations started after the launch
R. Leitinger
doaj   +1 more source

Investigation of the Influence of Atmospheric Scattering on Photolysis Rates Using the Cloud-J Module

open access: yesAtmosphere
This study analyses the wide-band algorithm, Cloud-J v.8.0, from the point of view of the validity of the choice of wide spectral intervals to accelerate the calculations of photolysis rates in the lower and middle atmosphere, considering the features of
Anastasia Imanova   +4 more
doaj   +1 more source

Density Fluctuations in the Lower Thermosphere of Mars Retrieved From the ExoMars Trace Gas Orbiter (TGO) Aerobraking

open access: yesAtmosphere, 2019
The upper atmosphere of Mars is constantly perturbed by small-scale gravity waves propagating from below. As gravity waves strongly affect the large-scale dynamics and thermal state, constraining their statistical characteristics is of great importance ...
David Jesch   +4 more
doaj   +1 more source

LOCAL FITS OF SIGNALS WITH ASYMPTOTIC BRANCHES

open access: yesOdessa Astronomical Publications, 2017
The method of "asymptotic parabola" fit is described, its analytical properties are discussed in comparison with other types of fits. The method is effective for the (possibly highly asymmetric) signals with practically linear ascending and descending ...
V. I. Marsakova, I. L. Andronov
doaj   +1 more source

Meteor trail drift research based on baseline observations

open access: yesSolar-Terrestrial Physics, 2019
We analyze the results of a rare long-lived quasisymmetric ellipsoidal-annular meteor trail recorded on November 18, 2017 by two optical all-sky cameras, spaced at a distance of 150 km. The analysis is based on astrometric processing results with the use
Ivanov K.I.   +4 more
doaj   +1 more source

Observations of Atmospheric Tides in the Middle and Upper Atmosphere of Mars From MAVEN and MRO. [PDF]

open access: yesJ Geophys Res Planets, 2022
Kumar A   +4 more
europepmc   +1 more source

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