Results 111 to 120 of about 6,139 (217)

Temporal variations of thermospheric hydrogen derived from in situ measurements [PDF]

open access: yes
Diurnal variations of atomic hydrogen in thermosphere derived from Explorer 32 data and correlated with solar cycle, solar rotation, and earth ...
Brinton, H. C., Mayr, H. G.
core   +1 more source

Exospheric Temperature Measured by NASA-GOLD Under Low Solar Activity: Comparison With Other Data Sets. [PDF]

open access: yesJ Geophys Res Space Phys, 2022
Park J   +6 more
europepmc   +1 more source

Tidal coupling with the lower atmosphere (invited review) [PDF]

open access: yes
The various ways are reviewed in which propagating tidal components excited in the mesophere and below affect the structure of the thermosphere and ionosphere above 100 km. Dynamo effects are not treated here.
Forbes, J. M.
core   +1 more source

Thermospheric Density Prediction Based on Electron Density Assimilation

open access: yesChinese Journal of Space Science, 2019
Yanan ZHANG, Xiaocheng WU, Xiong HU
openaire   +1 more source

Thermospheric Density, Composition, and Temperature From GOES‐R/SUVI Solar Occultations

open access: yesSpace Weather
A new data set of atomic oxygen (O) and molecular nitrogen (N2) number density profiles, along with thermospheric temperature profiles between 180 and 500 km, has been developed.
R. H. A. Sewell   +8 more
doaj   +1 more source

Orbital atmospheric physics and dynamics [PDF]

open access: yes
There are two ways of modeling the upper atmosphere. One is the empirical model that makes use of experimental data on means and excursions from the mean and fits the data in a self-consistent manner.
Killeen, Timothy, Roble, Raymond
core   +1 more source

Thermospheric density model biases at sunspot maximum

open access: yes, 2010
A previous study (Pardini C., Anselmo L, Moe K., Moe M.M., Drag and energy accommodation coefficients during sunspot maximum, Adv. Space Res., 2009, doi:10.1016/j.asr.2009.08.034), including ten satellites with altitudes between 200 and 630 km, has yielded values for the energy accommodation coefficient as well as for the physical drag coefficient as a
Pardini, Carmen [1]   +2 more
openaire   +2 more sources

Seasonal Variation of Thermospheric Composition Observed by NASA GOLD. [PDF]

open access: yesJ Geophys Res Space Phys, 2022
Qian L   +5 more
europepmc   +1 more source

Wave propagation and earth satellite radio emission studies [PDF]

open access: yes
Radio propagation studies of the ionosphere using satellite radio beacons are described. The ionosphere is known as a dispersive, inhomogeneous, irregular and sometimes even nonlinear medium. After traversing through the ionosphere the radio signal bears
Flaherty, B. J., Liu, C. H., Yeh, K. C.
core   +1 more source

Evaluation of the Exospheric Temperature Modeling From Different Empirical Orthogonal Functions

open access: yesSpace Weather
In this paper, we constructed the Exospheric Temperature Models (ETM) on the basis of CHAMP and GRACE data using different empirical orthogonal functions (EOFs). The EOFs of the exospheric temperature can be derived either from satellite data directly or
Xu Yang   +8 more
doaj   +1 more source

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