Results 81 to 90 of about 6,139 (217)

Near-Real-Time Global Thermospheric Density Variations Unveiled by Starlink Ephemeris

Remote Sensing
Previous efforts to retrieve thermospheric density using satellite payloads have been limited to a small number of satellites equipped with GNSS (Global Navigation Satellite System) receivers and accelerometers.
Zhuoliang Ou, Jiahao Zhong, Yongqiang Hao, Ruoxi Li, Xin Wan, Kang Wang, Jiawen Chen, Hao Han, Xingyan Song, Wenyu Du, Yanyan Tang   +10 more
doaj   +1 more source

Uncertainty quantification techniques for data-driven space weather modeling: thermospheric density application. [PDF]

Sci Rep, 2022
Licata RJ, Mehta PM.
europepmc   +1 more source

Study of dynamics of minor constituents in the thermosphere, addendum [PDF]

Numerical studies of a model of the earth's thermosphere are presented. The distribution of thermospheric helium was investigated. Changes in the global transport of helium under solstice conditions caused by a small increase in the latitudes at which ...
Christopher, L. A., Straus, J. M.
core   +1 more source

Upper atmospheres and ionospheres of planets and satellites

, 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, A García Muñoz, A Mahieux, A Pätzold, A Seiff, A Sánchez-Lavega, A-S Wong, AJ Coates, AJ Friedson, AJ Kliore, AJ Kliore, AN Volkov, BM Jakosky, BM Jakosky, CD Parkinson, CGA Smith, CGA Smith, D Grodent, D Snowden, D Snowden, DC Catling, DL Huestis, DM Hunten, DP Hinson, E Lellouch, F González-Galindo, F Herbert, FJ Crary, GF Lindal, GF Lindal, GF Lindal, GM Keating, GMP Schubert, H Feuchtgruber, H Lammer, HB Niemann, ICF Mueller-Wodarg, ICF Müller-Wodarg, ICF Müller-Wodarg, ICF Müller-Wodarg, J Cui, J O’Donoghue, J-E Wahlund, J. M. Grebowsky, JEP Connerney, JH Waite Jr, JI Moses, JI Moses, JL Bertaux, JL Fox, JL Fox, JL Fox, K Dennerl, KI Matcheva, KL Miller, L Ben-Jaffel, LA Young, LN Fletcher, M Fulchignoni, MC Liang, MF Vogt, MH Rees, MH Stevens, N Mangold, NM Schneider, P Drossart, P Lavvas, P Lavvas, P Lavvas, P Withers, P Withers, P Withers, RJ Vervack Jr, RK Choudhary, RR Meier, RT Clancy, RT Clancy, RV Yelle, RV Yelle, RV Yelle, RV Yelle, RV Yelle, RW Schunk, S Miller, S Miller, SG Edgington, SJ Bauer, SV Badman, SW Bougher, SW Bougher, T Koskinen, T Majeed, T Majeed, TD Robinson, TE Cravens, TG Slanger, TH Zurbuchen, TJ Stubbs, TK Greathouse, TL Zhang, TT Koskinen, TT Koskinen, TT Koskinen, V Vuitton, V Vuitton, V. Vuitton, VA Krasnopolsky, W Liu, YH Kim, YH Kim   +109 more
core   +1 more source

Thermospheric density from Starlink TLE: data analysis and preliminary results

Earth, Planets and Space
This study examines the feasibility of utilizing Two-Line Element (TLE) data from Starlink satellites to estimate thermospheric density. TLE data for satellites in orbital decay were collected from September 19 to November 6, 2024.
Mamoru Yamamoto, Takuya Sori
doaj   +1 more source

Thermospheric Heating and Cooling Times During Geomagnetic Storms, Including Extreme Events [PDF]

We present the first quantitative calculations of thermospheric heating and cooling times for geomagnetic storms of different intensity, including extreme events.
Oliveira, Denny M., Zesta, Eftyhia
core   +1 more source

Theoretical model for the latitude dependence of the thermospheric annual and semiannual variations [PDF]

A three-dimensional model for the annual and semiannual variations of the thermosphere is presented in which energy and diffusive mass transport associated with the global circulation are considered in a self-consistent form.
Mayr, H. G., Volland, H.
core   +1 more source

Coupling Between the Thermosphere and the Stratosphere: the Role of Nitric Oxide [PDF]

, 1984
In order to understand the lower ionosphere and its probable control by dynamical processes, the behavior of nitric oxide below 100 km was investigated. A two dimensional model with coupled chemical and dynamical processes was constructed.
Brasseur, G.
core   +1 more source

A Global Thermospheric Density Prediction Framework Based on a Deep Evidential Method

Space Weather
Thermospheric density influences the atmospheric drag and is crucial for space missions. This paper introduces a global thermospheric density prediction framework based on a deep evidential method. The proposed framework predicts thermospheric density at
Yiran Wang, Xiaoli Bai
doaj   +1 more source

A numerical study of a three dimensional spherical thermospheric density and wind model [PDF]

Numerical calculations of the generation and propagation of the two important fundamental symmetric tidal wave modes - the diurnal mode (1, 1, 1,) and the semidiurnal mode (2, 2, 2) - were performed applying a realistic model thermosphere and taking into
Mayr, H. G., Volland, H.
core   +1 more source