Results 101 to 110 of about 2,463,978 (199)

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

J Geophys Res Space Phys, 2022
Park J, Evans JS, Eastes RW, Lumpe JD, van den Ijssel J, Englert CR, Stevens MH.   +6 more
europepmc   +1 more source

A swarm of femtosatellites for lower thermospheric density determination.

, 2015
The Lower thermosphere (between 80 and 350 km) is quite badly known due to the scarcity of satellites in this region. Nevertheless, it is an important region in several respects. Firstly, because its density determines when a falling satellite will reenter the dense layers of the atmosphere, thus affecting at reentry predictions. Secondly, it is highly
openaire   +2 more sources

The global, regional, and national burden attributable to low bone mineral density, 1990–2020: an analysis of a modifiable risk factor from the Global Burden of Disease Study 2021

BACKGROUND: Fractures related to osteoporosis and low bone mineral density lead to substantial morbidity, mortality, and cost to individuals and health systems.
GBD 2021 Low Bone Mineral Density Collaborators
core   +1 more source

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

Space 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, E. M. B. Thiemann, J. Lafyatis, K. Hallock, C. Bethge, M. Pilinski, E. K. Sutton, C. L. Peck, D. B. Seaton   +8 more
doaj   +1 more source

Thermospheric Density Prediction Based on Electron Density Assimilation

Chinese Journal of Space Science, 2019
Yanan ZHANG, Xiaocheng WU, Xiong HU
openaire   +1 more source

Evaluation of the Exospheric Temperature Modeling From Different Empirical Orthogonal Functions

Space 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, Libin Weng, Jiuhou Lei, Xiaoqian Zhu, Haibing Ruan, Dexin Ren, Zhongli Li, Ruoxi Li, Liangjie Chen   +8 more
doaj   +1 more source

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

J Geophys Res Space Phys, 2022
Qian L, Gan Q, Wang W, Cai X, Eastes R, Yue J.   +5 more
europepmc   +1 more source

Thermospheric Wind Response to March 2023 Storm: Largest Wind Ever Observed With a Fabry‐Perot Interferometer in Tromsø, Norway Since 2009

Space Weather
Solar cycles 24–25 were quiet until a geomagnetic storm with a Sym‐H index of −170 nT occurred in late March 2023. On March 23–24, a Fabry‐Perot interferometer (FPI; 630 nm) in Tromsø, Norway, recorded the highest thermospheric wind speed of over 500 m/s
S. Oyama, H. Vanhamäki, L. Cai, A. Shinbori, K. Hosokawa, T. Sakanoi, K. Shiokawa, A. Aikio, I. I. Virtanen, Y. Ogawa, Y. Miyoshi, S. Kurita, N. Nishitani   +12 more
doaj   +1 more source

Traveling Ionospheric Disturbances in the Vicinity of Storm-Enhanced Density at Midlatitudes. [PDF]

J Geophys Res Space Phys, 2022
Zhang SR, Nishimura Y, Erickson PJ, Aa E, Kil H, Deng Y, Thomas EG, Rideout W, Coster AJ, Kerr R, Kerr R, Vierinen J.   +11 more
europepmc   +1 more source

Pronounced Suppression and X-Pattern Merging of Equatorial Ionization Anomalies After the 2022 Tonga Volcano Eruption. [PDF]

J Geophys Res Space Phys, 2022
Aa E, Zhang SR, Wang W, Erickson PJ, Qian L, Eastes R, Harding BJ, Immel TJ, Karan DK, Daniell RE, Coster AJ, Goncharenko LP, Vierinen J, Cai X, Spicher A.   +14 more
europepmc   +1 more source