Results 61 to 70 of about 2,463,978 (199)

The Ionosphere as an Operational Constraint on Space‐Based Solar Power

Space Weather, Volume 24, Issue 9, September 2026.
Abstract This commentary argues that there is an urgent need to develop a scientific consensus on how microwave beams from space‐based solar power (SBSP) satellites will interact with plasma in the ionosphere. Whilst the SBSP concept dates back to the 1970s, it is now gaining traction around the world as a technology that could contribute baseline ...
Mike Hapgood
wiley   +1 more source

The 2022 Starlink Geomagnetic Storms: Global Thermospheric Response to a High‐Latitude Ionospheric Driver

Space Weather
In this study, we present ionospheric observations of field‐aligned currents from AMPERE and the ESA Swarm A satellite, in conjunction with high‐resolution thermospheric density measurements from accelerometers on board Swarm C and GRACE‐FO, for the ...
D. D. Billett, K. Sartipzadeh, M. F. Ivarsen, E. Iorfida, E. Doornbos, E. C. Kalafatoglu Eyiguler, K. Pandey, K. A. McWilliams   +7 more
doaj   +1 more source

Long‐Lived Equatorial Plasma Bubbles Persisting Into the Afternoon Over the Pacific Sector During the Recovery Phase of the April 2023 Geomagnetic Storm

Space Weather, Volume 24, Issue 9, September 2026.
Abstract Equatorial plasma bubbles (EPBs) are typically nighttime ionospheric irregularities, and their persistence into daytime sectors remains insufficiently understood. Here, we investigate long‐lived EPB‐related plasma depletion structures over the Pacific sector during the recovery phase of the 23–25 April 2023 geomagnetic storm using Formosa ...
Hailun Ye, Wen Yi, Jianfei Wu, Bingkun Yu, Penghao Tian, Xianghui Xue, Yajun Zhu, Jianyuan Wang, Jianyong Lu, Jian Li, Chong Wang, Tingdi Chen, Xiankang Dou   +12 more
wiley   +1 more source

Thermospheric density structures over the polar regions observed with CHAMP [PDF]

Annales Geophysicae, 2005
Abstract. We report on the unexpected detection of considerable structure in high latitude thermospheric densities, as derived from an accelerometer onboard the CHAMP satellite. The width of the structures, which can either be maxima or minima, varies between a few hundred km and 2000 km. The amplitudes of these density extrema can reach 50% of ambient.
Schlegel, K., Lühr, H., St.-Maurice, J., Crowley, G., Hackert, C.   +4 more
openaire   +6 more sources

The Impacts of Zonal and Meridional Winds on the Observed Occurrence Rate of Equatorial Plasma Bubbles

Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract Post‐sunset equatorial plasma bubble (EPB) formation is believe to be influenced by factors including thermospheric neutral winds. This study characterizes pre‐sunset neutral winds observed by ICON on EPB occurrences observed by GOLD over the east Atlantic.
V. J. Adkins, S. L. England, A. W. Stephan   +2 more
wiley   +1 more source

Thermospheric Density Response to the Solar Activity and QBO

, 2023
In this study, we discuss the thermospheric density response to the solar activity and QBO. By using the wavelet power spectrum method, the thermospheric density from 1967 to 2013 shows ~11-year period, semiannual and annual variations, while the seasonal variation is usually more significant under high solar activity conditions.
Bo Li, Ruifei Cui, Libin Weng, Jianfang Fei   +3 more
openaire   +1 more source

Post‐Sunset Merging of Equatorial Ionization Anomaly Crests Into a Single Peak Over ∼35° Longitude During the 19 January 2026 Geomagnetic Superstorm

Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract We investigate the nighttime equatorial ionosphere during the 19 January 2026 geomagnetic storm using Global‐scale Observations of the Limb and Disk OI 135.6 nm observations and ground‐based GPS Total Electron Content. The observations reveal a pronounced longitudinal asymmetry in the post‐sunset equatorial ionization anomaly (EIA).
Deepak K. Karan, Richard W. Eastes, Kuldeep Pandey, Wenbin Wang, Carlos R. Martinis, Robert E. Daniell, Quan Gan   +6 more
wiley   +1 more source

Gravity Wave Energy Baselines (∼30–110 km) Established From Lidar Observations at McMurdo (77.84°S, 166.67°E), Antarctica: Energy Dissipation and Constituent Diffusion

Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract Lidar observations above McMurdo, Antarctica from 2011 to 2024 are used to characterize gravity wave (GWs) potential energies (Ep ${E}_{p}$) in the mesosphere and lower thermosphere (MLT). Alongside characterizations in the middle atmosphere (30–70 km), the GW baselines show dissipation at all altitudes from 30 to 110 km.
Jackson Jandreau, Xinzhao Chu, Yingfei Chen, Chester S. Gardner   +3 more
wiley   +1 more source

First E region observations of mesoscale neutral wind interaction with auroral arcs [PDF]

, 2010
We report the first observations of E region neutral wind fields and their interaction with auroral arcs at mesoscale spatial resolution during geomagnetically quiet conditions at Mawson, Antarctica.
Fiori, R. A. D., Kosch, Mike J., Anderson, C., Makarevich, R. A., Carter, B. A., Davies, T., Conde, M., Dyson, P. L.   +7 more
core   +3 more sources

Climatology of the equatorial thermospheric mass density anomaly [PDF]

Journal of Geophysical Research: Space Physics, 2007
The equatorial anomaly is an interesting and important feature of the Earth's thermosphere‐ionosphere coupling in tropical regions. It is an anomalous latitudinal distribution found in both the ionized and unionized part of the atmosphere. Its equinox configuration consists of a minimum near the dip equator flanked by two maxima on both sides.
Liu, Huixin, Lühr, Hermann, Watanabe, Shigeto   +2 more
openaire   +3 more sources