Results 31 to 40 of about 225 (104)

Thermospheric Wind in the lower F-region [PDF]

, 2016
第7回極域科学シンポジウム/横断セッション:[IM] 中空大気・熱圏11月30日（水）統計推理研究所 ...

core   +1 more source

Spatial distributions of nitric oxide in the Antarctic winter‐time middle atmosphere during geomagnetic storms [PDF]

, 2020
Energetic electron precipitation leads to increased nitric oxide (NO) production in the mesosphere and lower thermosphere. NO distributions in the winter time, high‐latitude Southern hemisphere atmosphere during geomagnetic storms are investigated.
Clilverd, M.A., Hervig, M.E., Marsh, D.R., Newnham, D.A., Rodger, C.J.   +4 more
core   +2 more sources

Unraveling Super Equatorial Plasma Bubbles (EPBs) Evolution During the 23 April 2023 Storm: Multi‐Instrument Observations and GITM‐SAMI3 Simulation

Space Weather, Volume 24, Issue 4, April 2026.
Abstract Storm‐time equatorial plasma bubble (EPB) dynamics play a critical role in space weather impacts on communication and navigation systems, yet the mechanisms governing their formation and evolution under storm conditions remain poorly understood.
Shasha Zou, Yulu Peng, Mary Smirnova, Grace Kwon, Zihan Wang, Joseph Huba, Aaron Ridley   +6 more
wiley   +1 more source

The Evolution of a Polar Cap Patch Into a Blob in the Nightside Ionosphere: Direct Observations of Multiple Blob Formation Mechanisms Acting Simultaneously on the Same Plasma

Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract A polar cap patch was observed to exit the polar cap to become a blob as it entered the auroral oval on the nightside of the Earth under moderately quiet geomagnetic conditions (Kp = 3−). Auroral particle precipitation led to an increase in the electron density of the blob.
S. J. Maguire, A. G. Wood, D. R. Themens, E. M. Henley, S. E. Milan, Y. Soobiah, K. Oksavik, W. J. Miloch, J. C. Coxon, M. G. Johnsen   +9 more
wiley   +1 more source

Ionospheric response during Tropical Cyclones-a brief review on Amphan and Nisarga

, 2023
Here, we explore the different characteristics of a possible coupling between tropospheric and ionospheric activities during the impact of tropical cyclones (TC) like Amphan and Nisarga in the Indian subcontinent.
Ayyagari, Deepthi, Das, Saurabh, Datta, Abhirup, Datta, Soumen   +3 more
core   +1 more source

Observation of Latitudinal Asymmetric Ionospheric Disturbances Induced by Typhoon YAGI (2024) Using the BeiDou GEO Satellite

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Typhoons, as intense atmospheric disturbances, are capable of significantly influencing ionospheric conditions, primarily through the excitation of gravity waves, which transfer energy into the ionosphere.
Jintao Wang, Jun Tang, Yue Sun, Liang Zhang, Wenfei Mao   +4 more
doaj   +1 more source

The transient IDEMIX model as a nonorographic gravity wave parameterization in an atmospheric circulation model

, 2023
The Internal wave Dissipation, Energy and Mixing (IDEMIX) model presents a novel way of parameterizing internal gravity waves in the atmosphere. Using a continuous full wave spectrum in the energy balance equation and integrating over all vertical ...
Achatz, U., Eden, C., Olbers, D., Quinn, B., Voelker, G. S.   +4 more
core  

Attitude control for satellites flying in VLEO using aerodynamic surfaces [PDF]

, 2020
This paper analyses the use of aerodynamic control surfaces, whether passive or active, in order to carry out very low Earth orbit (VLEO) attitude maneuver operations.
Becedas, J, Belkouchi, B, Binder, T, Boxberger, A, Conte, A, Crisp, NH, Dominguez, RM, Edmondson, S, Fasoulas, S, Garcia-Alminana, D, Gonzalez, D, Haigh, S, Hanessian, V, Heisserer, B, Herdrich, GH, Huyton, C, Kataria, D, Livadiotti, S, Lyons, RE, Morsbol, J, Munoz, C, Munoz, VC, Nieto, M, Oiko, VTA, Outlaw, R, Perez, JS, Roberts, PCE, Rodriguez-Donaire, S, Romano, F, Schwalber, A, Sinpetru, LA, Smith, K, Sureda, M, Traub, C, Villain, R, Worrall, SD   +35 more
core  

Activities of small‐scale gravity waves in the upper mesosphere observed from meteor radar at King Sejong Station, Antarctica (62.22°S, 58.78°W) and their potential sources [PDF]

, 2021
Gravity wave (GW) activities in the upper mesosphere (80–100 km) and their potential sources are investigated using meteor radar observations at King Sejong Station, Antarctica (KSS; 62.22°S, 58.78°W) during recent 14 years (2007–2020). GW activities are
Andrews D. G., Baumgaertner A. J. G., Beldon C. L., Beldon C. L., Dowdy A. J., Ern M., Ki M.‐O., Kim Y.‐H., Moffat‐Griffin T., Nappo C. J., Plougonven R., Scargle J. D., Yamashita C.   +12 more
core   +2 more sources

On the Seeding of Equatorial Plasma Bubbles by Longitudinal Variations in the Meridional Wind

Geophysical Research Letters, Volume 53, Issue 2, 28 January 2026.
Abstract We report results from SAMI3/WACCM‐X simulations that small‐scale (∼ ${\sim} $few 100 km) longitudinal variations in the meridional wind provide seeds to initiate equatorial plasma bubbles (EPBs). The meridional wind variations generate variations in the ion density along the magnetic field via ion‐neutral collisions.
J. D. Huba, N. Pedatella, H.‐L. Liu
wiley   +1 more source