Results 91 to 100 of about 8,248 (257)

WACCM‐RR: A Regionally‐Refined Version of the Whole Atmosphere Community Climate Model

Journal of Advances in Modeling Earth Systems, Volume 18, Issue 6, June 2026.
Abstract We introduce the Whole Atmosphere Community Climate Model with Regional Refinement (WACCM‐RR) and study the impact of directly resolving gravity waves (GWs) in the mesosphere and lower thermosphere (MLT; 70–140 km). Two simulations of 2010 are compared: “Non‐RR” is a standard WACCM case with a horizontal resolution of ∼1° (111 km) globally ...
M. M. Kupilas, D. R. Marsh, P. H. Lauritzen, C. S. Gardner, M. V. Guarino, J. V. Egan, W. Feng, J. M. C. Plane   +7 more
wiley   +1 more source

Terrestrial Analogs to Titan for Geophysical Research

Reviews of Geophysics, Volume 64, Issue 2, June 2026.
Abstract Saturn's moon Titan exhibits remarkable parallels to the Earth in many geophysical and geological processes not found elsewhere in the solar system at the present day. These include a nitrogen atmosphere with a condensible gas—methane—replacing the Earth's water, leading to an active meteorology with rainfall and surface manifestations ...
Conor A. Nixon, Samuel Birch, Audrey Chatain, Charles Cockell, Kendra K. Farnsworth, Peter M. Higgins, Stéphane Le Mouélic, Rosaly M. C. Lopes, Michael J. Malaska, Mohit Melwani Daswani, Kelly E. Miller, Catherine D. Neish, Olaf G. Podlaha, Jani Radebaugh, Lauren R. Schurmeier, Ashley Schoenfeld, Krista M. Soderlund, Anezina Solomonidou, Christophe Sotin, Nicholas A. Teanby, Tetsuya Tokano, Steven D. Vance   +21 more
wiley   +1 more source

Resolving thermospheric vertical wind ambiguities and energy processes

Frontiers in Astronomy and Space Sciences
This study applies a generalized vertical coordinate system approach alongside thermodynamic control volume analysis to explore the nuanced interpretations of energy transfer processes associated with vertical motion in the thermosphere.
Jeffrey P. Thayer, Jeffrey P. Thayer, Austin Coleman   +2 more
doaj   +1 more source

F‐Region Neutral Wind Response to Multiscale Geomagnetic Forcing During the 27 March 2014 Substorm Event

Space Weather, Volume 24, Issue 6, June 2026.
Abstract Techniques developed in the past few years enable the derivation of multiscale ion convection and particle precipitation patterns from high‐resolution ground‐based observations, and it has been shown in previous studies that such multiscale geomagnetic forcing can contribute significantly to ionospheric and thermospheric disturbances.
Cheng Sheng, Yue Deng, William A. Bristow, Yukitoshi Nishimura, Larry R. Lyons, Mark G. Conde, Christine Gabrielse   +6 more
wiley   +1 more source

Spatial sampling of the thermospheric vertical wind field at auroral latitudes [PDF]

, 2011
Results are presented from two nights of bistatic Doppler measurements of neutral thermospheric winds using Fabry!Perot spectrometers at Mawson and Davis stations in Antarctica.
P. Dyson, Davies, Theo, Conde, Mark, Kosch, Michael, M. J. Kosch, Dyson, Peter, M. Conde, C. Anderson, T. Davies, Anderson, Callum   +9 more
core   +1 more source

Improved Thermosphere Mass Density Recovery During the 5 April 2010 Geomagnetic Storm by Assimilating NO Cooling Rates in a Coupled Thermosphere-Ionosphere Model

, 2023
International audienceThe recovery of thermosphere mass density following geomagnetic storms is a result of competing heating and cooling processes. Simulations often underestimate the speed of the recovery.
Pedatella, Nicholas M., Yue, Xinan, Yu, Tingting, Astafyeva, Elvira, He, Jianhui, Ren, Zhipeng   +5 more
core   +1 more source

Solar EUV flux from the triple ionosophere PhotoMeter onboard the Fengyun-3E satellite

Earth and Planetary Physics
The Triple Ionosphere Photometer (TRIPM) is a scientific payload aboard the Fengyun-3E (FY-3E) satellite, which operates in a dawn−dusk orbit. It is primarily designed for nadir observations of airglow emissions at OI 135.6 nm and N2 Lyman-Birge-Hopfield
Fang Jiang, Tian Mao, JinSong Wang, XiuQing Hu, Qian Song, LiPing Fu, Nan Jia, TianFang Wang   +7 more
doaj   +1 more source

Space Weather Effects From Moderate to Severe Geomagnetic Storms in October 2024 Over the Latin American Sector

Space Weather, Volume 24, Issue 6, June 2026.
Abstract This study presents a detailed case study of the ionospheric impacts of moderate (G2) and severe (G4) geomagnetic storms over the Latin American sector, with particular emphasis on the formation and suppression of equatorial plasma bubbles (EPBs).
C. S. Carmo, L. Dai, C. M. Wrasse, D. Barros, H. Takahashi, J. R. Costa, L. F. R. Vital, P. R. Jauer, C. De La Jara, A. J. Carrasco, C. A. O. B. Figueiredo, C. Wang, H. Li, Z. Liu   +13 more
wiley   +1 more source

High‐Latitude GPS Position Error During Substorms

Space Weather, Volume 24, Issue 6, June 2026.
Abstract Substorms produce rapid fluctuations in Global Navigation Satellite System (GNSS) signals, leading to degraded positioning performance at high latitudes. This study investigates the correlation of auroral structures on Global Positioning System (GPS) Precise Point Positioning (PPP) error during three substorm events with different strengths ...
Weixuan Liao, Yukitoshi Nishimura, Waqar Younas, Wen Li, Keith M. Groves, Eric F. Donovan, Vassilis Angelopoulos   +6 more
wiley   +1 more source

An empirical model of long-term thermospheric density change

, 2012
Predicting the positions of satellites in Low Earth Orbit (LEO) requires a comprehensive understanding of the dynamic nature of the atmosphere. For objects in LEO the most significant orbit perturbation is atmospheric drag, which is a function of the ...
Saunders, Arrun, Saunders, A.
core