Results 71 to 80 of about 274,087 (189)

Enhanced carbon dioxide outgassing from the eastern equatorial Atlantic during the last glacial [PDF]

, 2014
Biological productivity and carbon export in the equatorial Atlantic are thought to have been dramatically higher during the last glacial period than during the Holocene.
Foster, G.L., Sexton, P.F., Sexton, P. F., Foster, G. L.   +3 more
core   +1 more source

Modeling Storm‐Time Post‐Midnight Equatorial Plasma Bubbles With SAMI3‐WACCMX: Impacts of Neutral Winds, Thermospheric Composition, and Atmospheric Waves

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract This study investigates the roles of neutral winds, composition and atmospheric waves in storm‐time post‐midnight equatorial plasma bubble (EPB) development using the coupled SAMI3‐WACCMX model. Simulations reveal the formation of post‐midnight EPBs extending beyond 1,500 km in altitude and persisting into the post‐sunrise period.
Min‐Yang Chou, J. D. Huba, Jack Wang, Jia Yue, Maksym Petrenko   +4 more
wiley   +1 more source

Modeling the Multiwavelength Radiation Properties in Pulsar Dissipative Magnetospheres

The Astrophysical Journal
We explore the multiwavelength radiation properties of the light curves and energy spectra in the dissipative magnetospheres of pulsars. The dissipative magnetospheres are simulated by the pseudo-spectral method with the combined force-free and ...
Xiongbang Yang, Gang Cao
doaj   +1 more source

The Poleward Shift of the Equatorial Ionization Anomaly During the Main Phase of the Superstorm on 10 May 2024

Remote Sensing
On 10 May 2024, a super geomagnetic storm with a minimum Dst index of less than −400 nT occurred. It has attracted a significant amount of attention in the literature.
Di Bai, Yi-Jun Fu, Chun-Yong Yang, Ke-Deng Zhang, Yong-Qiang Cui   +4 more
semanticscholar   +1 more source

The Daily Atmospheric Ionospheric Limb Imager (DAILI) CubeSat Experiment

Journal of Geophysical Research: Space Physics, Volume 131, Issue 9, September 2026.
Abstract The Daily Atmospheric Ionospheric Limb Imager (DAILI) (Daily Atmospheric and Ionospheric Limb Imager) mission utilized a 6U CubeSat, deployed at about 410 km altitude in a 51‐degree orbit, to make simultaneous daytime limb measurements in two colors; at 630 nm to measure the OI (630 nm) redline and at 765 nm to measure the O2 ${\mathrm{O}}_{2}$
James H. Hecht, William Chavez, Andrew B. Christensen, Ian Collett, Geoffrey Crowley, Lynette J. Gelinas, Brian Habing, Brian Hardy, David Hinkley, Garrett Kinum, David Rock, Adam Vore, David Warren, Richard L. Walterscheid, Jeng‐Hwa Yee, Yongliang Zhang   +15 more
wiley   +1 more source

Global Circulation of Martian Ionospheric Currents Revealed by Magnetometer Data

AGU Advances, Volume 7, Issue 6, September 2026.
Abstract In the dynamo region of the Martian ionosphere, a large‐scale current is generated by charge separation: ions collide with neutrals while electrons preferentially gyrate around local magnetic field lines. Using MAVEN magnetometer data and a physics‐informed neural network constrained by Ampère's law and Gauss's law for magnetism (the Neural ...
T. Delcourt, A. Mittelholz
wiley   +1 more source

Can synchrotron radiation reveal the presence of dark sector around black hole?

European Physical Journal C: Particles and Fields
We studied synchrotron radiation of a massive charged under visible and hidden sector groups, moving in equatorial plane around spherically symmetric weakly magnetized black hole.
Marek Rogatko, Paritosh Verma
doaj   +1 more source

CIR-Driven Geomagnetic Storm and High-Intensity Long-Duration Continuous AE Activity (HILDCAA) Event: Effects on Brazilian Equatorial and Low-Latitude Ionosphere—Observations and Modeling

Atmosphere
This paper investigates the effects of a Corotating Interaction Region (CIR)/High-Speed Stream (HSS)-driven geomagnetic storm from 13 to 23 October 2003, preceding the well-known Halloween storm.
Samuel Abaidoo, Virginia Klausner, Claudia Maria Nicoli Candido, Valdir Gil Pillat, Stella Pires de Moraes Santos Ribeiro Godoy, Fabio Becker-Guedes, Josiely Aparecida do Espírito Santo Toledo, Laura Luiz Trigo   +7 more
doaj   +1 more source

First Observational Results of the Neutral Gas Mass Spectrometer Onboard the China's TianMu‐1 Constellation

Earth and Space Science, Volume 13, Issue 9, September 2026.
Abstract In situ observations of thermospheric composition have long been scarce, limiting our understanding of the upper atmosphere and its response to space weather. This study focuses on the Neutral Gas Mass Spectrometer (NGMS) onboard the TM19 and TM20 satellites of China's TianMu‐1 constellation, presenting the first systematic elaboration of its ...
Jiangzhao Ai, Yongping Li, Xianguo Zhang, Yueqiang Sun, Hong Zeng, Weihua Bai, Hongbo Wang, Xiaoliang Zheng, Jia Li, Yujie Wang, Yuanyuan Cao, Xinchun Tang   +11 more
wiley   +1 more source

GOLD Nighttime Limb Observations: A New Data Set for Investigating the Altitude‐Latitude Structure and Temporal Variability of the Equatorial Ionization Anomaly

Geophysical Research Letters
Using NASA's Global‐scale Observations of the Limb and Disk (GOLD)'s Dark Limb Mode (DLM) observations, we provide a multi‐year characterization of nighttime Equatorial Ionization Anomaly (EIA) morphology and variability.
Deepak K. Karan, Fazlul I. Laskar, Saurav Aryal, Richard W. Eastes, J. Scott Evans   +4 more
doaj   +1 more source