Results 81 to 90 of about 549 (204)

The Life Cycle of a Stratospheric Smoke Plume as Seen From EarthCARE—Tracking a Plume From Canada to Europe

Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract At the end of May 2025, extremely strong wildfires in Canada produced several pyrocumulonimbus clouds lifting the smoke particles up to the lower stratosphere. Stratospheric aerosol optical depths of more than 2.5 were observed by the ATmospheric LiDAR (ATLID) onboard of the Earth Cloud, Aerosol and Radiation Explorer (EarthCARE) satellite ...
Moritz Haarig, Holger Baars, Leonard König, David P. Donovan, Albert Ansmann, Sergey Khaykin, Romain Ceolato, Benedikt Gast, Crisofer Jimenez, Athena A. Floutsi, Robin J. Hogan, Annabel Chantry, Fabien Marnas, Johanna Roschke, Gerd‐Jan van Zadelhoff, Ulla Wandinger   +15 more
wiley   +1 more source

Flux Cancellation Leading to CME Filament Eruptions [PDF]

, 2016
Solar filaments are strands of relatively cool, dense plasma magnetically suspended in the lower density hotter solar corona. They trace magnetic polarity inversion lines (PILs) in the photosphere below, and are supported against gravity at heights of up
Panesar, Navdeep K., Sterling, Alphonse C., Popescu, Roxana M., Moore, Ronald L.   +3 more
core   +1 more source

Solar Flares Triggered by a Filament Peeling Process Revealed by High-resolution GST Hα Observations

The Astrophysical Journal Letters
The dynamic structures of solar filaments prior to solar flares provide important physical clues about the onset of solar eruptions. Observations of those structures under subarcsecond resolution with high cadence are rare.
Mia Mancuso, Ju Jing, Haimin Wang, Wenda Cao   +3 more
doaj   +1 more source

Mini-filaments – small-scale analogues of solar eruptive events? [PDF]

Proceedings of the International Astronomical Union, 2008
AbstractMini-filaments are a small-scale phenomenon of the solar chromosphere, which frequently occur across the entire disk (see e.g. Wang, Li, Denker, et al. 2000). They share a variety of characteristics with their larger-scale cousins and may serve as a proxy for more complex systems. They play an important role in the energy and mass supply to the
Carsten Denker, Alexandra Tritschler
openaire   +1 more source

The Microbiology and Geochemistry of the Shallow‐Water Hydrothermal Vents of the Gulf of Naples, Italy

Environmental Microbiology, Volume 28, Issue 4, April 2026.
This study investigated the interplay between fluid geochemistry and microbial diversity in the shallow‐water hydrothermal vents of the gulf of Naples, Italy. We found that hydrothermal fluid chemistry and the geological settings where the vents are hosted play a key role in shaping microbial distribution.
Bernardo Barosa, Carmela Celentano, Flavia Migliaccio, Sara Claudia Diana, Ana Clara Pelliciari Silva, Matteo Selci, Luca Tonietti, Deborah Bastoni, Martina Cascone, Alessia Bastianoni, Monica Correggia, Luciano di Iorio, Roy Price, Stefano Caliro, Marco Milazzo, Alessandro Aiuppa, Costantino Vetriani, Angelina Cordone, Donato Giovannelli   +18 more
wiley   +1 more source

Sun-as-a-star Spectroscopic Observations of the Line-of-sight Velocity of a Solar Eruption on 2021 October 28

The Astrophysical Journal, 2022
The propagation direction and true velocity of a solar coronal mass ejection, which are among the most decisive factors for its geo-effectiveness, are difficult to determine through single-perspective imaging observations. Here we show that Sun-as-a-star
Yu Xu, Hui Tian, Zhenyong Hou, Zihao Yang, Yuhang Gao, Xianyong Bai   +5 more
doaj   +1 more source

The Cycles and Dynamical Properties of Convective Outbreaks in Jupiter's Highest Speed Jet From a 55‐Year Study

Geophysical Research Letters, Volume 53, Issue 3, 16 February 2026.
Abstract Jupiter's most intense jet at planetographic latitude 23.7°N experiences vigorous planetary‐scale disturbances. The onset consists of the outbreak of 1–3 bright clouds of convective origin developing turbulent plumes. Observed events between 1970 and 2025 shows a cycle of activity with a period in the range of 3.8–5.1 yrs interrupted between ...
Agustín Sánchez‐Lavega, José Félix Rojas, Jon Legarreta, Alberto Mendi‐Martos, Ricardo Hueso, Peio Iñurrigarro, Amy A. Simon, Michael H. Wong, Liming Li   +8 more
wiley   +1 more source

Experimental and Analytical Studies of Merging Plasma Loops on the Caltech Solar Loop Experiment [PDF]

, 2011
Of crucial importance for magnetized plasmas is magnetic helicity, a topological quantity that measures the knottedness or twistedness of the magnetic field. A universal relaxation theory, applicable to astrophysical and laboratory plasmas, dictates the
Perkins, Rory James
core   +1 more source

Segmentation and Tracking of Eruptive Solar Phenomena With Convolutional Neural Networks

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 1, February 2026.
Abstract Solar eruptive events are complex phenomena, which most often include coronal mass ejections (CME), CME‐driven compressive and shock waves, flares, and filament eruptions. CMEs are large eruptions of magnetized plasma from the Sun's outer atmosphere or corona, that propagate outward into the interplanetary space.
Oleg Stepanyuk, Kamen Kozarev
wiley   +1 more source

Early Hinode Observations of a Solar Filament Eruption [PDF]

, 2007
We use Hinode X-Ray Telescope (XRT) and Solar Optical Telescope (SOT) filtergraph (FG) Stokes-V magnetogram observations to study the early onset of a solar eruption that includes an erupting filament that we observe in TRACE EUV images; this is one of ...
Sterling, Alphonse C., Moore, Ronald L.
core   +1 more source