Results 31 to 40 of about 1,306 (183)

The Staircase Chart: Visualising Vertical and Cross‐Shelf Movements and Dispersal of Early‐Life Fish, Applied to Japanese Jack Mackerel

Fisheries Oceanography, Volume 35, Issue 5, Page 689-703, September 2026.
ABSTRACT Dispersal during early life stages is a critical process shaping marine fish connectivity and population dynamics, yet direct field observations at the individual level remain elusive. This has limited our understanding of the factors controlling dispersal, including the impact of active swimming by larvae and juveniles. Here, we present a new
Tatsuya Sakamoto, Daichi Muto, Motomitsu Takahashi, Chiyuki Sassa, Toyoho Ishimura   +4 more
wiley   +1 more source

MMS Observations of Multi‐Species Wave‐Particle Interactions and Rapid Foreshock Evolution

Journal of Geophysical Research: Space Physics, Volume 131, Issue 8, August 2026.
Abstract The ion foreshock is the region upstream of Earth's bow shock where magnetic field lines connect to the quasi‐parallel shock surface. Within this region, there exist a variety of backstreaming ion populations from the shock ramp that can generate ultra‐low frequency (ULF) waves through wave‐particle interactions. In this work, we use data from
Guan Le, Xochitl Blanco‐Cano, Yuxi Chen, Megha Pandya, Gangkai Poh, Hanying Wei, Scott Boardsen, Poshan Belbase, Christopher T. Russell, Daniel J. Gershman, Ian J. Cohen, S. A. Fuselier   +11 more
wiley   +1 more source

A New Method Linking the Solar Wind Speed to the Coronal Magnetic Field

The Astrophysical Journal, 2023
The release and acceleration of the solar wind is still an outstanding question. There are several aspects related to this phenomenon that still need to be investigated, and one of these is the identification of the region within the inner corona where ...
Marta Casti, Charles N. Arge, Alessandro Bemporad, Rui F. Pinto, Carl J. Henney   +4 more
doaj   +1 more source

THE CORONAL SOURCE OF EXTREME-ULTRAVIOLET LINE PROFILE ASYMMETRIES IN SOLAR ACTIVE REGION OUTFLOWS [PDF]

The Astrophysical Journal, 2012
High resolution spectra from the Hinode EUV Imaging Spectrometer (EIS) have revealed that coronal spectral line profiles are sometimes asymmetric, with a faint enhancement in the blue wing on the order of 100 km/s. These asymmetries could be important since they may be subtle, yet diagnostically useful signatures of coronal heating or solar wind ...
Brooks, David H., Warren, Harry P.
openaire   +2 more sources

Neutral Wind Dynamics in High‐Latitude Regions During the 17 March 2013 Storm

Journal of Geophysical Research: Space Physics, Volume 131, Issue 8, August 2026.
Abstract Neutral winds play a critical role in transporting mass, momentum, and energy throughout the upper atmosphere. During geomagnetic storms, momentum is transferred to the thermosphere primarily through ion–neutral collisions, along with other forces. This study investigates high‐latitude neutral wind dynamics during the 17 March 2013 storm using
A. Alhothali, A. J. Ridley, M. Akhavan‐Tafti   +2 more
wiley   +1 more source

Spectroscopic Study of Heating Distributions and Mechanisms Using Hinode/EIS

The Astrophysical Journal
Heating distributions along coronal loops are obtained from spectroscopic data with the Hinode/EUV Imaging Spectrometer. The loop half-lengths L _half are in the range of 24–107 Mm for our analysis of 18 loops.
Shun Ishigami, Hirohisa Hara, Takayoshi Oba   +2 more
doaj   +1 more source

The Airborne Infrared Spectrometer: Development, Characterization, and the 2017 August 21 Eclipse Observation

The Astronomical Journal, 2022
On 2017 August 21, the Airborne Infrared Spectrometer (AIR-Spec) observed the total solar eclipse at an altitude of 14 km from aboard the NSF/NCAR Gulfstream V research aircraft.
Jenna E. Samra, Vanessa Marquez, Peter Cheimets, Edward E. DeLuca, Leon Golub, James W. Hannigan, Chad A. Madsen, Advik Vira, Arn Adams   +8 more
doaj   +1 more source

Longitudinal Variation of Ionospheric Irregularities and Response of the Ionosphere During 10–13 May and 10–13 October 2024 Geomagnetic Storms

Journal of Geophysical Research: Space Physics, Volume 131, Issue 8, August 2026.
Abstract We examine the response of the ionosphere to the 10–13 May 2024 and 10–13 October 2024 geomagnetic storms, the two recent great geomagnetic storms of solar cycle 25. We identified the occurrence of ionospheric irregularities during the two geomagnetic storms.
Valence Habyarimana, Mark B. Moldwin, John Bosco Habarulema, Sharon Aol, Jean Claude Uwamahoro, Teshome Dugassa, Daniel Okoh, Solomon Otoo Lomotey   +7 more
wiley   +1 more source

Space–time distributions of the coronal green-line brightness and solar magnetic fields [PDF]

Astronomical & Astrophysical Transactions, 2004
The space-time distribution of brightness of the Fe XIV, 530.3 nm coronal green line and its cyclic variations are analysed for a long time interval of more than five cycles (1943–2001). For this purpose a special movie has been made. It is shown that a substantial spatial reorganization of the coronal green-line brightness (CGLB) takes a relatively ...
O. G. Badalyan, V. N. Obridko, J. Sýkora   +2 more
openaire   +2 more sources

Total Solar Eclipse White-light Images as a Benchmark for Potential Field Source Surface Coronal Magnetic Field Models: An In-depth Analysis over a Solar Cycle

The Astrophysical Journal
Potential field source surface (PFSS) models are widely used to simulate coronal magnetic fields. PFSS models use the observed photospheric magnetic field as the inner boundary condition and assume a perfectly radial field beyond a “source surface” ( R ...
Luke Fushimi Benavitz, Benjamin Boe, Shadia Rifai Habbal   +2 more
doaj   +1 more source