Results 61 to 70 of about 4,544 (177)

Temporal variations of the ionospheric disturbances due to the seasonal variability over Turkey using IONOLAB-FFT algorithm

Geodesy and Geodynamics, 2020
The ionosphere is exposed to forcing from below due to gravitational, geomagnetic and seismic activities, and above due to solar wind. These forces cause some medium and large scale irregularities and disturbances into the upper atmosphere and ionosphere.
Secil Karatay
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Quasi 6‐Day Wave Variability in the Thermosphere and Ionosphere: Observations and Modeling

Earth and Space Science, Volume 13, Issue 9, September 2026.
Abstract Satellite observations of the upper mesosphere and lower thermosphere from TIMED‐SABER and ICON‐MIGHTI reveal a clear Quasi 6‐Day Wave (Q6DW) event in the winds and temperatures in this region. This Q6DW event persists across multiple data sets throughout the middle‐to‐upper thermosphere and the F‐region ionosphere, including GOLD disk ...
Oluwafisayo P. Owolabi, Scott L. England, Yen‐Jung Wu   +2 more
wiley   +1 more source

Statistical Scale Analyses of a Diurnal Periodicity in Auroral Kilometric Radiation, Observed by Wind/WAVES

Journal of Geophysical Research: Space Physics, Volume 131, Issue 9, September 2026.
Abstract The Earth's strongest natural radio emission is Auroral Kilometric Radiation (AKR), which is correlated with auroral intensity, and is a barometer for space weather. AKR is generated by the electron cyclotron maser instability, with sources on auroral field lines. Previous work on AKR and radio emissions from other planets (or stars) points to
Alexandra Ruth Fogg, S. Wu, C. M. Jackman, S. J. Walker, M. J. Rutala, C. K. Louis, S. M. Ivanov, L. Lamy, J. E. Waters, D. K. Whiter   +9 more
wiley   +1 more source

Spectral Observation of Solar Photosynthetically Active Radiation on Clear Days in Qinghai-Xizang Plateau

Gaoyuan qixiang
Photosynthetically Active Radiation （PAR） spectrum， in visible light， is the wavelength range sensitive to plants and can be absorbed by them for photosynthesis.The characteristics of ground PAR spectrum directly affect the growth， development ...
Min SHENG, Tsoja WANGMO, Mengmeng WANG, Yi ZHOU, Dopwang PU, Tunzhup LAGBA, Gelsor NORSANG   +6 more
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Precession‐Related Variability in North Pacific Deep Water Formation in the Early Eocene: Insights From cGENIE Simulations

Paleoceanography and Paleoclimatology, Volume 41, Issue 9, September 2026.
Abstract Past warmhouse climates differed from the modern ocean circulation regime, with deep‐water formation occurring in regions that are inactive today. Evidence suggests that the North Pacific may have been one such region. The early Eocene, characterized by elevated greenhouse gas concentrations and orbitally paced carbon cycle perturbations ...
Q. Jiang, M. Li, N. M. Papadomanolaki, Y. Liu, D. De Vleeschouwer   +4 more
wiley   +1 more source

Highly Mobile Seabirds Reveal Areas of Conservation Importance Across the Atlantic Ocean

Conservation Letters, Volume 19, Issue 5, September/October 2026.
ABSTRACT Countries have committed to expanding the marine protected area (MPA) network to 30% of the world's ocean by 2030, more than tripling current coverage, and focusing on areas important for biodiversity. For such expansion to translate into effective conservation of marine biodiversity, it must rely on the best available knowledge.
Marie‐Morgane Rouyer, Ana S. L. Rodrigues, Tammy E. Davies, Bethany L. Clark, Elizabeth J. Pearmain, Nina Bhola, Ana P. B. Carneiro, Jacob González‐Solís, João L. Guilherme, Aida Abdennadher, Isabel Afán, Jose A. Alves, Tycho Anker‐Nilssen, José Manuel Arcos, Kelly M. Atkins, Marie Auger‐Méthé, Mark Baran, Nadito Jesus Pina Barbosa, Alastair Baylis, Stuart Bearhop, Ashley Bennison, Alice Bernard, Philip Bertrand, Manuel Biscoito, Thomas W. Bodey, Maria I. Bogdanova, Loïc Bollache, Anne‐Sophie Bonnet‐Lebrun, Thierry Boulinier, Vegard Sandøy Bråthen, Joël Bried, Leandro Bugoni, Letizia Campioni, Paulo Catry, Jacopo G. Cecere, Filipe Rafael Ceia, Olivier Chastel, Signe Christensen‐Dalsgaard, Marco Cianchetti‐Benedetti, Thomas A. Clay, Ian Robert Cleasby, Sydney Morgan Collins, Nicolas Courbin, Jóhannis Danielsen, Francis Daunt, Herculano De Andrade Dinis, Federico De Pascalis, Nina Dehnhard, Giacomo Dell'Omo, Sébastien Descamps, Antony W. Diamond, Ben J. Dilley, Ewan William James Edwards, Carsten Egevang, Kyle H. Elliott, Kjell Einar Erikstad, Alexey Ezhov, Ana Isabel Fagundes, Annette L. Fayet, David A. Fifield, Ruben Fijn, Manuela G. Forero, Jérôme Fort, Morten Frederiksen, Robert W. Furness, Giorgia Gaibani, Stefan Garthe, Maria Gavrilo, H. Grant Gilchrist, Olivier Gilg, Carina Gjerdrum, José P. Granadeiro, W. James Grecian, Jonathan A. Green, David Grémillet, Tim Guilford, Keith C. Hamer, Erpur Snær Hansen, Sveinn Are Hanssen, Stephanie M. Harris, Autumn‐Lynn Harrison, April Hedd, Marcos Hernández‐Montero, Nicholas P. Huffeldt, Simona Imperio, Dariusz Jakubas, Ruth Jeavons, Mark Jessopp, Patrick G. R. Jodice, Kasper Lambert Johansen, Georgios Karris, Yann Kolbeinsson, Stephen W. Kress, Lucas Krüger, Ulrike Kubetzki, Jude V. Lane, Johannes Lang, Jannie Fries Linnebjerg, Svein‐Håkon Lorentsen, Donald E. Lyons, Mark Maftei, Maria Magalhães, Heather L. Major, Mark Mallory, Elizabeth A. Masden, Juan F. Masello, Laura McFarlane Tranquilla, Flemming Ravn Merkel, Teresa Militão, Børge Moe, Anders Mosbech, Joan Navarro, Leia Navarro‐Herrero, Verónica Costa Neves, Mark A. Newell, Stephen Francis Newton, Bergur Olsen, Steffen Oppel, Daniel Oro, Oliver Padget, Vítor Hugo Paiva, Allison Patterson, Jorge Miguel Pereira, Aevar Petersen, Maria Virginia Petry, Richard A. Phillips, Admilton Pina, Ingrid L. Pollet, Christopher John Pollock, Aurore Ponchon, Ben James Porter, Petra Quillfeldt, John L. Quinn, Flavio Quintana, Jean‐François Rail, André Francis Raine, Iván Ramírez, Raül Ramos, Jaime A. Ramos, Chris P. F. Redfern, Tone Kristin Reiertsen, Gregory J. Robertson, Robert A. Ronconi, Diego Rubolini, Sarah Saldanha, Ángel Sallent, Mariona Sardà‐Serra, Niels Martin Schmidt, Andy Schofield, Judy Shamoun‐Baranes, Dave Shutler, Ingvar Atli Sigurðsson, Mónica C. Silva, Iain J. Stenhouse, Hallvard Strøm, Mike Swindells, Stephanie C. Symons, Geir Helge Rødli Systad, Chris B. Thaxter, Paul M. Thompson, Thorkell Lindberg Thórarinsson, Alice M. Trevail, Rob S. A. van Bemmelen, Diego Vicente‐Sastre, Stephen Votier, Ewan D. Wakefield, Sarah Wanless, Ross M Wanless, Saskia Wischnewski, Katarzyna Wojczulanis‐Jakubas, Joanna B. Wong, Lucy Joanna Wright, José C. Xavier, Stavros M. Xirouchakis, Marco Zenatello, Francis Zino, Maria P. Dias   +176 more
wiley   +1 more source

ENLIGHTENme: Translating the Benefits of Self‐Administered Daytime Light Supplementation to Older Adults in the Real World

Journal of Pineal Research, Volume 78, Issue 5, September 2026.
ABSTRACT Controlled studies have demonstrated that light supplementation benefits circadian entrainment, sleep and mood. Translating these findings into effective, real‐world usage of light supplementation is, however, challenging because naturalistic and supplemental light exposure are shaped by personal habits and environmental light conditions ...
Débora B. Constantino, Flavia Baccari, Leonardo Caporali, Valerio Carelli, Giulia Amore, Marijke Gordijn, Toomas Haller, Chiara La Morgia, Anne Landvreugd, Marina Marinelli, David McDaid, Monika Nõmm, Francesco Nonino, Martina Romagnoli, Martino Schettino, Corrado Zenesini, Meike Bartels, Debra J. Skene, Daan R. van der Veen   +18 more
wiley   +1 more source

Ülo Valk and Marion Bowman (eds): Vernacular Knowledge: Contesting Authority, Expressing Beliefs

Temenos, 2023
Book review of Ülo Valk and Marion Bowman (eds): Vernacular Knowledge: Contesting Authority, Expressing Beliefs. Sheffield: Equinox Publishing, 2022, 423 pp. 
Karolina Kouvola
doaj  

Where is the Equinox ? [PDF]

Symposium - International Astronomical Union, 1979
Within the work being carried out at Heidelberg on the establishment of the new fundamental reference coordinate system, the FK5, the determination of the location of celestial equator and the equinox form an important part. The plane of the celestial equator defined by the axis of rotation of the Earth and the plane of the ecliptic defined by the ...
openaire   +1 more source

Давньоіранське зображення хронотопу в передачі вторинного джерела

Простір в історичних дослідженнях
У статті йдеться про цікавий аспект давнього розуміння простору, згідно з яким уявлення про Світ, космос співпадає з уявленням про час – календарний рік.
Юрій Писаренко
doaj