Results 91 to 100 of about 13,257 (238)

New Phoenix Magnetic Anomaly Data Confirms Global Nature of Jurassic Quiet Zone and Provides Insight Into Early Pacific Spreading

Geophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract We demonstrate the presence of the oldest identifiable marine magnetic anomalies in the Phoenix lineations of the western Pacific based on careful assessment of new data. Recently acquired sea surface magnetic anomalies and multichannel seismic profiles confirm magnetic signals recorded within the Middle‐Jurassic to Early Cretaceous basement ...
Masako Tominaga, Maurice A. Tivey, Hannah F. Mark, William W. Sager, Jonas Preine   +4 more
wiley   +1 more source

A Study of the Aurora of 1859 [PDF]

, 1960
The two great auroral displays of August 28-29 and September 1-2, 1859 are studied from a collection of world-wide descriptive observations. Both auroras reached to unusually low latitudes.
Kimball, D. S.
core  

Global Impacts of Ultra‐Low‐Frequency Waves: 1. Thermospheric Responses and Traveling Atmospheric Disturbances

Geophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract Ultra‐low‐frequency (ULF) waves cause local Thermosphere‐Ionosphere (T‐I) perturbations, but their impacts on the global T‐I system including the generation of Traveling Atmospheric Disturbances (TADs) have never been evaluated. The mechanisms responsible for the TAD generation and propagation, whether through dynamic or thermal process, are ...
Haonan Wu, Wenbin Wang, Xueling Shi, Dong Lin, Michael D. Hartinger, Joseph B. H. Baker, Shibaji Chakraborty   +6 more
wiley   +1 more source

Azimuth estimation based on CNN and LSTM for geomagnetic and inertial sensors data

ICT Express
Although estimating the azimuth using a geomagnetic sensor is very useful, the estimation error may be very large due to the surrounding geomagnetic disturbance.
Jongtaek Oh, Sunghoon Kim
doaj   +1 more source

Coronal shocks associated with CMEs and flares and their space weather consequences

, 2010
We study the geoeffectiveness of a sample of complex events; each includes a coronal type II burst, accompanied by a GOES SXR flare and LASCO CME. The radio bursts were recorded by the ARTEMIS-IV radio spectrograph, in the 100-650 MHz range; the GOES SXR
A. Hillaris, Caroubalos, Constantine Caroubalos, Eleftheria Mitsakou, George Pothitakis, Marina Laskari, Panagiota Preka-Papadema, Xenophon Moussas   +7 more
core   +1 more source

Thermospheric temperatures during geomagnetically disturbed periods.

Journal of geomagnetism and geoelectricity, 1986
Nighttime thermospheric temperatures were derived from Doppler line profiles of the [OI] 630nm emission that were observed by using a 15-cm high-resolution Fabry-Perot interferometer at a field station near Albany (42.68°N, 73.82°W), New York.The temperatures, obtained during magnetically quiet periods in May, June and July, 1978 when Kp≤2, are ...
S. OKANO, J. S. KIM
openaire   +2 more sources

Impact of Solar Irradiance on Storm‐Time Thermospheric Mass Density Response

Geophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract As a key parameter in the externally forced ionosphere–thermosphere (IT) system, mass density response to storms is affected by the prevailing solar irradiance. To better understand this relationship, we examine mass density responses to the same storm but with different background solar irradiance levels.
Simin Zhang, Liying Qian, Nicholas Pedatella, Eric Sutton, Noah Peterson, Thomas Berger   +5 more
wiley   +1 more source

The Time Delays in Reaction of the Ionosphere and the Earth’s Magnetic Field to the Solar Flares on 8 May and Geomagnetic Superstorm on 10 May 2024

Atmosphere
In the paper we consider the pulsed disturbances caused in the ionosphere by an extreme G5-level geomagnetic superstorm on 10 May 2024, and by the X1.0 and M-class solar flares on 8 May 2024, which preceded the storm.
Nazyf Salikhov, Alexander Shepetov, Galina Pak, Serik Nurakynov, Vladimir Ryabov, Zhumabek Zhantayev, Valery Zhukov   +6 more
doaj   +1 more source

Magnetic Flux of EUV Arcade and Dimming Regions as a Relevant Parameter for Early Diagnostics of Solar Eruptions - Sources of Non-Recurrent Geomagnetic Storms and Forbush Decreases

, 2012
This study aims at the early diagnostics of geoeffectiveness of coronal mass ejections (CMEs) from quantitative parameters of the accompanying EUV dimming and arcade events.
A. A. Abunin, A. Belov, A. Taktakishvili, A. V. Belov, A.C. Sterling, A.C. Sterling, A.N. Zhukov, A.N. Zhukov, A.V. Belov, B. Schmieder, B. Vršnak, B. Vršnak, B.E. Wood, B.J. Thompson, B.J. Thompson, B.V. Jackson, B.V. Jackson, C.H. Mandrini, C.H. Mandrini, C.H. Miklenic, D. Tripathi, D.F. Webb, D.F. Webb, E.W. Cliver, G. Michalek, G. Siscoe, G. Siscoe, G.E. Brueckner, G.F. Krymskii, H. Song, H. Xie, H.S. Hudson, H.V. Cane, I. M. Chertok, I.G. Richardson, I.G. Richardson, I.G. Richardson, I.M. Chertok, I.M. Chertok, I.M. Chertok, I.M. Chertok, J. Qiu, J. Zhang, J. Zhang, J.-P. Delaboudinière, J.R. Lemen, J.T. Gosling, K. Marubashi, K.-H. Kim, L.K. Harra, M.L. Kaiser, N. Gopalswamy, N. Gopalswamy, N. Gopalswamy, N. Gopalswamy, N. Gopalswamy, N. Lugaz, P. Dèmoulin, P.H. Scherrer, P.K. Manoharan, R.-S. Kim, S. Kahler, S. Yashiro, S.-M. Kang, S.E. Gibson, V. Bothmer, V. V. Grechnev, V. Yurchyshyn, V. Yurchyshyn, V. Yurchyshyn, Y. Liu, Y. Liu, Y. Liu, Y. Zhang, Y.M. Wang, Z. Švestka, Z.K. Smith   +76 more
core   +1 more source

Mesospheric and Lower Thermospheric Responses to the May 2024 Geomagnetic Storm in the Antarctic Peninsula

Geophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract We analyze the response of mean winds and semidiurnal tides (SDTs) in the mesosphere and lower thermosphere (MLT; ∼70–110 km altitude) to the May 2024 geomagnetic super storm, based on meteor radar (MR) observations from King Sejong Station (KSS; geographic: 62.22°S, 58.78°W; geomagnetic: 53.27°S, 10.88°E) in the Antarctic Peninsula.
Byeong‐Gwon Song, In‐Sun Song, Masaru Kogure, Geonhwa Jee, Jeong‐Han Kim, Changsup Lee, Eunsol Kim, Young‐Bae Ham, Hosik Kam   +8 more
wiley   +1 more source