Results 91 to 100 of about 619,372 (203)

Geomagnetic Hpo index (V3.0)

, 1932
This data publication includes the half-hourly Hp30 and ap30 indices as well as the hourly Hp60 and ap60 indices, collectively denoted as Hpo. This dataset is based on near real-time geomagnetic observatory data provided by 13 contributing observatories.
Bronkalla, Oliver, Rauberg, Jan, Matzka, Jürgen, Yamazaki, Yosuke, da Silva, Marcos Vinicius, Kervalishvili, Guram, Korte, Monika   +6 more
core   +1 more source

Understanding space weather phenomena responsible for different impacts on spacecraft during the May 2024 extreme geomagnetic storm

Earth, Planets and Space
Extreme geomagnetic storms pose significant risks to spacecraft operations through enhanced particle radiation, geomagnetic disturbances, and thermospheric density variations.
Tsutomu Nagatsuma, Kaori Sakaguchi, Yûki Kubo   +2 more
doaj   +1 more source

Global Response of Vertical Total Electron Content to Mother’s Day G5 Geomagnetic Storm of May 2024: Insights from IGS and GIM Observations

Atmosphere
The G5 geomagnetic storm of May 2024 provided a significant opportunity to investigate global ionospheric disturbances using vertical total electron content (VTEC) data derived from 422 GNSS-IGS stations and GIM.
Sanjoy Kumar Pal, Soumen Sarkar, Kousik Nanda, Aritra Sanyal, Bhuvnesh Brawar, Abhirup Datta, Stelios M. Potirakis, Ajeet K. Maurya, Arnab Bhattacharya, Pradipta Panchadhyayee, Saibal Ray, Sudipta Sasmal   +11 more
doaj   +1 more source

Iono‐PhyTAU: A Lightweight Global Ionospheric TEC Prediction Model Based on Temporal Attention Unit and Physical Condition Constraints of the Ionosphere

Space Weather, Volume 24, Issue 9, September 2026.
Abstract Ionospheric Total Electron Content (TEC) is the primary error source causing signal delay in Global Navigation Satellite Systems (GNSS). High‐precision TEC prediction is essential for positioning, navigation, and space weather monitoring. Although deep learning models including ConvLSTM, ConvGRU, and Transformer have advanced TEC forecasting ...
Yiling Gui, Yajun Xu, Song Jia, Miaomiao Wang, Boyang Hao, Xinjie Wu   +5 more
wiley   +1 more source

Statistical Approach to Research on the Relationship Between Kp/Dst Geomagnetic Indices and Total GPS Position Error

Remote Sensing
This study examines the impact of geomagnetic disturbances quantified by the Kp and Dst indices on the accuracy of single-frequency GPS positioning across mid-latitudes and the equatorial zone, with a focus on temporal and spatial positioning errors ...
Mario Bakota, Igor Jelaska, Serdjo Kos, David Brčić   +3 more
doaj   +1 more source

Long‐Lived Equatorial Plasma Bubbles Persisting Into the Afternoon Over the Pacific Sector During the Recovery Phase of the April 2023 Geomagnetic Storm

Space Weather, Volume 24, Issue 9, September 2026.
Abstract Equatorial plasma bubbles (EPBs) are typically nighttime ionospheric irregularities, and their persistence into daytime sectors remains insufficiently understood. Here, we investigate long‐lived EPB‐related plasma depletion structures over the Pacific sector during the recovery phase of the 23–25 April 2023 geomagnetic storm using Formosa ...
Hailun Ye, Wen Yi, Jianfei Wu, Bingkun Yu, Penghao Tian, Xianghui Xue, Yajun Zhu, Jianyuan Wang, Jianyong Lu, Jian Li, Chong Wang, Tingdi Chen, Xiankang Dou   +12 more
wiley   +1 more source

Controls on Solar Wind Entry Identified Through Wind–ACE Heavy‐Ion Diagnostics

Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract Solar wind (SW) entry into the magnetosphere occurs through several mechanisms, but their dependence on the properties of different ion species is unknown. We compare measurements from Wind‐STICS (magnetosphere) with ACE‐SWICS (L1) to test for any preferential entry between He2+ and SW heavy ions.
S. Colón‐Rodríguez, M. W. Liemohn, J. M. Raines, S. T. Lepri   +3 more
wiley   +1 more source

Real-time geomagnetic indices monitoring system for the Fúquene observatory

El presente trabajo desarrolla un sistema integral para la adquisición, procesamiento, validación y visualización de índices geomagnéticos, denominado SIAPV, a partir de los datos del Observatorio Geomagnético de Fúquene (FUQ), con el propósito de ...
Salas Hernández, Simón, Pinilla Capador, Santiago Alejandro   +1 more
core   +1 more source

The behavior of solar wind parameters and geomagnetic activity indices for geomagnetically induced current observations

, 2018
The main objective of the current work is to  investigate the behavior of space weather parameter as well as geomagnetic activity indices to observe the Geomagnetically Induced Current (GIC).
Abdullah Din, A.N.F., Mohd Anuar, N, Umar, R, Jusoh, M.H., Mohd Kasran, F.A., Enche Ab Rahim, S.A.   +5 more
core   +1 more source

Forecast of Ionospheric TEC Maps Using ConvGRU Deep Learning Over China

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
In this article, we propose a convolutional gated recurrent unit (ConvGRU) deep learning method to forecast ionospheric total electron content (TEC) over China based on the regional ionospheric maps (RIMs) from 2015 to 2018.
Jun Tang, Zhengyu Zhong, Mingfei Ding, Dengpan Yang, Heng Liu   +4 more
doaj   +1 more source