Peter Wintoft
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View article: Global landscape of space weather observations, research and operations
Global landscape of space weather observations, research and operations Open
The recognition of space weather hazards is increasingly growing, highlighting the importance of monitoring and forecasting it. High precision satellite positioning techniques have become essential in various areas of social and economic i…
View article: Predicting geo-effectiveness two days prior to CME impact with EUHFORIA
Predicting geo-effectiveness two days prior to CME impact with EUHFORIA Open
The EUropean Heliospheric FORecasting Information Asset (EUHFORIA, Pomoell and Poedts, 2018), a physics-based and data-driven heliospheric and CME propagation model can predict the solar wind plasma and magnetic field conditions at Earth. …
AI-ready Data in Solar Physics and Space Science: Concerns, Mitigation and Recommendations Open
Whitepaper #325 in the Decadal Survey for Solar and Space Physics (Heliophysics) 2024-2033. Main topics: space weather applications; basic research. Additional topics: ground-based missions/projects; space weather research/applications/ope…
AI-ready data in space science and solar physics: problems, mitigation and action plan Open
In the domain of space science, numerous ground-based and space-borne data of various phenomena have been accumulating rapidly, making analysis and scientific interpretation challenging. However, recent trends in the application of artific…
Editorial: Applications of statistical methods and machine learning in the space sciences Open
EDITORIAL article Front. Astron. Space Sci., 16 March 2023Sec. Astrostatistics Volume 10 - 2023 | https://doi.org/10.3389/fspas.2023.1163530
Calibration scheme for space-borne full-disk vector magnetograph under the influence of orbiter velocity Open
Context. The Full-disk Vector MagnetoGraph (FMG) is one of the three payloads on the Advanced Space-based Solar Observatory (ASO-S). The FMG is set to observe the full disk vector magnetic field at a single wavelength point. The magnetogra…
3D Modeling of Geomagnetically Induced Currents in Sweden—Validation and Extreme Event Analysis Open
Rosenqvist and Hall (2019), https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2018SW002084 developed a proof‐of‐concept modeling capability that incorporates a detailed 3D structure of Earth's electrical conductivity in a geomagnetic…
Exploring Three Recurrent Neural Network Architectures for Geomagnetic Predictions Open
Three different recurrent neural network (RNN) architectures are studied for the prediction of geomagnetic activity. The RNNs studied are the Elman, gated recurrent unit (GRU), and long short-term memory (LSTM). The RNNs take solar wind da…
Evaluation of<i>Kp</i>and<i>Dst</i>Predictions Using ACE and DSCOVR Solar Wind Data Open
Models that predict the Kp and Dst indices are evaluated using solar wind data at L1. The models consist of ensembles of neural networks that have been developed using ACE Level 2 data from the period 1998–2015. The use of ensembles is mot…
Model Evaluation Guidelines for Geomagnetic Index Predictions Open
Geomagnetic indices are convenient quantities that distill the complicated physics of some region or aspect of near‐Earth space into a single parameter. Most of the best‐known indices are calculated from ground‐based magnetometer data sets…
O<sup>+</sup>Escape During the Extreme Space Weather Event of 4–10 September 2017 Open
We have investigated the consequences of extreme space weather on ion outflow from the polar ionosphere by analyzing the solar storm that occurred early September 2017, causing a severe geomagnetic storm. Several X‐flares and coronal mass …
PROGRESS: Fusion of forecasts from the Sun to the Earth Open
International audience
Forecasting <i>Kp</i> from solar wind data: input parameter study using 3-hour averages and 3-hour range values Open
We have developed neural network models that predict Kp from upstream solar wind data. We study the importance of various input parameters, starting with the magnetic component Bz, particle density n, and velocity V and then adding total f…
Extreme value analysis of the time derivative of the horizontal magnetic field and computed electric field Open
High-frequency ( ≈ minutes) variability of ground magnetic fields is caused by ionospheric and magnetospheric processes driven by the changing solar wind. The varying magnetic fields induce electrical fields that cause currents to flow in …