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Harnessing AI to improve space weather forecasting with NSF's GONG Data
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Harnessing AI to improve space weather forecasting with NSF's GONG Data
by Clarence Oxford
Los Angeles CA (SPX) Oct 22, 2024

Solar filaments, the dramatic thread-like structures visible in the Sun's chromosphere, may hold crucial insights into one of the most significant space weather phenomena: Coronal Mass Ejections (CMEs). These immense bursts of plasma and magnetic fields from the Sun can eject billions of tons of material into space. When CMEs reach Earth's magnetosphere, they have the potential to trigger geomagnetic storms, which can disrupt satellites, power grids, and communication systems. The magnetic field orientation in these CMEs, often tied to the filaments that generate them, plays a key role in determining their impact on Earth.

However, the timely identification of solar filaments and their magnetic properties, such as chirality (handedness), has been challenging. Early detection of these filaments could vastly improve space weather forecasting, providing critical warnings for geomagnetic storm intensity and timing.

This is where AI and Machine Learning (AI/ML) techniques come into play, offering a way to revolutionize solar filament detection. The key to success, however, lies in high-quality training data, which is now available thanks to recent efforts.

Introducing MAGFiLO v1.0: A Game-Changing Dataset
The Manually Annotated GONG Filaments in H-alpha Observations (MAGFiLO v1.0) dataset is a significant development. Spearheaded by Azim Ahmadzadeh of the University of Missouri-St. Louis, alongside NSO scientists Alexei Pevtsov, Luca Bertello, and NSO engineer Alexander Pevtsov, MAGFiLO v1.0 includes detailed annotations for 10,244 solar filaments from 1,593 solar observations. The data, gathered between 2011 and 2022 by the National Science Foundation's (NSF) Global Oscillation Network Group (GONG), spans an entire solar cycle and captures varying phases of solar activity.

GONG, operated by the NSF's National Solar Observatory (NSO) with support from the National Oceanic and Atmospheric Administration (NOAA), provides extensive coverage through its global network of facilities. This dataset, with its large scale and detailed annotations, offers vital information about solar filaments, including their magnetic chirality.

What sets MAGFiLO apart is the precision of its annotations, achieved through over 1,000 hours of expert manual work and a rigorous double-blind review process to ensure accuracy. Each filament is tagged with essential magnetic field details, making the dataset a powerful resource for AI model training.

Uniting Solar Physics and AI
The creation of MAGFiLO marks a convergence of solar physics and AI advancements. Once trained on this dataset, machine learning models will be able to automatically identify and analyze solar filaments in real time, using data from GONG.

MAGFiLO also reinforces known solar physics observations, such as the hemispheric preference of filament chirality-northern hemisphere filaments tend to exhibit one magnetic orientation, while southern hemisphere filaments display the opposite. With nearly three decades of data, GONG continues to be a cornerstone of research requiring long-term solar observations.

AI's Role in Future Space Weather Forecasting
The integration of AI/ML into solar filament analysis represents a transformative moment for space weather forecasting. The creation of datasets like MAGFiLO is just the beginning. The next step involves training machine learning algorithms to automatically detect and classify solar filaments. Once trained, these models can process live GONG data, enabling real-time filament identification and analysis.

The potential benefits for space weather forecasting are substantial. With more precise data available sooner, researchers will be able to issue more accurate geomagnetic storm warnings, helping to protect critical infrastructure from the effects of solar storms. The collaboration between solar physicists and AI engineers is paving the way for more effective and timely space weather predictions.

Research Report:A dataset of manually annotated filaments from H-alpha observations

Related Links
National Solar Observatory
Solar Science News at SpaceDaily

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