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CNN-Based Deep Learning Model for Solar Wind Forecasting
Solar Physics ( IF 2.7 ) Pub Date : 2021-09-06 , DOI: 10.1007/s11207-021-01874-6
Hemapriya Raju 1 , Saurabh Das 1
Affiliation  

This article implements a Convolutional Neural Network (CNN)-based deep-learning model for solar-wind prediction. Images from the Atmospheric Imaging Assembly (AIA) at 193 Å wavelength are used for training. Solar-wind speed is taken from the Advanced Composition Explorer (ACE) located at the Lagrangian L1 point. The proposed CNN architecture is designed from scratch for training with four years’ data. The solar-wind has been ballistically traced back to the Sun assuming a constant speed during propagation, to obtain the corresponding coronal-intensity data from AIA images. This forecasting scheme can predict the solar-wind speed well with a RMSE of 76.3 ± 1.87 km s−1 and an overall correlation coefficient of 0.57 ± 0.02 for the year 2018, while significantly outperforming benchmark models. The threat score for the model is around 0.46 in identifying the HSEs with zero false alarms.



中文翻译:

用于太阳风预测的基于 CNN 的深度学习模型

本文实现了一个基于卷积神经网络 (CNN) 的深度学习模型,用于太阳风预测。来自大气成像组件(AIA) 的 193 Å 波长图像用于训练。太阳风速取自位于拉格朗日 L 1点的高级成分浏览器(ACE) 。所提出的 CNN 架构是从头开始设计的,用于训练四年的数据。假设在传播过程中保持恒定速度,太阳风已被弹道追溯到太阳,以从 AIA 图像中获得相应的日冕强度数据。该预测方案可以很好地预测太阳风速,RMSE 为 76.3 ± 1.87 km s -12018 年的整体相关系数为 0.57±0.02,同时显着优于基准模型。在识别具有零误报的 HSE 时,该模型的威胁评分约为 0.46。

更新日期:2021-09-07
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