跨模态太阳图像合成：将 Surya 基础模型从 He I 10830 Å 适配到 EUV 转换和日冕洞分割
Cross-Modal Solar Image Synthesis: Adapting the Surya Foundation Model from He I 10830 Å to EUV Translation and Coronal Hole Segmentation
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中文总结 AI 辅助
本研究将 Surya 基础模型适配为从 He I 10830 Å 观测预测 SDO/AIA EUV 图像和日冕洞分割，通过卷积适配器和残差精化器实现高相关性，验证了氦条件 EUV 形态代理用于历史重建的可行性。
中文摘要 AI 辅助
He I 10830 Å 的长期观测记录为研究现代极紫外（EUV）成像之前的太阳形态提供了一种手段。我们将 Surya 太阳基础模型适配为从全日面氦观测预测太阳动力学观测站/大气成像组件（SDO/AIA）94、193 和 304 Å 图像以及日冕洞（CH）概率图。卷积输入适配器、低秩骨干更新和专用输出解码器从时间配对、几何配准的观测中学习，其中空间可能性聚类算法（SPOCA）目录多边形提供 CH 监督。在从下游微调中保留的观测上，所选专用模型分别对三个 AIA 通道实现了盘限制相关系数（CC）0.8196、0.8885 和 0.8398；CH 模型实现了交并比（IoU）0.4360。预测恢复了广泛的太阳结构，尽管局部一致性因通道而异。一个可选的残差精化器处理空间细节，其在 SDO 之前的日期上的应用将合成 AIA 304 与太阳和日球层观测站/极紫外成像望远镜（SOHO/EIT）304 参考的相关性从 0.6511 提高到 0.7085。这些结果共同支持了氦条件 EUV 形态代理的可行性，并激励其在历史重建中的应用，在下游测试和跨仪器评估的范围内。
英文摘要
The long observational record of He I 10830 Å offers a means to investigate solar morphology before modern extreme-ultraviolet (EUV) imaging. We adapt the Surya solar foundation model to predict Solar Dynamics Observatory/Atmospheric Imaging Assembly (SDO/AIA) 94, 193, and 304 Å images and a coronal hole (CH) probability map from full-disk helium observations. A convolutional input adapter, low-rank backbone updates, and dedicated output decoders learn from temporally paired, geometrically registered observations, with Spatial Possibilistic Clustering Algorithm (SPOCA) catalog polygons providing CH supervision. On observations held out from downstream fine-tuning, the selected dedicated models achieve disk-restricted correlation coefficients (CCs) of 0.8196, 0.8885, and 0.8398 for the three AIA channels, respectively; the CH model achieves an intersection over union (IoU) of 0.4360. The predictions recover broad solar structure, although local agreement varies substantially by channel. An optional residual refiner addresses spatial detail, and its application on pre-SDO dates improves the correlation of synthetic AIA 304 with Solar and Heliospheric Observatory/Extreme-ultraviolet Imaging Telescope (SOHO/EIT) 304 references from 0.6511 to 0.7085. Together, these results support the feasibility of helium-conditioned EUV morphological proxies and motivate their use in historical reconstruction, within the scope of the downstream test and cross-instrument evaluation.
发表机构
- New Jersey Institute of Technology（新泽西理工学院）
- SouthWest Research Institute（西南研究院）
- Sam Houston State University（萨姆休斯顿州立大学）
- University of Iowa（爱荷华大学）
机构由 AI 辅助整理，请以论文原文为准。
