Standard Dataset of Ionospheric Plasma Bubbles over Southern China Based on Airglow Observation
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摘要: 气辉成像观测凭借其高时空分辨率和大范围连续监测能力,为研究电离层赤道等离子泡的水平精细结构及其演化特征提供了重要手段。然而,当前缺乏高质量、专业标注的等离子体泡数据集,这严重制约了监督式人工智能算法在该领域的应用研究。为此,本研究构建了首个基于气辉观测的电离层等离子体泡标准数据集,包含等离子体泡事件数据产品和精确轮廓标注数据产品。该数据集源自云南曲靖站630nm波段气辉成像仪历时一个完整太阳活动周(2012-2022年)的连续观测,所有原始数据均经过图像增强、方位校正、几何畸变校正及地理坐标投影等标准化预处理,并由专家团队完成等离子体泡事件识别及轮廓标注。数据集具有3分钟的高时间分辨率,系统收录了不同太阳活动强度下的等离子体泡事件样本,涵盖"I型"、"Y型"等多种典型形态。本数据集为开发高精度监督式人工智能算法提供了高质量基准数据,有助于促进基于气辉成像的电离层等离子泡自动化检测与形态演化研究Abstract: Airglow imaging observations, with their high spatiotemporal resolution and large-scale continuous monitoring capability, provide a crucial means for studying the fine horizontal structures and evolutionary characteristics of ionospheric equatorial plasma bubbles. However, the current lack of high-quality, professionally annotated plasma bubble datasets severely restricts the application of supervised artificial intelligence (AI) algorithms in this field. To address this issue, this study constructs the first standardized dataset of ionospheric plasma bubbles based on airglow observations, including plasma bubble event data products and precise contour annotation data products. The dataset is derived from continuous observations over a full solar activity cycle (2012–2022) by a 630 nm band airglow imager at the Qujing Station in Yunnan, China. All raw data underwent standardized preprocessing, including image enhancement, azimuth correction, geometric distortion correction, and geographic coordinate projection. Expert teams then performed plasma bubble event identification and contour annotation. With a high temporal resolution of 3 minutes, the dataset systematically documents plasma bubble events under varying solar activity intensities, covering multiple typical morphologies such as "I-shaped" and "Y-shaped" structures. This dataset provides high-quality benchmark data for developing high-precision supervised AI algorithms, facilitating automated detection and morphological evolution research of ionospheric plasma bubbles based on airglow imaging.
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