一个数据库的地磁观测月度意味着:从历史到卫星时代
William Brown1, Susan Macmillan1, Eleanor Maume1
1British Geological Survey, The Lyell Centre, Edinburgh, EH14 4AP UK.
Earth, planets, and space : EPS
|January 19, 2026
概括
这项研究将来自327个天文台的历史和当前地磁数据统一到一个单一的,可访问的数据库中. 研究人员现在可以访问全球地磁场研究的一致月度平均值.
科学领域:
- 地质物理学 地质物理学
- 地球科学 地球科学 地球科学
- 数据科学数据科学数据科学
背景情况:
- 地磁观测以前被存储在不同的数据库中.
- 不一致的格式阻碍了对历史和当前数据的全面分析.
研究的目的:
- 创建一个统一的,可访问的绝对地面地磁观测数据库.
- 为研究人员提供一致的长期数据集,用于全球地磁场研究.
主要方法:
- 将来自多个来源的数据整合到统一的格式 (时间分辨率,坐标系统).
- 应用记录的基线校正,以创建月度平均值的统一向量时间序列.
- 开发了一个免费的网络服务,匿名访问数据,每月更新一次.
主要成果:
- 建立了一个统一的数据库,涵盖全球327个天文台,数据从1883年到现在.
- 来自格林威治皇家天文台的数字化早期磁性数据 (1841-1925年).
- 将全面的数据集免费提供给研究界.
结论:
- 统一数据库显著提高了地磁研究的可访问性和一致性.
- 早期的数字化数据虽然不完整,但为历史磁场变化提供了宝贵的见解.
- 该资源支持对地球磁场动态和长期变化的未来研究.
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