地磁Dst指数数据（2017）

本数据是WDC地磁数据中心(日本京都)提供的1957-2016年间的地磁Dst指数数据，地磁Dst指数是描述地磁暴强度的一种地磁指数，单位为nT。磁暴发生时，地磁场中各个分量都发生激烈变化，其中水平分量H（或者X分量）的变化最大，最能代表磁暴过程的特点，尤其是中低纬度的地区H分来变化最为突出。Dst指数是全球均匀间隔的数个中低纬度地磁台站的H分量在消去正常日变化后的小时平均值。它是研究磁暴过程的重要数据，本数据是世界通用、也是唯一的Dst指数数据。

This dataset contains the geomagnetic Dst index data from 1957 to 2016, provided by the WDC Geomagnetic Data Center in Kyoto, Japan. The geomagnetic Dst index is a type of geomagnetic index used to describe the intensity of geomagnetic storms, with the unit of nanotesla (nT). During geomagnetic storms, all components of the Earth's magnetic field undergo dramatic changes. Among them, the horizontal component H (or X component) exhibits the largest variation, which best represents the characteristics of the geomagnetic storm process, especially in mid- and low-latitude regions where the changes in the H component are most prominent. The Dst index is calculated as the hourly average of the H component from several evenly spaced geomagnetic observatories located in mid- and low-latitude regions across the globe, after removing the regular diurnal variation. It is an important dataset for studying geomagnetic storm processes, and this is the globally recognized and only available Dst index data.

搜集汇总

背景与挑战

背景概述

该数据集提供2017年的地磁Dst指数数据，用于描述地磁暴强度，基于全球中低纬度台站的H分量计算，是研究磁暴过程的关键科学数据。数据来源于世界地磁中心（日本京都），具有世界通用性和唯一性，但需注意数据可能包含暂时或快视状态，影响其最终准确性。