Space-weather HMI Active Region Patch (SHARP)

SHARP stands for Space-weather HMI Active Region Patch. A SHARP is a DRMS series that contains (1) various space-weather quantities calculated from the photospheric vector magnetogram data and stored as FITS header keywords, and (2) 31 data segments (described in detail below), including each component of the vector magnetic field, the line-of-sight magnetic field, continuum intensity, doppler velocity, error maps and bitmaps. The data segments are not full-disk; rather, they are partial-disk, automatically-identified active region patches. SHARPs are calculated every 12 minutes. Often, there is more than one active region on the solar disk at any given time. Thus, SHARPs are indexed by two prime keys: time, T_REC, and HMI Active Region Patch Number, HARPNUM.SHARP代表空间天气HMI活动区域补丁。SHARP是一个DRMS系列，其中包含以下内容：（1）从光球矢量磁图数据计算得到的多种空间天气量，并以FITS头关键字的形式存储；（2）31个数据段（详细描述如下），包括矢量磁场的各个分量、视向磁场、连续强度、多普勒速度、误差图和位图。这些数据段并非全盘数据，而是自动识别的部分磁盘活动区域补丁。SHARPs每12分钟计算一次。通常，在任何给定时刻，太阳盘上会有多个活动区域。因此，SHARPs通过两个主要键进行索引：时间，T_REC，以及HMI活动区域补丁编号，HARPNUM。

搜集汇总

背景与挑战

背景概述

SHARP数据集提供太阳活动区的部分日面观测数据，包含矢量磁场、连续谱强度等多维度数据，每12分钟更新一次，是研究太阳活动的重要资源。