Synoptic Studies of Solar Magnetism and Dynamics Using the 150-foot Solar Tower on Mt. Wilson

研究人员将主要进行研究，以提高对太阳变化的理解。主要的努力是继续，实际上是改进，在山上150英尺高的太阳塔上的天气观测计划。威尔逊测量和记录太阳表面磁性和动力学的状态。太阳是地球气候系统外部可变性的主要来源，也是空间天气的来源。对太阳的直接研究是了解气候变化以及监测和预测空间天气状况的计划的重要组成部分。这个项目强调太阳的磁性，因为大多数太阳的变化直接受到太阳磁场状态的影响。22年太阳磁周期的原因仍然是一个难以捉摸的问题，阻碍了以完全令人满意的方式解决变化。由于太阳表面的磁循环是全球性的，所有时间尺度的数据对于发现太阳变化的根本原因至关重要。每天，Mt。威尔逊天文台（MWO）计划获得了多达20个太阳磁场和速度场的全磁盘扫描，以提供可以解决全球太阳变化问题的记录。这两个领域的历史时间序列必须足够长，以研究太阳活动周期，150英尺的塔计划自1967年开始数字记录以来一直提供这一历史。作为该项目的一部分，调查人员将考虑对较旧的数据进行几项更正，并将组织一次讲习班，在目前定期获得全磁盘磁图和多普勒记录的调查人员之间对磁场数据进行相互比较。

The investigators will conduct research primarily to enhance understanding of solar variability. The main effort is to continue, and indeed to improve, the synoptic program of observations at the 150-foot solar tower on Mt. Wilson that measures and records the state of solar surface magnetism and dynamics. The sun is the dominant source of external variability for the Earth's climate system and is the source of space weather. Direct study of the sun is an essential part of a program to understand climate change and to monitor and predict the state of space weather. This project emphasizes solar magnetism because most solar variability is directly influenced by the state of the sun's magnetic field. The cause or causes of the twenty-two-year solar magnetic cycle remain an elusive problem that prevents addressing variability in a fully satisfactory manner. Since the magnetic cycle is of a fully global scale on the solar surface, data on all timescales are essential to discover the underlying causes of solar variability. Each day the Mt. Wilson Observatory (MWO) program obtains up to twenty full disk scans of the sun's magnetic field and velocity field to provide a record which can address questions of global solar variability. The historical time series of both fields must be sufficiently long to study the solar cycle and the 150-foot tower program has provided this history since its digital record began in 1967. As part of this project the investigators will consider several corrections to the older data and will organize a workshop for the intercomparison of the magnetic field data among investigators who now regularly obtain full-disk magnetogram and dopplergram records.