The Solar Wind Near the Sun

该提案的直接目标是利用无线电遥感技术测量太阳附近的太阳风。PI在之前的一项拨款下进行的观测表明，快速极地流的主要加速发生在比之前预期的更靠近太阳的地方。此外，先前的观测显示，在质子拉莫尔半径以上的尺度上，存在密度波动增强的成分。这两个结果对日冕的加热和太阳风的加速都很重要，但它们必须通过额外的观测来证实。这项研究将主要有助于对太阳，特别是太阳风的基本理解；即太空天气预报。此外，所采用的技术可能对海洋边界层的研究有用，对海洋上空的短程无线电通信很重要。

This proposal's immediate objective is measuring the solar wind near the Sun using radio remote-sensing techniques. The PI's observations made under a previous grant suggest the main acceleration of the fast polar streams takes place closer to the Sun than previously expected. In addition, prior observations show a component of enhanced density fluctuations at scales just above the proton Larmor radius. Both of these results are important for the heating of the corona and acceleration of the solar wind, but they will have to be confirmed by additional observations. This research will primarily contribute to a fundamental understanding of the Sun in general and solar wind in particular; i.e., space weather forecasting. Moreover, the techniques employed may be useful for the study of the marine boundary layer, important for short range radio communications over the ocean.