The Solar Wind Near the Sun

这项提议的直接目标是使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接近太阳的地方。此外，先前的观测显示，在质子拉莫尔半径上方的尺度上，密度涨落增强。这两个结果对于日冕的加热和太阳风的加速都很重要，但它们还需要通过更多的观测来证实。这项研究将主要有助于从根本上了解太阳，特别是太阳风；即空间天气预报。此外，所采用的技术可能有助于研究海洋边界层，这对海洋上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.