Computer Studies of Wave Pheonomena in Space Plasma (Atmospheric Sciences)

哈德森博士将进行四个研究项目。第一个涉及对太空中活跃实验的模拟。提出了包括束流密度梯度的粒子模拟，使用了一种扩展一维静电粒子编码以保留密度梯度信息的算法。第二个主题是地球等离子体顶层附近哨声的产生。一种包括磁场梯度效应的混合电磁代码将被扩展到包括电子粒子动力学。目的是比较等离子体顶区哨声的非线性放大和对流放大。第三个主题是研究两种扩展仿真系统规模的硬件技术。最后的研究项目模拟了H~+-O~+等离子体中的离子声双电层演化。这些被认为对极光粒子加速有贡献的局域势能跳跃是磁化离子声学湍流的基本特征。互动活动将包括教授空间等离子体实验模拟的高级研讨会课程，并就她的研究进行研讨会。此外，哈德森博士还将组织一系列关于星外物理的研讨会，职业女性科学家将参加。该项目进一步推动了VPW计划的目标，即：(1)为妇女提供机会，在NSF资助的工程和科学学科中发展她们的职业生涯；(2)通过提高受雇于工业、政府和学术机构的女科学家和工程师的知名度，鼓励妇女追求科学和工程事业。通过鼓励妇女参与科学，这是对国家未来科学活力的宝贵投资。

Dr. Hudson will undertake four research projects. The first involves simulations of active experiments in space. Particle simulations including beam density gradients are proposed, using an algorithm which extends a one dimensional electrostatic particle code to retain density gradient information. The second topic is whistler noise generation near the earth's plasmapause. A hybrid electromagnetic code, which includes magnetic field gradient effects, will be extended to include electron particle dynamics. The objective is to compare nonlinear and convective amplification of whistlers in the plasmapause region. The third topic is research into two hardware techniques for extending the size of simulation systems. The final research project simulates ion acoustic double layer evolution in an H+ - O+ plasma. These localized potential jumps, which are thought to contribute to auroral particle acceleration, are a basic feature of magnetized ion acoustic turbulence. Interactive activities will include teaching a senor seminar course in Simulations of Space Plasma Experiments and giving seminars on her research. Additionally, Dr. Hudson will organize a series of seminars on extraterestrial physics in which professional women scientists will participate. This project furthers VPW program objectives which are (1) to provide opportunities for women to advance their careers in engineering and in the disciplines of science supported by NSF and (2) to encourage women to pursue careers in science and engineering by providing greater visibility for women scientists and engineers employed in industry, government, and academic institutions. By encouraging the participation of women in science, it is a valuable investment in the Nation's future scientific vitality.