DOI: 10.1002/2018JA025241
Scopus记录号: 2-s2.0-85047563159
论文题名: Including Kinetic Ion Effects in the Coupled Global Ionospheric Outflow Solution
作者: Glocer A. ; Toth G. ; Fok M.-C.
刊名: Journal of Geophysical Research: Space Physics
ISSN: 21699380
出版年: 2018
卷: 123, 期: 4 起始页码: 2851
结束页码: 2871
语种: 英语
英文关键词: ionospheric outflow
; magnetosphere
; magnetospheric composition
; modeling
英文摘要: We present a new expansion of the Polar Wind Outflow Model to include kinetic ions using the particle-in-cell (PIC) approach with Monte Carlo collisions. This implementation uses the original hydrodynamic solution at low altitudes for efficiency and couples to the kinetic solution at higher altitudes to account for kinetic effects important for ionospheric outflow. The modeling approach also includes wave-particle interactions, suprathermal electrons, and a hybrid parallel computing approach combining shared and distributed memory paralellization. The resulting model is thus a comprehensive, global, model of ionospheric outflow that can be run efficiently on large supercomputing clusters. We demonstrate the model's capability to study a range of problems starting with the comparison of kinetic and hydrodynamic solutions along a single field line in the sunlit polar cap, and progressing to the altitude evolution of the ion conic distribution in the cusp region. The interplay between convection and the cusp on the global outflow solution is also examined. Finally, we demonstrate the impact of these new model features on the magnetosphere by presenting the first two-way coupled ionospheric outflow-magnetosphere calculation including kinetic ion effects. ©2018. American Geophysical Union. All Rights Reserved. This article has been contributed to by US Government employees and their work is in the public domain in the USA. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/114236
Appears in Collections: 气候减缓与适应
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作者单位: NASA/GSFC, Greenbelt, MD, United States; Climate and Space Sciences and Engineering, University of Michigan, Ann Arbor, MI, United States
Recommended Citation:
Glocer A.,Toth G.,Fok M.-C.. Including Kinetic Ion Effects in the Coupled Global Ionospheric Outflow Solution[J]. Journal of Geophysical Research: Space Physics,2018-01-01,123(4)