Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017GL076448 |
SAMI3 Simulations of a Persistent Plasmasphere Plume | |
Krall, J.1; Huba, J. D.1; Borovsky, J. E.2 | |
2018-04-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2018 |
卷号 | 45期号:8页码:3374-3381 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | The Naval Research Laboratory Sami3 is Also a Model of the Ionosphere (SAMI3) ionosphere/plasmasphere code is used to examine the physics of a long-lived plasmasphere plume. The May 1994 storm is simulated. Here a plasma density peak was observed in the afternoon sector by multiple spacecraft at geosynchronous orbit on each of 11 continuous days. The storm is modeled by adding a Kp-driven Volland/Stern-Maynard/Chen analytic convection potential to the self-consistent electric potential that is driven by thermosphere winds. Results are compared to measurements of the cold-ion density from the 1989-046 spacecraft in geosynchronous orbit. We find that many observed features are reproduced by SAMI3 and that high-speed, field-aligned plasma flows from the ionosphere contribute significantly to the plume density. Plain Language Summary During a storm, a plume forms in the cold, near-Earth plasma known as the plasmasphere. While these plumes have been described as "draining" the plasmasphere, the plasmasphere does not contain enough plasma to supply a long-lasting plume. We investigate the source of the plume plasma in the case where the storm lasts nearly 2 weeks. We show that high-speed flows from the ionosphere, similar to those measured in the "polar wind," supply the plume outflow. The model shows excellent agreement with measurements of a plume during a 12-day storm. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000435745500008 |
WOS关键词 | IONOSPHERIC ELECTRODYNAMIC MODELS ; GEOMAGNETIC STORM ; MIDLATITUDE IONOSPHERE ; GEOSYNCHRONOUS ORBIT ; DRAINAGE PLUMES ; LOW-LATITUDE ; POLAR WIND ; FLUX TUBE ; MAGNETOSPHERE ; CONVECTION |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/26339 |
专题 | 气候变化 |
作者单位 | 1.Naval Res Lab, Plasma Phys Div, Washington, DC 20375 USA; 2.Space Sci Inst, Ctr Space Plasma Phys, Boulder, CO USA |
推荐引用方式 GB/T 7714 | Krall, J.,Huba, J. D.,Borovsky, J. E.. SAMI3 Simulations of a Persistent Plasmasphere Plume[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(8):3374-3381. |
APA | Krall, J.,Huba, J. D.,&Borovsky, J. E..(2018).SAMI3 Simulations of a Persistent Plasmasphere Plume.GEOPHYSICAL RESEARCH LETTERS,45(8),3374-3381. |
MLA | Krall, J.,et al."SAMI3 Simulations of a Persistent Plasmasphere Plume".GEOPHYSICAL RESEARCH LETTERS 45.8(2018):3374-3381. |
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