| 地球等离子体片中磁泡对地面磁场的扰动 |
| |
| 引用本文： | 陈出新,蔡霞,张建辉,肖永登.地球等离子体片中磁泡对地面磁场的扰动[J].地球物理学报,2004,47(2):207-211. |
| |
| 作者姓名： | 陈出新 蔡霞 张建辉 肖永登 |
| |
| 作者单位： | 中国科学技术大学地球和空间科学学院,合肥,230026;中国科学技术大学地球和空间科学学院,合肥,230026;中国科学技术大学地球和空间科学学院,合肥,230026;中国科学技术大学地球和空间科学学院,合肥,230026 |
| |
| 基金项目： | 国家自然科学基金项目 ( 4 0 1740 2 6，40 0 740 41) |
| |
| 摘 要： | 观测到的爆发流（Busty Bulk Flows，简称为BBFs）有很多主要特征都可以用磁泡图像描述 . 磁泡模型认为电离层中绝大部分电势降落都发生在磁泡中，据此可以估算它周围的霍尔电 流及其在地面引起的地磁扰动. 将本文结果与SMA（Scandinavian Magnetometer Array）雷 达阵列观测的BBFs的特征进行比较之后，发现二者符合得很好. 这表明BBFs与磁泡在引起地 面磁场扰动上的表征是一样的，暗示BBFs很可能就是磁泡.
|
| 关 键 词： | 等离子体片 地磁扰动 爆发流 磁泡 霍尔电流 |
| 文章编号： | 0001-5733(2004)02-0207-05 |
| 收稿时间： | 2003-3-3 |
| 修稿时间： | 2003-12-1 |
Ground magnetic field disturbance caused by b ubbles in the Earth's plasma sheet. |
| |
| CHEN Chu-Xin CAI Xia ZHANG Jian-Hui XIAO Yong-Deng School of Earth and Space Sciences,University of Science and Technology of China,Hefei ,China.Ground magnetic field disturbance caused by b ubbles in the Earth's plasma sheet.[J].Chinese Journal of Geophysics,2004,47(2):207-211. |
| |
| Authors: | CHEN Chu-Xin CAI Xia ZHANG Jian-Hui XIAO Yong-Deng School of Earth and Space Sciences University of Science and Technology of China Hefei China |
| |
| Institution: | School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China |
| |
| Abstract: | Most of the major observed characteristics of the bursty bulk flows (h ereafter abbreviated as BBFs) can be interpreted naturally in terms of the bubbl e picture. In the “bubble” model, bubbles carried a great percentage of the to ta l potential drop in the ionosphere. Hereby we can estimate the Hall current arou nd a bubble and its disturbance on the ground magnetic field. By comparison with the characteristics of BBFs observed by the Scandinavian Magnetometer Array, a very good agreement between the two disturbances follows. This implies that BBFs are probably bubbles. |
| |
| Keywords: | Plasma sheet Geomagnetic disturbance Bursty bulk flows Bubbles Hall current |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《地球物理学报》浏览原始摘要信息 |
| 点击此处可从《地球物理学报》下载免费的PDF全文 |
