...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Geophysical Research, A. Space Physics: JGR >Ion temperature and density relationships measured by CINDI from the C/NOFS spacecraft during solar minimum
【24h】

Ion temperature and density relationships measured by CINDI from the C/NOFS spacecraft during solar minimum

机译：离子温度和密度测量的关系辛迪从C / nof飞船在太阳最低

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The Ion Velocity Meter (IVM), a part of the CINDI instrument package on board theC/NOFS spacecraft, makes in situ measurements of plasma temperature, composition,density, and velocity. The 16 April 2008 launch of C/NOFS coincided with the deepestsolar minimum since the space age began with F10.7 cm radio fluxes in the 60-70 solarflux unit range. Because of the 13° inclination of the orbit the location of the perigeeadvances through all local times in about 66 days. This allows seasonal sampling ofionospheric temperature, density, and composition as a function of local time, magneticlatitude, and altitude. Measurements taken near the spacecraft's 402 km perigee altitudeindicate an unusually cold low-density ionosphere with nighttime ion temperatures at themagnetic equator reaching as low as 600 K with an [O~+]/[H~+] ratio of 4 and maximumdaytime temperatures of 1300 K. The O~+ to H~+transition height is very low and at thehighest altitudes measured H+ comprises over 75% of the ionospheric plasma at all localtimes. We compare average values of the measured parameters with those from theInternational Reference Ionosphere and with incoherent scatter radar measurements fromJicamarca.
机译：离子速度计(IVM),辛迪的一部分仪器包上theC / nof航天器,使原位测量等离子体温度,组合、密度和速度。2008年推出的C / nof正值deepestsolar太空时代开始以来最低F10.7厘米电台在60 - 70 solarflux通量单位范围内。轨道的位置perigeeadvances通过所有当地时间约66天。季节性抽样ofionospheric温度,密度和成分作为当地的函数时间、magneticlatitude和高度。测量飞船附近的402公里近地点altitudeindicate异常寒冷低密度与夜间电离层离子在赤道themagnetic达到高温低至600 K (O ~ +) / (H ~ +)比4maximumdaytime温度1300 K。H ~ +过渡高度很低,最高海拔测量H +组成75%的电离层等离子体作用。我们比较测量的平均值参数与国际参考电离层和非相干散射雷达测量fromJicamarca。

著录项

相似文献

  • 外文文献
  • 中文文献
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号