...
  • 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 >Spatio-temporal characterization of the equatorial electrojet from CHAMP, Orsted, and SAC-C satellite magnetic measurements
【24h】

Spatio-temporal characterization of the equatorial electrojet from CHAMP, Orsted, and SAC-C satellite magnetic measurements

机译：赤道的时空特征电喷流从冠军,差劲,SAC-C卫星磁测量

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 equatorial electrojet (EEJ) is an eastward electric current on the day-side, flowing in a narrow band along the dip equator in the ionospheric E region. Recent magnetic observations from the CHAMP, ?rsted, and SAC-C satellites, comprising more than 95,000 dip equator crossings from 1999 to 2006, have provided an unprecedented longitudinal coverage of the EEJ magnetic signature. We have used these data to construct an empirical model of the EEJ current climatological mean and day to day variability as a function of longitude, local time, season, and solar flux. Our model has been successfully verified against vertical drift data from the JULIA radar at Jicamarca. We have also used the EEJ observations to estimate the self-correlation of the EEJ, confirming short longitudinal correlation lengths of 15° and finding a temporal correlation length of 2.4 h. Our model's predictions of the eastward electric field and its standard deviation may provide useful input to various kinds of ionospheric simulations. Coefficients and software are available online at http://models.geomag.us/EEJ.html and http://www.earthref.org.
机译：赤道电喷流(EEJ)是一个向东电流在白天半球,在流动沿着磁赤道的窄带电离层E。观察从冠军? rst和SAC-C卫星,包括超过95000下降赤道口岸从1999年到2006年,提供了一个前所未有的纵向覆盖EEJ磁的签名。EEJ数据构建实证模型当前的气候意味着和每一天经度变化的函数,地方时间、季节和太阳能通量。针对垂直漂移数据的成功验证从茱莉亚在Jicamarca雷达。使用EEJ观察来评估自相关的EEJ,确认短纵向关联长度15°找一个时间相关的长度2.4 h。我们的模型预测的东方电气字段及其标准差可以提供有用的输入各种各样的电离层模拟。可以在网上http://models.geomag.us/EEJ.html和

著录项

相似文献

  • 外文文献
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