...
  • 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 >The quasi-6 day wave and its interactions with solar tides
【24h】

The quasi-6 day wave and its interactions with solar tides

机译：quasi-6天波及其相互作用太阳的潮汐

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

Thermosphere Ionosphere Mesosphere Energetics and Dynamics/Sounding of the Atmosphere using Broadband Emission Radiometry (TIMED/SABER) temperature measurements between 20 and 110 km altitude and ±50° latitude during 2002-2015 are employed to reveal the climatological characteristics of the quasi-6 day wave (Q6DW) and evidence for secondary waves (SW) resulting from its nonlinear interactions with solar tides. The mean period is 6.14d with a standard deviation (σ) of 0.26d. Multiyear-mean maximum amplitudes (3-5 K, σ - 4 K) occur within the mesosphere-lower thermosphere (MLT) region between 75 and 100 km during day of year (DOY) 60-120 and 180-300 in the Northern Hemisphere and DOY 0-110 and 200-300 in the Southern Hemisphere. Amplitudes approach 10 K in some individual years. At midlatitudes downward phase progression exists from 100 to 35 km with a mean vertical wavelength of about 70 km. Signatures of SW due to Q6DW-tide interactions appear at distinct space-based zonal wave numbers (k_s) in temperature spectra constructed in the reference frame of the TIMED orbit. However, SW produced by several different tides can collapse onto the same (k_s) value, rendering their relative contributions indistinguishable. Nevertheless, by determining the space-based wave amplitudes attached to these values of (k_s), and demonstrating that they are a large fraction of the interacting wave amplitudes, we conclude that the aggregate contributions of the SW to the overall wave spectrum must be significant. Because the SW have periods, zonal wave numbers, and latitude-height structures different from those of the primary waves, they contribute additionally to the complexity of the wave spectrum. This complexity is communicated to the ionosphere through collisions or through the dynamo electric fields generated by the total wave spectrum.
机译：热大气层电离层中间层能量使用动力学/测深的气氛宽带发射辐射测量(时间/剑)温度测量20至110公里高度和±50°纬度在2002 - 2015年期间用来揭示了气候quasi-6天波的特征(Q6DW)二次波和证据(SW)产生的太阳能潮汐的非线性相互作用。用标准的平均时间是6.14 d标准差(σ)0.26 d。振幅(3 - 5 K,σ- 4 K)内mesosphere-lower热电离层(MLT)地区日期间75至100公里(机灵)60 - 120和180 - 300年在北半球机灵0 - 110和200 - 300年在南半球。在某些个别振幅方法10 K年。存在从100年到35公里平均垂直波长约70公里。Q6DW-tide互动出现在不同的天基纬向波数(k_s)在参考温度谱构造帧的定时的轨道。几种不同的潮汐可以到崩溃(k_s)值相同,呈现他们的相对无法区分的贡献。确定天基波振幅(k_s)连接到这些值,证明他们是一个大的一部分相互作用波振幅,我们得出这样的结论:西南的总贡献整体波谱必须显著。因为西南时期,纬向波数,和latitude-height结构不同主波,他们的贡献另外波的复杂性光谱。通过碰撞或通过电离层发电机产生的电场波频谱。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
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