Semidiurnal tidal signature in sporadic E occurrence rates derived from GPS radio occultation measurements at higher midlatitudes

被引：98
作者：
Arras, C. [1 ]
Jacobi, C. [2 ]
Wickert, J. [1 ]
机构：
[1] German Res Ctr Geosci GFZ, Helmholtz Ctr Potsdam, Dept Geodesy & Remote Sensing 1, Potsdam, Germany
[2] Univ Leipzig, Inst Meteorol, Leipzig, Germany
来源：
ANNALES GEOPHYSICAE | 2009年 / 27卷 / 06期
关键词：
Ionosphere; Ionosphere -atmosphere interactions; Mid-latitude ionosphere; Meteorology and atmospheric dynamics; Thermospheric dynamics; E LAYERS; PLANETARY-WAVES; DIURNAL TIDES; METEOR RADAR; REGION; CHAMP; THERMOSPHERE; VARIABILITY; WINDS; MLT;
D O I：
10.5194/angeo-27-2555-2009
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
GPS (Global Positioning System) Radio occultation (RO) measurements from CHAMP, GRACE and FORMOSAT-3/COSMIC satellites at Northern Hemisphere midlatitides (50 degrees-55 degrees N) are analysed to obtain the diurnal variation of sporadic E layer occurrence frequency in 2006 and 2007. Interconnections with zonal wind shears measured by meteor radar at Collm (51.3 degrees N, 13 degrees E), Germany, are investigated. According to theory, maximum Es occurrence is expected when the zonal wind shear, which is mainly produced by the semidiurnal tide in midlatitudes, is negative. This is confirmed by the present measurements and analysis.
引用
收藏
页码：2555 / 2563
页数：9
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