Low latitude ionosphere-thermosphere dynamics studies with inosonde chain in Southeast Asia
Low latitude ionosphere-thermosphere dynamics studies with inosonde chain in Southeast Asia
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DOI：
10.5194/angeo-25-1569-2007
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发表时间：
2007-07
影响因子：
1.9
通讯作者：
T. Maruyama;M. Kawamura;S. Saito;K. Nozaki;H. Kato;N. Hemmakorn;T. Boonchuk;T. Komolmis;C. H. Duyen
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文献类型：
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作者：
T. Maruyama;M. Kawamura;S. Saito;K. Nozaki;H. Kato;N. Hemmakorn;T. Boonchuk;T. Komolmis;C. H. Duyen
抽象的。在东南亚地区建立了一个由经向链和赤道对组成的电离层探空网。四个电离层探空仪中有三个位于100°E的磁子午线上；两个靠近泰国北部和印度尼西亚西苏门答腊岛的磁共轭点；另一个位于泰国马来半岛的磁赤道附近。第四个离子探空仪也在越南的磁赤道附近，但与子午链向东相隔约6.3°。为了进行初步数据分析，研究了子午链三个站的夜间电离层高度变化。结果表明，该网络的协调在研究电离层/热层动力学方面具有很大的潜力。通过模式计算，推断出热层中性风，并与HWM93经验热层风模式进行了比较。发现了经验模式中没有表示的高阶风速变化。
Abstract. An ionosonde network consisting of a meridional chain and an equatorial pair was established in the Southeast Asian area. Three of four ionosondes are along the magnetic meridian of 100° E; two are close to the magnetic conjugate points in Northern Thailand and West Sumatra, Indonesia, and the other is near the magnetic equator in the Malay Peninsula, Thailand. The fourth ionosonde is also near the magnetic equator in Vietnam but separated by about 6.3° towards east from the meridional chain. For a preliminary data analysis, nighttime ionospheric height variations at the three stations of the meridional chain were examined. The results demonstrate that the coordination of the network has a great potential for studying ionosphere/thermosphere dynamics. Through the assistance of model calculations, thermospheric neutral winds were inferred and compared with the HWM93 empirical thermospheric wind model. Higher-order wind variations that are not represented in the empirical model were found.