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首页> 外文期刊>Journal of Geophysical Research, A. Space Physics: JGR >First Results From the Ionospheric Extension of WACCM-X During the Deep Solar Minimum Year of 2008
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First Results From the Ionospheric Extension of WACCM-X During the Deep Solar Minimum Year of 2008

机译：第一个电离层扩展的结果WACCM-X期间的太阳活动极小期一年2008

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摘要

New ionosphere and electrodynamics modules have been incorporated in the thermosphere and ionosphere eXtension of the Whole Atmosphere Community Climate Model (WACCM-X), in order to self-consistently simulate the coupled atmosphere-ionosphere system. The first specified dynamics WACCM-X v.2.0 results are compared with several data sets, and with the Thermosphere-Ionosphere-Electrodynamics General Circulation Model (TIE-GCM), during the deep solar minimum year. Comparisons with Thermosphere Ionosphere Mesosphere Energetics and Dynamics satellite of temperature and zonal wind in the lower thermosphere show that WACCM-X reproduces the seasonal variability of tides remarkably well, including the migrating diurnal and semidiurnal components and the nonmigrating diurnal eastward propagating zonal wavenumber 3 component. There is overall agreement between WACCM-X, TIE-GCM, and vertical drifts observed by the Communication/Navigation Outage Forecast System (C/NOFS) satellite over the magnetic equator, but apparent discrepancies also exist. Both model results are dominated by diurnal variations, while C/NOFS observed vertical plasma drifts exhibit strong temporal variations. The climatological features of ionospheric peak densities and heights (NmF_2 and hmF_2) from WACCM-X are in general agreement with the results derived from Constellation Observing System for Meteorology, Ionosphere and Climate (COSMIC) data, although the WACCM-X predicted NmF2 values are smaller, and the equatorial ionization anomaly crests are closer to the magnetic equator compared to COSMIC and ionosonde observations. This may result from the excessive mixing in the lower thermosphere due to the gravity wave parameterization. These data-model comparisons demonstrate that WACCM-X can capture the dynamic behavior of the coupled atmosphere and ionosphere in a climatological sense.
机译：新的电离层和电动力学模块在热电离层和合并电离层的延伸整个气氛社区气候模型(WACCM-X),为了自我一贯地模拟耦合atmosphere-ionosphere系统。动力学WACCM-X v.2.0结果相比几个数据集,和Thermosphere-Ionosphere-Electrodynamics一般循环模型(TIE-GCM),在深太阳活动极小期。电离层中间层能量和动力卫星的温度和纬向风较低的热电离层表明WACCM-X繁殖潮汐显著的季节性变化嗯,包括周日和迁移和nonmigrating半日组件日东传播纬向波数3组件。WACCM-X、TIE-GCM和垂直观测到通信/导航故障预测系统(C / nof)卫星磁赤道,但也存在明显的差异。模型的结果都是由昼夜变化,而C / nof观察垂直的等离子体飘中表现出很强的时态变化。电离层峰值的气候特征密度和高度(NmF_2和hmF_2)WACCM-X一般协议的结果来自星座观测系统气象学、电离层和气候(宇宙)预测数据,尽管WACCM-X NmF2值更小,赤道电离靠近磁赤道异常波峰而宇宙和ionosonde观察。这可能是因为过度混合的较低的热电离层由于重力波参数化。证明WACCM-X可以捕获动态行为的耦合大气和电离层在一个气候意义。

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