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首页> 外文期刊>Journal of Geophysical Research. Biogeosciences >A real-time model-observation comparison of F-2 peak electron densities during the Upper Atmospheric Research Collaboratory campaign of October 1997
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A real-time model-observation comparison of F-2 peak electron densities during the Upper Atmospheric Research Collaboratory campaign of October 1997

机译：1997年10月上层大气研究合作运动中F-2峰值电子密度的实时模型观测比较

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摘要

The first-principles, time-dependent Thermosphere-Ionosphere Nested Grid (TING) Model has been run automatically in real time to support the Upper Atmospheric Research Collaboratory (UARC) campaigns. This real-time modeling capability is the first published description of the running of a comprehensive model of the coupled thermosphere-ionosphere system that successfully performs real-time nowcasts and short-term forecasts of the upper atmosphere. These nowcasts and forecasts use observed real-time geophysical parameters as model input. Real-time modeling also provides an opportunity to evaluate rigorously the accuracy of the model for space weather purposes by comparing model outputs with observations. Digisonde-derived F-2 peak electron densities from three sites (Millstone Hill, Tromso, and Sondre Stromfjord) were compared with the corresponding TING model outputs during the October 14-29, 1997, UARC campaign. It is found that under solar minimum, equinox, geomagnetically quiet conditions, the F-2 peak electron densities simulated by the model were in good agreement with those observed by the Digisondes. At both midlatitudes and high latitudes the TING Model almost reproduced the observed diurnal variations of F-2 peak electron densities. There were, however, short-period variations of F-2 peak electron densities during both day and night that were not simulated by the model. [References: 30]
机译：第一原则，与时间有关的热球-电离层嵌套网格（TING）模型已自动实时运行，以支持上层大气研究合作组织（UARC）的活动。这种实时建模功能是首次发布的运行热球-电离层耦合系统综合模型的成功描述，该系统成功地执行了高层大气的实时临近预报和短期预报。这些临近预报和预报使用观测到的实时地球物理参数作为模型输入。实时建模还提供了一个机会，可以通过将模型输出与观测值进行比较来严格评估用于空间天气目的的模型的准确性。在1997年10月14日至29日举行的UARC运动中，将来自三个地点（密尔斯顿希尔，特罗姆瑟和桑德雷·斯特罗姆峡湾）的Digisonde衍生的F-2峰值电子密度与相应的TING模型输出进行了比较。发现在太阳极小，春分，地磁安静的条件下，该模型模拟的F-2峰值电子密度与Digisondes观测到的一致。在中纬度和高纬度，TING模型几乎再现了观测到的F-2峰值电子密度的日变化。但是，白天和晚上都存在F-2峰值电子密度的短期变化，而该模型并未对此进行模拟。 [参考：30]

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