OVATION‐SM: A model of auroral precipitation based on SuperMAG generalized auroral electrojet and substorm onset times
OVATION‐SM: A model of auroral precipitation based on SuperMAG generalized auroral electrojet and substorm onset times
复制标题
OVATION-SM：基于 SuperMAG 广义极光电射流和亚暴爆发时间的极光降水模型
DOI：
10.1002/jgra.50343
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
K. Liou
中科院分区：
文献类型：
--
作者：
E. Mitchell;P. Newell;J. Gjerloev;K. Liou
OVATION‐SM是一种不同类型的极光能量通量的经验模型。OVATION‐SM是SME指数（或单能量极光SME指数的平方根）、上一次亚暴发生后的时间和下一次亚暴发生前的时间的线性组合。由于OVATION‐SM是基于地面磁强计数据和该数据的产品，因此可以计算30多年来以1分钟为节奏的连续极光功率。OVATION‐SM捕捉极光的总体形态，包括开始和其他亮暗事件。详细的空间极光形态超出了OVATION‐SM当前版本的范围。OVATION‐SM解释了极地紫外成像仪夜间极光功率变化的70%以上，这使得它比目前可用的任何其他模型都能更好地预测夜间极光功率。
OVATION‐SM, an empirical model for different types of auroral energy flux, has been developed. OVATION‐SM is a linear combination of the SME index (or square root of SME index for monoenergetic auroras), time since the last substorm onset, and time until the next substorm onset. Because OVATION‐SM is based on ground magnetometer data and products of that data, it is possible to calculate continuous auroral power at a 1 min cadence for 30+ years. OVATION‐SM captures the gross auroral morphology, including onsets and other brightening and dimming events. The detailed spatial auroral morphology is beyond the scope of the current version of OVATION‐SM. OVATION‐SM explains more than 70% of the variance in Polar UV Imager nightside auroral power, which makes it a better predictor of nightside auroral power than any other model currently available.