Abstract. Energetic particle precipitation associated with pulsating aurora (PsA) can reach down to lower mesospheric altitude and deplete ozone. It is well documented that pulsating aurora is a common phenomenon during substorm recovery phases. This indicates that using magnetic indices to model the chemistry induced by PsA electrons could underestimate the energy deposition in the atmosphere. Integrating satellite measurements of precipitating electrons in models is considered to be an alternative way to account for such underestimation. One way to do this is to test and validate existing ion chemistry models using integrated measurements from satellite and ground-based observations. By using satellite measurements, an average/typical spectrum of PsA electrons can be constructed and used as an input in models to study the effects of the energetic electrons in the atmosphere. In this study, we compare electron densities from EISCAT radars with auroral ion chemistry and the energetics model by using pulsating aurora spectra derived from POES satellites as an energy input for the model. We found a good agreement between the model and EISCAT electron densities in the region dominated by patchy pulsating aurora. However, the magnitude of the observed electron densities suggests a significant difference in the flux of precipitating electrons for different pulsating aurora types (structures) observed.

中文翻译：

---

脉动极光的类型：模型和EISCAT电子密度观测值的比较

摘要。与脉动极光（PsA）相关的高能粒子沉淀可能会下降到较低的中层高度并消耗臭氧。有充分的记录表明，在亚暴恢复阶段，脉动极光是一种普遍现象。这表明使用磁指数来模拟PsA电子诱导的化学反应可能会低估大气中的能量沉积。将降水电子的卫星测量结果集成到模型中被认为是解决此类低估问题的另一种方法。一种方法是使用来自卫星和地面观测的综合测量值测试和验证现有的离子化学模型。通过使用卫星测量，可以构造PsA电子的平均/典型光谱，并将其用作模型中的输入，以研究大气中高能电子的影响。在这项研究中，我们通过使用从POES卫星获得的脉冲极光光谱作为模型的能量输入，将EISCAT雷达的电子密度与极光离子化学和高能模型进行了比较。我们在斑片脉动极光主导的区域中，该模型与EISCAT电子密度之间找到了很好的一致性。但是，观察到的电子密度的大小表明，对于观察到的不同脉动极光类型（结构），沉淀电子的通量存在显着差异。我们使用来自POES卫星的脉冲极光光谱作为模型的能量输入，将EISCAT雷达的电子密度与极光离子化学和高能模型进行比较。我们在斑片脉动极光主导的区域中，该模型与EISCAT电子密度之间找到了很好的一致性。但是，观察到的电子密度的大小表明，对于观察到的不同脉动极光类型（结构），沉淀电子的通量存在显着差异。我们使用来自POES卫星的脉冲极光光谱作为模型的能量输入，将EISCAT雷达的电子密度与极光离子化学和高能模型进行比较。我们在斑片脉动极光主导的区域中，该模型与EISCAT电子密度之间找到了很好的一致性。但是，观察到的电子密度的大小表明，对于观察到的不同脉动极光类型（结构），沉淀电子的通量存在显着差异。