Data Presented in Positive Corona Inception from Charged Ellipsoidal Thundercloud Hydrometeors

This dataset contains all data presented in the manuscript "A Model for Positive Corona Inception from Charged Ellipsoidal Thundercloud Hydrometeors" by S.A. Peeters et al. (under review, open access at https://www.essoar.org/doi/10.1002/essoar.10507503.1). The data is indicated by figure names corresponding to the figures of this manuscript. The goal of this study is to investigate the conditions for the onset of a positive corona discharge in air for ellipsoidal hydrometeors. This is done for different pressures (relative gas density delta in the dataset) and aspect ratios of the ellipsoids. By doing so, the feasibility of corona inception from ellipsoidal hydrometeors can be formulated based on the self-sustaining condition of electron avalanches. From the theoretical expressions formulated around this condition, the equation defining this condition can be solved in Matlab. The data presented is the numerical output (electric field, voltage, surface charge, and ionization integral values) of the Matlab scripts, which are attached as supporting information to the study. The data used to determine the breakdown field is also included. The data, which consists of ionization and attachment coefficients, was obtained from the BOLSIG+ and Phelps databases.

本数据集包含S.A. Peeters等人撰写的待审稿手稿《带电椭球形雷暴水凝物的正电晕起始模型》（开放获取链接：https://www.essoar.org/doi/10.1002/essoar.10507503.1）中的全部数据。本数据集以对应手稿插图的图名作为数据标识。本研究旨在探究椭球形水凝物在空气中产生正电晕放电的起始条件，针对不同气压（对应数据集中的相对气体密度δ）与椭球轴比开展相关分析。研究基于电子雪崩自持条件，推导椭球形水凝物的电晕起始可行性判据；围绕该条件构建的理论表达式，可通过Matlab求解该判据方程。本数据集提供配套Matlab脚本的数值计算结果，包括电场、电压、表面电荷与电离积分值，该脚本已作为本研究的补充材料随附。本数据集同时包含用于确定击穿场强的相关数据。用于计算电离系数与附着系数的数据取自BOLSIG+与Phelps数据库。