The data of the article"Analysis of Physical Characteristics of Lightning Return Stroke Channels During Radial Expansion"

This dataset mainly includes the raw images and related computational data of the two lightning events used in the article. Each image simultaneously records the zero level spectrum and first level spectrum of lightning, with a resolution of 896 × 512 and a bit depth of 16 bits. This dataset is divided into the following five files, among which file 1 mainly contains three images of lightning A in the text: the frame before the counterattack ("a1). tif"), the first frame after the counterattack ("a2). tif"), the second frame after the counterattack ("a3). tif"), and the three images of lightning B: the frame before the counterattack ("b1). tif"), the first frame after the counterattack ("b2. tif"), and the second frame after the counterattack ("b3). tif"; File 2 mainly contains the spectral intensity data of lightning A and B at a certain height, as shown in Figure 2 of this article; File 3 mainly contains the visible diameter data of lightning A and B, as shown in Figure 3 of this article; File 4 mainly contains the data of the core temperature and electron density of the first frame channel of lightning A and B as a function of channel height, which is shown in Figure 4 of this article; File 5 contains the data on the core temperature and electron density of the second frame channel of lightning A and B as a function of channel height, as shown in Figure 5 of this article; File 6 contains data on the temperature and electron density of the corona sheath in the first frame of lightning A and B channels as a function of channel height, as shown in Figure 6 of this article; File 7 contains data on the temperature and electron density of the corona sheath in the second frame of lightning A and B channels as a function of channel height, as shown in Figure 7 of this article.

本数据集主要包含本文所使用的两次雷电事件的原始图像及相关计算数据。每张图像同时记录了雷电的零级光谱与一级光谱，分辨率为896×512，位深度为16比特。本数据集分为以下七个文件：文件1主要包含正文中雷电A的三帧图像：回击前帧（a1.tif）、回击后第一帧（a2.tif）、回击后第二帧（a3.tif），以及雷电B的三帧图像：回击前帧（b1.tif）、回击后第一帧（b2.tif）、回击后第二帧（b3.tif）；文件2主要包含雷电A与B在某一高度处的光谱强度数据，对应本文图2；文件3主要包含雷电A与B的可见直径数据，对应本文图3；文件4主要包含雷电A与B第一帧通道的核心温度及电子密度随通道高度的变化数据，对应本文图4；文件5主要包含雷电A与B第二帧通道的核心温度及电子密度随通道高度的变化数据，对应本文图5；文件6包含雷电A与B第一帧通道的电晕鞘层温度及电子密度随通道高度的变化数据，对应本文图6；文件7包含雷电A与B第二帧通道的电晕鞘层温度及电子密度随通道高度的变化数据，对应本文图7。