闪电通道

用多谱线法计算闪电通道等离子体温度

Multiple-line method used to calculate lightning channel temperature

结果又指出：非经典式直窜先导电场变化波形，即平缓变化波形与闪电通道的分岔结构有关，即与通道附近云中电荷分布不均匀性有关。

The results also show that the electric field change wave of the Non-standard dart-leader namely even change wave depend on the branches structure of the lightning channel namely non-uniformity of the charge distribution close by the lightning channel .

通过对比放电参数化方案中两种不同的通道扩展方案所得出的三维闪电通道，发现：本模式中使用Pos和Ran两种参数化方案均能模拟出拥有双向先导和分叉结构的闪电通道。

In contrast with three-dimensional lightning channel expansion results of two different channel expansion schemes in discharge parameterization , it was found that both the " Pos " and " Ran " schemes present the bidirectional leaders and the forked structure of the lightning channels .

利用成像率为1000幅／秒的高速数字化摄像系统在380m的极近距离对人工触发闪电通道的发光特征进行了观测和研究。

The luminous characteristics of the channel of artificially triggered lightning flashes were studied by use of digital photographic data obtained with a high-speed CCD camera system ( frame rate 1 000F / s ) at very close range to the lightning .

用宽带干涉仪观测云内闪电通道双向传输的特征

Broadband interferometer observations of the bi-directional breakdown process in natural lightning

人工触发闪电通道的发光特征

The characteristics of the channel luminosity of triggered lightning flashes

闪电通道垂直假定引起回击辐射场峰值计算误差分析

Analysis of Calculated Return-Stroke Radiation Field Peak Errors Induced by Vertical-Path Assumption

结果表明，闪电通道的发光截面基本上呈对称型。

The results showed that the transversal distribution of channel luminosity was essentially symmetric .

闪电通道的径向扩展

Radial expansion of lightning channels

一次雷击的主闪电通道——携带电流的那一部分——的直径约为1厘米。

The main channel of a lightning bolt-the part that 's carrying current-is about a centimeter or two in diameter .

因此，在利用谱线相对强度进行闪电通道温度研究时，运用多谱线法是最佳的选择。

So the result shows that multiple-line method is better than double-line method in studying temperature in lightning return stroke channel .

这两种击穿过程均产生较强的辐射，且辐射频谱特征十分相似，表明云内闪电通道两端发生的击穿过程可能均为负击穿过程。

Radiation field spectra of the two concurrent breakdown processes are quite similar , indicating that the processes may be negative breakdown and may be caused by the same mechanisms .

但由于子弹的飞行速度太快，它在离开闪电通道的时候自身仅被加热了几摄氏度，子弹会几乎不受任何影响地继续飞向目标。

But since it would be moving along so quickly , it would exit thechannel before it could be warmed by more than a few degrees . It would continueon to its target relatively unaffected .

本文从流体力学欧拉运动方程、连续方程和能量守恒方程出发，理论分析闪电通道的径向扩展，研究闪电冲击波的形成机制。

Radial expansion of lightning channels are analysed theoretically and the mechanism of the formation of shock waves of lightning is discussed by applying the equation of motion , the equation of continuity and the equation of energy conservation of hydrostatics .

证实了高分辨率模拟的闪电通道空间形态特征与观测结果有更好的一致性，对于深入研究闪电放电与云内电环境相互关系而言、高分辨率放电模拟是必要的。

Some new results from the simulations are as follows : 1 Proved that the lightning channel structures from fine resolution simulation within 2D domain are consistent with observation data and it is necessary for research of lightning physics to perform fine resolution simulation .

闪电回击通道的电子密度研究

Study on Electron Density of Lightning Return Stroke

闪电放电通道的三维结构特征

Three Dimensions Structure of Lightning Discharge Channel

闪电电流与其通道的相对光强有很好的正相关。

There was positive correlation between lightning current and relative light intensity .

在自然闪电时，闪电通道中能量的瞬间释放造成闪电冲击波。

Lightning causes the burst of shock wave because of instantaneous release of energy in the canal .

为闪电光谱进一步的定量分析，尤其是对闪电放电通道的导电特性、辐射特性及通道结构的研究和有关的理论计算提供了参考数据。

The results provide reference data for further lightning spectra quantitative analysis , especially for the conductivity , radiation characteristic of lightning discharge channel and the structure of channel .

利用闪电宽带干涉仪系统对闪电的观测表明，地闪和云闪的云内闪电通道都存在双向发展的特征。

The bi-directional propagations of a lightning channel within clouds have been observed for both the cloud-to-ground and cloud discharges by use of a lightning broadband interferometer system .