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-  2017 

高功率微波注入平流层对臭氧的影响 Effect of High Power Microwave Injection on Stratospheric Layer

Keywords: 高功率微波,电子,臭氧,时域有限差分法

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Abstract:

高功率微波注入大气层形成人工电离区是一种可以促进臭氧生成的方法.然而,很少有研究对其进行定量分析.本文采用时域有限差分法对高功率微波大气传播模型进行差分离散,结合电子促进臭氧生成的相关化学反应,对平流层不同高度(20~50km)的电子、O、O_2、O_3等粒子在微波作用下的变化情况进行了模拟与定量分析.结果显示:在高功率微波作用下,电子数密度在大气击穿前增加到最大值;大气击穿难度随着高度(20~35km)的增加逐渐减小;在30和35km处,显著增加的电子可以促进臭氧数密度增大3个数量级且能够维持约400s

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