Long‐term expansion characteristics of CRRES barium release clouds
Long‐term expansion characteristics of CRRES barium release clouds
复制标题
CRRES钡释放云的长期膨胀特征
DOI：
10.1029/93gl00804
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发表时间：
1993
期刊：
影响因子：
--
通讯作者：
D. Hunton
中科院分区：
文献类型：
--
作者：
D. Hunton
描述了一种计算CRRES低空化学物质释放后卫星位置上的钡离子数密度的直接方法。这一计算是基于中性钡云的现象学模型，该模型被认为是无碰撞膨胀的伽马斯壳。离子密度是通过将从航天器位置向前延伸到速度矢量并穿过中性云的直线上的光电离率积分得到的。将模型预测结果与现场质谱仪数据进行了比较，结果表明两者吻合较好。参考文献16，图3。
A straightforward approach to calculating number densities of barium ions at the satellite position following CRRES low altitude chemical releases is described. The calculation is based on a phenomenological model of the neutral barium cloud which is taken to expand collisionlessly as a guassian shell. Ion densities are derived by integrating the photoionization rate along a line extending from the spacecraft position forward into the velocity vector and going through the neutral cloud. Model predictions are compared with in-situ mass spectrometer data, and shown to be in reasonable agreement. 16 refs., 3 figs.