Comparison of ground‐based 3‐dimensional lightning mapping observations with satellite‐based LIS observations in Oklahoma
Comparison of ground‐based 3‐dimensional lightning mapping observations with satellite‐based LIS observations in Oklahoma
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DOI：
10.1029/1999gl010845
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发表时间：
2000-06
影响因子：
5.2
通讯作者：
R. Thomas;P. Krehbiel;W. Rison;T. Hamlin;D. Boccippio;S. Goodman;H. Christian
中科院分区：
文献类型：
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作者：
R. Thomas;P. Krehbiel;W. Rison;T. Hamlin;D. Boccippio;S. Goodman;H. Christian
新墨西哥州科技闪电测绘阵列（LMA）在俄克拉荷马州中部获得的三维闪电测绘观测结果与美国宇航局闪电成像传感器（LIS）获得的空间放电光学观测结果进行了比较。在两组观测之间获得了良好的空间和时间相关性。LIS所看到的所有闪电放电都是由LMA绘制的。大多数检测到的光学事件与延伸到风暴上部的闪电通道有关。局限于中海拔和低海拔的云对地放电比云内放电检测得更少，并且往往在放电后期检测到。云内放电一旦延伸到风暴的上部，就很容易被LIS检测到，并且通常在放电的末端或部分区域广泛照亮云。广泛的照明本质上是脉冲的，也可以在一些云对地放电结束时看到。
3‐dimensional lightning mapping observations obtained in central Oklahoma by the New Mexico Tech Lightning Mapping Array (LMA) have been compared with optical observations of the discharges from space obtained by NASA's Lightning Imaging Sensor (LIS). Excellent spatial and temporal correlations were obtained between the two sets of observations. All lightning discharges seen by LIS were mapped by the LMA. Most of the detected optical events were associated with lightning channels that extended into the upper part of the storm. Cloud‐to‐ground discharges that were confined to mid‐ and lower‐altitudes were less well detected than intracloud discharges, and tended to be detected late in the discharge. Intracloud discharges were readily detected by LIS as soon as they extended into the upper part of the storm, and often extensively illuminated the cloud at the end or part way through the discharge. The extensive illumination was impulsive in nature and was also seen at the end of some cloud‐to‐ground discharges.