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RSS FeedsRemote Sensing, Vol. 14, Pages 560: Preliminary Application of Long-Range Lightning Location Network with Equivalent Propagation Velocity in China (Remote Sensing)

 
 

25 january 2022 11:50:42

 
Remote Sensing, Vol. 14, Pages 560: Preliminary Application of Long-Range Lightning Location Network with Equivalent Propagation Velocity in China (Remote Sensing)
 


The equivalent propagation method adopts a variable propagation velocity in lightning location, minimizing the location error caused by various factors in the long-range lightning location network. To verify the feasibility of this method, we establish a long-range lightning location network in China. A new method is used to extract the ground wave peak points of the lightning sferics and is combined with the equivalent propagation velocity method for lightning location. By comparing with the lightning data detected by the lightning locating system called advanced direction and time-of-arrival detecting (ADTD) that has been widely used for tens of years in China, the feasibility of this method is initially verified. Additionally, it is found that the relative detection efficiency of our long-range lightning location network can reach 53%, the average location error is 9.17 km, and the detection range can reach more than 3000 km. The equivalent propagation method can improve the average location accuracy by ~1.16 km, compared with the assumed light speed of lightning-radiated sferic from the lightning stroke point to the observation station. The 50th percentile of the equal propagation velocity is 0.998c, which may be used in the long-range lightning location networks.


 
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