DOI: 10.5281/zenodo.14648227
title: Dataset of Trans-Ionospheric Pulse Pairs identified by RFS and matched to GLD360/NLDN

description: This dataset contains information about the location, time, and characteristics of Trans-Ionospheric Pulse Pairs (TIPPs) detected by the Radio Frequency Sensor (RFS) and matched to lightning geolocated by the Global Lightning Detection Network (GLD360) and the National Lightning Detection Network (NLDN). The dataset is formatted in two CSV files, one for the TIPPs matched to lightning strokes from GLD360, and another for TIPPs matched to NLDN. The GLD360 CSV file contains the following column headers: “date”, an integer value for the date of the TIPP in format YYYYMMDD; “time”, the time of the event in UTC in format HH:MM:SS.ms; “lat”, the latitude of the lightning stroke believed to cause the TIPP; “lon”, the longitude of the stroke; “amp_ratio”, the calculated amplitude ratio of the pair of pulses in the TIPP, defined as the amplitude of the second pulse divided by the amplitude of the first; “elevation_angle”, the angle of the line of sight from the lightning stroke to RFS and the line to horizon; “height”, the altitude in meters of the lightning stroke estimated by the pulse separation and the geometry of the lightning stroke and RFS; and ”seawater”, a flag that is 1 if the lightning stroke is over seawater and 0 otherwise. The NLDN CSV file contains all of these columns, as well as an additional column with header “peak_current_ka”, showing the peak current as identified by NLDN in kA. The GLD360 CSV file has 76,348 rows of data in addition to the header, and the NLDN CSV file has 3039 rows of data in addition to the header.

 

The following are the first few lines of the GLD csv file, formatted as a table:






date



time



lat



lon



amp_ratio



elevation_angle



height



seawater





20230130



00:44.9



-21.6456



-133.5521



1.6294210018164705



54.555523985376695



11989.263322755147



1





20230130



01:23.8



-21.8703



-57.7072



0.7161612511761402



25.262493008013337



12281.589056357543



0





20230130



01:31.1



-21.1522



-130.4267



1.4713751869520337



57.32619104666685



11323.249443359893



1





20230130



01:49.9



-21.0458



-67.3948



0.8685619586317014



34.83982462293637



8572.855591644306



0




 
 
 
 
 
 
 
 
 




 

The following are the first few lines of the NLDN CSV file, formatted as a table:






date



time



lat



lon



amp_ratio



elevation_angle



height



seawater



peak_current_ka





20230610



40:37.6



26.2289



-79.2476



1.3884252299228965



42.88343153074524



11121.371746885598



1



31





20230610



06:58.9



30.0977



-77.2882



1.0925501269927418



38.82741512120007



6676.31691



1



22





20230610



22:16.6



20.0743



-77.9462



1.2123299680528041



45.285880494435226



14728.892822447133



1



71





20230610



23:39.6



26.152



-77.97



1.2654190758450512



41.875457645952196



8816.359011291886



1



26





20230610



39:22.6



21.6937



-81.0108



1.6896604827304882



47.18951081763928



11662.531689479087



1



61





This data has been made available for the public with LA-UR-25-20343