Lightning strike at night

Comparison & characterisation of ATDnet versus LIS

Lightning strike at night
Lightning strike at night

This study evaluated the performance of the UK Met Office lightning location system ATDnet against the Tropical Rainfall Measuring Mission (TRMM) Lightning Imaging Sensor (LIS) for the period 2008 to 2014.

Last Updated

31 March 2021

Published on

26 March 2021

The detection efficiency (DE) of the Met Office long-range Very Low Frequency lightning location system ATDnet was evaluated against the Tropical Rainfall Measuring Mission Lightning Imaging Sensor (LIS) during 2008-2014, within the LIS data domain (38°N-38°S; 180°W-180°E).

ATDnet detected 20-30% of LIS flashes over the Mediterranean and the east Atlantic, 10-15% of LIS flashes over the west Atlantic and 5-10% in northern and western Africa. ATDnet DE was notably higher over salty water compared to land. The average number of ATDnet strokes/pulses per detected LIS flash was 1.23 and 15% of the detected LIS flashes had more than one ATDnet observation. ATDnet detected stronger LIS flashes more efficiently, with a high number of events per group and large area.

Full fetails can be found in the Final Report below