GLD360 V4 update

The V4 re-analyses the data collected by the network and corrects the propagation time of the electromagnetic wave for each sensor.

This update reanalyzes the data collected by the network and corrects the propagation time of the electromagnetic wave for each sensor. An algorithm processes the direct ground wave and the first ionospheric reflection received by the sensors to calculate correction parameters.

This process takes into account the direction of the signal propagation and the day/night variation in the altitude of the ionosphere, then the corrections are applied to the real time data feed.

This process allows for a more precise localisation of cloud-to-ground flashes (CGs), a better grouping of flashes belonging to the same storm cell and a 10% more efficient detection of CGs.

The values provided by the GLD360 network monitoring officials confirm that overall performance is thus significantly improved.