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Microsferics Time of Difference of Arrival Display - Near Realtime Interactive Interface

Key to Strike Type: strikeNew Strike + Positive CG  x Negative CG o In-Cloud

TOdA 6 hour Lightning Animation Sequence

strikeAnimated 4hr Lightning GIF for Download

European TOdA 24hr Lightning Distribution


TOdA Europe Coverage

Microsferics Time of Difference of Arrival Display

The TOdA (Time Of difference of Arrival) system is a network based lightning triangulation method employing multiple volunteer detection sites across Europe and soon to include North America. It provides high accuracy detection which augments the participating stations existing lightning detection systems. Headcorn Weather is part of this project and supplies data to the TOdA network.

The technology utilises the highly stable and immensly accurate GPS timestamp to tag each potential lightning strike which is then mathematically analysed and passed along to a central server where it is subject to further analysis and matching with other detection signatures from alternate stations. When 4 or more stations confirm the same strike it is recorded along with its type (+/- CG or IC) and made available for display, in the above case on a composite vector map with frequent updates.

Theoretical accuracy is dependant on the number of stations detecting the strike and the geometry of those stations in relation to the strike itself, however in theory this is between a few Kilometres down to just a few hundred metres which is quite impressive.

Our display software is in beta with frequent updates. Acknowledgements to Andy Jones-McGuire for the software development work on this and to Microsferics for the hardware/firmware development and server hosting.  


Click HERE for Lightning Statistics from Headcorn Weather

Astrogenic Systems NexStorm Online

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