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Atmospheric Measurement Techniques An interactive open-access journal of the European Geosciences Union
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https://doi.org/10.5194/amt-2019-435
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-2019-435
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Submitted as: research article 23 Jan 2020

Submitted as: research article | 23 Jan 2020

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This preprint is currently under review for the journal AMT.

Comparing lightning observations of the ground-based EUCLID network and the space-based ISS-LIS

Dieter R. Poelman1 and Wolfgang Schulz2 Dieter R. Poelman and Wolfgang Schulz
  • 1Royal Meteorological Institute of Belgium, Brussels, Belgium
  • 2OVE-ALDIS, Vienna, Austria

Abstract. The Lightning Imaging Sensor (LIS) on the International Space Station (ISS) detects lightning from space by capturing the optical scattered light emitted from the top of the clouds. On the other hand, the ground-based European Cooperation for Lightning Detection (EUCLID) makes use of the low-frequency electromagnetic signals generated by lightning discharges to locate those accordingly. The objective of this work is to quantify the similarities and contrasts between the latter two distinct lightning detection technologies by comparing the EUCLID cloud-to-ground strokes and intracloud pulses to the ISS-LIS groups, in addition to the correlation at the flash level. The analysis is based on the observations made during March 01, 2017 and March 31, 2019 within the EUCLID network and limited to 54° north. A Bayesian approach is adopted to determine the relative and absolute detection efficiencies (DE) of each system. It is found that the EUCLID relative and absolute flash DE improves by approximately 10 % towards the center of the EUCLID network up to a value of 50.3 % and 69.4 %, respectively, compared to the averaged value over the full domain, inherent to the network geometry and sensor technology. On the other hand, the relative and absolute ISS-LIS flash DE over the full domain is 49 % and 68.9 %, respectively, and is somewhat higher than the values obtained in the centre of the EUCLID network. The behavior of the relative DE of each system in terms of the flash characteristics of the other reveals that the greater the value the more likely the other system detects the flash. For instance, when the ISS-LIS flash duration is smaller or equal to 200 ms, the EUCLID relative flash DE drops below 50 %, whereas this increases up to 80 % for ISS-LIS flashes with a duration longer than 750 ms. Finally, the distribution of the diurnal DE indicates higher (lower) ISS-LIS (EUCLID) DE at night, related to an increased ISS-LIS:EUCLID flash ratio at night.

Dieter R. Poelman and Wolfgang Schulz

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Status: open (until 19 Mar 2020)
Status: open (until 19 Mar 2020)
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Dieter R. Poelman and Wolfgang Schulz

Dieter R. Poelman and Wolfgang Schulz

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Latest update: 17 Feb 2020
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Short summary
The objective of this work is to quantify the similarities and contrasts between the lightning observations from the Lightning Imaging Sensor (LIS) on the International Space Station (ISS) and the ground-based European Cooperation for Lightning Detection (EUCLID) network. This work is timely, given that the Meteosat Third Generation (MTG), which has a lightning imager (LI) on board, is going to be launched in 2 years.
The objective of this work is to quantify the similarities and contrasts between the lightning...
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