Key Points
  1. The Lightning Imaging Sensor (LIS) has been providing data from the International Space Station (ISS) since March 2017.
  2. ISS LIS provides storm-scale resolution (4-km) and millisecond timing of global lightning with spatially uniform detection efficiency (~60%).
  3. The 3-year global lightning climatology is consistent with previous studies (within 5-10%), while extending results to higher latitudes.