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Confirmation of NLDN Long Range Strike Locations with LIS ObservationsThis study compares the lightning locations reported by the National Lightning Detection Network (NLDN) with the lightning locations determined by the Lightning Imaging Sensor (LIS). The NLDN system identifies the rf signature of cloud-to-ground lightning. The LIS data is the top level of a hierarchy of optical data objects. The centroid and timing of each LIS lightning activity center are compared with each flash in a subset of the NLDN long range lightning location data in a portion of the Atlantic Ocean and the Caribbean Sea consisting of those locations more than 625 km from any sensor. This subset is produced by analyzing each reported NLDN location to determine if that location is within the LIS field of view at the time of the reported flash. The Tropical Rainfall Measuring Mission Satellite (TRMM) orbit limits the cross-sensor comparison to tropical and sub-tropical regions. Because the rf-detection system depends on ionospheric propagation conditions, a separate analysis was made for daylight conditions at both source and sensor as well as nighttime at both places. A full year of data is compared to provide an adequate sample of each data set. Confirmation of lightning in the general location of the NLDN report is established when LIS detected one or more centers of lightning activity within a 2 degree radius from the NLDN location.
Document ID
20010020216
Acquisition Source
Marshall Space Flight Center
Document Type
Preprint (Draft being sent to journal)
Authors
Boeck, William
(Niagara Univ. New York, NY United States)
Boccippio, Dennis
(NASA Marshall Space Flight Center Huntsville, AL United States)
Goodman, Steve
(NASA Marshall Space Flight Center Huntsville, AL United States)
Cummins, Kenneth
(Global Atmospherics, Inc. United States)
Cramer, John
(Global Atmospherics, Inc. United States)
Goodman, H. Michael
Date Acquired
August 20, 2013
Publication Date
January 1, 2000
Subject Category
Meteorology And Climatology
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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