Global optical lightning flash rates determined with the Forte satellite

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Using FORTE photodiode detector (PDD) observations of lightning, we have determined the geographic distribution of nighttime flash rate density. We estimate the PDD flash detection efficiency to be 62% for total lightning through comparison to lightning observations by the TRMM satellite's Lightning Imaging Sensor (LIS), using cases in which FORTE and TRMM viewed the same storm. We present here both seasonal and l,ot,al flash rate maps. We examine some characteristics of the optical emissions of lightning in both high and low flash rate environments, and find that while lightning occurs less frequently over ocean, oceanic lightning flashes are somewhat more ... continued below

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4 p.

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Light, T. (Tracy E.); Davis, S. M. (Sean M.); Boeck, W. L. (William L.); Jacobson, A. R. & Suszcynsky, D. M. (David M.) January 1, 2003.

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Description

Using FORTE photodiode detector (PDD) observations of lightning, we have determined the geographic distribution of nighttime flash rate density. We estimate the PDD flash detection efficiency to be 62% for total lightning through comparison to lightning observations by the TRMM satellite's Lightning Imaging Sensor (LIS), using cases in which FORTE and TRMM viewed the same storm. We present here both seasonal and l,ot,al flash rate maps. We examine some characteristics of the optical emissions of lightning in both high and low flash rate environments, and find that while lightning occurs less frequently over ocean, oceanic lightning flashes are somewhat more powerful, on average, than those over land.

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4 p.

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  • Submitted to: International Conference on Atmospheric Electricity, Versailes, France

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  • Report No.: LA-UR-03-2614
  • Grant Number: none
  • Office of Scientific & Technical Information Report Number: 976609
  • Archival Resource Key: ark:/67531/metadc934831

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Office of Scientific & Technical Information Technical Reports

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  • January 1, 2003

Added to The UNT Digital Library

  • Nov. 13, 2016, 7:26 p.m.

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  • Dec. 9, 2016, 11:38 p.m.

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Light, T. (Tracy E.); Davis, S. M. (Sean M.); Boeck, W. L. (William L.); Jacobson, A. R. & Suszcynsky, D. M. (David M.). Global optical lightning flash rates determined with the Forte satellite, article, January 1, 2003; United States. (digital.library.unt.edu/ark:/67531/metadc934831/: accessed October 21, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.