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# GLM Flashes

Desired Future Application. # GLM Flashes. Ground Flash Fraction Retrieval Algorithm (see Koshak talk tomorrow). Vital link. # GLM Ground Flashes. # GLM Cloud Flashes. MSFC LNOM (lightning NOx ). Air Quality Models (e.g. CMAQ) Global Chemistry/Climate Models

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# GLM Flashes

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  1. Desired Future Application # GLM Flashes Ground Flash Fraction Retrieval Algorithm (see Koshak talk tomorrow) Vital link # GLM Ground Flashes # GLM Cloud Flashes MSFC LNOM (lightning NOx) Air Quality Models (e.g. CMAQ) Global Chemistry/Climate Models (e.g. GISS Model E, GeosChem)

  2. CMAQ Domain • GLM will provide • continuous total • lightning across • much of CMAQ • domain (GOES-E • park). • Colors are Z ratio • for Aug 2006 • (based on Boccippio et al. 2001)

  3. Sample LNOM Channel Construction

  4. LNOM NOx Profiles • Based on Wang Lab results only • Cooray nonreturn stroke processes to come! • Icld = 15 kA • All Flashes: • 2.34 moles/km • (1.41x1017 NO/J) • Ground Flashes: • 9.79 moles/km • (3.72 moles/km)* • Cloud Flashes: • 0.37 moles/km *When subsequent stroke peak current is ½ previous stroke’s peak.

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