Lightning Mapping Arrays: Technical Status and Developments

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● Decimated data or full data? ● Number of active LMA stations – Significant reduction in number of located sources with fewer than eight active stations ● VHF frequency used ● Local noise threshold ● Proximity to array center Interpretation of Source Density ● WSMR LMA most sensitive system ● DC LMA least sensitive system
Volcanic <strong>Lightning</strong> Augustine Volcano Nov. 4., 2006 Photo by Jennifer Adleman, courtesy of AVO/USGS
Page 1: Lightning Mapping Arrays: Technical
Page 4 and 5: Height vs. N-S Example of a highly
Page 6 and 7: VHF Time-Of-Arrival (TOA) Total Lig
Page 8 and 9: VHF Frequency Spectrum LMA stations
Page 10 and 11: Oklahoma LMA ● Eleven-station net
Page 12 and 13: Oklahoma LMA ● For 11 station net
Page 14 and 15: VHF Time-Of-Arrival (TOA) Total Lig
Page 18 and 19: Portable LMA Stations • Electroni
Page 20 and 21: Received signal at Homer during the
Page 22 and 23: 700 ms horizontally extensive light
Page 24 and 25: Three Types of Electrical Discharge
Page 26 and 27: March 28, 2009 eruption ● ~30 min
Page 29 and 30: Comparison of NEXRAD and Lightning
Page 31 and 32: DC Lightning Mapping Array ● Expe
Page 33 and 34: Bolt from the Blue Discharge © Har
Page 35 and 36: Sept 8, 2006
Page 37 and 38: DC LMA diagnostic webpage Data inge
Page 39 and 40: April 4, 2007 ● 10 min time inter
Page 41 and 42: Intracloud Discharge (+) (--) ● B
Page 43 and 44: Low IC Discharges ● Between negat
Page 45: May 13, 2007 ● Active lower (+) r
Page 49 and 50: AWIPS Display, NWS Forecast Office,
Page 51 and 52: Total Lightning Observations
Page 53 and 54: May 27, 2007
Page 55 and 56: February 22, 2007 Winter storm, low
Page 57 and 58: REFERENCE: Thomas, R.J., P.R. Krehb
Page 59 and 60: WSMR - Aircraft sparking observatio
Page 61 and 62: Total Lightning Observations ● Cl
Page 63 and 64: Tornadic Storm, June 29, STEPS 2000
Page 65 and 66: DC LMA Stations (Urban Network) How
Page 67:
DC LMA diagnostic web table Decembe
Page 72:
5 min intvl
Page 76 and 77:
Oklahoma Lightning Mapping Array (U
Page 78 and 79:
Concluding Remarks ● Very helpful
Page 80:
Cloud-t o-Ground Light ning
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Lightning Mapping Arrays: Technical Status and Developments

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