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North Alabama Lightning Mapping Array (NALMA) Data



This data set contains source-level and flash-level data from the North Alabama Lightning Mapping Array (NALMA) during the Intensive Observing Periods (IOPs) of the VORTEX-SE 2016 campaign. The data are in gzipped tar files by IOP which contain columnar ASCII data files.

Data access

  • ORDER data for delivery by FTP

Additional information

Data Quality final
  • 1.0 (2016-11-01):

    This release contains the quality-controlled data for all VORTEX-SE IOPs except for IOP7 (1 May). For IOP7, only the decimated VHF source data are included.

  • 1.1 (2017-12-15):

    This version includes additional source-level and flash-processed data from the mobile LMA (Lightning Mapping Array) sensors for every VORTEX-SE 2016 IOP.

(Only the current version of the data is available to order. If you have questions about a prior version, please email us.)
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Related projects
Spatial Type point
Frequency < 1 second
Language English
GCMD Science Keywords Expand keywords
Related links

Temporal coverage

Begin datetime 2016-02-23 00:00:00
End datetime 2016-05-01 23:59:59

Spatial coverage

Map data from IBCSO, IBCAO, and Global Topography.

Maximum (North) Latitude: 39.00, Minimum (South) Latitude: 31.00
Minimum (West) Longitude: -92.00, Maximum (East) Longitude: -81.00

Primary point of contact information

EOL Data Support <>

Additional contact information


Carey, L., Stough, S. 2017. North Alabama Lightning Mapping Array (NALMA) Data. Version 1.1. UCAR/NCAR - Earth Observing Laboratory. Accessed 23 Jun 2024.

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Ancillary information

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