Dataset Identification:
Resource Abstract:
- The NASA Marshall Space Flight Center Lightning Nitrogen Oxides Model (LNOM) combines detailed, flash-specific measurements
of lightning with both theoretical and empirical laboratory results to obtain estimates of lightning NOx production. Each
LNOM dataset is based on measurements from a specific regional VHF Lightning Mapping Array (LMA), and on ground flash location,
peak current, and stroke multiplicity data from the National Lightning Detection Network (NLDN). Both the LMA and NLDN data
are used to determine the flash type (ground or cloud) of each flash occurring within an analysis cylinder. The LNOM analyzes
the LMA sources to estimate the total channel length of each flash. It also produces the Segment Altitude Distribution (SAD)
product by dicing up the lightning channel into 10-m segments, and then tallies those segments as a function of altitude.
From all of the 10-m segments, the LNOM computes the vertical lightning NOx profile inside the analysis cylinder and the total
NOx produced by each flash. A summation of the NOx profiles contributed to the analysis cylinder by each flash gives the final
lightning NOx profile product for the analysis period studied (typically a 1 month profile). The LNOM NOx profiles include
NOx from several non-return stroke lightning NOx production mechanisms. Users of LNOM data typically include regional air
quality and global chemistry/climate modelers who need to better-parameterize lightning NOx sources. Rather than assigning
an unrealistic fixed amount of NOx to ground and cloud flashes, the modeler can employ LNOM data to assign realistic (and
statistical) NOx profiles to each flash.
Citation
- Title NASA MSFC LIGHTNING NITROGEN OXIDES MODEL (LNOM) DATA FOR DC METROPOLITAN REGION V1
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- revision Date
2012-01-27T13:48:58.000Z
Theme keywords (theme):
EARTH SCIENCE
ATMOSPHERE
ATMOSPHERIC ELECTRICITY
ATMOSPHERIC PHENOMENA
Resource language:
[u'en-US']
Constraints on resource usage:
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- Constraints
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- Use limitation statement:
- public
point of contact
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publisher
- individual Name {u'hasEmail': u'mailto:ghrc-dmg@itsc.uah.edu', u'fn': u'undefined'}
- organisation Name
{u'subOrganizationOf': {u'subOrganizationOf': {u'name': u'U.S. Government'}, u'name': u'National Aeronautics and Space Administration'},
u'name': u'GHRC'}
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- Contact information
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- electronic Mail Address
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Metadata data stamp:
2012-01-27T13:48:58.000Z
Metadata contact
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publisher
Metadata scope code
dataset
Metadata standard for this record:
ISO 19115:2003 - Geographic information - Metadata
standard version:
ISO 19115:2003
Metadata record identifier:
C496266-GHRC
Metadata record format is ISO19139 XML (MD_Metadata)