[Parameters: Topic='ATMOSPHERE', Term='ATMOSPHERIC ELECTRICITY', Variable_Level_1='LIGHTNING']
GAI Long Range Lightning NetworkEntry ID: gailong
Abstract: The network is comprised of the U.S. National Lightning Detection Network
(NLDN) and the Canadian Lightning Detection Network (CLDN), the latter
commissioned for operations in February 1999. These two networks comprise an
integrated North American Lightning Detection Network (NALDN) consisting of 187
sensors (Cummins et al., 1999). The sensors are ... connected to a central
processor that records the time, polarity, signal strength, and number of
strokes of each cloud-to-ground lightning flash detected over the Gulf of
Mexico, the Atlantic, and the Pacific Oceans. A combination of time of arrival
and direction finding technology is used to locate each flash. Depending on the
location within the network, GAI claims a location accuracy of 500 meters, with
a detection probability between 80-90 percent, varying by region. These data
are ingested in real-time and stored in a raw data file. Distribution of this
data set is restricted to Earth Observing System (EOS) and TRMM affiliated
(Click for Interactive Map)
Start Date: 1996-07-12Stop Date: 2003-11-14
Latitude Resolution: 25KM
Longitude Resolution: 25KM
Horizontal Resolution Range: 10 km - < 50 km or approximately .09 degree - < .5 degree
ISO Topic Category
Access Constraints Distribution of these data are restricted to MSFC LIS Science Team collaborators and to Earth Observing System (EOS) and TRMM affiliated Investigators.
Use Constraints When NLDN data obtained from the GHRC is used in publication, the
following acknowledgement shall be used:
NLDN data provided by the NASA Lightning Imaging Sensor (LIS)
instrument team and the LIS data center via the Global Hydrology
Resource Center (GHRC) located at the Global Hydrology and Climate
Center (GHCC), Huntsville, Alabama through a license agreement with
Global Atmospherics, Inc (GAI). The data available from the GHRC are
restricted to LIS science team collaborators and to NASA EOS and TRMM
Data Set Progress
Distribution Media: FTP
Distribution Format: HDF
Email: Rich.Blakeslee at nasa.gov
Global Hydrology and Climate Center 320 Sparkman Drive
Province or State: AL
Postal Code: 35805
Role: DIF AUTHOR
Email: ghrcdaac at itsc.uah.edu
320 Sparkman Dr.
Province or State: AL
Postal Code: 35805
Cummins, K.L., et al., 1995: NLDN'95: A Combined TOA/MDF Technology Upgrade of
the U.S. National Lightning Detection Network. Intl. Aerospace & Ground
Conference on Lightning and Static Electricity, Williamsburg, VA, USA, Sept.
Cummins, K.L., R.O. Burnett, W.L. Hiscox, and A.E. Pifer, 1993: Line
Reliability and ... Fault Analysis Using the National Lightning Detection Network.
Preprints, Precise Measurements in Power Conference, Arlington, VA, Oct. 27-29,
Cummins, K.L., W.L. Hiscox, A.E. Pifer, and M.W. Maier, 1992: Performance
Analysis of the U.S. National Lightning Detection Network. Proceedings, 9th
International Conference on Atmospheric Electricity. St. Petersburg, Russia.
A.I. Voeilkov Main Geophysical Observatory, Karbysheva 7, 194018, St.
Holle, R. H. and Lopez, R. E, 1993: Overview of Real-Time Lightning Detection
Systems and their Meteorological Uses. NOAA Technical Memorandum ERL NSSL-102,
National Severe Storm Laboratory, Norman, Oklahoma, October 1993.
Maier, M. W., et al., 1983: Locating Cloud-To-Ground Lightning With Wideband
Magnetic Direction Finders. Presented at 5th Symposium on Meteorological
Observations and Instrumentation. Toronto, Ontario, Canada, April 11-15, 1983.
Orville, R.E., 1994: Cloud-to-Ground Lightning Flash Characteristics in the
Contiguous United States: 1989-1991. Journal of Geophys. Res., Vol. 5.,
Reap, R.M., D.R. MacGorman, 1989: Cloud-to-Ground Lightning: Climatological
Characteristics and Relationships to Model Fields, Radar Observations, and
Severe Local Storms. Monthly Wea. Review , 117, 518-535.
Global Atmospherics Inc. (GAI) Lightning Ground Strikes from the National
Lightning Detection Network Data Set Document. MSFC/GHRC Guide Document.
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2005-03-31
Last DIF Revision Date: 2012-09-05