Rare measurements of a sprite with halo event driven by a negative lightning discharge over Argentina

Details Rare measurements of a sprite with halo event driven by a negative lightning discharge over Argentina Rare measurements of a sprite with halo event driven by a negative lightning discharge over Argentina

Jul 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008georl..3514812t&link_type=abstract

Geophysical Research Letters, Volume 35, Issue 14, CiteID L14812

Other

13

Atmospheric Processes: Atmospheric Electricity, Atmospheric Processes: Remote Sensing, Atmospheric Processes: Mesospheric Dynamics, Atmospheric Processes: Mesoscale Meteorology

Scientific paper

As part of a collaborative campaign to investigate Transient Luminous Events (TLEs) over South America, coordinated optical, ELF/VLF, and lightning measurements were made of a mesoscale thunderstorm observed on February 22-23, 2006 over northern Argentina that produced 445 TLEs within a ~6 hour period. Here, we report comprehensive measurements of one of these events, a sprite with halo that was unambiguously associated with a large negative cloud-to-ground (CG) lightning discharge with an impulsive vertical charge moment change (ΔMQv) of -503 C.km. This event was similar in its location, morphology and duration to other positive TLEs observed from this storm. However, the downward extent of the negative streamers was limited to 25 km, and their apparent brightness was lower than that of a comparable positive event. Observations of negative CG events are rare, and these measurements provide further evidence that sprites can be driven by upward as well as downward electric fields, as predicted by the conventional breakdown mechanism.

Affiliated with

Also associated with

No associations

Rating

Rare measurements of a sprite with halo event driven by a negative lightning discharge over Argentina does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Rare measurements of a sprite with halo event driven by a negative lightning discharge over Argentina, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rare measurements of a sprite with halo event driven by a negative lightning discharge over Argentina will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1319562