Comparison between high-speed video recordings of lightning and the detections of the Catalan Lightning Location Network (XDDE)

View/Open
Document typeConference lecture
Defense date2010
Rights accessOpen Access
Except where otherwise noted, content on this work
is licensed under a Creative Commons license
:
Attribution-NonCommercial-NoDerivs 3.0 Spain
Abstract
Lightning detections of the Catalan Lightning Location Network (XDDE) are
compared with high speed video recordings carried out in Spain during
summer 2009. At that time the XDDE was composed by four sensors: two SAFIR
3000 type and two LS8000 type. The comparison showed good agreement in
the observations at the center and at the south of the network. However, the
observations recorded at the north of the network showed a poorer detection
efficiency and location accuracy. On the other hand, the fine comparison
between frame by frame of video recordings and network detections reveals
that the network often detects mostly intra-cloud (IC) sources which probably
belong to the preliminary breakdown in downward cloud-to-ground flashes. In
some cases few sources are detected during steeped leaders toward to the
ground. In the case of our observed IC flashes, the detected sources never
corresponded to observations of propagation leaders, if not, small burst of
detections were linked to permanent illuminated channels or permanent visible
luminosity from the cloud.
CitationMontaña, J. [et al.]. Comparison between high-speed video recordings of lightning and the detections of the Catalan Lightning Location Network (XDDE). A: International Lightning Detection Conference. "21st International Lightning Detection Conference". Lake Buena Vista (FL): 2010.
Files | Description | Size | Format | View |
---|---|---|---|---|
9.Montanya, Pineda.pdf | Article | 477,3Kb | View/Open |