WWLLN
World Wide Lightning Location Network (wwlln.net)

Wideband VLF spectrograms below show lightning-generated sferics (vertical lines) from our lightning sensors and narrowband signals (horizontal lines) from VLF transmitters. Each spectrogram spans 15s in time (horizontal axis) and 24kHz in frequency (vertical axis) All start at precisely the same time at exactly 0, 10, 20, ... min past each hour. Click on any thumbnail below to expand it to full size (or click on its caption to open it on a new page).

Dunedin	Darwin	Brisbane	Perth
Singapore	Ōsaka	Moscow	Budapest
Seattle	Boston	Durban	São Paulo
Suva	Los Alamos	Ascension	Mexico
Tahiti	Tel Aviv	Sheffield	Lisbon
Huancayo	Puerto Rico	Sodankyla	Honolulu
Cordoba	Rothera	Lanzhou	Kingston
CostaRica	Davis	Boulder	UCLA
Yakutsk	Hermanus	ScottBase	Beijing
Nanjing	SANAE	CapeCanaveral	Tallahassee

Web editing:
Bob Holzworth (bobholz@washington.edu)