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dc.contributor.authorHazelton, Bryna J.
dc.contributor.authorGrefenstette, Brian W.
dc.contributor.authorSmith, David M.
dc.contributor.authorDwyer, Joseph R.
dc.contributor.authorShao, Xuanmin
dc.contributor.authorCummer, Steven A.
dc.contributor.authorChronis, Themis G.
dc.contributor.authorLay, Erin H.
dc.contributor.authorHolzworth, Robert H.
dc.date.accessioned2017-03-15T20:01:21Z
dc.date.available2017-03-15T20:01:21Z
dc.date.issued2009-01-13
dc.identifier.citationHazelton, B. J., Grefenstette, B. W., Smith, D. M., Dwyer, J. R., Shao, X. -., Cummer, S. A., . . . Holzworth, R. H. (2009). Spectral dependence of terrestrial gamma-ray flashes on source distance. Geophysical Research Letters, 36(1) doi:10.1029/2008GL035906en_US
dc.identifier.urihttp://hdl.handle.net/11141/1246
dc.description.abstractWe use lightning sferics from the World Wide Lightning Location Network to identify storms near 362 Terrestrial Gamma-ray Flashes (TGFs). The combined spectrum of TGFs with storms within 300 km of the sub-satellite point is much harder than the spectrum of TGFs with more distant storms. When these data are compared with simulations of vertically oriented relativistic runaway breakdown, it is found that the most likely model has a source altitude of 15 km and a wide-beam geometry. We find four associations of TGFs with individual sferics geolocated to positions more than 300 km from the sub-satellite point and show that a narrow-beam source at ≥21 km altitude is unlikely to produce the number of high energy photons in these TGFs.en_US
dc.language.isoen_USen_US
dc.rightsThis published article is made available in accordance with the publisher’s policy. It may be subject to U.S. copyright law.en_US
dc.rights.urihttp://publications.agu.org/author-resource-center/usage-permissions/en_US
dc.titleSpectral dependence of terrestrial gamma-ray flashes on source distanceen_US
dc.typeArticleen_US
dc.identifier.doi10.1029/2008GL035906


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