Synoptic-Scale Satellite Lightning Observations in Conjunction with Tornadoes

Autor:	R. J. Tettelbach, B. N. Turman
Rok vydání:	1980
Předmět:	Atmospheric Science Meteorology Synoptic scale meteorology Conjunction (astronomy) Touchdown Environmental science Satellite Storm Tornado Atmospheric sciences Lightning Standard deviation
Zdroj:	Monthly Weather Review. 108:1878-1882
ISSN:	1520-0493 0027-0644
DOI:	10.1175/1520-0493(1980)108<1878:sssloi>2.0.co;2
Popis:	Experimental lightning detectors on two DMSP satellites have recorded lightning data in near coincidence (within 30 min) with tornado touchdown for 14 severe storm complexes between August 1977 and May 1979. Lightning trigger rates from these storms, averaged over the synoptic-scale (650 km radius) field of view of the sensor, are compared with trigger rates from 61 non-tornadic storms. The two trigger-rate distributions differ at the 99% confidence level, and the mean trigger rate for the tornadic storms is at least two standard deviations above the mean rate for non-tornadic storms (at 95% confidence level). Increased lightning activity is apparent some 30 min before tornado touchdown.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::016d98536b45d9dbbffa514f3bcf4de0 https://doi.org/10.1175/1520-0493(1980)108<1878:sssloi>2.0.co Zobrazit plný text záznamu