Enhanced Positive Cloud-to-Ground Lightning in Thunderstorms Ingesting Smoke from Fires-Reference-Cited by-同舟云学术

Enhanced Positive Cloud-to-Ground Lightning in Thunderstorms Ingesting Smoke from Fires

Published:1998-10-02 Issue:5386 Volume:282 Page:77-80
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Lyons Walter A.¹,Nelson Thomas E.¹,Williams Earle R.¹,Cramer John A.¹,Turner Tommy R.¹

Affiliation:

1. W. A. Lyons and T. E. Nelson, FMA Research Inc., Yucca Ridge Field Station, Fort Collins, CO 80524, USA. E. R. Williams, Parsons Laboratory, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. J. A. Cramer and T. R. Turner, Global Atmospherics Inc., Tucson, AZ 85706, USA.

Abstract

Smoke from forest fires in southern Mexico was advected into the U.S. southern plains from April to June 1998. Cloud-to-ground lightning (CG) flash data from the National Lightning Detection Network matched against satellite-mapped aerosol plumes imply that thunderstorms forming in smoke-contaminated air masses generated large amounts of lightning with positive polarity (+CGs). During 2 months, nearly half a million flashes in the southern plains exhibited +CG percentages that were triple the climatological norm. The peak currents in these +CGs were double the expected value. These thunderstorms also produced abnormally high numbers of mesospheric optical sprites.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference38 articles.

1. Are vast palls of smoke from biomass burning a relatively new phenomenon? The Astronaut Training Manual (Atmospheric Phenomena) prepared by the Earth Science and Solar System Exploration Division at the Johnson Space Center notes that over a 30-year period of space photography dry-season smoke palls larger than 300 000 km 2 were unusual during the late 1960s but by 1991 were commonly 10 times as large (>3.3 × 10 6 km 2 ). On the other hand the 1997–1998 El Niño produced some of the most intense regional droughts of the last several decades in several tropical regions. A strong correlation between El Niño and the Amazon River basin discharge was noted by J. E. Richey C. Nobre and C. Deser [ Science 246 101 (1989)] who found that the lowest Amazon flow between 1903 and 1985 occurred in 1926 an El Niño year when the Amazon region experienced extensive drought and fires as noted by H. O'R. Sternberg [ Geogr. Am. 69A 201 (1987)].

2. Cummins K. L., et al., J. Geophys. Res. 103, 9035 (1998).

3. Orville R. E., Silver A. C., Mon. Weather Rev. 125, 631 (1997).

4. A detailed review of lightning characteristics in various storm types and geographic regions is given by R. L. Holle and R. E. Lopez [ NOAA Tech. Memo. NSSL-102 National Technical Information Service PB 04120953 (1993)].

5. MacGorman D. E., Burgess D. W., Mon. Weather Rev. 122, 1671 (1994).

Cited by 162 articles. 订阅此论文施引文献订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献

1. Observation of a dramatic increase in the positive cloud-to-ground lightning in the Indian summer monsoon season;Atmospheric Research;2024-03

2. The impacts of shipping emissions on lightning: roles of aerosol-radiation-interactions and aerosol-cloud-interactions;Environmental Research Letters;2024-02-27

3. Thunderstorm Electrification;Reference Module in Earth Systems and Environmental Sciences;2024

4. Understanding the Effects of Aerosols on Electrification and Lightning Polarity in an Idealized Supercell Thunderstorm via Model Emulation;Journal of Geophysical Research: Atmospheres;2023-12-29

5. Performance Analysis of Artificial Intelligence Approaches for LEMP Classification;Remote Sensing;2023-12-05