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Award Abstract #0955379

CAREER: The Plasmochemistry and Photochemistry of the Upper Atmosphere Induced by Transient Luminous Events

NSF Org: AGS
Div Atmospheric & Geospace Sciences
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Initial Amendment Date: March 4, 2010
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Latest Amendment Date: March 11, 2014
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Award Number: 0955379
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Award Instrument: Continuing grant
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Program Manager: Ruth S. Lieberman
AGS Div Atmospheric & Geospace Sciences
GEO Directorate For Geosciences
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Start Date: March 1, 2010
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End Date: February 28, 2017 (Estimated)
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Awarded Amount to Date: $412,801.00
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Investigator(s): Ningyu Liu nliu@fit.edu (Principal Investigator)
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Sponsor: Florida Institute of Technology
150 W UNIVERSITY BLVD
MELBOURNE, FL 32901-6975 (321)674-8000
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NSF Program(s): AERONOMY
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Program Reference Code(s): 0000, 1045, OTHR
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Program Element Code(s): 1521

ABSTRACT

The project will investigate lightning as a source for high-altitude optical emissions known as transient luminous events (TLEs). The objectives of the investigation are to quantify the plasmochemical and photochemical effects of TLEs in the upper atmosphere and to reveal possible pathways of atmospheric species upon impact by short, impulsive external forces. These goals will be achieved by developing and applying a self-consistent plasma chemistry and photochemistry model for TLEs, remote sensing of TLEs through optical spectroscopy, continuous data acquisition by building and maintaining a TLE observation site at Florida Tech, and comparing modeling results with satellite measurements and high-speed video observations from ground.

The educational objectives of the project are to train the next generation of researchers in the areas of aeronomy and to foster the interest of high school students and general public in atmospheric sciences. The education activities include: 1) graduate and undergraduate student training, 2) curriculum development by incorporating elements of the research into classroom, 3) building a TLE website for data sharing and public outreach, and 4) improving high school science education by participating in the Florida Tech InSTEP program, an NSF-funded GK-12 program.


PUBLICATIONS PRODUCED AS A RESULT OF THIS RESEARCH

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Liu, Ningyu; . "Multiple ion species fluid modeling of sprite halos and the role of electron detachment of O- in their dynamics," JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, v.117, 2012, p. A03308.

Liu, Ningyu; Dwyer, Joseph R.; Rassoul, Hamid K.. "Effects of pressure and humidity on positive corona inception from thundercloud hydrometeors," JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS, v.80, 2012, p. 179-186.

Liu, Ningyu; Kosar, Burcu; Sadighi, Samaneh; Dwyer, Joseph R.; Rassoul, Hamid K.. "Formation of Streamer Discharges from an Isolated Ionization Column at Subbreakdown Conditions," PHYSICAL REVIEW LETTERS, v.109, 2012, p. 025002.

Kosar, Burcu C.; Liu, Ningyu; Rassoul, Hamid K.. "Luminosity and propagation characteristics of sprite streamers initiated from small ionospheric disturbances at subbreakdown conditions," JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, v.117, 2012, p. A08328.

Liu, N. Y., and J. R. Dwyer. "Modeling terrestrial gamma-ray flashes produced by relativistic feedback discharges," Journal of Geophysical Research, v.118, 2013, p. 2359. 

Dwyer, J. R., N. Y. Liu, and H. K. Rassoul. "Properties of the thundercloud discharges responsible for terrestrial gamma-ray flashes," Geophysical Research Letters, v.40, 2013, p. 4067. 

Salem, Mohammad A. and Liu, Ningyu and Rassoul, Hamid K.. "Effects of Small Thundercloud Electrostatic Fields on the Ionospheric Density Profile," Geophys. Res. Lett., 2015. 

Liu, N. Y. and Spiva, Nicholas and Dwyer, Joseph R and Rassoul, Hamid K and Free, Dwayne and Cummer, Steven A. "{Upward electrical discharges observed above Tropical Depression Dorian}," Nat. Commun., v.6, 2015. 

Kosar, B. C., N. Y. Liu, and H. K. Rassoul. "Formation of sprite streamers at subbreakdown conditions from ionospheric inhomogeneities resembling observed sprite halo structures," Geophysical Research Letters, v.40, 2013, p. 6282. 

Liu, N. Y., V. P. Pasko, H. C. Stenbaek-Nielsen, and M. G. McHarg. "Sprite streamers imaged at different exposure times," IEEE Trans. Plasma Sci., v.39(11), 2011, p. 2710.


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BOOKS/ONE TIME PROCEEDING

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Kosar, B., N. Y. Liu, and H. K. Rassoul. "Effects of ambient field and altitude
variation on exponential growth rate of a
model positive sprite streamer", 03/01/2010-02/28/2011,  2010, "2010 NSF CEDAR workshop, Boulder, CO,
June 20-25, 2010.".

Liu, N. Y., and D. D. Sentman. "Modeling of sprite streamer chemistry", 03/01/2010-02/28/2011,  2010, "2010 NSF CEDAR workshop, Boulder, CO,
June 20-25, 2010.".

Liu, N. Y., and D. D. Sentman. "Sprite streamer chemistry driven by
electric field pulse from streamer
modeling", 03/01/2010-02/28/2011,  2010, "Workshop on TLE's and TGF's: topical
meeting of E-CANES, ASIM and TARANIS,
Amsterdam, October 25-27, 2010.".

Kosar, B., N. Y. Liu, and H. K. Rassoul. "Investigation of the exponential growth
rate of sprite streamer characteristics", 03/01/2010-02/28/2011,  2010, "2010 AGU Fall Meeting, San Francisco,
CA, December 13-17, 2010.".

Liu, N. Y., and D. D. Sentman. "A modeling study of sprite streamer
chemistry", 03/01/2010-02/28/2011,  2010, "2010 AGU Fall Meeting, San Francisco,
CA, December 13-17, 2010".

Liu, N. Y., and D. D. Sentman. "Ion chemistry and local conductivity
change induced by sprite streamers in
the lower ionosphere", 03/01/2010-02/28/2011,  2011, "2011 URSI National Radio Science
Meeting, Boulder, CO, January 5-8, 2011".

Kosar, B., N. Y. Liu, and H. K. Rassoul. "Effects of ambient field and altitude
variation on exponential growth rate of a
model positive sprite streamer", 03/01/2011-02/29/2012,  2010, "2010 NSF CEDAR workshop, Boulder, CO,
June 20-25, 2010.".

Liu, N. Y., and D. D. Sentman. "Modeling of sprite streamer chemistry", 03/01/2011-02/29/2012,  2010, "2010 NSF CEDAR workshop, Boulder, CO,
June 20-25, 2010.".

Liu, N. Y., and D. D. Sentman. "Sprite streamer chemistry driven by
electric field pulse from streamer
modeling", 03/01/2011-02/29/2012,  2010, "Workshop on TLE's and TGF's: topical
meeting of E-CANES, ASIM and TARANIS,
Amsterdam, October 25-27, 2010.".

Kosar, B., N. Y. Liu, and H. K. Rassoul. "Investigation of the exponential growth
rate of sprite streamer characteristics", 03/01/2011-02/29/2012,  2010, "2010 AGU Fall Meeting, San Francisco,
CA, December 13-17, 2010.".


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