| NSF Org: |
AGS Division of Atmospheric and Geospace Sciences |
| Recipient: |
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| Initial Amendment Date: | August 23, 2013 |
| Latest Amendment Date: | February 5, 2014 |
| Award Number: | 1139321 |
| Award Instrument: | Standard Grant |
| Program Manager: |
Ruth S. Lieberman
AGS Division of Atmospheric and Geospace Sciences GEO Directorate for Geosciences |
| Start Date: | September 1, 2013 |
| End Date: | August 31, 2016 (Estimated) |
| Total Intended Award Amount: | $200,000.00 |
| Total Awarded Amount to Date: | $200,000.00 |
| Funds Obligated to Date: |
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| History of Investigator: |
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| Recipient Sponsored Research Office: |
450 JANE STANFORD WAY STANFORD CA US 94305-2004 (650)723-2300 |
| Sponsor Congressional District: |
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| Primary Place of Performance: |
CA US 94309-6203 |
| Primary Place of
Performance Congressional District: |
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| Unique Entity Identifier (UEI): |
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| Parent UEI: |
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| NSF Program(s): | AERONOMY |
| Primary Program Source: |
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| Program Reference Code(s): |
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| Program Element Code(s): |
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| Award Agency Code: | 4900 |
| Fund Agency Code: | 4900 |
| Assistance Listing Number(s): | 47.050 |
ABSTRACT
This project is directed at assessing the global impact of lightning-generated Very Low Frequency (VLF) waves on radiation belt electron loss, a process known as lightning-induced electron precipitation (LEP). The project will address the following topics: (1) Quantify the connection between injection of energetic solar particles during geomagnetic storms, (2) Quantify the connections between lightning parameters and resulting LEP characteristics, and (3) Derive the total contribution of lightning to radiation belt energetic electron losses.
In order to quantify the role of lightning in energetic electron losses from the radiation belts, continuous and reliable global lightning geo-location data and a global network of observation sites to detect these precipitation events are needed. A new lightning geo-location network provides complete global coverage of lightning activity for the first time, and a global network of VLF receivers now operates, allowing monitoring of ionospheric disturbances associated with the electron precipitation. Finally, recent efforts have yielded two major breakthroughs in modeling the physical process.
This project will contribute to the training of a graduate student at Stanford University. The program will leverage, and consequently strengthen, an international network of VLF receivers that was set up under the auspices of the International Heliophysical Year (IHY). Under this program, Stanford University has placed ¡25 receivers in developing countries, sponsoring and training local scientists to use the data. Stanford has built significant infrastructure in support of this program and is continuing to hold a series of international workshops engaging scientists around the world.
PUBLICATIONS PRODUCED AS A RESULT OF THIS RESEARCH
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PROJECT OUTCOMES REPORT
Disclaimer
This Project Outcomes Report for the General Public is displayed verbatim as submitted by the Principal Investigator (PI) for this award. Any opinions, findings, and conclusions or recommendations expressed in this Report are those of the PI and do not necessarily reflect the views of the National Science Foundation; NSF has not approved or endorsed its content.
Last Modified: 02/23/2017
Modified by: Sigrid Close
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