| NSF Org: |
AGS Division of Atmospheric and Geospace Sciences |
| Recipient: |
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| Initial Amendment Date: | April 5, 2005 |
| Latest Amendment Date: | March 14, 2007 |
| Award Number: | 0448888 |
| Award Instrument: | Continuing Grant |
| Program Manager: |
Therese Moretto Jorgensen
AGS Division of Atmospheric and Geospace Sciences GEO Directorate for Geosciences |
| Start Date: | April 15, 2005 |
| End Date: | September 30, 2008 (Estimated) |
| Total Intended Award Amount: | $389,874.00 |
| Total Awarded Amount to Date: | $389,874.00 |
| Funds Obligated to Date: |
FY 2006 = $129,959.00 FY 2007 = $129,993.00 |
| History of Investigator: |
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| Recipient Sponsored Research Office: |
8001 BRADDOCK RD SPRINGFIELD VA US 22151-2115 (703)764-7501 |
| Sponsor Congressional District: |
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| Primary Place of Performance: |
8001 BRADDOCK RD SPRINGFIELD VA US 22151-2115 |
| 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: |
app-0106 app-0107 |
| 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
The source of gravity waves in the region 80km - 100 km is from the troposphere and stratosphere, and the ability to divine common sources can be achieved by ray-tracing techniques. Ray tracing methods are here enhanced by a three-fold research effort that first addresses the traditional limitation of application to slowly varying gravity waves. Our approach includes treatment of rapidly varying waves generated by tropospheric convection. The second task of the research is reconciliation of the classical dispersion formalism in both Eularian (ground-based) and Lagrangian (with the wave) reference frames, which to date appear to produce differing ray-trace results. Finally, this effort expands common ray trace methods to include wave propagation through a realistic, three-dimensional atmosphere rather than the steady-state approximations used to date.
PUBLICATIONS PRODUCED AS A RESULT OF THIS RESEARCH
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