Stephen Dunagan - Curriculum Vitae

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EDUCATION
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Ph.D. in Mechanical Engineering

June 1986

University of Missouri, Columbia

Dissertation topic: A Holographic Interferometry Study of an Axisymmetric Shock Wave/ Boundary Layer Strong Interaction Flow.
Collateral field: Physics
Activities: Engineering Graduate Students' Association, Pi Tau Sigma, Tau Beta Pi honorary societies.

 

M.S. in Mechanical Engineering

December 1980

University of Missouri, Columbia

Master's Project Report: Laser Beam Degradation Induced by Density Fluctuations Occurring in Turbulent Flows.
Achievements: Graduate Student Teaching Award, Pi Tau Sigma, Tau Beta Pi

 

B.S. in Mechanical Engineering

May 1979

University of Missouri, Columbia

Graduated cum laude in seven semesters, dean's honor roll seven semesters, Pi Tau Sigma and Tau Beta Pi honorary societies.
Activities: Residence house president, men's USVBA volleyball club, intramural sports; football, softball, volleyball.

 

 

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PROFESSIONAL EXPERIENCE
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Aerospace Engineer

May 2002 to present

Ecosystem Science and Technology Branch, NASA Ames Research Center.
  • Development and implementation of remote sensing instrumentation for use in studies of Earth ecosystems.

 

Project Manager

April 2000 to April 2002

National Rotorcraft Technology Center, NASA Ames Research Center
  • Managed NASA participation in multi-agency research and development collaboration between government, academia, and the domestic rotorcraft industry.
  • Responsibilities included fielding and selecting proposals for collaborative research, monitoring project performance, and reporting results to the NASA Aeronautics Enterprise program offices.

 

Research Scientist

March 1995 to present

Ecosystem Science and Technology Branch,. NASA Ames Research Center
  • Development and implementation of remote sensing instrumentation for use in studies of Earth ecosystems.
  • Optical and opto-mechanical design, data system integration, aircraft integration.

 

Aerospace Engineer

June 1984 to February 1995

Rotorcraft Aeromechanics Branch, NASA Ames Research Center
  • Responsible for development and implementation of new test technologies in large scale wind tunnel testing programs.
  • Expertise in laser Doppler velocimetry, particle image displacement velocimetry, Doppler global velocimetry.
  • Other responsibilities include test director (operations) and managerial appointments.

 

Graduate Student Fellowship

June 1982 to June 1984

NASA Ames Research Center
  • Responsible for the development and implementation of holographic interferometry instrumentation applied in the experimental study of supersonic shock wave-boundary layer interactions and the turbulence modeling requirements for these flows.

 

Teaching Assistant

September 1980 to May 1982

University of Missouri, Columbi
  • Activities included the instruction of upper level under-grads in the operational theory and usage of common engineering and physical sciences instrumentation, and the instruction of lower level students in engineering graphics.

 

Plant Engineer

Summer of 1979

Kansas City Power and Light Co.
  • Startup engineer on Iatan Steam Electric Station project.
  • Supervised final construction and startup of plant systems.
  • Responsible for circulating water system, intake structure, condensers, auxiliary cooling water system, fuel oil piping, and chemical cleaning of boiler.

 

Plant Engineer

Summer of 1977 and 1978

Mobay Chemical Corporation
  • Entry level plant engineering.
  • Responsible for spare parts and maintenance of process equipment, minor process systems modifications, optimization studies, minor design projects.

 

 

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PROPOSALS FUNDED
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  • NASA Wildfire Response R&D, Applications and Technology Implementation, NASA Earth Science Research, Education and Applications Solution Network (REASoN) Cooperative Agreement Notice (CAN), awarded July 2003, $2.342M over 5 years, Co-Investigator.
  • Coffee Harvest Optimization using UAV Platforms for the Acquisition of High Spatial Resolution Real-Time Multispectral Imagery, NASA Earth Science Applications Division NRA 00-OES-02, Jan 2002, $3.1M over 3 years, Co-Investigator.
  • Hawaiian Pathfinder Digital Array Scanned Interferometer (HP-DASI) Solicited proposal, Awarded by the Environmental Research Aircraft and Sensor Technology Program (ERAST) Program manager for Science, March 1996. $250,000 over 2 years. Principle Investigator with Co-Principal Investigator: Dr. Philip D. Hammer.
  • Schmidt-Cassegrain Long Range Laser Velocimeter, awarded by the Ames Director's Discretionary Fund, Nov, 1993, $75K for two years, Principle investigator.
  • Rotating Frame Laser Velocimeter for Rotor Testing, awarded by the Ames Director's Discretionary Fund, Feb, 1988, $57K for two years, Principle investigator.

 

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REVIEWER ACTIVITIES
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Journal of Laser Applications reviewer

Earth Science Systems Pathfinder Program review

February 1990

January, 1997

 

 

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SEMINARS
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"Laser Applications at Ames Research Center" presented to the bay area Laser Safety Officer's Association, April, 1998, hosted by Jamie King.

"Large Scale Rotorcraft Testing in the National Full Scale Aerodynamics Complex", presented at Florida State University, Sept, 1986, hosted by Dr. Yulu Krothpali.

 

 

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BIBLIOGRAPHY    A. Peer-reviewed publication    B. Symposium proceedings   C. NASA and contractor reports   D. PhD Dissertation   E. Committees
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A. Peer-reviewed publications

2006
6. Herwitz, S.R., Johnson, L.F., Dunagan, S.E., Higgins, R.G., Sullivan, D.V., Zheng, J., Lobitz, B.M., Leung, J.G., Gallmeyer, B.A., Aoyagi, M., Slye, R.E., and Brass, J. 2004. Demonstration of UAV-based imaging for agricultural surveillance and decision support., Computers & Electronics in Agriculture (in press)
5.

Herwitz, S.R. Johnson, L.F., Dunagan, S.E., Higgins, R.G., Sullivan, D.V., Zheng, J., Lobitz, B.M., and Slye, R.E. 2004. Feasibility 2004. Feasibility of monitoring coffee field ripeness with UAV multispectral imagery. Applied Engineering in Agriculture (in press).


2003
4.

Ambrosia, V.G., Steven S. Wegener, Donald V. Sullivan, Sally W. Buechel, Stephen E. Dunagan, James A. Brass, Jay Stoneburner, 2003. Demonstrating UAV-Acquired Real-Time Thermal Data Over Fires, Photogrammetric Engineering and Remote Sensing, 69(4):391-402.


1996
3.

Philip D. Hammer, Lee F. Johnson, Anthony W. Strawa, Stephen E. Dunagan, Robert G. Higgins, James A. Brass, Robert E. Slye, Donald V. Sullivan, William Hayden Smith, Brad M. Lobitz, and David L. Peterson, "Surface Reflectance Mapping using Interferometric Spectral Imagery from a Remotely Piloted Aircraft", IEEE TGARS (IEEE Trans. Geosci. Remote Sensing) vol. 39 (11), Nov. 2001, pp 2499-2506.

1991
2.
Dunagan, S. E., "Schmidt-Cassegrain Optics for Laser Doppler Velocimeter Applications", Journal of Laser Applications, Vol 3, No 1, Winter 1991.

1987
1.
Dunagan, S. E., Brown, J. L., and Miles, J. B.; "Holographic Interferometry Study of an Axisymmetric Shock-Wave/Boundary Layer Strong Interaction Flow," AIAA Journal, Vol 25, no. 2, Feb., 1987.

 

B. Symposium proceedings

2003
18. Herwitz, S.R., Dunagan, S.E., Sullivan, D., Higgins, R., Johnson, L., Zheng, J., Slye, R., Brass, J.A., Leung,, J., Gallmeyer, B. and Aoyagi, M. 2003. Solar-powered UAV mission for agricultural decision support. Proceedings of the IEEE International Geoscience and Remote Sensing Symposium (IGARSS 2003). Toulouse, France
17. Herwitz, S.R., Johnson, L., Dunagan, S.E., Brass, J.A., and Witt, G. 2003. Orchestrating a near-real-time imaging mission in National Airspace using a solar-powered UAV. Proceedings of the 2nd AIAA Unmanned Unlimited Systems, Technologies, and Operations – Aerospace, Land, and Sea Conference. San Diego, California.
16. Herwitz, S.R., Leung, J., Aoyagi, M., Billlings, R.L., Wei, M.Y., Dunagan, S.E., Higgins, R., Sullivan, D., and Slye, R. 2003. Wireless LAN for operation of high resolution imaging payload on a high altitude solar-powered unmanned aerial vehicle. High-Performance Telemetry Internetworking:Adapting to the Internet Age, 2003 International Telemetering Conference. Las Vegas, Nevada.
15. Herwitz, S.R., Johnson, L., Dunagan, S.E., Higgins, R., Sullivan, D., Zheng, J., Lobitz, B., Leung, J., Gallmeyer, B., Aoyagi, M., Slye, R., Brass, J.A. and Witt, G. 2003. Coffee field ripeness detection using high resolution imaging systems on a solar-powered UAV. 30th International Symposium on Remote Sensing of Environment, Honolulu, Hawaii.
14.

Johnson, L.F., S.R. Herwitz, S.R., Dunagan, S.E., Lobitz, B.M., Sullivan, D.V. and Slye, R.E. 2003. Collection of ultra high spatial and spectral resolution image data over California vineyards with a small UAV. 30th International Symposium on Remote Sensing of Environment, Honolulu, Hawaii.


2002
13.
Herwitz, Stanley R; Leung,Joe G; Higgins, Robert G; Dunagan, Stephen E; and Arvesen, John C.; "Command-and-Control of Imaging Payloads Using Commercial Off-the-Shelf Technology", IGARSS 2002 - 2002 IEEE International Geoscience and Remote Sensing Symposium, Toronto, Canada, 24 Jun - 28 Jun 2002
12.
Herwitz, S R; Johnson, L F; Arvesen, J C; Higgins, R G; Leung, J G; Dunagan, S E, "Precision agriculture as a commercial application for solar-powered unmanned aerial vehicles", 1st Unmanned Aerospace Vehicles, Systems, Technologies, and Operations Conference and Workshop, Portsmouth, VA, May 20-23, 2002, RP: AIAA Paper 2002-3404.

2000
11.

Hammer, Philip D; Johnson, Lee F; Strawa, Anthony W; Dunagan, Stephen E; Higgins, Robert; Brass, James; Slye, Robert E; Sullivan, Don V; Lobitz, Brad M; Peterson, David L., "Surface reflectance mapping using interferometric spectral imagery from a remotely piloted aircraft" IGARSS 2000 - Proceedings of IEEE 2000 National Geoscience and Remote Sensing Symposium, Honolulu, HI, July 24-28, 2000. Vol. 2 (A01-46427 13-42), Piscataway, NJ, Institute of Electrical and Electronics Engineers, Inc., 2000, p. 816-818.

1998
10.

Dunagan, Stephen E; Hammer, Philip D; Slye, Robert E; Sullivan, Donald V; Smith, William H., "Interferometric imagery from a solar powered RPV", IGARSS '98 - 1998 IEEE International Geoscience and Remote Sensing Symposium, Seattle, WA, July 6-10, 1998, Proceedings. Vol. 2 (A99-46756 13-42), Piscataway, NJ, Institute of Electrical and Electronics Engineers, Inc., 1998, p. 645-647.
9.

Dunagan, S.E., Hammer, P. D., Slye, R. E., Sullivan, D. V., and Smith, W. H., "Interferometric Imagery from a Solar Powered RPV" presented at IGARSS'98, Seattle WA, July 7-10, 1998.

8.

Johnson, L, F., Hammer, P. D., Dunagan, S. E., Peterson, D., and Smith, W. H., "Overview of DASI High Spectral Resolution Remote Sensing in Hawaii", 1998 1st International Conference on Geospatial information in Agriculture and Forestry, Orlando FL, Apr, 1998.

1996
7. Hammer, Philip D; Smith, William H; Dunagan, Stephen E; Johnson, Lee F; Strawa, Anthony W; Peterson, David L; Zott, Joe; Langford, Gary, "Airborne hyperspectral imagery using DASI - An imaging interferometer", International Airborne Remote Sensing Conference and Exhibition: Technology, Measurement and Analysis, 2nd, San Francisco, CA, June 24-27, 1996, Proceedings. Vol. 2 (A96-41100 11-35), Ann Arbor, MI, Environmental Research Institute of Michigan, 1996, p. 283-289.
6.

Hammer, P. D., D. Peterson, W. Smith, S. Dunagan, L. Johnson, A. Strawa, J. Zott, and G. Langford. “Remote Sensing With Hyperspectral Imagery Using DASI - An Imaging Interferometer.” Proceedings, International Geoscience and Remote Sensing Symposium (IGARSS ‘96) 4. 2276-2278, May 27-31, 1996. Lincoln, NE.


1991
5.

Dunagan, S. E., "Dual Beam Laser Velocimetry with Image Rotation", Fluid Measurements and Instrumentation Forum, Proceedings of the First Joint ASME-JSME Fluids Engineering Conference, FED-Vol. 108, ASME 1991.


1989
4.

Dunagan, S. E., "Catadioptric Optics for Laser Doppler Velocimeter Applications", Proceedings of the Eighth International Congress on Applications of Lasers and Electro-Optics, Laser Institute of America, Volume 68 - Optical Methods in Flow & Particle Diagnostics, October, 1989.


1987
3.

Dunagan, S. E., and Norman, T. R.; "Lift Distributions for a 3-Dimensional Steady Blade-Vortex Interaction", Proceedings of the American Helicopter Society National Specialists Meeting on Aerodynamics and Aeroacoustics, Arlington, Texas, Feburary, 1987.


1986
2.

Miles, J. B., Dunagan, S. E., and Brown, J. L.; "Development and Implementation of an Aerodynamic Holographic Interferometry System,"SPIE 30th Annual International Technical Symposium on Optical and Optoelectrical Applied Science and Engineering, San Diego, California,August, 1986.


1985
1.

Dunagan, S. E., Brown, J. L., and Miles, J. B.; "A Holographic Interferometric Study of an Axisymmetric Shock-Wave/Boundary Layer Strong Interaction Flow," AIAA Paper 85-1564, presented at AIAA 18th Fluid Dynamics and Plasmadynamics and Lasers Conference, Cincinnati, Ohio, July, 1985.

 

C. NASA and contractor reports

1995
5.

Dunagan, S. E., and Cooper, D., "A Three Dimensional Orthogonal Laser Velocimeter for the NASA Ames 7 x 10 Wind Tunnel", NASA TM 108864, Feb, 1995

4.

Dunagan, S. E., "A Long-Range Schmidt-Cassegrain Laser Doppler Velocimeter for Large Wind Tunnel Applications" AIAA 33rd Aerospace Sciences Meeting, Reno, Jan 1995.


1989
3.

Dunagan, S. E., "Catadioptric Optics for Laser Doppler Velocimeter Applications", NASA TM-102210, Ames Research Center, October, 1989.


1987
2.

Dunagan, S. E., and Norman, T. R.; "Lift Distribution and Velocity Field Measurements for a Three-Dimensional, Blade/Vortex Interaction", NASA TM 100013, Ames Research Center, November, 1987.


1986
1.

Dunagan, S. E., Brown, J. L., and Miles, J. B.; "Interferometric Data for a Shock-Wave/Boundary-Layer Interaction," NASA TM 88227, Ames Research Center, September, 1986.

 

D. PhD dissertation

1995
1.

Dunagan, S. E., "A Holographic Interferometry Study of an Axisymmetric Shock-Wave/Boundary-Layer Strong Interaction Flow," Ph.D. Dissertation, University of Missouri-Columbia, June, 1986.

 

E. Committees

1998
3.

Astrobiology Roadmapping Workshop on Sensor Technology,, Ames Research Center, July, 1998.

2.

Astrobiology Roadmapping Workshop on Piggyback Mission Opportunities, Ames Research Center, June, 1998.


1995
1.

AIAA Standing Committee for Aerodynamic Measurement Technology, Nov., 1993 - June, 1995.