Planetary Geodynamics Laboratory
|
Oscar L. Colombo
Planetary Geodynamics Laboratory
NASA/GSFC, Code 698 Greenbelt, MD 20771 FAX: (301) 614-6522 Email: Oscar.L.Colombo@nasa.gov |
PRESENT POSITION
- Geodesist: Goddard Earth and Space Technology (University of Maryland contract).
RESEARCH INTERESTS
- Gravity field mapping from space; determination of orbits of artificial satellites; precise static and kinematic positioning using the Global Positioning System; precise aircraft navigation for geophysical surveys from the air; airborne gravimetry; measurement of small changes in the gravity field associated with global geophysical processes.
EDUCATION
- 1967 - Ingeniero en Telecomunicacions, Universidad Nacional de la Plata (Argentina).
- 1977 - PhD (Electrical Engineering), New South Wales University (Sydney, Australia).
- Thesis: On the control of discrete-time systems with constrained input and state variables.
PROFESSIONAL AFFILIATIONS
- Member: Institute of Navigation.
- Fellow: International Association of Geodesy.
SELECTED PUBLICATIONS
2008 Real-Time, Wide-Area, Precise Kinematic Positioning Using Data from Internet NTRIP Streams, Colombo, O.L., Proceedings ION GNSS 2008, Savannah, Georgia.[pdf]
2006 GPS/Acoustic Seafloor Geodetic Observation: Method of Data Analysis and its Application, Fujita, M., T. Ishikawa, M., Mochizuki, M., Sato, S. Toyama, M. Katayama, K. Kawai, Y. Matsumoto, T. Yabuki, A. Asada, and O.L. Colombo. Earth Planets Space, 58, 265-275, 2006.
2006 A Zenith Delay Model for Precise Kinematic Aircraft Navigation Colombo, O.L. Proceedings of the ION GNSS-2006, Fort Worth, Texas. [pdf]
2005 Extending Wide Area and Virtual Reference Station Networks Far Into the Sea With GPS Buoys, Colombo, O.L, M. Hernandez-Pajares, M. Juan, J. Sanz, Proceedings of the ION GNSS-2005, Long Beach, California. [pdf]
2005 West Antarctic Ice Stream Stop-and-Go Motion, Example, from work done in cooperation with M. King, at the University of Newcatle. [pdf]
2005 Results of Hong-Kong Buoy Test, 22-24 October 2004, from work done in cooperation with W. Chen, Hong Kong Polytechnic. [pdf]
2005 Example of Tsunami Detection: Analysis of GPS data from a Buoy Anchored off the Muroto Peninsula, in Japan, During te Seismic Events of September 5-6, 2004, from work done in cooperation with the University of Tokio Earthquake Research Institute. [pdf]
2004 Evaluation of Precise, Kinematic GPS Point Positioning. Colombo, O.L., A.W. Sutter, A.G. Evans: Proceedings ION GNSS-2004, Long Beach, September 2004. [pdf]
2004 Kinematic Point Positioning of a LEO With Simultaneous Reduced-Dynamic Orbit Estimation. Colombo, O.L., S.B. Luthcke, Proceedings ION GNSS-2004, Long Beach, California, September 2004. [pdf]
2003 Evaluation of Real-Time, Long-Range, Precise, Differential, Kinematic GPS Colombo, O.L., A.W. Sutter, A.G. Evans, Using Broadcast Orbits, Proceedings ION GNSS-2003, Portland, Oregon, September 2003. [pdf]
2002 Carrier-Phase Ambiguity Resolution Using a Tomographic Model of the Ionosphere Colombo, O.L., M. Hernandez-Pajares, J.M. Juan, J. Sanz, Wide-Area, "Navigation", J. Inst. Navigation, Alexandria, Virginia, Vol.41, No.1, Spring 2002. [pdf]
2001 Speeding up the estimation of floated ambiguities for sub-decimeter kinematic positioning at sea. Colombo, O.L., A.G. Evans, M. Ando, K. Tadokoro, K. Sato, T. Yamada. Proceedings ION GPS-2001, Salt Lake City, Utah, September 2001. [pdf]
2001 A New Strategy for Real-Time Integrated Water Vapor Determination in WADGPS Networks. Hernandez-Pajares, M., J. M. Juan, J. Sanz, O L. Colombo, H. van der Marel. Geophysical Research Letters, Vol. 28, No. 17, 3267-3270, September 2001. [pdf]
2000 Hernandez-Pajares, M., J. M. Juan, J. Sanz, O.L. Colombo, Application of Ionospheric Tomography to Real-Time GPS CarrierPhase Ambiguities Resolution, at Scales of 400-1000 km and With High Geomagnetic Activity. Geophysical Research Letters,Vol. 27, No. 13, 2009-2012, 1 July 2000. [pdf]
2000 Ionospheric Tomography Helps Resolve GPS Ambiguities On The Fly At distances Of Hundreds Of Kilometers During Increased Geomagnetic Activity. Colombo, O.L., M. Hernandez-Pajares, J. M. Juan., J. Sanz. Proceedings of the IEEE PLANS-2000 Symposium, San Diego, Cal., Mar. 2000. [pdf]
2000 Long-Baseline (> 1000 km), Sub-Decimeter Kinematic Positioning of Buoys at Sea, with Potential Application to Deep-Sea Studies. Colombo, O.L., A.G. Evans, M.I. Vigo-Aguiar, J.M. Ferrandiz. J.J. Benjamin. Proceedings of the ION GPS-2000 Symposium, Salt Lake City, Utah, Sep. 2000. [pdf]
1999 Resolving Carrier-Phase Ambiguities On The Fly, At More Than 100 km From Nearest Reference Site, With The Help Of Ionospheric Tomography Colombo, O.L., Hernandez-Pajares, M., J. M. Juan, J. Sanz. Proceedings of the ION GPS-99 Symposium, Nashville, Tenn., Sep. 1999. [pdf]
1998 Sea and Land Tests of Long-Baseline Kinematic GPS Indicate SubDecimeter Level Precision. Colombo, O.L., A. G. Evans. Proceedings of the INSMAP-98 Symposium, Florida State University, Melbourne, Fla., Dec. 1998. [pdf]
