Publications
2006
Journal Articles
Boehm, J.; Niell, A.; Tregoning, P.; Schuh, H. 2006, "Global Mapping Function (GMF): A new empirical mapping function based on numerical weather model data," Geophysical Research Letters, 33: L07304, doi:10.1029/2005GL025546. (PDF)
Niell, A.; Whitney, A.; Petrachenko, W.; Schluter, W.; Vandenberg, N.; Hase, H.; Koyama, Y.; Ma, C.; Schuh, H.; Tuccari, G. 2006, "VLBI2010: A vision for future geodetic VLBI," Proceedings, International Association of Geodesy General Assembly 2005 (in press).(PDF)
Schluter, W.; Behrend, D.; Himwich, E.; Nothnagel, A.; Niell, A.; Whitney, A. 2006, "IVS high accuracy products for the maintenance of the global reference frames as a contribution to GGOS," Proceedings, International Association of Geodesy General Assembly 2005 (in press). (PDF)
2004
Journal Articles
Park, K-D.; Elosegui, P.; Davis, J.L.; Jarlemark, P.O.J.; Corey, B.E.; Niell, A.E.; Normandeau, J.E.; Meertens, C.E.; Andreatta, V.A. 2004, "Development of an antenna and multipath calibration system for Global Positioning System sites," Radio Science, 39(5):RS5002, doi:10.1029/2003RS002999. (PDF)
Proceedings
Hase, H.; Corey, B.; Koyama, Y.; Shaffer, D.; Petrachenko, B.; Schluter, W. 2004, "Preliminary results of the VLBI2010 subgroup RF/IF, Frequency and Time," International VLBI Service for Geodesy and Astrometry 2004 General Meeting Proceedings, Feb. 9-11, 2004, Ottawa, Canada, (NASA/CP-2004-212255), Hanover, MD: NASA Center for AeroSpace Information, p. 65-69.
Hinteregger, H. 2004, "Low-cost wideband digital back-ends for LOFAR - e-VLBI - SKA," International VLBI Service for Geodesy and Astrometry 2004 General Meeting Proceedings, Feb. 9-11, 2004, Ottawa, Canada, (NASA/CP-2004-212255), Hanover, MD: NASA Center for AeroSpace Information, p. 238-242.
Koyama, Y.; Kondo, T.; Petrachenko, W.; Hinteregger, H.; Whitney, A. 2004, "Correlators in 2010 and beyond," International VLBI Service for Geodesy and Astrometry 2004 General Meeting Proceedings, Feb. 9-11, 2004, Ottawa, Canada, (NASA/CP-2004-212255), Hanover, MD: NASA Center for AeroSpace Information, p. 90-94.
Koyama, Y.; Kondo, T.; Osaki, H.; Hirabaru, M.; Takashima, K.; Sorai, K.; Takaba, H.; Fujisawa, K.; Lapsley, D.; Dudevoir, K.; Whitney, A. 2004, "Geodetic VLBI experiments with the K5 system," International VLBI Service for Geodesy and Astrometry 2004 General Meeting Proceedings, Feb. 9-11, 2004, Ottawa, Canada, (NASA/CP-2004-212255), Hanover, MD: NASA Center for AeroSpace Information, p. 220-224.
Lapsley, D. 2004, "A practical approach to e-VLBI over long fast networks," International VLBI Service for Geodesy and Astrometry 2004 General Meeting Proceedings, Feb. 9-11, 2004, Ottawa, Canada, (NASA/CP-2004-212255), Hanover, MD: NASA Center for AeroSpace Information, p. 215-219.
Petrachenko, B.; Corey, B.; Himwich, E.; Ma, C.; Malkin, Z.; Niell, A.; Shaffer, D.; Vandenberg, N. 2004, ``VLBI2010: Networks and observing strategies," International VLBI Service for Geodesy and Astrometry 2004 General Meeting Proceedings, Feb. 9-11, 2004, Ottawa, Canada, (NASA/CP-2004-212255), Hanover, MD: NASA Center for AeroSpace Information, p. 60-64.
Tuccari, G.; Whitney, A.; Hinteregger, H.a; Koyama, Y.; Kondo, T. 2004, "Backend systems – Perspectives in 2010," International VLBI Service for Geodesy and Astrometry 2004 General Meeting Proceedings, Feb. 9-11, 2004, Ottawa, Canada, (NASA/CP-2004-212255), Hanover, MD: NASA Center for AeroSpace Information, p. 80-84.
Whitney, A.; Hinteregger, H.; Kondo, T.; Koyama, Y. 2004, "Data acquisition and transport – Looking 2010 and beyond," International VLBI Service for Geodesy and Astrometry 2004 General Meeting Proceedings, Feb. 9-11, 2004, Ottawa, Canada, (NASA/CP-2004-212255), Hanover, MD: NASA Center for AeroSpace Information, p. 85-89.
Whitney, A. 2004, "The Mark 5B VLBI data system," International VLBI Service for Geodesy and Astrometry 2004 General Meeting Proceedings, Feb. 9-11, 2004, Ottawa, Canada, (NASA/CP-2004-212255), Hanover, MD: NASA Center for AeroSpace Information, p. 177-181.
2003
Journal Articles
Niell, A. E., Petrov, L. 2003, "Using a Numerical Weather Model to Improve Geodesy", The State of GPS Vertical Positioning Precision: Separation of Earth Processes by Space Geodesy (Proceedings), European Center for Geophysics and Seismology, Luxembourg, Belgium, 2-4 April, 2003, T. van Dam and O. Francis, eds. PDF
Proceedings
Niell, A.E. 2003, "The IMF Mapping functions – REV.2," GPSMet Workshop, Tsukuba, Japan. (PDF)
Niell, A.E. 2003, "Mapping Functions Using a Numerical Weather Model – Ideas," GPS Met Workshop, Tsukuba, Japan. (PDF)
2002
Proceedings
Corey, B., Titus, M. 2002, "Comparison of the VLBI observables from Mk3 and Mk4 correlation of a 24-hour geodetic experiment," International VLBI Service for Geodesy and Astrometry: General Meeting Proceedings, February 4-7, 2002, Tsukuba, Japan, N.R. Vandenberg and K.D. Baver, eds, Hanover, MD: NASA STI, pp. 112-116.
Niell, A., Tang, J. 2002, "Gradient mapping functions for VLBI and GPS," International VLBI Service for Geodesy and Astrometry: General Meeting Proceedings, February 4-7, 2002, Tsukuba, Japan, N.R. Vandenberg and K.D. Baver, eds, Hanover, MD: NASA STI, pp.215-218.
Whitney, A.R. 2002, "Mark 5 Disc-based Gbps VLBI Data System," Proceedings of the 6th European VLBI Network Symposium, June 25-28, 2002, Bonn, Germany, E. Ros et al, eds, Bonn: MPI Radiosastronomie. p. 41-44.
Whitney, A.R. 2002, "Mark 5 disc-based Gbps VLBI data system," International VLBI Service for Geodesy and Astrometry: General Meeting Proceedings, February 4-7, 2002, Tsukuba, Japan, N.R. Vandenberg and K.D. Baver, eds, Hanover, MD: NASA STI, pp. 132-136.
Whitney, A.R. 2002, "High-speed e-VLBI demonstration: Haystack Observatory to NASA/GSFC," International VLBI Service for Geodesy and Astrometry: General Meeting Proceedings, February 4-7, 2002, Tsukuba, Japan, N.R. Vandenberg and K.D. Baver, eds, Hanover, MD: NASA STI, pp.137-141.
2001
Journal Articles
Niell, A.E., Coster, A.J., Solheim, F.S., Mendes, V.B., Toor, P.C., Langley, R.B., Upham, C.A. 2001, "Comparison of measurements of atmospheric wet delay by radiosonde, water vapor radiometer, GPS, and VLBI," Journal of Atmospheric and Oceanic Technology, 18:830-850. (PDF)
Niell, A.E. 2001, "Preliminary evaluation of atmospheric mapping functions based on numerical weather models," Phys. Chem. Earth (A), 26(6-8):475-480. (PDF)
2000
Journal Articles
Niell, A.E. 2000, "Improved atmospheric mapping functions for VLBI and GPS," Earth Planets Space, 52:699-702. (PDF)
Proceedings
Corey, B.E. 2000, "RFI: Measurement Techniques," International VLBI Service for Geodesy and Astrometry (IVS) 2000 General Meeting Proceedings, February 21- 24, 2000, Koetzting, Germany; Hanover, MD: NASA, pp. 397-401.
Niell, A.E. 2000, "Improved mapping functions for GPS and VLBI," International VLBI Service for Geodesy and Astrometry (IVS) 2000 General Meeting Proceedings, February 21-24, 2000, Koetzting, Germany; Hanover, MD: NASA, pp. 263-266. (PDF)
Niell, A.E. 2000, "Westford VLBI to GPS vertical tie and implications for the TRF," Towards an Integrated Global Geodetic Observing System, (IGGOS), (IAG Section II Symposium, Munich, 5-9 October, 1998), R. Rummel et al, eds, Berlin: Springer, pp. 184-186.
Whitney, A.R. 2000, "Concept for an affordable high-data-rate VLBI recording and playback system," International VLBI Service for Geodesy and Astrometry (IVS 2000 General Meeting Proceedings, February 21-24, 2000, Koetzting, Germany; Hanover, MD: NASA, pp. 103-110.
Whitney, A.R. 2000, "How do VLBI correlators work?" International VLBI Service for Geodesy and Astrometry (IVS) 2000 General Meeting Proceedings, February 21-24, 2000, Koetzting, Germany; Hanover, MD: NASA, pp. 187-205.
Whitney, A.R. 2000, "Technology Coordinator Report," International VLBI Service for Geodesy and Astrometry (IVS) 2000 General Meeting Proceedings, February 21- 24, 2000, Koetzting, Germany; Hanover, MD: NASA, pp. 93-97.
1996
Journal ArticlesNiell, A. E., 1996, Global mapping functions for the atmosphere delay at radio wavelengths, J. Geophys. Res., 101, B2, 3227-3246. (PDF)
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