BIFROST Project (R.A. Bennett, T.R. Carlsson, T.M. Carlsson, R. Chen, J.L. Davis, M. Ekman,
          G. Elgered, P. Elósegui, G. Hedling, R.T.K. Jaldehag, P.O.J. Jarlemark, J.M. Johansson, B. Jonsson,
           J. Kakkuri, H. Koivula, G.A. Milne, J.X. Mitrovica, B.I. Nilsson, M. Ollikainen, M. Paunonen,
           M. Poutanen, R.N. Pysklywec, B.O. Rönnäng, H.-G. Scherneck, I.I. Shapiro, and M. Vermeer),
          GPS Measurements to Constrain Geodynamic Processes in Fennoscandia,
          EOS Trans. AGU, 77, No. 35, 337-341.

Bruyninx C., J. Dousa, W. Ehrnsperger, N. Fachbach, J. M. Johansson, F. Vespe,  L. Ferraro, A. Nardi,
           M. Figurski, T. Springer, G. Weber, and A. Wiget (1998):  The Use of the EUREF Permanent
           GPS Network for the Maintenance of the European Terrestrial Reference Frame, in:
           IAG Proc. Advances in Positioning and Reference Frames,  ed. F.K. Brunner, IAG Symposia,
           Vol. 118, Springer Verlag, Berlin, 18-26.

Davis, J.L., M.L. Cosmo, and G. Elgered (1996): Using the Global Positioning System to Study the
          Atmosphere of the Earth: Overview and Prospects, in: GPS Trends in Precise Terrestrial, Airborne,
          and Spaceborne Applications, Eds. G. Beutler, G.W. Hein, W.G. Melbourne, G. Seeber,
          IAG Symposia, Vol. 115, Springer Verlag, Berlin, 233-242.

Davis, J.L. and G. Elgered, (1998):  The Spatio-Temporal Structure of GPS Water-Vapor Determinations,
          Physics and Chemistry of the Earth, 23, 91-96.

Davis, J.L., J.X. Mitrovica, H.-G. Scherneck, and H. Fan (1999),  Investigations of Fennoscandian
          glacial isostatic adjustment using modern sea-level records, J. Geophys. Res., 104, 2733-2747.

Dodson, A.H., P.J. Shardlow, L.C.M. Hubbard, G. Elgered, and P.O.J. Jarlemark (1996):
          Wet Tropospheric Effects on Precise Relative GPS Height Determination,
          J. Geodesy, 70, 188-202.

Elgered, G., J.M. Johansson, B.O. Rönnäng, and J.L. Davis (1997):  Measuring regional
          atmospheric water vapor using  the Swedish permanent GPS network,
          Geophys. Res. Letters,  24, 2663-2666.

Elgered, G., and P.O.J. Jarlemark (1998):  Ground-Based Microwave Radiometry and Long-Term
          Observations of Atmospheric Water Vapor, Radio Science, 33, 707-717.

Elósegui, P., J.L. Davis, R.T.K. Jaldehag, J.M. Johansson, A.E. Niell, and I.I.  Shapiro (1995):
          Geodesy Using the Global Positioning System: The Effects of Signal Scattering on Estimates
          of Site Position, J. Geophys. Res., 100, 9921-9934.

Elósegui, P., J.L. Davis, L.P. Gradinarsky, G. Elgered, J.M. Johansson, D. Tahmoush and
          A. Rius (1999): Sensing atmospheric structure using small-scale space geodetic networks,
          Geophys. Res. Letters., 26, 2445-2448, 1999.

Emardson, T.R., and J.M. Johansson (1998):  Spatial interpolation of the atmospheric water vapor
          content between sites in a  ground-based GPS network,  Geophys. Res. Letters, 25, 3347-3351.

Emardson, T.R., G. Elgered, and J.M. Johansson (1998a):  Three Months Continuous Monitoring of the
          Atmospheric Water Vapor with a Network of Global Positioning System Receivers,
          J. Geophys. Res., 103, 1807-1820.

Emardson, T.R., J.M. Johansson, and G. Elgered (2000): The systematic behavior of water vapor
          estimates using four years of GPS observations, Trans. IEEE Geoscience and Remote Sensing,
          (in print).

Emardson, T.R., and P.O.J. Jarlemark (1999): Atmospheric modelling in GPS analysis and its
          effect on the estimated geodetic parameters, J. Geodesy, 73, 322-331, 1999.

Haas, R., Gueguen, E., Scherneck, H.-G., Nothnagel, A., and Campbell, J., 2000. Crustal motion results
          derived from observations in the European geodetic VLBI network. Earth Planets Space,
          (submitted)6pp.

Jaldehag R.T.K., J.M. Johansson, J.L. Davis, and P. Elósegui (1996): Geodesy using the Swedish
            permanent GPS network: Effects of snow accumulation on estimates of site positions,
           Geophys. Res. Lett., 23, 1601-1604.

Jaldehag, R. T. K., J.M. Johansson, P. Elosegui, J. L., Davis, A.E. Niell, B.O. Rönnäng, and
          I.I. Shapiro (1996a):
          Geodesy Using the Swedish Permanent GPS Network: Effects of Signal Scattering on Estimates of
          Relative Site Positions, J. Geophys. Res., 101, 17,841-17,860.

Jarlemark, P.O.J., and G. Elgered (1998):  Characterizations of Temporal Variations in Atmospheric
          Water Vapor, IEEE Trans. Geosci. Remote Sens., 36, 319-321, 1998.

Jarlemark, P.O.J., and T.R. Emardson, (1998): Strategies for Temporal and Spatial Extrapolation
          and Interpolation of Wet Path Delay, J. Geodesy, 72, 350-355, 1998.

Jarlemark, P.O.J., T.R. Emardson and J.M. Johansson, (1998a): Wet Delay Variability Calculated
          from Radiometric Measurements and Its Role in Space Geodetic Parameter Estimation,
          Radio Sci., 33, 719-730.

Johansson, J.M., (1998):  GPS Antenna and Site Effects,in:  IAG Proc. Advances in Positioning
          and Reference Frames, ed. F.K. Brunner, IAG Symposia, Vol. 118, Springer Verlag, Berlin,
          229-236, 1998.

Johansson .J M., and J.F. Zumberge (1997): IGS Position Paper: Site Specific Effects,
          Proc. IGS Analysis Center Workshop, JPL, Pasadena, 1997.

Johansson, J.M., T.R. Emardson, P.O.J. Jarlemark, L. P. Gradinarsky, and G. Elgered (1998):
          The Atmospheric Influence on the Results from the Swedish GPS Network,
          Physics and Chemistry of the Earth, 23, 107-112.

Johansson, J.M., H.-G. Scherneck, M. Vermeer, H. Koivula, J.L. Davis, J.X. Mitrovica, (1998a):
           BIFROST project: Three years of continuous GPS observations,
           in Neilan, R.E., Van Scoy, P.A., Woodworth, P.L. (eds.) Workshop on Methods for Monitoring
           Sea Level, Proceedings March 17-18, 1997, Pasadena, California USA, pp. 125-140, IGS Central
           Bureau, Jet Propulsion Laboratory, Pasadena, California.

Koivula, H., M. Ollikainen, and M. Poutanen (1997): Use of the Finnish permanent GPS network
          (FinnNet) in regional GPS campaigns. IAG General Assembly, Rio de Janeiro, Brazil, 3. - 9.9.1997.

Rogers, A.E.E., R.J. Capallo, B.E. Corey, H.F. Hinteregger, A.E. Niell, R.B. Phillips, D.L. Smythe,
          A.R. Whitney, T.A. Herring, J.M. Bosworth, T.A. Clark, C. Ma, J.W. Ryan, J.L. Davis, I.I. Shapiro,
          G. Elgered, K. Jaldehag, J.M. Johansson, B.O. Rönnäng, W.E. Carter, J.R. Ray, D.S. Robertson,
          T.M. Eubanks, K.A. Kingham,  R.C. Walker, W.E. Himwich, C.E. Kuehn, D.S. MacMillan,
          R.I. Potash, D.B. Shaffer, N.R. Vandenberg, J.C. Webber, R.L. Allshouse, B.R. Schupler, and
          D. Gordon (1993):
          Improvements in the Accuracy of Geodetic VLBI, in: Contributions of Space Geodesy to
          Geodynamics:Technology, eds. D.E. Smith, and D.L. Turcotte, AGU Geodynamics Series, vol. 25,
          pp. 47-63.

Scherneck, H.-G. (1991): A parametrized solid earth tide model and ocean tide loading effects
          for global geodetic baseline measurements, Geophys. J. Int., 106, 677-694.

Scherneck, H.-G., J.M. Johansson, G. Elgered (1996): Application of Space Geodetic Techniques for the
          Determination of Intraplate Deformations and Movements in Relation with the Postglacial Rebound
          of Fennoscandia, SKB Techn. Report 96-19, Swedish Nuclear Fuel Management, Stockholm, 125pp.

Scherneck, H.-G., Johansson, J.M., Mitrovica, J.X., and Davis, J.L. (1998): The BIFROST project: GPS
          determined 3-D displacement rates in Fennoscandia from 800 days of continuous observations in the
           SWEPOS network. Tectonophysics, 294, 305-321.

Scherneck, H.-G., G. Elgered, J.M. Johansson, and B.O. Rönnäng, (1998a): Space Geodetic Activities
          at the Onsala Space Observatory: 25 years in the Service of Plate Tectonics, Physics and Chemistry
          of the Earth, 23, 811-824.

Scherneck, H.-G., Johansson, J.M., and Webb, F.H. (2000): Ocean Loading Tides in GPS and Rapid
          Variations of the Frame Origin, in Feissel, M. (ed): Proceedings IAG Symposium G5, Geodynamics,
          IUGG General Assembly Birmingham, July 19-30, 1999, pp.xx-xx, (in print).

Yang, X., B. Sass, G. Elgered, T.R. Emardson, and J.M. Johansson (1999):  A comparison of the
          integrated water vapor estimation by a NWP simulation and GPS observation, J. of Appl. Meteorol.,
          38, 941-956.

Ågren, J. (1997): Problems regarding the stimation of tropospheric parameters in conncetion with the
            determination of new points in SWEREF 93. Report on the Symposium of the IAG Subcommission
            for the European Reference Frame (EUREF) held in Sofia, 4 - 7 June 1997, volume 58,
           Veröffentlichungen der Bayerischen Kommision für die Internationale Erdmessung, 71-84, 1997.

Comments and response to the responsible author of this page:
Hans-Georg Scherneck
Onsala Space Observatory
Chalmers University of Technology
SE-439 92  ONSALA, Sweden
hgs_oso.chalmers.se