Prof. Keith Aldridge, Department of Earth & Atmospheric Science, York University, 4700 Keele Street, North York, Ontario, M3J lP3 CANADA. Tel: +1-416-736-5529 Fax: +1-416-736-5817 Email: keith@unicaat.yorku.ca

Dr. Martine Amalvict, Ecole et Observatoire des Science de la Terre, 5 rue René Descartes, 67084 Strasbourg, FRANCE. Tel: +33.3.88.41.66.96 Fax: +33.88.61.67.47 Email: mamalvict@eost.u-strasbg.fr

Prof. Dimitrios Arabelos, Dept. of Geodesy & Surveying, University of Thessaloniki, Univ. Box 474, GR-54006 Thessaloniki, GREECE. Tel: +30-31-2693 Fax: +30-31-203587 Email: -

Dr. Trevor Baker, Bidstone Observatory, Proudman Oceanographic Laboratory, Birkenhead, Merseyside, L43 7RA, UNITED KINGDOM. Tel: +44-151-653-8633 Fax: +44-151-653-6269 Email: tfb@pol.ac.uk

Dr. Dirk Banka, British Geological Survey, Regional Geophysics Group, Kingsley Dunham Centre, Keyworth, Nottingham, NG12 5GG,, UNITED KINGDOM. Tel: +44-115-936-3388 Fax: +44-115-936-3145 Email: D.Banka@BGS.AC.UK

Dr. Paolo Baldi, Dipartimento Di Fisica, Settore Di Geofisica, Universita Delfi Studi Di Bologna, Viale Berti Pichat 8, 40127 Bologna, ITALY. Tel: +39-51-630-5011 Fax: +39-51-630-5058 Email: baldi@ibogfs.df.unibo.it

Dr. M. Becker, Bundesamt für Kartographie und Geodäsie, Richard Strauss-Allee 11, D-60598 Frankfurt am Main, GERMANY. Tel: +49-69-633-3273 Fax: +49-69-633-3425 Email: becker@gps.ifag.de

Jean-Paul Boy, Ecole et Observatoire des Science de la Terre, 5 rue René Descartes, 67084 Strasbourg, FRANCE. Tel: +33.3.88.41.66.94 Fax: +33.88.41.64.77 Email: boy@titania.u-strasbg.fr

Eric Brinton 6264 Ferris Square, Suite D, San Diego, California 92121, USA. Tel: +1-619-452-7655 Fax: +1-619-452-6965 brinton@gwrinstruments.com

Dr. William Carter, University of Florida, Department of Civil Engineering, 345 Weill Hall, Gainesville, FL 32611 USA Tel: +1-352-392-5003 Fax: +1-352-392-4957 Email: bcarter@ce.ufl.edu

Dr. Giuseppe Casula, Dipartimento Di Fisica, Settore Geofisica, V.LE C.B. Pichat 8, 40127 Bologna, ITALY Tel: +39-51-630-5010 Fax:+39-51-630-5058 Email: casula@ibogfs.df.unibo.it

Prof. David Crossley, Department of Earth & Atmospheric Sciences, Saint Louis University, 3507 Laclede Ave., St. Louis, Missouri 63103, USA. Tel: +1-314-977-3153 Fax: +1-314-977-3117 Email: crossley@eas.slu.edu

Dr. Veronique Dehant, Observatoire Royal de Belgique, 3 Avenue Circulaire, ll80 Bruxelles, BELGIUM. Tel: +32.2.373.0266 Fax: +32.2.374.9822 Email: vdehant@oma.be

Prof. Carlos Denis, Universite de Liege, Institut d'Astrophysique et Geophysique, 5 Ave de Cointe, B-4000 Liege, BELGIUM. Tel: 32.04.254.7533 Fax: 32.04.254.7511 Email: denis@astro.ulg.ac.be

Dr. Michel Diament, Laboratoire Gravimetrie Case 89, Institut de Physique du Globe, 4 Place Jussieu, 75252 Paris Cedex 05, FRANCE. Tel: 33.144.277.341 Fax: 33.144.277.340 Email: diament@ipgp.jussieu.fr

Dr. Hans-Jürgen Dittfeld, Rezente Kinematik und Dynamik der Erde, GeoForschungsZentrum Potsdam, Telegrafenberg A17, D-14473 Potsdam, GERMANY. Tel: +49-331-288-1135 Fax: +49-331-288-1111 Email: ditti@gfz-potsdam.de

Dr. Nicholas D'Oreye, Laboratoire Geophysique MNHN, 19 Rue Josy Welter, L-7256 Walferdange, LUXEMBOURG. Tel: 352.33.1487 Fax: 352.33.6129 Email: nicholas.doeye@ecgs.lu

Dr. Bernard Ducarme, Observatoire Royal de Belgique, 3 Avenue Circulaire, ll80 Bruxelles, BELGIUM. Tel: +32-2-3730211 Fax: +32-2-3749822 Email: ducarme@oma.be

Dr. Martine Feissel, Institut Geographique Nationale - NSG/LAREG, 8 Avenue Blaise Pascal-Champs Marne, F-77455 Marne La Vallee Cedex 2, FRANCE. Tel: 33.1.64.15.32.83 Fax: 33.1.64.15.32.53, Email: feissel@ensg.ign.fr

Prof. Nicolas Florsch, Centre Littoral Geophysique, Univ. La Rochelle, Avenue Marillac, F-17042 La Rochelle Cedex 01, FRANCE. Tel: 33.546.45.86.13 Fax: 33.546.45.82.49 Email: nflorsch@cri.univ-lr.fr

Dr. Olivier Francis, Laboratoire Geophysique MNHN, 19 Rue Josy Welter, L-7256 Walferdange, LUXEMBOURG. Tel: 352.33.14.87 Fax: 352.33.61.29 Email: olivier@ecgs.lu

Dr. S.R. Freitas, Department Geosciencias, Universidade Federal do Parana, 81531-990 Curitiba, BRASIL, Email: sfreitas@cce.ufpr.br

Prof. Yoichi Fukuda, Department of Geophysics, Graduate School of Sciences, Kyoto University, Sakyo-ku, Kyoto 606-01, JAPAN. Tel: +81-75-753-3912 Fax: +81-75-753-3912 Email: fukuda@kugi.kyoto-u.ac.jp

Dr. Pascal Gegout, Ecole et Observatoire des Science de la Terre, 5 rue René Descartes, 67084 Strasbourg, FRANCE. Tel: +33.3.88.41.66.96 Fax: +33.88.61.67.47 Email: pascal.gegout@eost.u-strasbg,fr

Dr. Carl Gerstenecker, Institut fur Physik Geodasie, 13 Petersentrasse, D-64287 Damstadt, GERMANY. Tel: 49.6151.163209 Fax: 49.6151.164916 Email: gerstenecker@geod.tu-darmstadt.de

Prof. John Goodkind, Department of Physics, B-019, University of California, La Jolla, San Diego, California 92093, USA. Tel: +1-619-534-2716 Fax: +1-619-534-0173 Email: jgoodkind@physics.ucsd.edu

Günter Harnisch, Bundesamt für Geodasie und Kartographie, Frankfurt a. M., Aussenstelle Potsdam, Michendorfer Chaussee 23, 14473 Potsdam, GERMANY. Tel: +49-331-316613 Fax: +49-331-316602 Email: gha@potsdam.ifag.de

Martina Harnisch, Bundesamt für Geodasie und Kartographie, Frankfurt a. M., Aussenstelle Potsdam, Michendorfer Chaussee 23, 14473 Potsdam, GERMANY. Tel: +49-331-316613 Fax: +49-331-316602 Email: mha@potsdam.ifag.de

Dr. Marc Hendrickx, Observatoire Royal de Belgique, 3 Avenue Circulaire, ll80 Bruxelles, BELGIUM. Tel: 32.2.373.0379 Fax: 32.2.374.9822 Email: m.hendrickx@oma.be

Dr. Toshihiro Higashi Department of Geophysics, Kyoto University, JAPAN. Tel:+81-75-753-3915 Fax: - Email: higashi@kugi.kyoto-u.ac.jp

Dr. Jacques Hinderer, Ecole et Observatoire des Science de la Terre, 5 rue René Descartes, 67084 Strasbourg, FRANCE. Tel: +33.3.88.41.66.96 Fax: +33.88.61.67.47 Email: Jacques.Hinderer@eost.u-strasbg.fr

Prof. H.-T. Hsu, Institute of Geodesy & Geophysics, Chinese Academy of Sciences, 54 Xu Dong Road, Wuhan, Hubei 430077, P.R. CHINA. Tel: +86-27-6816006 Fax: +86-27-7811080 Email: hsuh@asch.whigg.ac.cn

Dr. Yuichi Imanishi, Ocean Research Institute, University of Tokyo, 15-1-1, Chome, Minamidai, Nakano-ku, 164 Tokyo, JAPAN Tel: +81-3-5351-6432 Fax: +81-3-3377-3293 Email: imanishi@ori.u-tokyo.ac.jp

Dr. Thomas Jahr, Institute für Geowissenschaften, FSU Jena, Burgweg 11, D-07749 Jena, GERMANY. Tel: 49-3641-948664 Fax: 49-3641-948662 Email: jahr@geo.uni-jena.de

Prof. Oliver Jensen, Department of Earth and Planetary Sciences, McGill University, 3450 University St., Montreal, Que. H3A 2A4, CANADA. Email: olivia@transsexy.geophys.mcgill.ca

Prof. Gerhardt Jentzsch, Institute für Geowissenschaften, FSU Jena, Burgweg 11, D-07749 Jena, GERMANY. Tel: +49-5323-722641 Fax: +49-5323-722320 Email: jentzsch@geo.uni-jena.de

Dr. Phillipe Jousset, Centre Recherche Geophysique, Ecole des Mines Paris, 35 Rue St. Honore, F-77305 Fontainbleuau Cedex, FRANCE. Tel: 33.164.69.49.13 Fax: 33.164.69.49.35 Email: jousset@geophys.ensmp.fr

Dr. E. Kalish, Institute Aut. Electr., Russian Academy of Sciences, Pr. Acad. Koptyuga 1, 630090 Novosibirsk, RUSSIA. Tel: 3832-333563 Fax: 3832-333863 Email: kalish@iae.nsk.su

Prof. Katsutada Kaminuma National Institute of Polar Research, 9-10, Kaga-1, Itabushi, Tokyo 173, JAPAN Tel: +81-3-3962-4695 Fax: +81-3-3962-5741 Email: kaminuma@nipr.ac.jp

Prof. Jussi Kääriäinen, Geodeettinen Laitos, Finnish Geodetic Institute, Geodeetinrinne 2, Fin-02430 Masala, FINLAND. Tel: +358-9-295550 Fax: +358-9-29555-200 Email: jussi.kaariainen@fgi.fi

Dr. Ch. Keysers, Institut Theoretische Geodasie, Nussallee 17, D-53115 Bonn, GERMANY. Tel: 49-228-739360 Fax: 49-228-733029 Email: keysers@thor.geoid.uni-bonn.de

Dr. Corinna Kroner, Institute für Geowissenschaften, FSU Jena, Burgweg 11, D-07749 Jena, GERMANY. Tel: 49-3641-948611 Fax: 49-3641-948662 Email: kroner@alfven.geo.uni-jena.de

Prof. Kurt Lambeck, Australian National University, Research School of Earth Sciences, GPO Box 4, Canberra, ACT 2601, AUSTRALIA Tel: +61-6-249-2487 Fax: +61-6-249-0756 Email: Kurt.Lambeck@anu.edu.au

Dr. Gwendolyn Laufer, Institut fur Physik Geodasie, 13 Petersentrasse, D-64287 Damstadt, GERMANY. Tel: 49-6151-163765 Fax: 49-6151-164916 Email: laeufer@geod.tu-darmstadt.de

Dr. M. Llubes, Centre Littoral Geophysique, Univ. La Rochelle, Avenue Marillac, F-17042 La Rochelle Cedex 01, FRANCE. Tel: 33.546.45.82.12 Fax: 33.543.45.82.49 Email: llubes@sg2000.cnrs.fr

Prof. Lalu Mansinha, University of Western Ontario, Department of Earth Sciences, London, Ontario N6A 5B8, CANADA. Tel:+1-519-661-4059, Fax:+1-519-661-3198, Email:lalu@uwo.ca

Dr. Jaako Makinen, Finnish Geodetic Institute, Geodeetinrinne 2, SF-02430 Masala, FINLAND. Email: makinen@fgi.fi

Prof. Iginio Marson, DINMA, Via Valerio 10-34127 Trieste, ITALY Tel: +39-40-676-3478 Fax: +39-40-676-3497 Email: marson@univ.trieste.it

Prof. Jim Merriam, Department of Geological Sciences, University of Saskatchewan, Saskatoon, Saskatchewan F7N 0W0, CANADA. Tel: +1-306-966-5716 Fax: +1-306-966-8593 Email: merriam@geoid.usask.ca

Dr. Bruno Meurers, Institute für Meteorologie und Geophysik, Hohe Warte 38, A-1190 Wien, AUSTRIA. Tel: +43-1-36026-3205 Fax: +43-1-3685612 Email: bruno.meurers@univie.ac.at

Dr. Atsushi Mukai, Department of Geophysics, Kyoto University, JAPAN Tel: +81-75-753-3913 Fax: - Email: mukai@kugi.kyoto-u.ac.jp

Dr. Kazunari Nawa, Geological Survey of Japan, Higashi 1-1-3, Tsukuba 305-8567, JAPAN. Tel: +81-298-54-3642 Fax: +81-298-54-3643 Email: nawa@gsj.go.jp

Dr. Jürgen Neumeyer, Rezente Kinematik und Dynamik der Erde, GeoForschungsZentrum Potsdam, Telegrafenberg A17, D-14473 Potsdam, GERMANY. Tel: +49-331-288-1135 Fax: +49-331-288-1111 Email: neum@gfz-potsdam.de

Dr. Tim Niebauer, Migro-g Solutions Inc., 515 Briggs Street, P.O. Box 636, Erie Co 80516, USA. Email: tmniebauer@aol.com

Dr. Spiros Pagiatakis, NRCan, Earth Sciences,, Geodetic Survey Division, 615 Booth Str., Ottawa, Ontario K1A 0E9, CANADA. Tel: +1-613-995-8720 Fax: +1-613-992-1468 Email: pagiatakis@geod.nrcan.gc.ca

Dr. Paul Paquet, Observatoire Royal de Belgique, 3 Avenue Circulaire, ll80 Bruxelles, BELGIUM. Email: paquet@oma.be

Dr. Hans-Peter Plag, Geodetic Institute, Norwegian Mapping Authority, 3504 Honefoss, NORWAY. Tel: 47-3211-8474 Fax: 47-3211-8101 Email: plag@statkart.no

Dr. Bernd Richter, Bundesamt für Kartographie und Geodäsie, Richard Strauss-Allee 11, D-60598 Frankfurt am Main, GERMANY. Tel: +49-69-633-3273 Fax: +49-69-633-3425 Email: richter@ifag.de

Dr. Bernd Ritschel, DRZ, GeoForschungsZentrum Potsdam, Telegrafenberg A3, D-14473 Potsdam, GERMANY. Tel: +49-331-288-1685, Fax: +49-331-288-1703, Email: rit@gfz-potsdam.de

Prof. Michael Rochester, Department of Earth Sciences, Memorial University, St. Johns, Newfoundland, A1B 3X5 CANADA. Email: mrochest@morgan.ucs.mun.ca

Yves Rogister, Universite de Liege, Institut d'Astrophysique et Geophysique, 5 Ave de Cointe, 4000 Liege, BELGIUM. Tel: 32-4-254-7535 Fax: 32-4-254-7511 Email: rogister@astro.ulg.ac.be

Dr. Knut Rothing, State Mapping Authority, Geodetic Institute, Kartverksvn, N-3500 Honefoss, NORWAY. Tel: +47-32-11-81-00 Fax: +47-32-11-81-01 Email: knut.rothing@gdiv.statkart.no

Dr. Tadahiro Sato, National Astronomical Observatory, Hoshigaoka-cyo, Mizusawa-shi, Iwate-ken 023, JAPAN. Tel: 81-197-22-7137 Fax: +81-197-22-2715 tsato@miz.nao.ac.jp

Dr. Peter Schwintzer, Rezente Kinematik und Dynamik der Erde, GeoForschungsZentrum Potsdam, Telegrafenberg A17, D-14473 Potsdam, F.R.GERMANY. Tel: +49-331-288-1130 Fax: +49-331-288-1111 Email:

Prof. Jiro Segawa, School of Marine Science and Technology, Tokai University, 3-20-1 Orido, Shimizu City, Shizuoka Pref. 424, JAPAN. Tel: +81-376-1251 Fax: +81-337-56716 Email: j.segawa@trout.ori.u-tokyo.ac.jp

Prof. Kazuo Shibuya, National Institute of Polar Research, Kaga 1-9-10, Itabashi-ku, Tokyo 173, Tel: +81-3-3962-4789 Fax: +81-3-3962-5741 Email: shibuya@nipr.ac.jp

Prof. Doug Smylie, Department of Earth and Atmospheric Sciences, York University, 4700 Keele St., North York, Ontario M3J 1P3 CANADA. Tel: 1-416-736-6245 Fax: 1-416-736-5817 Email: doug@core.yorku.ca

Dr. Battina Snitil, Institute of Physical Geodesy, Technical University of Darmstadt, Petersenstrasse 13, D-64287 Darmstadt, GERMANY. Tel: 49-6151-166560 Fax: 49-6151-164916 Email: snitil@geod.tu-darmstadt.de

Dr. He-Ping Sun, Institute of Geodesy and Geophysics, Chinese Academy of Sciences, 174 Xu-Dong Road, 430077 Wuhan, PR CHINA Tel: +86-27-6813841 Fax: +86-27-6813841 Email: heping@asch.whigg.ac.cn

Prof. Shuzo Takemoto, Department of Geophysics, Kyoto University, Oiwakecho Kitashirakawa, Sakyo-ku, Kyoto 606-01, JAPAN. Tel: +81-75-753-3911 Fax: +81-75-753-3917 Email: takemoto@kugi.kyoto-u.ac.jp

Dr. Yoshiaki Tamura, National Astronomical Observatory, Hoshigaoka-cho, Mizusawa, Iwate-ken 023, JAPAN. Tel: +81-197-22-7131 Fax: +81-197-22-3410 Email: tamura@gprx.miz.nao.ac.jp

Mr. Michel Van Camp, Observatoire Royal de Belgique, Avenue Circulaire 3, B-1180 Bruxelles, BELGIUM. Tel: +32-2-373-0265 Fax: +32-2-374-9822 Email: michel.vancamp@oma.be

Dr. Tonie M. van Dam, Laboratoire Geophysique MNHN, 19 Rue Josy Welter, L-7256 Walferdange, LUXEMBOURG. Email: tvd@ecgs.lu

Dr. Michel van Ruymbeke, Observatoire Royal de Belgique, Avenue Circulaire 3, B-1180 Bruxelles BELGIUM. Tel: 32-2-373-0286 Fax: 32-2-374-9822 Email: labruy@oma.be

Dr. Heikki Virtanen, Geodeettinen Laitos, Finnish Geodetic Institute, Geodeetinrinne 2, Fin-02430 Masala, FINLAND. Tel: +358-9-29555311 Fax: +358-9-29555-200 Email: heikki.virtanen@fgi.fi

Dr. Richard Warburton, 6264 Ferris Square, Suite D, San Diego, California 92121, USA. Tel: +1-619-452-7655 Fax: +1-619-452-6965 Email: warburton@gwrinstruments.com

Dr. W. Zürn, Black Forest Observatory Schiltach, Heubach 206, D-77709 Wolfach, GERMANY. Tel: Fax: Email: wzuern@gpiwap1.physik.uni-karlsruhe.de