Journal of Geodesy (1997) 71: 384±388

IAG Newsletter Ole Baltazar Andersen IAG Central Bureau, Department of Geophysics, Juliane Maries vej 30, DK-2100 Copenhagen é, Denmark e-mail: [email protected]; Fax: +45 3536 5357; URL:http://www.gfy.ku.dk/~iag/

The IAG Newsletter is under the editorial responsibility of the IAG Central Bureau. It is an open forum and contributors are welcome to send material (preferably in electronic form) to the IAG Central Bureau. These contributions should complement information sent by IAG ocials or by IAG symposia organizers (reports and announcements). Each IAG Newsletter includes several of the following topics: · · · ·

general information reports of IAG symposia reports by national correspondents reports by commisions, special commisions or study groups · symposia announcements · book reviews · fast bibliography

Symposia announcements Maracaibo ± Venezuela 1998 February 18±27 III Venezuelan Congress of Geodesy (Congreso Venezolano de Geodesia) IV International Meeting on Geodetic Survey and Mapping Books for review are the responsibility of: Dr. Herman van Gysen Department of Surveying and Mapping, University of Natal, King George V Avenue, Durban 4001, South Africa. e-mail: [email protected] and Prof. Martin Vermeer Finnish Geodetic Institute, Geodeetinrinne 2, (PL 15), SF-02431 Masala, Finland. e-mail: Martin.Vermeer@fgi.®

(Encuentro Internacional de Mediciones Geodesicas y de Cartogra®a) Organized by: Escuela De Geodesiafacultad De Ingenieria, University Of Zulia, Maracaibo- Venezuela, Apartado Postal 526. Fax: 58 61 523759 Asociacion Venezolana De Ingenieros Geodestas Asovig, Caracas ± Venezuela. Fax: 58 2 5744683 Servicio Autonomo De Cartogra®a Nacional De Venezuela Sagecan, Caracas ± Venezuela, Venezuelan Association Of Geodesy, Maracaibo ± Venezuela, Apartado Postal No. 6 Tel: 58 61 313398, Fax 58 61 593626, e-mail: henneber@ luz.ve Organizing Committee: Rosa Benitez, Danilo Garcia, Heinz Henneberg Travel Agency: El Puente C.a., Maracaibo ± Venezuela, Fax: 58±61±970878, Post Box 10074 Topics of symposia-seminars and sessions: (1) Global and regional geodesy; (2) Datum; (3) Networks; (4) Geoid; (5) Gravity ®eld; (6) Cartography; (7) Remote sensing; (8) Reproduction; (9) Photogrammetry; (10) Geo Info Systems; (11) CADASTRE; (12) Neotectonic geodesy; (13) Crustal movements; (14) Link of geodesy to other geosciences; (15) Engineering geodesy; (16) Precision navigation; (17) Marine geodesy; (18) Height system; (19) Precision measurements in hydrography; (20) Sea surface and sea ¯oor positioning; (21) Ocean ¯oor cartography. Remark: Still changeable ± parallel meetings are foreseen. Already con®rmed and included are the following Special Sessions and Seminars: IAG: SC1: Mathematical and Physical Foundations of Geodesy. Special Committee of Section IV Convener: Erik Grafarend - President ISPRS: Mapping and GIS. ISPRS Commission IV Convener: Dieter Fritsch ± President

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The languages of the scienti®c and professional presentations and meetings are the languages of the Americas: English, Spanish, French, Portuguese. Sun eclipse At Maracaibo, 26 February 1998. The next total sun eclipse over the continent takes place during the Congress at 72°W 11°N The partial phase begins at 12 h 33 min and ends at 15 h 36 min. The total phase starts at 14 h 4 min 6.2s and lasts 4 min 08 s. (transportation to the center will be organized) Eighth General Assembly of the WEGENER Project WEGENER 97 Pianeta Maratea, Maratea (PZ), Italy 9±12 June, 1997 First Announcement The eighth General Assembly of the WEGENER Project will be held at the Grand Hotel Pianeta Maratea, located in Maratea (PZ) , Italy. Pianeta Maratea is a modern and comfortable resort located about 250 km south of Naples in one of the most beautiful spots on the Italian shore. It is fully organized for meetings and conferences. Conference organization The eighth General Assembly of WEGENER will be held on 9±11 June 1997. June 12 will be dedicated to a meeting of the Directing Board of the IAG SC6. During the three days of the General Assembly, the scienti®c program will include invited as well as contributed papers focusing on the scienti®c objectives of the WEGENER Project. Organizing committee Prof. Susanna Zerbini, President of WEGENER Dr. Hans-Peter Plag, Chairman of the WEGENER Science Advisory Committee Dr. Ing. Bernd Richter, Chairman of the WEGENER Technology Committee Prof. Sergio De Julio, President of the Italian Space Agency (ASI) Dr. Giuseppe Bianco, Head of the ASI's Space Geodesy Center G. Colombo Registration Registration fee, Lit. 250.000 (about 150 US$), will include several social events, co€ee breaks and conference documentation. Accomodation and meals A block of double rooms has been reserved at the Grand Hotel Pianeta Maratea where the conference takes place. A bu€et lunch, at a special rate, will be arranged at Pianeta Maratea. Full-board accomodation (including breakfast, lunch bu€et and dinner) is Lit. 205.000 (about 120 US$) per day per person; the additional cost for a second person in the same room, full board, is Lit. 125.000 (about 75 US$) per day per person.

Arrival information/transportation Maratea can be reached by car, taking the A3 highway going south (Napoli-Salerno-Reggio Calabria), exiting it at Lagonegro and going on the state road SS585. Maratea is located about 42 km from this exit. In total, it is a 280 km journey from Naples. A collection service, according to demand, may be organized from/to the closest international airport (Naples/Capodichino). Local contact WEGENER 97 Attn. Dr. Francesco Vespe Agenzia Spaziale Italiana Centro di Geodesia Spaziale ``G. Colombo'' I-75100 Matera (MT), Italy Tel. +39-835-377211 Fax +39-835-339005 e-mail: [email protected] Pre-registration Please provide the following details and return to the local contact's address (or e-mail) by 10 March 1997: Eighth General Assembly of the WEGENER Project. Pre-registration form: s s s s

I will de®nitely participate I will present a paper: (Please send title details) I may participate I will need transportation from/to the closest airport (Naples).

Do not forget to include the following details: Full name, name of institution, full address, and e-mail address if available. The pre-registration form is being circulated by mail and is also posted on the ASI WWW Server (http:// www.asi.it). A second circular will be mailed to those who reply to this announcement. Forthcoming Symposia related to geodesy A listing of forthcomming symposia related to geodesy can be found in Journal of Geodesy (71/04). Fast bibliography The fast bibliography consists of a listing of papers relevant to geodesy that has been collected by the IAG bibliographic service since previous issue of the fast bibliography (JG71/4). The IAG bibliographic service is based on the literary data bank GEOPHOKA, which is maintained by IfAG at the Branch Oce Leipzig,Leipzig Zentrale technisch-wissenschaftliche Angelegenheiten, Bibliothek, Karl-Rothe-Strasse 10±14, D-04105 Leipzig, Germany. This version of the fast bibliography has been supplemented with papers registered by ``Tables of Content in Geodesy'' provided by M&M Craymer and with papers registered by the American Congress on Surveying and

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Mapping (ACSM) bibliographic service. The IAG bibliographic service can be reached at the following internet address: http://www.leipzig.ifag.de. The bibliographic services are furthermore reachable through the homepage of IAG. References Ackermann F; Airborne laser scanning for elevation models. Geomatics Info Mag: Int J Geomatics, Lemmer 10 (1996) 10 Al Bayari O, Bitelli G, Bonini C; A local geoid in the south-eastern Po Valley (Italy). In: Techniques for local geoid determination: proceedings, session G7 European Geophysical Society 21st General Assembly The Hague, The Netherlands, 6±10 May 1996, Masala, (1996) Arabelos D, Spatalas SD, Tziavos IN; Geoid and tidal studies in the Mediterranean Sea. In: Techniques for local geoid determination: proceedings, session G7 European Geophysical Society 21st General Assembly The Hague, The Netherlands, 6±10 May, 1996, Masala (1996) Barthelmes F; Die Wavelet-Transformation zur Zeitreihenanalyse, Stuttgart 1996, 15 Blatt (Erste GeodaÈtische Woche, Stuttgart, 7±12 October 1996) Barzaghi R, Brovelli MA, Sona G; The new Italian quasigeoid: ITALGEO95. In: Techniques for local geoid determination: proceedings, session G7 European Geophysical Society 21st General Assembly The Hague, The Netherlands, 6±10 May 1996, Masala, (1996) Battha L, Somogyi J; Robust estimation using the Cauchy probability density. Acta Geod Geophys Hung, Budapest 31 (1996) 1±2 Beckers H, Berg G, Ho€mann K; Das Programmsystem COMPAS: ein rheinland-pfaÈlzischer Beitrag zum Echtzeit-Positionierungsdienst der deutschen Landesvermessung. Nachrbl. Vermess Katasterverwalt Rheinl-Pfalz, Koblenz 39 (1996) 3, pp 145±161 Berrocoso M, Garate J, Martin J; Improving the local geoid with GPS. In: Techniques for local geoid determination: proceedings, session G7 European Geophysical Society 21st General Assembly The Hague, The Netherlands, 6±10 May 1996, Masala, (1996) Bogdanov VI; O statuse i budushhem Kronshtadtskogo futshtoka. Geod Kartogr, Moskva 72 (1996) 6 Borza T, Kenyeres A; A di€erencialis GPS-technika hazai alkalmazasarol. Geod Kartogr, Budapest 48 (1996) 11 Bursa M; Fundamental'nye geodezicheskie postojannye. Geod Kartogr, Moskva 72 (1996) 5 Carl Zeiss. Ring-Laser-Kreisel von Carl Zeiss misst die Erdrotation in einer bisher nicht erreichten Genauigkeit: SchluÈsse auf Kontinentaldrift und damit auf Erdbeben moÈglich. In: Presseinformation, Oberkochen 1996, Nr. 121, 4 pp De Santis A, Torta JM; Spherical cap harmonic analysis of local gravity ®eld. In: Techniques for local geoid determination: proceedings, session G7 European Geophysical Society 21st General Assembly The Hague, The Netherlands, 6±10 May 1996, Masala (1996) Driscoll C; If you build it, will they come? Location-based communications and the consumer. GPS World, Eugene 7 (1996) 11 Duquenne H, Sarrailh M; Improvement of gravimetric geoid determination in the French Alps. In: Techniques for local geoid determination: proceedings, session G7 European Geophysical Society 21st General Assembly The Hague, The Netherlands, 6±10 May 1996, Masala (1996) Ehrnsperger W; Ein¯uss von GPS-Messungen und neuer Netzteile auf ein bestehendes trigonometrisches Netz I. Ordnung, dargestellt am ED87 im Bereich von OÈsterreich. OÈsterr Z Vermess Geoinf, Wien 84 (1996) 4, pp 339±348 Erker E, Hofman-Wellendorf B, Moritz H; Austrian Geoid 2000. OÈesterr Z Vermess Geoinf, Wien 84 (1996) 3

Erker E, Stangl G, Pesec P; The Austrian Geodynamic Reference Frame (AGREF): motivation and results. OÈsterr Z Vermess Geoinf, Wien 84 (1996) 3 Even-Tzur G, Papo HB; Optimization of GPS networks by linear programming. Survey Rev, London, Vol. 33, 1996, No. 262 Forschungsgruppe SatellitengeodaÈsie, Technische UniversitaÈt MuÈnchen, Deutsches GeodaÈtisches Forschungsinstitut, Institut fuÈr Angewandte GeodaÈsie, UniversitaÈt Bonn, GeodaÈtisches Institut; Rotation der Erde. BeitraÈge der Forschungsgruppe SatellitengeodaÈsie, Frankfurt am Main, (1996), 31 pp Franke P; Activities of the IfAG for the establishment of GPS Permanent Stations: Proceedings of the 5th CEI CERGOP Working Conference, Reisseck, Carinthia, Austria, 29±31 May 1996, Warsaw (1996) Froehlich H, Krieg B, Vente S; Darstellung der Breiten- und LaÈngenunterschiede zwischen den Systemen ETRS89 und DHDN bzw. S42/83 fuÈr das Gebiet der Bundesrepublik Deutschland (Erste GeodaÈtische Woche, Stuttgart, 7±12 October 1996) Geomatics Information and Trading Centre (ed); GIM's product survey on geodetic GPS receivers. Geomatics Info Mag: Int J Geomatics, Lemmer 10 (1996) 10 Goerres B; Bestimmung von HoÈhenaÈnderungen in regionalen Netzen mit dem Global Positioning System, Frankfurt am Main, 1996, 102 pp Haas R, Schuh H; Bestimmung von Loveschen und Shidaschen Zahlen mittels VLBI, Stuttgart 1996, 26 pp (Erste GeodaÈtische Woche, Stuttgart, 7±12 October 1996) Hefty J, Husar L, Melicher J; Application of astronomical positioning for local geoid determination. In: Techniques for local geoid determination: proceedings, session G7 European Geophysical Society 21st General Assembly The Hague, The Netherlands, 6±10 May 1996, Masala (1996) Heinze O; Aufbau eines operablen inertialen Vermessungssystems zur Online-Verarbeitung in der GeodaÈsie auf Basis eines kommerziellen Strapdown Inertialsystems, MuÈnchen, 1996, 67 pp Hoeggerl N; Aufbau eines orthometrischen HoÈhensystems in OÈsterreich, Stuttgart 1996, 7 Blatt (Erste GeodaÈtische Woche, Stuttgart, 7±12 October 1996) Hofmann-Wellenhof B, Lichtenegger H; UÈberlegungen beim Einsatz von GPS in der Vermessungspraxis. OÈsterr Z Vermess Geoinf, Wien 84 (1996) 4, pp 349±359 Holota P; Variational methods for quasigeoid determination. In: Techniques for local geoid determination: proceedings, session G7 European Geophysical Society 21st General Assembly The Hague, The Netherlands, 6±10 May 1996, Masala (1996) Husti G; Levelling the world's ¯attest marathon: DGPS/RDS in urban areas. Geomatics Info Mag: Int J Geomatics, Lemmer 10 (1996) 9 Ihde J; Geoidbestimmung unter Nutzung von GPS und Nivellement, Stuttgart 1996, 6 Blatt (Erste GeodaÈtische Woche, Stuttgart, 7±12 October 1996) International Association of Geodesy (ed); The geodesist's handbook 1996 (Le manuel du geodesien 1996) Berlin (1996) Jarmolenko AS; Primenenie butstrep-ocenivanija pri obrabotke rjadov geodezicheskikh izmerenijj. Geod Kartogr, Moskva 72 (1996) 6 Jiang Z; Geoid prediction using GPS levelling points and digital terrain model: a new French geoid determination G96-01. In: Techniques for local geoid determination: proceedings, session G7 European Geophysical Society 21st General Assembly The Hague, The Netherlands, 6±10 May 1996, Masala 1996 Jiang Z, Balmino G, Duquenne H; On the numerical approximation of the errors in a GPS aided gravimetric geoid determination. In: Techniques for local geoid determination: proceedings, session G7 European Geophysical Society 21st General Assembly The Hague, The Netherlands, 6±10 May 1996, Masala 1996 Jong CD de; Real-time integrity monitoring of dual-frequency GPS observations from a single receiver. Acta Geod Geophys Hung, Budapest 31 (1996) 1±2

387 Joo I; A vertikalis mozgassebessegek horizontalis gradiensei. Geod Kartogr, Budapest 68 (1996) 10 Kaczorowski M; Calculation of the Green's loading functions. Part 1: theory. Artif Satell Planet Geod, Warsaw 30 (1995) 1 Kaminskis J, Forsberg R; The geoid determination in Latvia from gravity and satellite altimetry. In: Techniques for local geoid determination: proceedings, session G7 European Geophysical Society 21st General Assembly The Hague, The Netherlands, 6± 10 May 1996, Masala (1996) Kenyeres A; Determination and use of the geoid in Hungary. In: Techniques for local geoid determination: proceedings, session G7 European Geophysical Society 21st General Assembly The Hague, The Netherlands, 6±10 May 1996, Masala (1996) Klak S, Feil L, Rozic N; Connection of height systems of Hungary and Croatia. Acta Geod Geophys Hung, Budapest 31 (1996) 1±2 Klotz J, Reinking J, Angermann D; Die Vermessung der Deformation der Erdober¯aÈche. Geowissenschaften, Berlin 14 (1996) 10, pp 389±394 Kolosovskis R; Atskiru parametru itaka apdorojant GPS matavimu rezultatus programiniu paketu GPPS. Geod Kartogr, Vilnius (1995) 1 Kosek W; Time variable band pass ®lter spectra of real and complex-valued polar motion series. Artif Satell Planet Geod, Warsaw 30 (1995) 1 Krappmann S, Moritz H; Radially symmetric zero-potential densities for the solution of gravitational inverse problems. OÈsterr Z Vermess Geoinf, Wien 84 (1996) 3 Krikstaponis B, Petroskevicius P; GPS antrosios klases tinklo sudarymo darbai. Geod Kartogr, Vilnius, 1996, Nr. 1 (23) Kuang D, Schutz BE, Watkins MM; On the structure of geometric positioning information in GPS measurements. J Geod 71 (1996) 1 Lagios E, Chailas S, Hipkin RG; Newly compiled gravity and topographic data banks of Greece. Geophys J Int, London Vol. 126, 1996, Nr. 1 Lichtenegger H; Numericka integracija u elipsoidnoj geometriji. Geod List, Zagreb 50 (1996) 2 Liu J, Chenp X, Li D; GPS kinematic carrier phase measurements for aerial photogrammetry. ISPRS J Photogramm Remote Sens. Amsterdam 51 (1996) 5 Lord N, Clarke T; Listening for layers: seismic surveying with GPS time: GPS World, Eugene 7 (1996) 11 Lyszkowicz A; Tests of a new gravimetric geoid in GPS networks. In: Techniques for local geoid determination: proceedings, session G7 European Geophysical Society 21st General Assembly The Hague, The Netherlands, 6±10 May, 1996, Masala (1996) Maekinen J, Petroskevicius P, Kazakevicius S; Sudarymas. Geod Kartogr, Vilnius, 1995, Nr. 2 (22) Makarenko NL; O perekhode na avtonomnye sputnikovye metody opredelenija koordinat: v porjadke obsuzhdenija. Geod Kartogr, Moskva 72 (1996) 5 Mansilla GA; Comparison between models to compute time delay of transionospheric radio signals. Boll Geod Sci Ani, Firenze 55 (1996) 3 Marjanovic M, Franke P, Herzberger K; Results of the CEGRN'94 and CEGRN'95 GPS campaigns: Proceedings of the 5th CEI CERGOP Working Conference, Reisseck, Carinthia, Austria, 29±31 May 1996, Warsaw 1996 Martinec Z, Vanicek P; Formulation of the boundary-value problem for geoid determination with a higher-degree reference ®eld. Geophys J Int, London Vol. 126, 1996, Nr. 1 Mashimov MM; Geodynamicheskie issledovatel'skie proekty. Geod Kartogr, Moskva 72 (1996) 6 Mickevich VI, Ledanskijj PMK; Voprosu ocenki kachestva postroenija geodezicheskikh setejj na EhVM. Geod Kartogr, Moskva 72 (1996) 6 Min E de; The Netherlands geoid computation procedure. In: Techniques for local geoid determination: proceedings, session G7 European Geophysical Society 21st General Assembly The Hague, The Netherlands, 6±10 May 1996, Masala 1996

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388 Sickle GA van; GPS for military air surveillance. GPS World, Eugene 7 (1996) 11 Sjoeberg LE; The terrain e€ect in geoid computation from satellite derived geopotential models. Boll Geod Sci Ani, Firenze 55 (1996) 4 Skeivalas J; Der Ein¯uss der Toleranz auf die ZuverlaÈssigkeit der Bestimmung systematischer Fehler. Geod Kartogr, Vilnius (1995) 1, pp 31±35 Skeivalas J; Die Ausgleichungsrechnung der geodaÈtischen Netze nach der Methode der funktionalen Verbesserungen. Geod Kartogr, Vilnius, 1995, Nr. 2 (22), pp 22±29 Skeivalas J; GPS tinklu tikslumo ivertinimo variantai. Geod Kartogr, Vilnius, 1995, Nr. 2 (22) Skeivalas J, Parseliunas E, Ramanauskas R; Lietuvos GPS pirmosios klases tinklo matavimu rezultatu apdorojimas ir islyginimas. Geod Kartogr, Vilnius (1995) 1 Skeivalas J, Petroskevicius P, Buga A; GPS stociu panaudojimo perspektyva geodezijoje. Geod Kartogr, Vilnius, 1996, Nr. 1 (23) Skeivalas J, Putrimas R; Planimetriniu koordinaciu transformavimo tikslumo analize. Geod Kartogr, Vilnius, 1996, Nr. 1 (23) Skeivalas J, Ramanauskas R, Maciulevicius L; GPS matavimu kokybes statistine analize. Geod Kartogr, Vilnius (1995) 1 Skorepa Z, Novak P; Mereni technologii GPS ve vedeckovyzkumne siti ``Stare Mesto pod Sneznikem''. Geod Kartogr Obzor, Prague 42 (1996) 7 Sledzinski Janusz (ed); Proceedings of the 5th CEI CERGOP Working Conference, Reisseck, Carinthia, Austria, 29±31 May 1996, Warsaw 1996, 219 pp Soehne W; Ein hybrides System in der GeodaÈsie: Einsatz des NAVSTAR GPS mit dem Strapdown-Inertial-Navigationssystem LASERNAV II fuÈr kinematische Punktbestimmung und Orientierung, MuÈnchen 1996, 88 pp Somogyi J, Zavoti J; A comparison of weight-functions in robust regression using iteratively reweighted least-squares. Acta Geod Geophys Hung, Budapest 31 (1996) 1±2 Staudacher F; Leica GPS lokalisiert 7. Weltwunder: Einst war der Leuchtturm Alexandrias der Mittelpunkt der Erde. Vermessungsingenieur, Wiesbaden 47 (1996) 6, pp 304±310 Sun W, Vanicek P; On the discrete problem of downward continuation of Helmert's gravity. In: Techniques for local geoid determination: proceedings, session G7 European Geophysical Society 21st General Assembly The Hague, The Netherlands, 6± 10 May 1996, Masala (1996) Targa G; Vettore A; Two methods of ®nding the geographic latitude of the ellipsoid numerical solution by microcomputers or pocket calculators. Survey Rev, London, Vol. 33, 1996, No. 262 Taylor P; When lightning strikes: split-second timing and thunderstorm forecasting. GPS World, Eugene 7 (1996) 11 Teunissen PJG; Rank defect integer least-squares with applications to GPS. Boll Geod Sci Ani, Firenze 55 (1996) 3 Torge W; International Association of Geodesy, 21st IUGG General Assembly, Boulder, Colorado, July 1995. J Geod 70 (1996) 12 Torge W; The International Association of Geodesy (IAG): more than 130 years of international cooperation. J Geod 70 (1996) 12 Tsukakoshi T, Yoshida A; Landward di€usion of stress from the trench zone. Papers Meteorol Geophys, Tokyo 46 (1995) 3 Tziavos IN, Sideris MG, Li J; Optimal spectral combination of satellite altimetry and marine gravity data. In: Techniques for local geoid determination: proceedings, session G7 European Geophysical Society 21st General Assembly The Hague, The Netherlands, 6±10 May 1996, Masala (1996)

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