NATIONAL REPORT OF THE FEDERAL REPUBLIC OF ... - IAG Office

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Adresse des Herausgebers / Address of the publisher Deutsche Geodätische Kommission Alfons-Goppel-Straße 11 D – 80 539 München Telefon +49 - (0)89 - 23 031 -0 / -1113 Telefax +49 - (0)89 - 23 031 -1283 / -1100 E-mail hornik@dgfi.badw.de Internet http://dgk.badw.de Adressen der Herausgeber dieses Bandes / Addresses of the editors of this volume Univ. Prof. Dr.-Ing. Jürgen Müller Institut für Erdmessung Leibniz Universität Hannover Schneiderberg 50 D - 30167 Hannover Fax: +49 - 511 - 762 - 40 06 Tel.: +49 - 511 - 762 - 33 62 E-mail: mueller@ife.uni-hannover.de Dipl.-Ing. Helmut Hornik Deutsche Geodätische Kommission Alfons-Goppel-Straße 11 D - 80539 München Fax: +49 - 89 - 2 30 31 -12 83 / -11 00 Tel.: +49 - 89 - 2 30 31 11 13 E-mail: hornik@dgfi.badw.de Diese Publikation ist als pdf-Dokument im Internet veröffentlicht unter der Adresse / This volume is published as pdf-document in the internet under the address http://dgk.badw.de/index.php?id=10 © 2007 Deutsche Geodätische Kommission, München Alle Rechte vorbehalten. Ohne Genehmigung der Herausgeber ist es auch nicht gestattet, die Veröffentlichung oder Teile daraus auf photomechanischem Wege (Photokopie, Mikrokopie) zu vervielfältigen ISSN 0065-5317 ISBN 3 7696 8595 4
Foreword The XXIV General Assembly of the International Union of Geodesy and Geophysics (IUGG) will take place in Perugia/Italy from July 2 to July 13, 2007. It is a good tradition to take this opportunity for a review of the progress made in the fields of geodesy and geophysics within the period from 2003 to 2007. When the preparation of the National report has been discussed by the members of the German Geodetic Commission there was considerable doubt whether it should still be provided in printed form or rather distributed only electronically. The commission came to the conclusion that a printed documentation is still appropriate and it decided to provide a printed and an electronic version. We hope that the present report offers a useful overview of the geodetic research that has taken place in Germany during the past four years and that, in particular for the younger colleagues, it gives some ideas for future research. The past four years were of great importance, to German geodesy in particular and to international geodesy in general. Geodetic measurement techniques have meanwhile attained a level of precision and reliability that make them important tools for science and application not conceivable in previous times. Geodetic space techniques deliver global data sets that turn out to be of high relevance for the understanding of the current changes in our Earth system. It can also be observed that geodesy is more and more concerned with measuring temporal changes; whether it be plate motion, isostatic mass adjustment, ice motion, sea level change or temporal variations of the Earth’s gravity field due to deglaciation, atmospheric and ocean mass transports and the global water cycle or the variable rotation of Earth reflecting global effects of mass variations and motion in all Earth components including the Earth deep interior. However it is not only Earth sciences; applications extend from civil engineering, disaster management, navigation, time synchronisation to planetology and fundamental physics. In Germany a large part of research concentrated on the analysis of data from the on-going and very successful satellite missions CHAMP and GRACE, and on the preparation of the gravity gradiometric satellite mission GOCE. As important are the studies concerned with Earth rotation analysis, the preparations for GALILEO, optimization of the use of GNSS, and research towards the realization of the Global Geodetic Observing System (GGOS). This research has been funded in part by the Federal Ministry of Education and Research in its special Geotechnologies programme within the theme “Observation of System Earth from Space” and by the German Research Foundation (DFG) in particular with the research unit FOR 584 “Earth Rotation and Global Dynamic Processes” and with the priority program SPP-1257 “Mass Transport and Mass Distribution in the Earth System”. This National Report is arranged according to the new structure of <strong>IAG</strong>. The extensive contributions of Germany to the various <strong>IAG</strong> Services is described within the individual commission reports, except the work for the International Bibliographic Service (IBS) which is presented in a seperate report at the end of this volume. The German Geodetic Commission acknowledges very much the work of all colleagues who contributed and who helped to coordinate this report. Our special thanks go to the two editors Jürgen Müller and Helmut Hornik for their excellent work in preparing this report. München, 21 May 2007 Reiner Rummel permanent secretary of the German Geodetic Commission (DGK) 3
Page 1: DEUTSCHE GEODÄTISCHE KOMMISSION be
Page 7 and 8: Contents Commission 1 - Reference F
Page 9: COMMISSION 1 REFERENCE FRAMES 7
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Page 16 and 17: 14 Introduction Celestial Reference
Page 26 and 27: 24 Introduction The contributions o
Page 30 and 31: 28 Satellite altimetry provides a p
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Page 52 and 53: 50 Introduction In the reporting pe
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52 Commission 2 - Gravity Field of
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54 Commission 2 - Gravity Field GRU
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56 Commission 2 - Gravity Field LEM
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58 1. Modelling Techniques Fundamen
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60 Commission 2 - Gravity Field BUN
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62 Commission 2 - Gravity Field Geo
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64 Commission 2 - Gravity Field SCH
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66 Commission 2 - Gravity Field gra
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68 Commission 2 - Gravity Field LOM
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70 Introduction The four years sinc
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72 Commission 2 - Gravity Field met
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74 Commission 2 - Gravity Field SCH
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Introduction The determination of E
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Introduction German investigations
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In Europe, there are detailed inves
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SASGEN, I., MULVANEY R., KLEMANN V.
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enabling us to map the behaviour of
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NAUJOKS M, JAHR T., JENTZSCH G.,. K
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nental hydrosphere. Thus, interpret
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M. Thomas, M. Soffel, H. Drewes: Ea
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M. Thomas, M. Soffel, H. Drewes: Ea
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observed that the resulting masscha
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Since 2001, the IERS Central Bureau
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COMMISSION 4 POSITIONING AND APPLIC
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The main highlights in the past fou
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VLBI Space Geodetic Techniques (VLB
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A. Nothnagel: Space Geodetic Techni
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A. Nothnagel: Space Geodetic Techni
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also be able to track the broadband
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CHEN X., DEKING A., LANDAU H., STOL
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SEEBER G.: Beitrag für „Directio
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2003, WÜBBENA et al. 2006a) or in
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Permanent GNSS Networks, including
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G. Weber, M. Becker, J. Ihde: Perma
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G. Weber, M. Becker, J. Ihde: Perma
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General remarks The continuous and
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Introduction GNSS Based Sounding of
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J. Wickert, N. Jakowski: GNSS Based
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J. Wickert, N. Jakowski: GNSS Based
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References ADAM N.: TerraFirma Qual
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Introduction The period 2003 - 2007
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procedures and surveying instrument
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Motivation During the last years, n
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AVILA-RODRIGUEZ J.-A., PANY T., EIS
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SEIFERT A., KLEUSBERG A. (2003): An
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IAG PROJECTS 143
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The Global Geodetic Observing Syste
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KRÜGEL M., TESMER V., ANGERMANN D.
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Inter-commission Committees (ICC) A
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After the restructuring of the IAG
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Introduction Physical Aspects of Ge
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H. Drewes, M. Soffel: Physical Aspe
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W. Keller, W. Freeden: Mathematical
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W. Keller, W. Freeden: Mathematical
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H. Kutterer, W.-D. Schuh: Quality M
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B. ICC on Planetary Geodesy (ICCPG)
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Introduction Various space missions
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Photogrammetrie, Fernerkundung und
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