IAG RESOLUTIONS 1999 where is the carrier wavelength of the EDM signal (in micrometre, m) and ng the corresponding group refractive index. These closed formulae deviate less than 0.25 ppm from the accurate formulae (see (2) THE INTERNATIONAL ASSOCIATION OF GEODESY: FROM AN IDEAL 2 H. Drewes and J. Ádám: The International Association of Geodesy Figure 1. Eratosthenes’ method of determining the radius of a

spherical Earth.

IAG RESOLUTIONS IUGG GENERAL ASSEMBLY, MONTREAL, CANADA IAG Resolutions Adopted by the IAG Council at the XXVII th IUGG General Assembly, Montreal, Canada, July 8-18, 2019 Resolution 1: The International Terrestrial Reference Frame (ITRF) INTERNATIONAL ASSOCIATION OF GEODESY INTERNATIONAL ASSOCIATION OF GEODESY - TRAVAUX TABLE OF CONTENTS Foreword O.B. Andersen p.IV SECTION I: POSITIONING Report by the President F.K. Brunner p.5 Commissions Comm. X : Global and Regional Geodetic Networks C. Boucher p.9 Special Commisions 150 YEARS OF INTERNATIONAL COOPERATION IN GEODESY Fachbeitrag Torge, 150 Years of International Cooperation in Geodesy 168 zfv 01 1. g. geodesy (Brosche 2001). Zach had been asked in 1802 by the king of Prussia to perform a triangulation of Thuringia, and from this develops the plan of an arc measurement IAG RESOLUTIONS ADOPTED BY THE IAG COUNCIL AT THE XXVI IAG Resolutions Adopted by the IAG Council at the XXVI th IUGG General Assembly, Prague, Czech Republic, June 22 – July 2, 2015. Resolution 1: Definition and Realization of an International Height Reference

System

BULLETIN GEODESIQUE

THE HISTORY OF THE INTERNATIONAL ASSOCIATION OF GEODESY by J. J. LEVALLOIS, Honorary General Secretary % The early nineteenth century was a time of great progress for the science of THE INTERNATIONAL ASSOCIATION OF GEODESY 1862 TO 1922 The International Association of Geodesy 1862 to 1922: from a regional project to an international organization W. Torge Institut fu¨r Erdmessung, Universita¨t Hannover, Schneiderberg 50, 30167 Hannover, Germany; e-mail: torge@ife.uni-hannover.de; IAG SCIENTIFIC ASSEMBLY 2013 FINAL REPORT IAG Scientific Assembly 2013 - Final Report 2 Instead of a preface: Days to remember . The IAG Scientific Assembly 2013 which was held on the occasion of the 150th anniversary of the IAG in co-operation with the Helmholtz Centre Potsdam – GFZ German Research Centre for

Geosciences

675 PAST OFFICERS OF THE INTERNATIONAL ASSOCIATION OF 678 In the years 1983 – 1984 Gerhard Beutler was a research assistant at the University of New Brunswick (UNB) in Fredericton, Canada, where he gained first experience in IAG RESOLUTIONS 1999 where is the carrier wavelength of the EDM signal (in micrometre, m) and ng the corresponding group refractive index. These closed formulae deviate less than 0.25 ppm from the accurate formulae (see (2) THE INTERNATIONAL ASSOCIATION OF GEODESY: FROM AN IDEAL 2 H. Drewes and J. Ádám: The International Association of Geodesy Figure 1. Eratosthenes’ method of determining the radius of a

spherical Earth.

IAG RESOLUTIONS IUGG GENERAL ASSEMBLY, MONTREAL, CANADA IAG Resolutions Adopted by the IAG Council at the XXVII th IUGG General Assembly, Montreal, Canada, July 8-18, 2019 Resolution 1: The International Terrestrial Reference Frame (ITRF) INTERNATIONAL ASSOCIATION OF GEODESY INTERNATIONAL ASSOCIATION OF GEODESY - TRAVAUX TABLE OF CONTENTS Foreword O.B. Andersen p.IV SECTION I: POSITIONING Report by the President F.K. Brunner p.5 Commissions Comm. X : Global and Regional Geodetic Networks C. Boucher p.9 Special Commisions 150 YEARS OF INTERNATIONAL COOPERATION IN GEODESY Fachbeitrag Torge, 150 Years of International Cooperation in Geodesy 168 zfv 01 1. g. geodesy (Brosche 2001). Zach had been asked in 1802 by the king of Prussia to perform a triangulation of Thuringia, and from this develops the plan of an arc measurement IAG RESOLUTIONS ADOPTED BY THE IAG COUNCIL AT THE XXVI IAG Resolutions Adopted by the IAG Council at the XXVI th IUGG General Assembly, Prague, Czech Republic, June 22 – July 2, 2015. Resolution 1: Definition and Realization of an International Height Reference

System

BULLETIN GEODESIQUE

THE HISTORY OF THE INTERNATIONAL ASSOCIATION OF GEODESY by J. J. LEVALLOIS, Honorary General Secretary % The early nineteenth century was a time of great progress for the science of THE INTERNATIONAL ASSOCIATION OF GEODESY 1862 TO 1922 The International Association of Geodesy 1862 to 1922: from a regional project to an international organization W. Torge Institut fu¨r Erdmessung, Universita¨t Hannover, Schneiderberg 50, 30167 Hannover, Germany; e-mail: torge@ife.uni-hannover.de; IAG SCIENTIFIC ASSEMBLY 2013 FINAL REPORT IAG Scientific Assembly 2013 - Final Report 2 Instead of a preface: Days to remember . The IAG Scientific Assembly 2013 which was held on the occasion of the 150th anniversary of the IAG in co-operation with the Helmholtz Centre Potsdam – GFZ German Research Centre for

Geosciences

675 PAST OFFICERS OF THE INTERNATIONAL ASSOCIATION OF 678 In the years 1983 – 1984 Gerhard Beutler was a research assistant at the University of New Brunswick (UNB) in Fredericton, Canada, where he gained first experience in INTERNATIONAL ASSOCIATION OF GEODESY The International Association of Geodesy (IAG) is a scientific association in the field of geodesy. It promotes scientific cooperation and research in geodesy on a global scale and contributes to it through its various research bodies. It is a constituent association of the International Union of Geodesy and Geophysics

(IUGG).

IAG RESOLUTIONS IUGG GENERAL ASSEMBLY, MONTREAL, CANADA IAG Resolutions Adopted by the IAG Council at the XXVII th IUGG General Assembly, Montreal, Canada, July 8-18, 2019 Resolution 1: The International Terrestrial Reference Frame (ITRF) THE INTERNATIONAL ASSOCIATION OF GEODESY 1862 TO 1922 The International Association of Geodesy 1862 to 1922: from a regional project to an international organization W. Torge Institut fu¨r Erdmessung, Universita¨t Hannover, Schneiderberg 50, 30167 Hannover, Germany; e-mail: torge@ife.uni-hannover.de; INTERNATIONAL ASSOCIATION OF GEODESY A NOTE ON THE HISTORY OF THE INTERNATIONAL ASSOCIATION OF GEODESY Prof. P.-V. Angus-Leppan, President of I.A.G. The International Association of Geodesy can trace its roots back to the early IAG REPRESENTATIVES TO SCIENTIFIC BODIES IAG Representatives to Scientific Bodies IAG Representatives to the Services • BGI: Urs Marti (Switzerland) • BIPM: Richard Biancale (France) • ICGEM: Riccardo Barzaghi (Italy) • IDEMS: Riccardo Barzaghi (Italy) • IDS: Petr Stepanek (Czech Republic) • IERS: Axel Nothnagel (Germany) • IGETS: Spiros Pagiatakis (Canada) • IGFS: Urs Marti (Switzerland) INTERNATIONAL ASSOCIATION OF GEODESY IAG (2015 The terrestrial reference frame (TRF) is commonly realized by a combination of space geodetic techniques. For the combination of the techniques ‘global ties’, i.e. IAG ANNUAL REPORT 2008 • Journees 2008 “Systemes de reference spatio-temporels”, Dresden, Germany, 22-24 September 2008; • 9th European VLBI Network Symposium, Bologna, Italy, 23-26 September 2008; • 16th International Workshop on Laser Ranging, Poznan, Poland, 13-17 October 2008; • International DORIS Service (IDS) Workshop, Nice, France, 12-14 November 2009; INTERNATIONAL UNION OF GEODESY AND GEOPHYSICS INDONESIAN International Union of Geodesy and Geophysics Indonesian National Committee Country Report IUGG General Assembly Melbourne, Australia June 28 – July 7, 2011 COMITÉ ESPAGNOL DE GÉODÉSIE ET GÉOPHYSIQUE SPANISH 6 Connections detected to the real-time service of the GNSS Network of Valencia in three years 4. Passive Fourth order geodetic network New campaigns for the maintenance and upgrade of the Fourth Order geodetic

network have been

COMITÉ ESPAGNOL DE GÉODÉSIE ET GÉOPHYSIQUE SPANISH 7 Lugar de celebración: Viena Fecha: Abril, 2007 Tipo de la presentación: Poster Autores: M. E. Ramírez, M. Berrocoso, M. J. González‐Fuentes, A. Fernández‐Ros Comunicación: Crustal deformation models and time ‐ frequency analysis of GPS data from Deception Island Volcano (South Shetland Islands, Antarctica) IAG RESOLUTIONS 1999 where is the carrier wavelength of the EDM signal (in micrometre, m) and ng the corresponding group refractive index. These closed formulae deviate less than 0.25 ppm from the accurate formulae (see (2) THE INTERNATIONAL ASSOCIATION OF GEODESY: FROM AN IDEAL 2 H. Drewes and J. Ádám: The International Association of Geodesy Figure 1. Eratosthenes’ method of determining the radius of a

spherical Earth.

INTERNATIONAL ASSOCIATION OF GEODESY INTERNATIONAL ASSOCIATION OF GEODESY - TRAVAUX TABLE OF CONTENTS Foreword O.B. Andersen p.IV SECTION I: POSITIONING Report by the President F.K. Brunner p.5 Commissions Comm. X : Global and Regional Geodetic Networks C. Boucher p.9 Special Commisions 150 YEARS OF INTERNATIONAL COOPERATION IN GEODESY Fachbeitrag Torge, 150 Years of International Cooperation in Geodesy 168 zfv 01 1. g. geodesy (Brosche 2001). Zach had been asked in 1802 by the king of Prussia to perform a triangulation of Thuringia, and from this develops the plan of an arc measurement INTERNATIONAL ASSOCIATION OF GEODESY INTERNATIONAL ASSOCIATION OF GEODESY Membership Application / Renewal Form Individuals engaged in geodesy, can become individual members of the IAG on application and payment of the IAG RESOLUTIONS IUGG GENERAL ASSEMBLY, MONTREAL, CANADA IAG Resolutions Adopted by the IAG Council at the XXVII th IUGG General Assembly, Montreal, Canada, July 8-18, 2019 Resolution 1: The International Terrestrial Reference Frame (ITRF) IAG RESOLUTIONS ADOPTED BY THE IAG COUNCIL AT THE XXVI IAG Resolutions Adopted by the IAG Council at the XXVI th IUGG General Assembly, Prague, Czech Republic, June 22 – July 2, 2015. Resolution 1: Definition and Realization of an International Height Reference

System

IAG REPRESENTATIVES TO SCIENTIFIC BODIES IAG Representatives to Scientific Bodies IAG Representatives to the Services • BGI: Urs Marti (Switzerland) • BIPM: Richard Biancale (France) • ICGEM: Riccardo Barzaghi (Italy) • IDEMS: Riccardo Barzaghi (Italy) • IDS: Petr Stepanek (Czech Republic) • IERS: Axel Nothnagel (Germany) • IGETS: Spiros Pagiatakis (Canada) • IGFS: Urs Marti (Switzerland)

RESOL UT/ONS

longitude of major axis of equatorial ellipse kz = ]5 ~ West - gravimetric tidal factor (conventi-onalvalue) S = 1.16 The values of c and G, as well as their standard errors, are taken from the HISTORY OF THE INTERNATIONAL ASSOCIATION OF GEODESY Title: History of the International Association of Geodesy Created Date: Tue Oct 10 10:02:43 2006 IAG RESOLUTIONS 1999 where is the carrier wavelength of the EDM signal (in micrometre, m) and ng the corresponding group refractive index. These closed formulae deviate less than 0.25 ppm from the accurate formulae (see (2) THE INTERNATIONAL ASSOCIATION OF GEODESY: FROM AN IDEAL 2 H. Drewes and J. Ádám: The International Association of Geodesy Figure 1. Eratosthenes’ method of determining the radius of a

spherical Earth.

INTERNATIONAL ASSOCIATION OF GEODESY INTERNATIONAL ASSOCIATION OF GEODESY - TRAVAUX TABLE OF CONTENTS Foreword O.B. Andersen p.IV SECTION I: POSITIONING Report by the President F.K. Brunner p.5 Commissions Comm. X : Global and Regional Geodetic Networks C. Boucher p.9 Special Commisions 150 YEARS OF INTERNATIONAL COOPERATION IN GEODESY Fachbeitrag Torge, 150 Years of International Cooperation in Geodesy 168 zfv 01 1. g. geodesy (Brosche 2001). Zach had been asked in 1802 by the king of Prussia to perform a triangulation of Thuringia, and from this develops the plan of an arc measurement INTERNATIONAL ASSOCIATION OF GEODESY INTERNATIONAL ASSOCIATION OF GEODESY Membership Application / Renewal Form Individuals engaged in geodesy, can become individual members of the IAG on application and payment of the IAG RESOLUTIONS IUGG GENERAL ASSEMBLY, MONTREAL, CANADA IAG Resolutions Adopted by the IAG Council at the XXVII th IUGG General Assembly, Montreal, Canada, July 8-18, 2019 Resolution 1: The International Terrestrial Reference Frame (ITRF) IAG RESOLUTIONS ADOPTED BY THE IAG COUNCIL AT THE XXVI IAG Resolutions Adopted by the IAG Council at the XXVI th IUGG General Assembly, Prague, Czech Republic, June 22 – July 2, 2015. Resolution 1: Definition and Realization of an International Height Reference

System

IAG REPRESENTATIVES TO SCIENTIFIC BODIES IAG Representatives to Scientific Bodies IAG Representatives to the Services • BGI: Urs Marti (Switzerland) • BIPM: Richard Biancale (France) • ICGEM: Riccardo Barzaghi (Italy) • IDEMS: Riccardo Barzaghi (Italy) • IDS: Petr Stepanek (Czech Republic) • IERS: Axel Nothnagel (Germany) • IGETS: Spiros Pagiatakis (Canada) • IGFS: Urs Marti (Switzerland)

RESOL UT/ONS

longitude of major axis of equatorial ellipse kz = ]5 ~ West - gravimetric tidal factor (conventi-onalvalue) S = 1.16 The values of c and G, as well as their standard errors, are taken from the HISTORY OF THE INTERNATIONAL ASSOCIATION OF GEODESY Title: History of the International Association of Geodesy Created Date: Tue Oct 10 10:02:43 2006 INTERNATIONAL ASSOCIATION OF GEODESY INTERNATIONAL ASSOCIATION OF GEODESY Membership Application / Renewal Form Individuals engaged in geodesy, can become individual members of the IAG on application and payment of the 2015-2019 KOREAN NATIONAL REPORT TO IAG Korean National Report to the International Association for Geodesy, 2019 1 1. INTRODUCTION Over the period from 2015 to 2019, meaningful progresses on Space Geodesy in South Korea IAG REPRESENTATIVES TO SCIENTIFIC BODIES IAG Representatives to Scientific Bodies IAG Representatives to the Services • BGI: Urs Marti (Switzerland) • BIPM: Richard Biancale (France) • ICGEM: Riccardo Barzaghi (Italy) • IDEMS: Riccardo Barzaghi (Italy) • IDS: Petr Stepanek (Czech Republic) • IERS: Axel Nothnagel (Germany) • IGETS: Spiros Pagiatakis (Canada) • IGFS: Urs Marti (Switzerland) THE INTERNATIONAL ASSOCIATION OF GEODESY 1862 TO 1922 The International Association of Geodesy 1862 to 1922: from a regional project to an international organization W. Torge Institut fu¨r Erdmessung, Universita¨t Hannover, Schneiderberg 50, 30167 Hannover, Germany; e-mail: torge@ife.uni-hannover.de;

J GEOD (2016) 90

Title: J Geod (2016) 90: Author: Drewes Created Date: 1/25/2017

9:34:22 AM

OFFICE.IAG-AIG.ORG

FOREWORD Ole B. Andersen (IAG Information Editor) Every four years, after every General Assembly, the International Association of Geodesy publishes the Geodesist’s Handbook as IAG SCIENTIFIC ASSEMBLY 2013 FINAL REPORT IAG Scientific Assembly 2013 - Final Report 2 Instead of a preface: Days to remember . The IAG Scientific Assembly 2013 which was held on the occasion of the 150th anniversary of the IAG in co-operation with the Helmholtz Centre Potsdam – GFZ German Research Centre for

Geosciences

OFFICE.IAG-AIG.ORG

International Association of Geodesy - Travaux 2005 Table of Contents Commissions Commission 1 - Reference Frames Commission 2 - Gravity Field Commission 3 - Geodynamics and Earth 675 PAST OFFICERS OF THE INTERNATIONAL ASSOCIATION OF 678 In the years 1983 – 1984 Gerhard Beutler was a research assistant at the University of New Brunswick (UNB) in Fredericton, Canada, where he gained first experience in 2007-2010 CHINA NATIONAL REPORT ON GEODESY 2007-2010 China National Report on Geodesy by Chinese National Committee for IAG CONTENTS 1. Preface CHENG Pengfei and DANG Yamin 2. Modernization of China Geodetic Datum (2000-2010) INTERNATIONAL ASSOCIATION OF GEODESYIAGACTIVITESPUBLICATIONSLINKSCOMMISSIONSSERVICES The International Association of Geodesy (IAG) is a scientific association in the field of geodesy. It promotes scientific cooperation and research in geodesy on a global scale and contributes to it through its various research bodies. It is a constituent association of the International Union of Geodesy and Geophysics

(IUGG).

THE INTERNATIONAL ASSOCIATION OF GEODESY: FROM AN IDEAL 2 H. Drewes and J. Ádám: The International Association of Geodesy Figure 1. Eratosthenes’ method of determining the radius of a

spherical Earth.

IAG RESOLUTIONS 1999 where is the carrier wavelength of the EDM signal (in micrometre, m) and ng the corresponding group refractive index. These closed formulae deviate less than 0.25 ppm from the accurate formulae (see (2) INTERNATIONAL ASSOCIATION OF GEODESY INTERNATIONAL ASSOCIATION OF GEODESY - TRAVAUX TABLE OF CONTENTS Foreword O.B. Andersen p.IV SECTION I: POSITIONING Report by the President F.K. Brunner p.5 Commissions Comm. X : Global and Regional Geodetic Networks C. Boucher p.9 Special Commisions 150 YEARS OF INTERNATIONAL COOPERATION IN GEODESY Fachbeitrag Torge, 150 Years of International Cooperation in Geodesy 168 zfv 01 1. g. geodesy (Brosche 2001). Zach had been asked in 1802 by the king of Prussia to perform a triangulation of Thuringia, and from this develops the plan of an arc measurement IAG OFFICETRANSLATE THIS PAGE

IAG Office

IAG RESOLUTIONS ADOPTED BY THE IAG COUNCIL AT THE XXVI IAG Resolutions Adopted by the IAG Council at the XXVI th IUGG General Assembly, Prague, Czech Republic, June 22 – July 2, 2015. Resolution 1: Definition and Realization of an International Height Reference

System

BULLETIN GEODESIQUE

THE HISTORY OF THE INTERNATIONAL ASSOCIATION OF GEODESY by J. J. LEVALLOIS, Honorary General Secretary % The early nineteenth century was a time of great progress for the science of RESOLUTIONS ADOPTED BY THE INTERNATIONAL ASSOCIATION OF RESOLUTION N ~ 2 The International Association of Geodesv, recognizing the importance in mountain areas of precise geoid determination by a combination of astrogeodetic, gravimetric and other data, and SUMMARY OF THE SECOND MEETING OF THE IAG EXECUTIVE - 1 - Summary of the Second Meeting of the IAG Executive Committee 2007 – 2011 Place: Hotel Westin, 50 Third Street, San Francisco, California 94103, USA Time: Saturday, 8 December 2007, 10:00 - 18:15 Attendees (voting): Michael Sideris (President), Hermann Drewes (Secretary General), Gerhard Beutler (Immediate Past President), Zuheir Altamimi (President Commission 1), Pieter Visser INTERNATIONAL ASSOCIATION OF GEODESYIAGACTIVITESPUBLICATIONSLINKSCOMMISSIONSSERVICES The International Association of Geodesy (IAG) is a scientific association in the field of geodesy. It promotes scientific cooperation and research in geodesy on a global scale and contributes to it through its various research bodies. It is a constituent association of the International Union of Geodesy and Geophysics

(IUGG).

THE INTERNATIONAL ASSOCIATION OF GEODESY: FROM AN IDEAL 2 H. Drewes and J. Ádám: The International Association of Geodesy Figure 1. Eratosthenes’ method of determining the radius of a

spherical Earth.

IAG RESOLUTIONS 1999 where is the carrier wavelength of the EDM signal (in micrometre, m) and ng the corresponding group refractive index. These closed formulae deviate less than 0.25 ppm from the accurate formulae (see (2) INTERNATIONAL ASSOCIATION OF GEODESY INTERNATIONAL ASSOCIATION OF GEODESY - TRAVAUX TABLE OF CONTENTS Foreword O.B. Andersen p.IV SECTION I: POSITIONING Report by the President F.K. Brunner p.5 Commissions Comm. X : Global and Regional Geodetic Networks C. Boucher p.9 Special Commisions 150 YEARS OF INTERNATIONAL COOPERATION IN GEODESY Fachbeitrag Torge, 150 Years of International Cooperation in Geodesy 168 zfv 01 1. g. geodesy (Brosche 2001). Zach had been asked in 1802 by the king of Prussia to perform a triangulation of Thuringia, and from this develops the plan of an arc measurement IAG OFFICETRANSLATE THIS PAGE

IAG Office

IAG RESOLUTIONS ADOPTED BY THE IAG COUNCIL AT THE XXVI IAG Resolutions Adopted by the IAG Council at the XXVI th IUGG General Assembly, Prague, Czech Republic, June 22 – July 2, 2015. Resolution 1: Definition and Realization of an International Height Reference

System

BULLETIN GEODESIQUE

THE HISTORY OF THE INTERNATIONAL ASSOCIATION OF GEODESY by J. J. LEVALLOIS, Honorary General Secretary % The early nineteenth century was a time of great progress for the science of RESOLUTIONS ADOPTED BY THE INTERNATIONAL ASSOCIATION OF RESOLUTION N ~ 2 The International Association of Geodesv, recognizing the importance in mountain areas of precise geoid determination by a combination of astrogeodetic, gravimetric and other data, and SUMMARY OF THE SECOND MEETING OF THE IAG EXECUTIVE - 1 - Summary of the Second Meeting of the IAG Executive Committee 2007 – 2011 Place: Hotel Westin, 50 Third Street, San Francisco, California 94103, USA Time: Saturday, 8 December 2007, 10:00 - 18:15 Attendees (voting): Michael Sideris (President), Hermann Drewes (Secretary General), Gerhard Beutler (Immediate Past President), Zuheir Altamimi (President Commission 1), Pieter Visser IAG OFFICETRANSLATE THIS PAGE

IAG Office

INTERNATIONAL ASSOCIATION OF GEODESY INTERNATIONAL ASSOCIATION OF GEODESY Membership Application / Renewal Form Individuals engaged in geodesy, can become individual members of the IAG on application and payment of the IAG RESOLUTIONS ADOPTED BY THE IAG COUNCIL AT THE XXVI IAG Resolutions Adopted by the IAG Council at the XXVI th IUGG General Assembly, Prague, Czech Republic, June 22 – July 2, 2015. Resolution 1: Definition and Realization of an International Height Reference

System

IAG RESOLUTIONS IUGG GENERAL ASSEMBLY, MONTREAL, CANADA IAG Resolutions Adopted by the IAG Council at the XXVII th IUGG General Assembly, Montreal, Canada, July 8-18, 2019 Resolution 1: The International Terrestrial Reference Frame (ITRF) THE INTERNATIONAL ASSOCIATION OF GEODESY 1862 TO 1922 The International Association of Geodesy 1862 to 1922: from a regional project to an international organization W. Torge Institut fu¨r Erdmessung, Universita¨t Hannover, Schneiderberg 50, 30167 Hannover, Germany; e-mail: torge@ife.uni-hannover.de; INTERNATIONAL ASSOCIATION OF GEODESY A NOTE ON THE HISTORY OF THE INTERNATIONAL ASSOCIATION OF GEODESY Prof. P.-V. Angus-Leppan, President of I.A.G. The International Association of Geodesy can trace its roots back to the early IAG SCIENTIFIC ASSEMBLY 2013 FINAL REPORT IAG Scientific Assembly 2013 - Final Report 2 Instead of a preface: Days to remember . The IAG Scientific Assembly 2013 which was held on the occasion of the 150th anniversary of the IAG in co-operation with the Helmholtz Centre Potsdam – GFZ German Research Centre for

Geosciences

INTERNATIONAL ASSOCIATION OF GEODESYTRANSLATE THIS PAGE International Association of Geodesy 675 PAST OFFICERS OF THE INTERNATIONAL ASSOCIATION OF 678 In the years 1983 – 1984 Gerhard Beutler was a research assistant at the University of New Brunswick (UNB) in Fredericton, Canada, where he gained first experience in SUMMARY OF THE SECOND MEETING OF THE IAG EXECUTIVE - 1 - Summary of the Second Meeting of the IAG Executive Committee 2007 – 2011 Place: Hotel Westin, 50 Third Street, San Francisco, California 94103, USA Time: Saturday, 8 December 2007, 10:00 - 18:15 Attendees (voting): Michael Sideris (President), Hermann Drewes (Secretary General), Gerhard Beutler (Immediate Past President), Zuheir Altamimi (President Commission 1), Pieter Visser IAG RESOLUTIONS 1999 where is the carrier wavelength of the EDM signal (in micrometre, m) and ng the corresponding group refractive index. These closed formulae deviate less than 0.25 ppm from the accurate formulae (see (2) THE INTERNATIONAL ASSOCIATION OF GEODESY: FROM AN IDEAL 2 H. Drewes and J. Ádám: The International Association of Geodesy Figure 1. Eratosthenes’ method of determining the radius of a

spherical Earth.

INTERNATIONAL ASSOCIATION OF GEODESY INTERNATIONAL ASSOCIATION OF GEODESY - TRAVAUX TABLE OF CONTENTS Foreword O.B. Andersen p.IV SECTION I: POSITIONING Report by the President F.K. Brunner p.5 Commissions Comm. X : Global and Regional Geodetic Networks C. Boucher p.9 Special Commisions 150 YEARS OF INTERNATIONAL COOPERATION IN GEODESY Fachbeitrag Torge, 150 Years of International Cooperation in Geodesy 168 zfv 01 1. g. geodesy (Brosche 2001). Zach had been asked in 1802 by the king of Prussia to perform a triangulation of Thuringia, and from this develops the plan of an arc measurement IAG RESOLUTIONS IUGG GENERAL ASSEMBLY, MONTREAL, CANADA IAG Resolutions Adopted by the IAG Council at the XXVII th IUGG General Assembly, Montreal, Canada, July 8-18, 2019 Resolution 1: The International Terrestrial Reference Frame (ITRF) IAG RESOLUTIONS ADOPTED BY THE IAG COUNCIL AT THE XXVI IAG Resolutions Adopted by the IAG Council at the XXVI th IUGG General Assembly, Prague, Czech Republic, June 22 – July 2, 2015. Resolution 1: Definition and Realization of an International Height Reference

System

IAG REPRESENTATIVES TO SCIENTIFIC BODIES IAG Representatives to Scientific Bodies IAG Representatives to the Services • BGI: Urs Marti (Switzerland) • BIPM: Richard Biancale (France) • ICGEM: Riccardo Barzaghi (Italy) • IDEMS: Riccardo Barzaghi (Italy) • IDS: Petr Stepanek (Czech Republic) • IERS: Axel Nothnagel (Germany) • IGETS: Spiros Pagiatakis (Canada) • IGFS: Urs Marti (Switzerland)

RESOL UT/ONS

longitude of major axis of equatorial ellipse kz = ]5 ~ West - gravimetric tidal factor (conventi-onalvalue) S = 1.16 The values of c and G, as well as their standard errors, are taken from the HISTORY OF THE INTERNATIONAL ASSOCIATION OF GEODESY Title: History of the International Association of Geodesy Created Date: Tue Oct 10 10:02:43 2006 SECOND MEETING OF THE NEW IAG EC Minutes of the IAG Council Meeting at the Scientific Assembly 2013. Place: Hotel Dorint Sanssouci, Hall F2, Potsdam, Germany . Time: Tuesday, 3 September 2013, 18:00 – 20:00 IAG RESOLUTIONS 1999 where is the carrier wavelength of the EDM signal (in micrometre, m) and ng the corresponding group refractive index. These closed formulae deviate less than 0.25 ppm from the accurate formulae (see (2) THE INTERNATIONAL ASSOCIATION OF GEODESY: FROM AN IDEAL 2 H. Drewes and J. Ádám: The International Association of Geodesy Figure 1. Eratosthenes’ method of determining the radius of a

spherical Earth.

INTERNATIONAL ASSOCIATION OF GEODESY INTERNATIONAL ASSOCIATION OF GEODESY - TRAVAUX TABLE OF CONTENTS Foreword O.B. Andersen p.IV SECTION I: POSITIONING Report by the President F.K. Brunner p.5 Commissions Comm. X : Global and Regional Geodetic Networks C. Boucher p.9 Special Commisions 150 YEARS OF INTERNATIONAL COOPERATION IN GEODESY Fachbeitrag Torge, 150 Years of International Cooperation in Geodesy 168 zfv 01 1. g. geodesy (Brosche 2001). Zach had been asked in 1802 by the king of Prussia to perform a triangulation of Thuringia, and from this develops the plan of an arc measurement IAG RESOLUTIONS IUGG GENERAL ASSEMBLY, MONTREAL, CANADA IAG Resolutions Adopted by the IAG Council at the XXVII th IUGG General Assembly, Montreal, Canada, July 8-18, 2019 Resolution 1: The International Terrestrial Reference Frame (ITRF) IAG RESOLUTIONS ADOPTED BY THE IAG COUNCIL AT THE XXVI IAG Resolutions Adopted by the IAG Council at the XXVI th IUGG General Assembly, Prague, Czech Republic, June 22 – July 2, 2015. Resolution 1: Definition and Realization of an International Height Reference

System

IAG REPRESENTATIVES TO SCIENTIFIC BODIES IAG Representatives to Scientific Bodies IAG Representatives to the Services • BGI: Urs Marti (Switzerland) • BIPM: Richard Biancale (France) • ICGEM: Riccardo Barzaghi (Italy) • IDEMS: Riccardo Barzaghi (Italy) • IDS: Petr Stepanek (Czech Republic) • IERS: Axel Nothnagel (Germany) • IGETS: Spiros Pagiatakis (Canada) • IGFS: Urs Marti (Switzerland)

RESOL UT/ONS

longitude of major axis of equatorial ellipse kz = ]5 ~ West - gravimetric tidal factor (conventi-onalvalue) S = 1.16 The values of c and G, as well as their standard errors, are taken from the HISTORY OF THE INTERNATIONAL ASSOCIATION OF GEODESY Title: History of the International Association of Geodesy Created Date: Tue Oct 10 10:02:43 2006 SECOND MEETING OF THE NEW IAG EC Minutes of the IAG Council Meeting at the Scientific Assembly 2013. Place: Hotel Dorint Sanssouci, Hall F2, Potsdam, Germany . Time: Tuesday, 3 September 2013, 18:00 – 20:00 INTERNATIONAL ASSOCIATION OF GEODESY INTERNATIONAL ASSOCIATION OF GEODESY Membership Application / Renewal Form Individuals engaged in geodesy, can become individual members of the IAG on application and payment of the IAG RESOLUTIONS ADOPTED BY THE IAG COUNCIL AT THE XXVI IAG Resolutions Adopted by the IAG Council at the XXVI th IUGG General Assembly, Prague, Czech Republic, June 22 – July 2, 2015. Resolution 1: Definition and Realization of an International Height Reference

System

IAG REPRESENTATIVES TO SCIENTIFIC BODIES IAG Representatives to Scientific Bodies IAG Representatives to the Services • BGI: Urs Marti (Switzerland) • BIPM: Richard Biancale (France) • ICGEM: Riccardo Barzaghi (Italy) • IDEMS: Riccardo Barzaghi (Italy) • IDS: Petr Stepanek (Czech Republic) • IERS: Axel Nothnagel (Germany) • IGETS: Spiros Pagiatakis (Canada) • IGFS: Urs Marti (Switzerland) IAG OFFICETRANSLATE THIS PAGE

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THE INTERNATIONAL ASSOCIATION OF GEODESY 1862 TO 1922 The International Association of Geodesy 1862 to 1922: from a regional project to an international organization W. Torge Institut fu¨r Erdmessung, Universita¨t Hannover, Schneiderberg 50, 30167 Hannover, Germany; e-mail: torge@ife.uni-hannover.de; INTERNATIONAL ASSOCIATION OF GEODESY A NOTE ON THE HISTORY OF THE INTERNATIONAL ASSOCIATION OF GEODESY Prof. P.-V. Angus-Leppan, President of I.A.G. The International Association of Geodesy can trace its roots back to the early

BULLETIN GEODESIQUE

THE HISTORY OF THE INTERNATIONAL ASSOCIATION OF GEODESY by J. J. LEVALLOIS, Honorary General Secretary % The early nineteenth century was a time of great progress for the science of

J GEOD (2016) 90

Title: J Geod (2016) 90: Author: Drewes Created Date: 1/25/2017

9:34:22 AM

OFFICE.IAG-AIG.ORG

FOREWORD Ole B. Andersen (IAG Information Editor) Every four years, after every General Assembly, the International Association of Geodesy publishes the Geodesist’s Handbook as

OFFICE.IAG-AIG.ORG

office.iag-aig.org

THE INTERNATIONAL ASSOCIATION OF GEODESY: FROM AN IDEAL 2 H. Drewes and J. Ádám: The International Association of Geodesy Figure 1. Eratosthenes’ method of determining the radius of a

spherical Earth.

IAG RESOLUTIONS 1999 where is the carrier wavelength of the EDM signal (in micrometre, m) and ng the corresponding group refractive index. These closed formulae deviate less than 0.25 ppm from the accurate formulae (see (2) INTERNATIONAL ASSOCIATION OF GEODESY INTERNATIONAL ASSOCIATION OF GEODESY - TRAVAUX TABLE OF CONTENTS Foreword O.B. Andersen p.IV SECTION I: POSITIONING Report by the President F.K. Brunner p.5 Commissions Comm. X : Global and Regional Geodetic Networks C. Boucher p.9 Special Commisions 150 YEARS OF INTERNATIONAL COOPERATION IN GEODESY Fachbeitrag Torge, 150 Years of International Cooperation in Geodesy 168 zfv 01 1. g. geodesy (Brosche 2001). Zach had been asked in 1802 by the king of Prussia to perform a triangulation of Thuringia, and from this develops the plan of an arc measurement INTERNATIONAL ASSOCIATION OF GEODESY INTERNATIONAL ASSOCIATION OF GEODESY Membership Application / Renewal Form Individuals engaged in geodesy, can become individual members of the IAG on application and payment of the IAG RESOLUTIONS IUGG GENERAL ASSEMBLY, MONTREAL, CANADA IAG Resolutions Adopted by the IAG Council at the XXVII th IUGG General Assembly, Montreal, Canada, July 8-18, 2019 Resolution 1: The International Terrestrial Reference Frame (ITRF) IAG RESOLUTIONS ADOPTED BY THE IAG COUNCIL AT THE XXVI IAG Resolutions Adopted by the IAG Council at the XXVI th IUGG General Assembly, Prague, Czech Republic, June 22 – July 2, 2015. Resolution 1: Definition and Realization of an International Height Reference

System

IAG REPRESENTATIVES TO SCIENTIFIC BODIES IAG Representatives to Scientific Bodies IAG Representatives to the Services • BGI: Urs Marti (Switzerland) • BIPM: Richard Biancale (France) • ICGEM: Riccardo Barzaghi (Italy) • IDEMS: Riccardo Barzaghi (Italy) • IDS: Petr Stepanek (Czech Republic) • IERS: Axel Nothnagel (Germany) • IGETS: Spiros Pagiatakis (Canada) • IGFS: Urs Marti (Switzerland)

RESOL UT/ONS

longitude of major axis of equatorial ellipse kz = ]5 ~ West - gravimetric tidal factor (conventi-onalvalue) S = 1.16 The values of c and G, as well as their standard errors, are taken from the HISTORY OF THE INTERNATIONAL ASSOCIATION OF GEODESY Title: History of the International Association of Geodesy Created Date: Tue Oct 10 10:02:43 2006 THE INTERNATIONAL ASSOCIATION OF GEODESY: FROM AN IDEAL 2 H. Drewes and J. Ádám: The International Association of Geodesy Figure 1. Eratosthenes’ method of determining the radius of a

spherical Earth.

IAG RESOLUTIONS 1999 where is the carrier wavelength of the EDM signal (in micrometre, m) and ng the corresponding group refractive index. These closed formulae deviate less than 0.25 ppm from the accurate formulae (see (2) INTERNATIONAL ASSOCIATION OF GEODESY INTERNATIONAL ASSOCIATION OF GEODESY - TRAVAUX TABLE OF CONTENTS Foreword O.B. Andersen p.IV SECTION I: POSITIONING Report by the President F.K. Brunner p.5 Commissions Comm. X : Global and Regional Geodetic Networks C. Boucher p.9 Special Commisions 150 YEARS OF INTERNATIONAL COOPERATION IN GEODESY Fachbeitrag Torge, 150 Years of International Cooperation in Geodesy 168 zfv 01 1. g. geodesy (Brosche 2001). Zach had been asked in 1802 by the king of Prussia to perform a triangulation of Thuringia, and from this develops the plan of an arc measurement INTERNATIONAL ASSOCIATION OF GEODESY INTERNATIONAL ASSOCIATION OF GEODESY Membership Application / Renewal Form Individuals engaged in geodesy, can become individual members of the IAG on application and payment of the IAG RESOLUTIONS IUGG GENERAL ASSEMBLY, MONTREAL, CANADA IAG Resolutions Adopted by the IAG Council at the XXVII th IUGG General Assembly, Montreal, Canada, July 8-18, 2019 Resolution 1: The International Terrestrial Reference Frame (ITRF) IAG RESOLUTIONS ADOPTED BY THE IAG COUNCIL AT THE XXVI IAG Resolutions Adopted by the IAG Council at the XXVI th IUGG General Assembly, Prague, Czech Republic, June 22 – July 2, 2015. Resolution 1: Definition and Realization of an International Height Reference

System

IAG REPRESENTATIVES TO SCIENTIFIC BODIES IAG Representatives to Scientific Bodies IAG Representatives to the Services • BGI: Urs Marti (Switzerland) • BIPM: Richard Biancale (France) • ICGEM: Riccardo Barzaghi (Italy) • IDEMS: Riccardo Barzaghi (Italy) • IDS: Petr Stepanek (Czech Republic) • IERS: Axel Nothnagel (Germany) • IGETS: Spiros Pagiatakis (Canada) • IGFS: Urs Marti (Switzerland)

RESOL UT/ONS

longitude of major axis of equatorial ellipse kz = ]5 ~ West - gravimetric tidal factor (conventi-onalvalue) S = 1.16 The values of c and G, as well as their standard errors, are taken from the HISTORY OF THE INTERNATIONAL ASSOCIATION OF GEODESY Title: History of the International Association of Geodesy Created Date: Tue Oct 10 10:02:43 2006 INTERNATIONAL ASSOCIATION OF GEODESY INTERNATIONAL ASSOCIATION OF GEODESY Membership Application / Renewal Form Individuals engaged in geodesy, can become individual members of the IAG on application and payment of the INTERNATIONAL ASSOCIATION OF GEODESY A NOTE ON THE HISTORY OF THE INTERNATIONAL ASSOCIATION OF GEODESY Prof. P.-V. Angus-Leppan, President of I.A.G. The International Association of Geodesy can trace its roots back to the early THE INTERNATIONAL ASSOCIATION OF GEODESY 1862 TO 1922 The International Association of Geodesy 1862 to 1922: from a regional project to an international organization W. Torge Institut fu¨r Erdmessung, Universita¨t Hannover, Schneiderberg 50, 30167 Hannover, Germany; e-mail: torge@ife.uni-hannover.de; IAG OFFICETRANSLATE THIS PAGE

IAG Office

IAG RESOLUTIONS ADOPTED BY THE IAG COUNCIL AT THE XXVI IAG Resolutions Adopted by the IAG Council at the XXVI th IUGG General Assembly, Prague, Czech Republic, June 22 – July 2, 2015. Resolution 1: Definition and Realization of an International Height Reference

System

IAG REPRESENTATIVES TO SCIENTIFIC BODIES IAG Representatives to Scientific Bodies IAG Representatives to the Services • BGI: Urs Marti (Switzerland) • BIPM: Richard Biancale (France) • ICGEM: Riccardo Barzaghi (Italy) • IDEMS: Riccardo Barzaghi (Italy) • IDS: Petr Stepanek (Czech Republic) • IERS: Axel Nothnagel (Germany) • IGETS: Spiros Pagiatakis (Canada) • IGFS: Urs Marti (Switzerland)

BULLETIN GEODESIQUE

THE HISTORY OF THE INTERNATIONAL ASSOCIATION OF GEODESY by J. J. LEVALLOIS, Honorary General Secretary % The early nineteenth century was a time of great progress for the science of

J GEOD (2016) 90

Title: J Geod (2016) 90: Author: Drewes Created Date: 1/25/2017

9:34:22 AM

OFFICE.IAG-AIG.ORG

FOREWORD Ole B. Andersen (IAG Information Editor) Every four years, after every General Assembly, the International Association of Geodesy publishes the Geodesist’s Handbook as IAG SCIENTIFIC ASSEMBLY 2013 FINAL REPORT IAG Scientific Assembly 2013 - Final Report 2 Instead of a preface: Days to remember . The IAG Scientific Assembly 2013 which was held on the occasion of the 150th anniversary of the IAG in co-operation with the Helmholtz Centre Potsdam – GFZ German Research Centre for

Geosciences

IAG RESOLUTIONS 1999 where is the carrier wavelength of the EDM signal (in micrometre, m) and ng the corresponding group refractive index. These closed formulae deviate less than 0.25 ppm from the accurate formulae (see (2) THE INTERNATIONAL ASSOCIATION OF GEODESY: FROM AN IDEAL 2 H. Drewes and J. Ádám: The International Association of Geodesy Figure 1. Eratosthenes’ method of determining the radius of a

spherical Earth.

INTERNATIONAL ASSOCIATION OF GEODESY INTERNATIONAL ASSOCIATION OF GEODESY - TRAVAUX TABLE OF CONTENTS Foreword O.B. Andersen p.IV SECTION I: POSITIONING Report by the President F.K. Brunner p.5 Commissions Comm. X : Global and Regional Geodetic Networks C. Boucher p.9 Special Commisions INTERNATIONAL ASSOCIATION OF GEODESY INTERNATIONAL ASSOCIATION OF GEODESY Membership Application / Renewal Form Individuals engaged in geodesy, can become individual members of the IAG on application and payment of the THE INTERNATIONAL ASSOCIATION OF GEODESY 1862 TO 1922 The International Association of Geodesy 1862 to 1922: from a regional project to an international organization W. Torge Institut fu¨r Erdmessung, Universita¨t Hannover, Schneiderberg 50, 30167 Hannover, Germany; e-mail: torge@ife.uni-hannover.de; 150 YEARS OF INTERNATIONAL COOPERATION IN GEODESY Fachbeitrag Torge, 150 Years of International Cooperation in Geodesy 168 zfv 01 1. g. geodesy (Brosche 2001). Zach had been asked in 1802 by the king of Prussia to perform a triangulation of Thuringia, and from this develops the plan of an arc measurement IAG REPRESENTATIVES TO SCIENTIFIC BODIES IAG Representatives to Scientific Bodies IAG Representatives to the Services • BGI: Urs Marti (Switzerland) • BIPM: Richard Biancale (France) • ICGEM: Riccardo Barzaghi (Italy) • IDEMS: Riccardo Barzaghi (Italy) • IDS: Petr Stepanek (Czech Republic) • IERS: Axel Nothnagel (Germany) • IGETS: Spiros Pagiatakis (Canada) • IGFS: Urs Marti (Switzerland) 675 PAST OFFICERS OF THE INTERNATIONAL ASSOCIATION OF 678 In the years 1983 – 1984 Gerhard Beutler was a research assistant at the University of New Brunswick (UNB) in Fredericton, Canada, where he gained first experience in SECOND MEETING OF THE NEW IAG EC Minutes of the IAG Council Meeting at the Scientific Assembly 2013. Place: Hotel Dorint Sanssouci, Hall F2, Potsdam, Germany . Time: Tuesday, 3 September 2013, 18:00 – 20:00 SUMMARY OF THE SECOND MEETING OF THE IAG EXECUTIVE - 1 - Summary of the Second Meeting of the IAG Executive Committee 2007 – 2011 Place: Hotel Westin, 50 Third Street, San Francisco, California 94103, USA Time: Saturday, 8 December 2007, 10:00 - 18:15 Attendees (voting): Michael Sideris (President), Hermann Drewes (Secretary General), Gerhard Beutler (Immediate Past President), Zuheir Altamimi (President Commission 1), Pieter Visser IAG RESOLUTIONS 1999 where is the carrier wavelength of the EDM signal (in micrometre, m) and ng the corresponding group refractive index. These closed formulae deviate less than 0.25 ppm from the accurate formulae (see (2) THE INTERNATIONAL ASSOCIATION OF GEODESY: FROM AN IDEAL 2 H. Drewes and J. Ádám: The International Association of Geodesy Figure 1. Eratosthenes’ method of determining the radius of a

spherical Earth.

INTERNATIONAL ASSOCIATION OF GEODESY INTERNATIONAL ASSOCIATION OF GEODESY - TRAVAUX TABLE OF CONTENTS Foreword O.B. Andersen p.IV SECTION I: POSITIONING Report by the President F.K. Brunner p.5 Commissions Comm. X : Global and Regional Geodetic Networks C. Boucher p.9 Special Commisions INTERNATIONAL ASSOCIATION OF GEODESY INTERNATIONAL ASSOCIATION OF GEODESY Membership Application / Renewal Form Individuals engaged in geodesy, can become individual members of the IAG on application and payment of the THE INTERNATIONAL ASSOCIATION OF GEODESY 1862 TO 1922 The International Association of Geodesy 1862 to 1922: from a regional project to an international organization W. Torge Institut fu¨r Erdmessung, Universita¨t Hannover, Schneiderberg 50, 30167 Hannover, Germany; e-mail: torge@ife.uni-hannover.de; 150 YEARS OF INTERNATIONAL COOPERATION IN GEODESY Fachbeitrag Torge, 150 Years of International Cooperation in Geodesy 168 zfv 01 1. g. geodesy (Brosche 2001). Zach had been asked in 1802 by the king of Prussia to perform a triangulation of Thuringia, and from this develops the plan of an arc measurement IAG REPRESENTATIVES TO SCIENTIFIC BODIES IAG Representatives to Scientific Bodies IAG Representatives to the Services • BGI: Urs Marti (Switzerland) • BIPM: Richard Biancale (France) • ICGEM: Riccardo Barzaghi (Italy) • IDEMS: Riccardo Barzaghi (Italy) • IDS: Petr Stepanek (Czech Republic) • IERS: Axel Nothnagel (Germany) • IGETS: Spiros Pagiatakis (Canada) • IGFS: Urs Marti (Switzerland) 675 PAST OFFICERS OF THE INTERNATIONAL ASSOCIATION OF 678 In the years 1983 – 1984 Gerhard Beutler was a research assistant at the University of New Brunswick (UNB) in Fredericton, Canada, where he gained first experience in SECOND MEETING OF THE NEW IAG EC Minutes of the IAG Council Meeting at the Scientific Assembly 2013. Place: Hotel Dorint Sanssouci, Hall F2, Potsdam, Germany . Time: Tuesday, 3 September 2013, 18:00 – 20:00 SUMMARY OF THE SECOND MEETING OF THE IAG EXECUTIVE - 1 - Summary of the Second Meeting of the IAG Executive Committee 2007 – 2011 Place: Hotel Westin, 50 Third Street, San Francisco, California 94103, USA Time: Saturday, 8 December 2007, 10:00 - 18:15 Attendees (voting): Michael Sideris (President), Hermann Drewes (Secretary General), Gerhard Beutler (Immediate Past President), Zuheir Altamimi (President Commission 1), Pieter Visser 150 YEARS OF INTERNATIONAL COOPERATION IN GEODESY Fachbeitrag Torge, 150 Years of International Cooperation in Geodesy 168 zfv 01 1. g. geodesy (Brosche 2001). Zach had been asked in 1802 by the king of Prussia to perform a triangulation of Thuringia, and from this develops the plan of an arc measurement INTERNATIONAL ASSOCIATION OF GEODESY A NOTE ON THE HISTORY OF THE INTERNATIONAL ASSOCIATION OF GEODESY Prof. P.-V. Angus-Leppan, President of I.A.G. The International Association of Geodesy can trace its roots back to the early IAG REPRESENTATIVES TO SCIENTIFIC BODIES IAG Representatives to Scientific Bodies IAG Representatives to the Services • BGI: Urs Marti (Switzerland) • BIPM: Richard Biancale (France) • ICGEM: Riccardo Barzaghi (Italy) • IDEMS: Riccardo Barzaghi (Italy) • IDS: Petr Stepanek (Czech Republic) • IERS: Axel Nothnagel (Germany) • IGETS: Spiros Pagiatakis (Canada) • IGFS: Urs Marti (Switzerland) IAG RESOLUTIONS IUGG GENERAL ASSEMBLY, MONTREAL, CANADA IAG Resolutions Adopted by the IAG Council at the XXVII th IUGG General Assembly, Montreal, Canada, July 8-18, 2019 Resolution 1: The International Terrestrial Reference Frame (ITRF)

RESOL UT/ONS

longitude of major axis of equatorial ellipse kz = ]5 ~ West - gravimetric tidal factor (conventi-onalvalue) S = 1.16 The values of c and G, as well as their standard errors, are taken from the IAG RETREAT, GUIDING DOCUMENT FOR IAG STRATEGY DOCUMENT IAG Retreat, Guiding document for IAG strategy document April 25-26, 2016 Gerhard Beutler, on behalf of the retreat participants Preamble: Essentials from IAG statutes (Geodesist’s Handbook, 2016) The current structure and mission of the Association, including the creation of GGOS were

J GEOD (2016) 90

Title: J Geod (2016) 90: Author: Drewes Created Date: 1/25/2017

9:34:22 AM

IAG SCIENTIFIC ASSEMBLY 2013 FINAL REPORT IAG Scientific Assembly 2013 - Final Report 2 Instead of a preface: Days to remember . The IAG Scientific Assembly 2013 which was held on the occasion of the 150th anniversary of the IAG in co-operation with the Helmholtz Centre Potsdam – GFZ German Research Centre for

Geosciences

OFFICE.IAG-AIG.ORG

FOREWORD Ole B. Andersen (IAG Information Editor) Every four years, after every General Assembly, the International Association of Geodesy publishes the Geodesist’s Handbook as SUMMARY OF THE FOURTH MEETING OF THE IAG EXECUTIVE Summary of the Fourth Meeting of the IAG Executive Committee 2007 – 2011 Place: Olympic Room, Westin Hotel, 50 Third Street, San Francisco, California 94103, USA Time: Sunday, 14 December, 2008, 15:30 – 16:45 Attendees (voting): M. Sideris (IAG President), C. Rizos (IAG Vice-President), H. Drewes (IAG Secretary General), G. Beutler (Immediate Past President), Z. Altamimi (President International Association of Geodesy a Constituent Association of IUGG

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* Geodetic Data Centers * Educational Institutions * Publication Series * Geoscientific Links NEW IAG ICC ON “GEODESY FOR CLIMATE RESEARCH” TO BENEFIT SOCIETY AND SCIENCE UNITED NATIONS SUBCOMMITTEE ON GEODESY WAS INAUGURATED UN SUBCOMMITTEE ON GEODESY ESTABLISHED NASA, NORWAY TO DEVELOP ARCTIC LASER-RANGING STATION INAUGURATION OF THE ONSALA TWIN TELESCOPES

TOPICS

A WELCOME MESSAGE FROM THE IAG PRESIDENT It is my pleasure to welcome you all, dear visitors of the IAG website, or readers of the IAG Newsletter. It is a great honor for me to serve as IAG President for the period 2019-2023, and to work with the members of the Executive Committee to advance geodesy and our

association.

2019-10-24

NEW IAG ICC ON “GEODESY FOR CLIMATE RESEARCH” During the IUGG General Assembly in Montreal the IAG Executive Committee (EC) established a new IAG Inter-Commission Committee on "Geodesy for Climate Research" (ICCC) to enhance the use of geodetic observations for climate studies. The goal is to establish a systematic and comprehensive approach among the various geodetic communities, but also to establish and foster links to climate

science.

2019-09-30

TO BENEFIT SOCIETY AND SCIENCE The new geodetic Earth observatory built by the Norwegian Mapping Authority (NMA) in Ny-Ålesund, 79 degrees north, was successfully

inaugurated 6 June.

2018-06-27

UNITED NATIONS SUBCOMMITTEE ON GEODESY WAS INAUGURATED "This is certainly a good day for geodesy", says Gary Johnston, one of the two co-chairs of the subcommittee.

2017-11-29

UN SUBCOMMITTEE ON GEODESY ESTABLISHED Last August the United Nations Committee of Experts on Global Geospatial Information Management (UN-GGIM) decided to elevate the Global Geodetic Reference Frame (GGRF) Working Group to a permanent Subcommittee on Geodesy.

2017-09-04

NASA, NORWAY TO DEVELOP ARCTIC LASER-RANGING STATION NASA and the Norwegian Mapping Authority are partnering to develop a state-of-the-art satellite laser ranging station 650 miles from the North Pole that will produce high-precision locations of orbiting satellites, help track changes in the ice sheets and improve the efficiency of marine transportation and agriculture.

2017-08-28

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INTERNATIONAL ASSOCIATION OF GEODESY - NEWSLETTER WELCOME TO THE INTERNATIONAL ASSOCIATION OF GEODESY The International Association of Geodesy (IAG) is a scientific association in the field of geodesy. It promotes scientific cooperation and research in geodesy on a global scale and contributes to it through its various research bodies. It is a constituent association of the International Union of Geodesy and Geophysics (IUGG). IAG has a long and distinguished history that goes back to 1862, the year, in which the "Mitteleuropäische Gradmessung" was established. This organization was formed to promote scientific work in geodesy in Central Europe, following a proposal made a year earlier by J.J. Baeyer (1861). In 1867, the name of the organization was changed to "Europäische Gradmessung", because by then countries from all of Europe had joined the organization. In 1886, the name was changed to "Internationale Erdmessung", emphasizing the need for international cooperation to solve the scientific tasks of geodesy. The French and English translations of this name resulted in the current name "International Association of Geodesy (IAG)". Thus, the IAG as an international scientific organization goes back to 1886 and is one of the oldest international associations of this kind. The Mission of the Association is the advancement of geodesy. IAG implements its mission by furthering geodetic theory through research and teaching, by collecting, analyzing, modelling and interpreting observational data, by stimulating technological development and by providing a consistent representation of the figure, rotation and gravity field of the Earth and planets, as well as their temporal

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