Communication and Outreach Branch
of Geodesy and Surveying
University of Technology and Economics
H-1521 Budapest, Hungary
Information Service of the International Association of
President’s Annual Report 2018
Summary of the Seventh Meeting of the
IAG EC 2015-2019
27th IUGG General Assembly, Montreal,
Canada, July 8 – 18, 2019
5th IAG Symposium on
Terrestrial Gravimetry: Static and Mobile Measurements
IAG Sponsored Meetings
International Symposium on Deformation Monitoring (JISDM)
Symposium on Terrestrial Gravimetry: Static and Mobile Measurements
IAG Related Meetings
'Global Navigation Satellite System (GNSS)'
Training School on VLBI for Geodesy and Astrometry
Working Meeting & 20th IVS Analysis Workshop
Satellite Navigation Summit 2019
Workshop "Spacetime Metrology, Clocks and Relativistic Geodesy"
Positioning, Navigation and Timing (PNT) Conference
ESA Living Planet Symposium
International School on “Geoid Modelling, Gravity Inversion and its
Symposium of the Committee on Space Research (COSPAR)
Willi Freeden, M. Zuhair Nashed
(Editors): Handbook of Mathematical Geodesy. Functional Analytic and Potential
The IAG Newsletter is under the
editorial responsibility of the Communication and Outreach Branch (COB)
of the IAG.
It is an open
forum and contributors are welcome to send material (preferably in electronic
form) to the IAG COB (email@example.com). These contributions should complement
information sent by IAG officials or by IAG symposia organizers (reports and
announcements). The IAG Newsletter is published monthly. It is
available in different formats from the IAG new internet site: http://www.iag-aig.org
Newsletter includes several of the following topics:
news from the Bureau
reports of IAG
commissions, special commissions or study groups
VII. fast bibliography
2018 was another busy and successful year
for IAG, and also my last full year of IAG presidency. My 2018 top highlights
the successful launch of the German-American
satellite mission GRACE-FO (Gravity Recovery and Climate Experiment Follow-On)
aboard a SpaceX Falcon 9 rocket from the Vandenberg Air Force Base (California)
on May 22, 2018,
the inauguration of the new twin VLBI telescopes
at Ny-Ålesund, Svalbard, Norway, on June 6th, 2018,
the 42th COSPAR Scientific Assembly
taking place in Pasadena, USA, July 14-22, 2018,
the conference week of UN-GGIM in New York, USA,
during the first days of August, and
two very efficient IAG Executive Committee
meetings, the first one in Vienna, Austria, during the EGU General Assembly on
April 13, 2018 and the second one in Washington D.C., USA, during the AGU Fall
Meeting on December 10, 2018.
During the inauguration of the new twin VLBI
telescopes at Ny-Ålesund, Svalbard, Norway, in June 2018.
In the following, I would like to report
briefly on some of my undertakings as IAG President in 2018.
10 days in July, I travelled through China
and met a sizable number of Chinese colleagues at universities and research
centers (e.g., at Hong Kong Polytechnic University, Shenzhen University, Hi-Target
company in Guangzhou, Wuhan University, National Time Service Center of CAS,
Xi’an). My talks on IAG and GGOS at Chang’an University in Xi’an and at the
International Symposium on Geodesy and Geodynamics (ISGG2018) in Kunming were
received with great interest. At ISGG 2018 I was also invited to give a welcome
address on behalf of IAG.
At the National Time Service Center, Xi'an, July 2018.
With Prof. Chao, Director of Earthquake
Administration, Hubei Province, July 2018.
At the International Symposium on Geodesy and
Geodynamics, Kunming, July 2018.
In the beginning of August, I participated
in the UN-GGIM conference week with several splinter meetings about the GGRF
(Global Geodetic Reference Frame) in New York, USA. On these events, please see
my report in the IAG Newsletter of August 2018 at
Another personal highlight for me was the
participation in the 9th International Workshop on TibXS (Multi-observations
and Interpretations of Tibet, Xinjiang and Siberia), August 6-10, 2018, Zhangye,
Gansu Province, in the Northwest of China, that was dealing with a lot of
topics relevant to IAG.
At the Shenzhen Key Laboratory of Spatial Smart
Sensing and Services, belonging to Shenzhen University, July 2018.
In the first week of October, I
participated in the 2018 GGOS Days, hosted by the Geospatial Information
Authority of Japan (GSI) at its headquarters in Tsukuba, Japan. Once again, the
annual GGOS Days proved to be an essential meeting for further developing GGOS
as a backbone entity of IAG.
In the last week of October, I travelled to
Asia again: In Chingdao I visited Shandong University of Science and
Technology, the University of Petroleum China (UPC), and the First Oceanic
Institute. At the latter two institutions, I had the honour to deliver talks on
IAG and its GGOS in our changing world. I travelled on to Wuhan, where I
gave a talk on Developments in Geodesy from IAG Perspective at the International
Top-Level Forum. In Wuhan, I also participated in the 2018 IGS Workshop
hosted by Wuhan University. My welcome address on behalf of IAG received close
attention. At the International Symposium on Geodesy & GNSS 2018 in Xuzhou,
I gave again a welcome address on behalf of the IAG. My various travels to
China in 2018 were aiming at acknowledging the growing activities and important
role of Chinese geodesy. This fact was also demonstrated by the decision of the
IAG Council to hold the IAG Scientific Assembly 2021 in Beijing, China.
In November, I travelled a last time that
year to Asia and participated in the annual International Symposium on GNSS,
the open forum for international researchers and practitioners especially in
the Asia Pacific region, that took place in Bali, Indonesia, from 21 to 23
November, 2018. At this symposium, GNSS experts from several Asian countries
met with international partners. Studies and new findings about recent natural
hazards in the Indonesian archipelago were of highest interest.
Participants of the GGOS Days on the outside grounds
of the Science Museum of Map and Survey at GSI headquarters, Tsukuba, Japan,
At the 2018 IGS Workshop in Wuhan, China, October
Concerning the IAG strategic planning
process, we had another round of discussion at the two EC meetings in 2018 and
finalized the IAG Strategy Document to be approved by the IAG Council at the
IUGG General Assembly in Montreal in July 2019. Several of the recommendations
and action items postulated in the Strategy Document have already been realized
in the course of the last two years. I am particularly glad to report here that
the EC decided to establish new bodies within the IAG and also as
inter-association entities. These are:
A Planning Group on “Marine Geodesy” to
establish an Inter-commission committee at IUGG2019 in Montreal (Chair: Yuanxi
A Planning Group on “Geodesy for Climate
Research” to establish an Inter-commission committee at IUGG2019 in Montreal
(Chairs: Roland Pail and Annette Eicker),
A Planning Group on “Seismo-Geodesy” to establish
an Inter-commission project at IUGG2019 in Montreal (Chair: tbd),
A Planning Group on “Novel Geodetic Sensors and
Technologies” to establish an IAG project at IUGG2019 in Montreal (Chair:
Everybody interested to participate in one
of these Planning Groups should contact its Chair or the IAG Secretary General
In closing, I would like to thank all
colleagues in the Bureau and Executive Committee of IAG for their support and
collaboration in 2018, and Hermann Drewes and his Assistant Franz Kuglitsch for
their unwavering commitment to the Association.
And one more final remark: I am looking
forward to meet many IAG colleagues during the 27th IUGG General Assembly in
Montréal, Canada, in July and I admit that I am absolutely delighted of the
impressive program set up. Apart from most interesting Union lectures and a
cutting-edge IAG symposia program, there is – as intended by IUGG and its
components – a totally novel variety of inter-Association symposia. In
Montréal, we will have an interdisciplinary approach indeed!
Place: Marriott at Metro Center, Penn Quarter Room,
12th Street NW, Washington DC, USA
Time: Monday, 10 December 2018, 09:00 – 18:00
Attendees (voting): H. Schuh (IAG President), Z. Altamimi (IAG Vice President),
H. Drewes (IAG Secretary General), G. Blewitt (President of Commission 1), R.
Pail (President of Commission 2), M. Santos (President of Commission 4), P.
Novák (President of ICC on Theory), R. Gross (Chair of GGOS), A. Nothnagel
(Representative of the Services), Y. Dang (Member-at-Large), S. Rozsa
(substitute of President of the COB), C. Rizos (Immediate Past President (via
telecom during agenda items 13 and 14)
F. Kuglitsch (IAG Assistant
Secretary General, minute taker), M. Sideris (IAG Past
Guests: J. Kusche (Editor in Chief, Journal of Geodesy), J. Freymueller (Editor in Chief, IAG Symposia Series, during agenda
item 11), G. Johnston (Chair of the IGS Governing Board, during agenda item 7)
Regrets: M. Hashimoto (President of Commission 3), J. Adám (President of the COB), R. Barzaghi, R. Neilan
(Representatives of the Services), C. Pacino (Member-at-Large)
Summary of Agenda Items:
and adoption of agenda
The 7th IAG
EC Meeting in the term 2015-2019 took place on 10 December 2018 on the occasion
of the AGU Fall Meeting 2018 at Marriott at Metro Center, Penn Quarter Room,
775 12th Street NW in Washington DC, USA. The agenda
was distributed previously by e-mail and was unanimously adopted. H. Schuh,
the President of the IAG, welcomed the members of the IAG Executive Committee
(11 out of 16 voting members, 2 non-voting members and 3 guests). The EC
Members approved the minutes of the 6th
IAG EC Meeting in the term 2015-2019, which took place on 13 April 2018 in
of the Commissions
G. Blewitt gave the
presentation about Commission 1 (Reference Frames). He reported
about the work of the four Sub-commissions and the Joint Working Group 2.1
(Relativistic Geodesy). He further reported about the meeting on
Reference Frames for Applications in Geosciences (REFAG), which was organized
during the COSPAR Assembly in July 2018, in Pasadena, CA, USA and summarized
the preparations of Commission 1 for the IUGG General Assembly 2019.
R. Pail gave the
presentation about Commission 2 (Gravity Field). He reported about
the International Symposium on Gravity, Geoid and Height Systems 2 (GGHS),
which was organized in September 2018, in Copenhagen, Denmark, the preparations
for the IUGG General Assembly 2019 and other meetings. He presented a
proposal for a new Joint Working Group (JWG 2.1.2; Unified file formats and
processing software for high-precision gravimetry) and for a new subcomponent
dealing with Geodesy for Climate Research. The EC
Members agreed on establishing a Joint Working Group on “Unified file
formats and processing software for high-precision gravimetry”
On behalf of M.
Hashimoto, R. Gross gave the presentation about Commission 3
(Earth Rotation and Geodynamics). He reported about the work of the five
Sub-commissions. He further reported about the 19th WEGENER
General Assembly, which was organized in September 2018 in Grenoble, France,
the work of the Joint Working Group 3.1 (Theory of Earth Rotation and
Validation), the Joint Working Group 3.2 (Constraining vertical land motion of
tide gauges), and joint inter-association activities with IASPEI and IAVCEI. He
summarized recent developments on establishing an IAG subcomponent “Marine
Geodesy”. H. Drewes suggested writing ToR including the structure for
the new Sub-commission 3.2 (Volcano Geodesy), and to think about possible Study
and Working Groups and members.
M. Santos gave the
presentation about Commission 4 (Positioning and Applications). He
reported about the work of the four Sub-commissions. He further noted
that Sub-commission 4.2 (Geo-spatial Mapping and Geodetic Engineering) has not
submitted a report, however, he confirmed that Sub-commission 4.2 is active.
of the Inter-Commission Committee on Theory
P. Novák gave a
presentation about ICCT. He reported
about the 9th Hotine-Marussi Symposium on Mathematical Geodesy, which was organized
by ICCT in June 2018, in Rome, Italy.
of the Communication and Outreach Branch
S. Rozsa reported
about current COB activities. He highlighted the IAG website, the
IAG newsletter, GIM International, Social Media, and the UN GGIM WG (focus
group on Outreach and Communication). He underlined the need
to get regularly news/input for the IAG website, newsletter and social media.
following the EU General Data Protection Regulation (GDPR). F. Kuglitsch
of (if necessary Planning Groups for) IAG Projects or Inter-commission
Committees: “Marine Geodesy”, “Novel Technologies and Sensors”, “Geodesy for
summarized the proposal on establishing a subcomponent on “Marine Geodesy”.
EC Members agreed on establishing a Planning Group on “Marine Geodesy” with the
aim to establish an Inter-commission Committee at IUGG2019 in Montreal.
Possible committee members should be identified. H. Schuh noted that Heidrun
Kopp is a Professor for Marine Geodesy in Kiel, Germany, who could act as a
possible member of the Planning Group. Y. Dang suggested asking Prof. Y.
Yang from Shanghai, China, to act as a possible Planning Group Chair. If he
agrees, ToR for this Committee should be developed until IUGG2019 and possible
project members should be identified.
R. Pail summarized the proposal on establishing a
subcomponent on “Geodesy for Climate Research”. The EC Members approved the proposal on “Geodesy for Climate Research” as a Planning
Group with the aim to establish an Inter-commission committee at IUGG2019 in
Montreal. R. Pail agreed on setting up an appropriate structure together
with A. Eicker (as Planning Group Chair) and invited the EC Members to
provide ideas for the structure and names for possible members.
H. Schuh summarized the proposal on establishing a
Planning Group on “Novel Geodetic Sensors and Technologies”. He clarified that this Planning Group
should now start to consolidate with the aim to establish an IAG project at
IUGG2019 in Montreal. J. Müller already agreed on taking the lead (as Planning Chair) on this project.
The EC Members discussed the importance of
strengthening Seismo-Geodesy within IAG and concluded that Sub-commission 3.5
(and IASPEI) should do more work in this field. The EC Members agreed on
establishing a Planning Group on “Seismo-Geodesy” with the aim to establish an
Inter-commission project on Seismo-Geodesy at IUGG2019 in Montreal. Possible
committee members should be identified. H. Drewes
noted that the project should consist of a Chair, Vice-Chair and Steering
Committee (including members from all Commissions) to be appointed by the EC
Members. In addition, the project should consist of Working Groups with a
Chair, Vice-Chair and members. The project Chair should follow IAG By-Law 16.
of the Global Geodetic Observing System, GGOS
R. Gross gave a
presentation about the current activities of Global Geodetic Observing
System (GGOS). He reported about the GGOS Structure, the GGOS
Coordinating Office, the GGOS Focus Areas, GGOS Affiliates, the GGOS Bureau of
Products & Standards, DOIs for Geodetic Data, the GGOS 2018 Days in
Tsukuba, Japan, other past and future meetings, and the revised ToR. The EC
Members approved the revised GGOS.
of the Services’ representatives
G. Johnston gave the
first presentation about the current activities of IGS. He reported
about the 2018 IGS Workshop, which was organized in Wuhan, China, the IGS
Multi-GNSS Working Group, the new IGS Working Group on PPP Ambiguity
Resolution, the IGS recommendations to International Laser Ranging Service
(ILRS), the Real Time GNSS Service (RTS), new standards, project preparations
and upcoming events.
On behalf R. Barzaghi,
R. Pail gave the second presentation about the Services. He
reported about recent activities of the following Gravity Field Services:
Gravity Field Service (IGFS),
Gravimetric Bureau (BGI),
Service for the Geoid (ISG),
Geodynamics and Earth Tide Service (IGETS),
Center for Global Earth Models (ICGEM),
DEM Service (IDEMS), and
Combination Service for Time-variable Gravity Field Solutions (COST-G).
A. Nothnagel gave the
third presentation about the Services. He reported about recent
activities of the following Services:
Earth Rotation and Reference Systems Service (IERS),
DORIS Service (IDS),
Laser Ranging Service (ILRS),
VLBI Service for Geodesy and Astrometry (IVS), and
Service for Mean Sea Level (PSMSL).
There was no report available from the
Bureau International des Poids et Mesures (BIPM). H. Drewes noted that
IAG has good contact with BIPM. The new head of the time department is P.
No report was available
from R. Neilan.
Altimetry Service (IAS): Draft Terms of Reference & Call for Proposals
H. Schuh mentioned
that IAS has been inactive since 2015. R. Pail suggested structuring IAS
rather as a Product Center than a Service (comparison with COST-G). H.
Drewes noted that IAS should offer a product if it is re-established as a
Service. R. Gross offered including IAS a Focus Area in GGOS. H.
Schuh suggested asking C.K. Shum and his group to plan the next
steps (e.g., to set up a Planning Group; to set up a call for participation; to
include IAS as a Focus Area in GGOS). H. Drewes agreed on asking C.K.
Shum to take the lead on that and to interact with Sub-commission 2.5.
of the Members-at-Large
Y. Dang gave a
presentation about recent geodetic activities in Asia Surrounding Regions, and
the organization plan for the IAG Scientific Assembly 2021 to be held in
Beijing, China. H. Schuh suggested holding the IAG Scientific Assembly
2021 rather from Monday to Friday than over a weekend (as proposed by Y.
There was no report
available from M. C. Pacino.
on the Journal of Geodesy
J. Kusche gave the
presentation about the Journal of Geodesy. He reported about changes in
the Editorial Board, major numbers and statistics of the Journal of Geodesy,
Special Issues, editorial practices and new policies including the author
contribution statement and data availability statement. The EC Members
discussed the possibilities of digitizing Manuscripta Geodaetica. H. Schuh
invited the EC Members to search for possibilities to digitize Manuscripta
Geodaetica at their institutes.
of the IAG Symposia Series
J. Freymueller gave the
presentation about the IAG Symposia Series. He reported about the status
of recent and active volumes including GGHS 2016, IAG-IASPEI Joint Scientific
Assembly 2017, and the Hotine-Marussi Symposium 2018, recurring problems and
recommendations. H. Schuh clarified that already at the 6th
EC Meeting in Vienna, it was decided that the IAG Symposia Series should become
open access. H. Drewes mentioned that he was in contact with Springer
and noted that open access for a series of up to 200 pages would costs EUR
6,000. Open access for a series of 201-500 pages would cost EUR 14,250. Open
access for a series of 501-1,000 pages would costs EUR 21,600. H. Drewes
mentioned that IAG could cover the costs for open access of the IUGG General
Assembly and IAG Scientific Assembly Series. Z. Altamimi and J.
Freymueller suggested increasing the registration fee for the other
symposia to cover the costs for publishing open access. Participants of the
symposia should be informed about the open access publishing well in advance.
The EC Members agreed on making the future IAG Symposia Series open access
starting at IUGG2019 in Montreal. The head fee should be USD 50. H. Drewes
agreed on informing Springer accordingly.
of the IUGG General Assembly, Montreal, Canada, 8-18 July 2019
H. Drewes mentioned that the scientific program for IUGG
2019 is now complete (see http://iugg2019montreal.com/. He mentioned
that the abstract deadline is on 18 February 2019. H. Schuh encouraged the
EC Members to advertise IUGG2019 whenever possible.
of the IAG Statutes and Bylaws
C. Rizos presented
the report of the Cassinis Committee and the revised IAG Statutes and Bylaws
via telecon. H. Drewes invited the EC Members to read the revised IAG
Statutes and Bylaws and to give further comments. C. Rizos agreed on
implementing final changes to the revised IAG Statutes and Bylaws by the end of
January 2019 and circulating this version among the EC Members. In the middle
of February 2019, the IAG Council Members should be asked to give further
comments on the revised IAG Statutes and Bylaws.
procedure for IAG officers 2019-2023
presented the report of the Nominating Committee. He confirmed that he
has received at least two nominations for each position. H. Drewes
clarified that the EC Members are not directly involved in the nominating
process, which is a task of the Council. H. Schuh
suggested C. Rizos to ask the nominated people whether they have enough
travel support from their institutions when they accept their nomination.
with candidates for IAG Secretary General 2019-2023
H. Schuh welcomed the
two candidates for the IAG Secretary General 2019-2023 and clarified
that the Council will make the final decision about the future IAG Secretary
General at IUGG2019. The EC Members will give a recommendation to the Council
based on the interviews today. H. Schuh summarized the role and tasks of
the IAG Secretary General (as defined by the IAG Bylaws). H. Drewes noted
that the workload of the IAG Secretary General is typically around 2.5 days per
week on average. After interviewing the candidates, the EC Members agreed that
the candidates are well qualified for the position of the IAG Secretary
H. Schuh summarized the IAG Strategy document and noted
that final updates need to be done. He invited the EC Members to add
further suggestions for revision until 7 January 2019. H. Drewes agreed
on finalizing the document. The EC Members agreed that once the Strategy
document is finalized it should be distributed together with the Guiding
document among the Council Members for information.
from IUGG and ICSU
F. Kuglitsch reported about the status of the IUGG Member
Countries, proposed candidates for the IUGG Bureau and Finance Committee
2019-2023, IUGG Awards, preparations and deadlines related to the IUGG General
Assembly 2019 and the Centennial celebrations, and news from the International
Science Council (ISC). H. Schuh invited the EC Members to suggest more candidates for IUGG Awards
with international scientific and professional bodies
H. Drewes discussed
the list of IAG Representatives to Scientific Bodies, which is published at
Gross noted that he is still trying to find a new IAG Representative to
UNOOSA (United Nations Office for Outer Space Affairs) and confirmed that C.
Rizos became the IAG Representative to ICG.
discussed the list of IAG sponsored meetings
F. Kuglitsch noted that IAG has around 220-240 individual
members. Around 170 people are paying members; around 50 people are either
student or lifetime member who do not pay membership fees. He mentioned that
the fee for an IAG individual membership is USD 50 for 1 year or USD 150 for 4
years. H. Drewes urged the EC Members to advertise the IAG student
membership, which is free of charge. H. Schuh and M. Sideris
highlighted the importance of encouraging more young people getting involved in
IAG activities (e.g., Working Groups).
The EC Members
confirmed to organize the next IAG EC Meetings on occasion of the IUGG General
Assembly 2019 in Montreal, Canada, on Monday, 8 July 2019 from 09:00-13:00, and
possibly on 15 or 16 July and on 18 July 2019 from 16:00-19:00.
H. Schuh announced a new table of IAG Service
Contributions by Organizational Categories (https://iag.dgfi.tum.de/fileadmin/IAG-docs/IAG_Service_Contributions_20181210.pdf).
The GGOS Bureau of Networks and Observations collected the information.
thanked the participants for their contributions and closed the session at
Kuglitsch, Assistant Secretary General
Drewes, Secretary General
The International Union of Geodesy and
Geophysics (IUGG) holds its 27th General Assembly from July 8 to 18,
2019 in Montreal, Canada. The general assembly theme is the celebration of the
centennial of the IUGG establishment in Brussels, Belgium, in 1919.
IUGG holds its
General Assemblies every four years. Traditionally, the eight constituent
associations of IUGG (Cryospheric Sciences, IACS; Geodesy, IAG; Geomagnetism
and Aeronomy, IAGA;
Hydrological Sciences, IAHS; Meteorology
and Atmospheric Sciences, IAMAS; Physical Sciences of the Ocean, IAPSO;
Seismology and Physics of the Earth's Interior, IASPEI; and Volcanology and
Chemistry of the Earth's Interior, IAVCEI) arrange their General Assemblies in
parallel with the IUGG. This enables to hold joint inter-association symposia
besides the specific association symposia and a greater involvement in the IUGG
There will be
nine Union Symposia organized by IUGG and each of the associations in
cooperation with the IUGG Commissions (Climatic and Environmental Changes,
CCEC; Mathematical Geophysics, CMG; Geophysical Risk and Sustainability, GRC;
Study of the Earth's Deep Interior, SEDI; Data and Information, UCDI; Planetary
Sciences, UCPS), the IUGG Working Group on History (WGH), and the Global
Geodetic Observing System (GGOS).
- U1 - Achieving
Sustainable Development: The Role for Earth Sciences (IACS, CCEC),
- U2 - Georisk
Reduction: Science, Resources, and Governmental Action (IAVCEI, GRC),
- U3 - Mathematics
of Planet Earth: The Science of Data (IASPEI, CMG),
- U4 - Data-driven
Science for Earth and Space Exploration (IAPSO, UCDI),
- U5 - New
Discoveries in Earth Deep Interior (IAGA, SEDI),
- U6 - Recent
Advances and Discoveries in Planetary Science and Comparative Planetology
- U7 - Centennial
of the International Cooperation in Earth Sciences (IAHS, WGH),
- U8 - Earth and
Space Observations (IAG, GGOS),
- U9 - Celebrating
Early Career Scientists (IUGG).
In addition, there will be nine Union
Lectures given in three special sessions by representatives of the IUGG and
David Grimes (IUGG): Earth Sciences as the
Underlying Pillars to Meet Societal Challenges in the next Century;
Waleed Abdalati (IACS): Exploring and
Understanding Earth from Space: The Power of Perspective;
Kosuke Heki (IAG): No geodesy, no geophysics;
Lisa Tauxe (IAGA): Hunting the magnetic field;
Veena Srinivasan (IAHS): Understanding and
transforming water conflicts in the Anthropocene;
Ed Hawkins (IAMAS): The value of rescuing
millions of lost historical weather observations using volunteer citizen
Karen Kohfeld (IAPSO): The Ocean’s Role in
Atmospheric Carbon Dioxide Changes During Ice Age Cycles;
Vera Schlindwein (IASPEI): Singing seismograms –
harmonic tremor signals in seismological records;
Paolo Papele (IAVCEI): Volcanic giants - what we
know, what we think we know, what we can’t know about cataclysmic super-eruptions.
The joint symposia are always led by an
association with co-conveners from other associations. IAG has the lead of the
following Inter-Association Symposia:
JG01 - Interactions of Solid Earth, Ice Sheets
JG02 - Theory and Methods of Potential Fields;
JG03 - Near-Real Time Monitoring of Regional to
Global Scale Water Mass Changes;
JG04 - Geodesy for Atmospheric and Hydrospheric
JG05 - Remote Sensing and Modelling of the
JG06 - Monitoring Sea Level Changes by Satellite
and In-Situ Measurements;
JG07 - Monitoring, Imaging and Mapping of
JG08 - Earth Systems Literacy: Geophysics
in K-16 Class Rooms, Outreach Projects, and Citizen Science Research Projects;
and IAG is sponsoring (with IAG co-conveners)
the following Inter-Association Symposia led by other associations:
JA01 - Geophysical Constraints on the Earth's
Core and Its Relation to the Mantle;
JA02 - Geophysical Data Assimilation;
JA03 - Geophysical Records of Tectonic and
JA06 - Space Weather Throughout the Solar
System: Bringing Data and Models Together;
JA07 - Geoscience Data Licensing, Production,
Publication, and Citation (IAGA);
JA08 - Probing the Earth’s Lithosphere and Its
Dynamics Using Geophysical Modeling;
JH02 - Climate and Hydrological Services:
Bridging from Science to Practice and Adaptation;
JP01 - Tides of the Oceans, Atmosphere, Solid
Earth, Lakes and Planets;
JS01 – Cryoseismology;
JS02 - Early Warning Systems for Geohazards;
JS03 - Subduction Zone Deformation and
Structure: Tracking the Sea Floor in Motion;
JS04 - Seismo – Geodesy;
JS05 - Probabilistic & Statistical
Approaches in Geosciences;
JS06 - Old Data for New Knowledge: Preservation
and Utilization of Historical Data in the Geosciences;
JS07 - Integrated Geophysical Programs for Earth
JV03 - Strain Localisation and Seismic Hazards.
The IAG specific symposia are the main
issue of the IAG General Assembly:
G01 - Reference Systems and Frames;
G02 - Static Gravity Field and Height Systems;
G03 - Time-variable Gravity Field;
G04 - Earth Rotation and Geodynamics;
G05 - Multi-signal Positioning, Remote Sensing
G06 - Monitoring and Understanding the Dynamic
Earth with Geodetic Observations.
For all details of the symposia
descriptions and the program, please visit the IUGG2019 Homepage (http://iugg2019montreal.com/). The most important deadlines are:
February 18, 2019: Closing of abstract
February 18, 2019: Closing of Grant application
March 30, 2019: Abstract acceptance sent to
April 5, 2019: Early-bird registration closes.
IAG invites all geodesists to participate
in the General Assembly 2019 and to present their work in one of the symposia.
We look forward to seeing you in Montreal!
ASSOCIATION OF GEODESY (IAG)
STATIC AND MOBILE
1-4 October 2019
Saint Petersburg, Russia
The 5th International Association
of Geodesy (IAG) Symposium on Terrestrial Gravimetry: Static and Mobile
Measurements will be held by the State Research Center of the Russian
Federation - Concern Central Scientific and Research Institute Elektropribor,
JSC, on 1-4 October 2019.
International Association of Geodesy (IAG);
State Research Center of the Russian Federation
- Concern Central Scientific and Research Institute Elektropribor, JSC.
With the support of:
International Public Association – Academy of
Navigation and Motion Control (ANMC);
D.I.Mendeleyev Institute for
Journal Gyroscopy and Navigation.
The symposium topics include
instrumentation and methods for absolute and relative static and mobile
measurement of gravity field at all kind of mobile platforms – shipborne,
airborne (airplanes, helicopters, airships), satellites:
absolute ballistic gravimeters (including that
based on the use of cold atoms), relative gravimeters of all types including
instrumentation for terrestrial and satellite
measurement of second derivatives of gravity field potential as
satellite gravity gradiometers like for GOCE
K-Band measurement systems as for GRACE and
spaceborne laser interferometers as for GRACE-FO
new technologies, equipment and materials for
development of all types of gravity measurement instrumentation new methods and
results in the gravity data processing including data combinations from various
gravity measuring systems, unification of the file format for absolute gravity
new results of shipborne, airborne gravity
survey coverage, unified reference frame for shipborne, airborne gravity
new results of measurement of gravity networks
and the coverage of new regions;
metrology issues in the measurement of free fall
acceleration and of the second derivatives of gravity potential, application of
gravity measurement in metrology, gravitational comparisons of absolute
standardization and databases of absolute
measurements of the gravity field;
gravitational experiments including the
measurement of gravitational constant.
The following topics are especially welcome
for presentation at the Symposium:
new technologies and applications of gravity
measurements as planetary absolute and relative gravimetry;
links between satellite and terrestrial or
planetary gravity field measurements;
applications of terrestrial gravimetry in
combination with GNSS/InSAR techniques;
gravimetry application in navigation.
INTERNATIONAL SCIENTIFIC COMMITTEE
Chairman: Academician of the
Russian Academy of Sciences,
Peshekhonov – Russia
Vice-chairman: Dr. Hartmut
Wziontek – Germany
LOCAL ORGANIZING COMMITTEE (Russia)
Chairman: PhD. Alexander
Vice-chairs: Dr. Leonid
All presentations at the Conference will be
held in English or Russian and will be simultaneously interpreted.
State Research Center of the RF
Concern CSRI Elektropribor, JSC
30, Malaya Posadskaya Ul., St. Petersburg,
Tel: +7(812) 499 81 18, +7(812) 499 81 57
Fax: +7(812) 232 33 76
Web-site - http://www.elektropribor.spb.ru/tgsmm2019/eindex
May 15 – 17, 2019, Athens, Greece
May 22 – 24, 2019, Tallinn, Estonia
July 8 – 17, 2019, Montreal, Canada
October 1 – 4, 2019, Saint Petersburg,
March 9, 2019, Delhi, India
March 14-16, 2019, Las Palmas de Gran
March 17-19, 2019, Las Palmas de Gran
March 25-27, 2019, Munich, Germany
March 25-29, 2019, Bern, Switzerland
April 7-12 , 2019, Vienna, Austria
April 8-11 , 2019, Honolulu, Hawaii, USA
April 15-17, 2019, Potsdam, Germany
May 13-17 , 2019, Milan, Italy
July 28 – August 2, 2019, Singapore,
August 12-13, 2019, Prague, Czech
September 9-13, 2019, Gävle, Sweden
November 4-8, 2019, Herzliya, Israel
Willi Freeden, M. Zuhair Nashed (Editors): Handbook of Mathematical Geodesy. Functional
Analytic and Potential Theoretic Methods
Title: Handbook of
Mathematical Geodesy. Functional Analytic and Potential Theoretic Methods
Author: Willi Freeden, M.
Zuhair Nashed (Editors)
Price: € 139.99 (Hardcover),
€ 118.99 (eBook)
Details: 1st edition, XIV,
932 pages 155 illustrations, 76 illustrations in color.
The Handbook of Mathematical Geodesy
belongs to the Series ’Geosystems Mathematics’ with the Series editors W.
Freeden and M. Z. Nashed. It deals with understanding the system Earth and is
driven by the public concern about the future of our planet, its climate and
its environment. ’Geosystems Mathematics’ tries to advance the cooperation
between mathematics and geodisciplines.
The Handbook of
Mathematical Geodesy starts with an Introduction by W. Freeden and then
presents fifteen different contributions, which will be put forward in the
begins his introduction with F. R. Helmerts famous definition that geodesy is
the science that deals with the measurement and the modeling of the Earth,
including its gravity field. W. Freeden states that the goal of the Handbook of
Mathematical Geodesy is twofold: to make the mathematicians aware of the tools,
which geodesists are using for analyzing their measurements at the surface of
the Earth or in space, and make the geodesists conscious of the abstract
methods the mathematicians apply for handling measurements.
contribution ’Gauss as Scientific Mediator Between Mathematics and Geodesy from
the Past to the Present’ with 163 pages was written by Willi Freeden, Thomas
Sonar, and Bertold Witte. The authors begin with taking a look at his life in
the introduction, and it is amazingly what Gauss has accomplished. Then, they
go from the Gaussian circle problem to geosampling, from Gaussian integration
to geocubature, from the Gaussian theorem to geoidal determination. Stokes
determined the geoid, and Molodensky introduced the height anomaly leading to
the telluroid. Gaussian least squares adjustment and the inverse multi-scale
regularization follow with the graphical illustration of the shape of the
Earth, and finally Gaussian geometry and geodetic surveying.
contribution to the Handbook of Mathematical Geodesy ’An Overview on Tools from
Functional Analysis’ with 35 pages was written by Matthias Agustin, Sarah
Eberle, and Martin Grothaus. The authors start with the basic concepts, which
are metric spaces, formed spaces, Banach spaces, and linear operators. They
move on to the function spaces with properties of convolutions, Hausdorff
Measure, and Fourier Transformation. Finally, differential equations, and
reproducing kernel functions are presented.
contribution ’Ill-Posed Problems: Operator Methodologies of Resolution and
Regularization,’ with 114 pages was written by Will Freedmen and M. Zuhair
Nashed. This is a classical topic in the research of mathematical geodesy. The
editors and publishers therefore decided to include this contribution although
its content has been extracted from W. Freeden, M. Z. Nashed, Operator Theory
and Regularization Approaches to Ill-Posed Problem, GEM Int. J. Geomath.,
Springer, 2017. The authors present first the solvability of ill-posed operator
equations with the pseudoinverse, Tikhonov regularization, least squares
problems and generalized inverses, then operator methodologies of resolution,
and reconstruction methods and regularizing filters.
contribution ’Geodetic Observable and Their Mathematical Treatment in
Multiscale Framework’ with 144 pages was written by Will Freeden and Helga
Nutz. The current state of gravity field determination by gravity measurements,
vertical deflections, satellite-to-satellite tracking, and satellite gravity
gradiometry is reviewed first. The geodetically relevant Sobolev spaces, the
pseudodifferential operators and geodetic nomenclature, the reproducing kernel
structures and observational functionals, the ill-posedness of satellite
problems, the geodetically oriented wavelet approximation, the bandlimited
Runge-Walsh multiscale approximation, Meissl schemata are then introduced
together with several illustrations. The Appendix defines geodetic notions and
explains, how they are observed.
contribution ’The Analysis of the Geodetic Boundary Value Problem: State and
Perspectives’ with 31 pages was written by Fernando Sansò. The author
explains in the first three lines of the introduction that the Geodetic
Boundary Value Problem (GBVP) determines the figure of the Earth from as many
as possible measurements on the gravity field and the least possible knowledge
of the geometry. This was acceptable before the space era but is not realistic
anymore, as the Global Positioning System (GPS) or the Global Navigation
Satellite System (GNSS) determines in any point its coordinates. The geometry
could be assumed as known already in 1992, when Koch and Pope proved the
uniqueness and existence of the GBVP using the known surface of the Earth. F.
Sansò continues by moving from the vector to the scalar GBVP, then to
linearizing the scalar GBVP in geometry space, to the analysis of the simple
Molodensky problem, and to the analysis of the linearized scalar GBVP. In the
conclusions he admits that the theory of the fixed GBVP requires much weaker
conditions to obtain a theorem of existence uniqueness.
contribution ’Oblique Stochastic Boundary Value Problem’ with 26 pages was
written by Martin Grothaus and Thomas Raskop. The aim of the contribution is
finding weak solutions to oblique boundary value problems. After citing results
for the existence of the deterministic problem, the relevant domains and
function spaces are introduced, Poincaré inequality as key issue of the inner
problem, fundamental results for the outer problem, and future directions. The
authors conclude that they reached the limit for weak solutions under as weak
assumptions as possible.
contribution ’About the Importance of the Runge-Walsh Concept of Gravitational
Field Determination’ with 44 pages was written by Matthias Augustin, Willi
Freeden, and Helga Nutz. The goal of the contribution is providing the
conceptual setup of the Runge-Walsh theorem so that the geodetic expectation
and the mathematical justification become transparent. Special function systems
are defined, the Runge-Walsh closure theorems, and the Runge-Walsh solution of
the geodetic boundary value problem together with several illustrations. The
authors conclude that the contribution gives constructive realizations of the
Runge-Walsh theorem to solve the boundary value problem.
contribution ’Geomathematical Advances in Satellite Gravity Gradiometry (SGG)’
with 44 pages is written by Willi Freeden, Helga Nutz, and Michael Schreiner.
The Satellite Gravity Gradiometry (SGG) is a tool, from which the fine
structure of the Earth’s gravity field can be expected. The authors deal first
with potential theoretic aspects, followed by the functional analytic
background, SGG as exponentially ill-posed problem, spline inversion,
multiscale inversion, and a tree algorithm based on harmonic spline exact
approximation. Several illustrations are added.
contribution ’Parameter Choices for Fast Harmonic Spline Approximation’ with 35
pages is written by Martin Gutting. Spherical splines have been developed by W.
Freeden and generalized to harmonic splines. After the preliminaries, the
multipole methods for splines are presented, the fast multipole method for
splines with illustrations, and the parameter choice methods for spline
approximation. The author concludes that for highly irregular distribution of
the data the spline approach reaches its limit due to ill-conditioning.
contribution ’Inverse Gravimetry as an Ill-Posed Problem in Mathematical
Geodesy’ with 45 pages is written by Willi Freeden and M. Zuhair Nashed.
Gravimetric measurements are executed by very sensitive instruments, which
determine the variations of the gravity field at the surface of the Earth
caused by the density variations inside. This topic is a research area of
geodesy and geophysics. To work with inverse gravimetry, the Newton volume
integral is presented first, then the ill-posedness of the gravimetry problem,
the mollifier methods, and the reproducing kernel Hilbert space methods.
preceding contribution dealt with the Inverse Gravimetry as an Ill-Posed
Problem, the eleventh presents ’Gravimetry and Exploration’ with 65 pages. It
is written by C. Blick, W. Freeden, and H. Nutz. Starting from gravity,
gravitation, and gravimetry, where the gravity effect of a salt dome is shown,
the surface horizontal/vertical derivatives of the gravity potential are
presented, and the interior gravitational potential and density distribution,
combined with many illustration. The authors conclude that the multiscale
approach, which is presented, breaks up the signal into a waveband signature
with different resolutions.
contribution ’Spherical Harmonics Based Special Function Systems and
Constructive Approximation Methods’ with 67 pages is written by Willi Freeden,
Volker Michel, and Frederic J. Simons. Spherical harmonics are generally used
to represent the gravity field of the Earth. However, there is an increasing
need for modeling local areas. The authors therefore begin with special
function systems on sphere and ball, the spherical uncertainty principle is
then introduced, and constructive approximations on the sphere, accompanied by
many illustrations. The authors conclude that Slepian functions provide a
valuable tool for regionally approximating a signal.
contribution ’Spherical Potential Theory: Tools and Applications’ with 33 pages
is written by Christian Gerhards. Classical potential theory in
three-dimensional space has been described in the preceding contributions. Now,
the sphere does not represent a boundary but an underlying domain on which a
problem is formulated. After the fundamental tools, the boundary value problems
for the Beltrami operator are formulated, then the spherical decompositions and
first-order differential equations, complete function systems, and applications
in geoscience, all chapters with illustrations.
contribution ’Joint Inversion of Multiple Observations’ with 28 pages is
written by Christian Gerhards, Sergiy Pereverzyev Jr., and Pavlo Tkachenko.
Observations containing information about the gravity field of the Earth are
now available based on different physical principles like satellite-to satellite
tracking or satellite gravity gradiometry. For combining these observations,
their physical properties and their locations have to considered. The global
combination of satellite models is being dealt with first. Global combination
of satellite and ground models follow, and then local combination of satellite
and ground models, all chapters with illustrations.
contribution ’On the Non-uniqueness of Gravitational and Magnetic Field Data
Inversion (Survey Article) with 37 pages, is written by Sarah Leweke, Volker
Michel, and Roger Telschov. The inversion of the gravity observations and the
magnetic field data detect hidden structures at the surface of the Earth or its
interior. However, the inversion suffers from a nonuniqueness. The authors
therefore present a generalized approach. They start with preliminaries, then
treat the generalization of gravitational and magnetic field inversion, the
investigation of the homogeneous problem with several illustrations, and the
constraints for the uniqueness of the solution.
The Handbook of
Mathematical Geodesy presents for the mathematicians a wealth of applications
and for the geodesists a solid embedding of the fundamental concepts of
physical geodesy into approximation theory. The book bridges the gap between
the abstract work of the mathematicians and the practically oriented
measurements of the geodesists. With fifteen contributions the book is broadly
planned, and it presents the present state of knowledge. One could have wished
to hear about Monte Carlo methods. They are nowadays more and more applied, for
instance, for determining the covariance matrix of nonlineary transformed
vectors, which saves computing the derivatives. An index of 12 pages
complements the Handbook of Mathematical Geodesy, for which the editors W.
Freeden and M. Z. Nashed have to be congratulated publishing it.