GGOS GB & Bureaus Meetings 2024
Minutes
1 - General Information
Date:
Time:
Venue:
Room:
Meeting Website:
Presentation Slides:

Sunday, April 14, 2024
09:00-16:30 CEST
TU Wien, Wiedener Hauptstraße 8-10, 1040 Vienna (Freihaus)
Seminar room DA green 02A – (2nd floor)
https://ggos.org/event/ggos-governing-board-bureaus-meetings/
https://cloud.ggos.org/index.php/s/WkpApsBJyme275q

2 - Schedule
09:00 – 11:15: GGOS Governing Board meeting (GB members & invitees only):
30 min: General GGOS business report [L. Sánchez, B. Miyahara, B. Soja and contributions from H.
Kutterer, T. Melbourne and M. Schmidt]
30 min: Coordination Office report [M. Sehnal, A. Craddock, K. Elger]
30 min: Implementation Plan and key ongoing activities [L. Sánchez]
15 min: Discussion – Any other Business [All]15 min: Coffee break
11:30 – 12:15: GGOS Bureau of Products and Standards BPS meeting (open for public):
15 min: BPS introduction and report [D. Angermann]
15 min: Advances in the definition of the Essential Geodetic Variables [D. Angermann]
15 min: Discussion [All]11:45-13:00: Lunch Break
13:00 – 16:30: GGOS Bureau of Networks and Observations BNO meeting (open for public):• Role of the Bureau[José Rodríguez, Martin Lidberg, Mike Pearlman]• Standing Committee Reportso PLATO[Alexander Kehm]o Missions[C.K. Shum]o Data and Information[Justine Woo]o Metrology of space geodetic infrastructure [Ryan Hippenstiel, Cornelia Eschelbach]Coffee break - 15 Minutes• Services Reportso IGFS[George Vergos]o IVS[Rüdiger Haas]o ILRS[Mike Pearlman]o IGS[Allison Craddock]o IDS[Guilhem Moreaux]o PSMSL[Chanmi Kim]
• Discussion on Other Topics[blue -> virtual participants, black -> in-person]

GGOS GB & Bureaus Meetings 2024
Minutes
3 – Report to the GGOS Governing Board
The main purpose of this meeting was to give an update of recent activities of GGOS and offer time fordiscussions. Main topics included:
New Director of the GGOS Bureau of Networks and Observations (BNO): Michael Pearlman announced
his decision to step down from the position of BNO Director. A call for nominations for hissuccessor was published on 13 December 2023 with a deadline of 26 January 2024. The GGOS
Governing Board considered the nominations and on 15 February 2024 elected José Rodríguez
(Instituto Geográfico Nacional, Yebes Observatory, Spain) and Martin Lidberg (Lantmäteriet,Sweden) as Director and Deputy Director respectively.
GGOS

StrategicPlan
2024–2034:Thenew
GGOS
StrategicPlan(seehttps://zenodo.org/records/10605594) was unanimously approved by the GGOS Governing Board
on 25 January 2024. The IAG Office was informed about this Plan and Daniela/Christina distributed
this document to the IAG EC members by e-mail on 7 February 7.

GGOS Implementation Plan: The GGOS President and the operational components of GGOS
(Coordinating Office, BNO and Bureau of Products and Standards - BPS) are defining action items
to implement the Strategic Plan. The action items are designed to last a maximum of four years
and follow the SMART criteria: Specific, Measurable, Achievable, Relevant, Time-bound. The
general concept for the implementation plan was presented at the GGOS Governing Board
meeting and feedback was collected from the attendees. This feedback will be incorporated in theimplementation plan document. This document will be distributed to the GGOS Governing Boardmembers, who will be asked to provide feedback by late May 2024.
Definition of Essential Geodetic Variables (EGVs): The Chair of the GGOS Committee on EGVs, theDirector of the BPS and the GGOS President have developed a concept for the definition of EGVs
and propose a first draft of a catalogue of EGVs. This catalogue contains 18 EGVs based on 51
geodetic products. A white paper has been prepared for internal review to assess the concept andfeasibility of the proposal. A first review will be carried out by the GGOS Science Panel (between 8April and 15 May), once the feedback from the Science Panel has been integrated into the whitepaper, a second review should be carried out by the GGOS Governing Board (June or July), andonce the feedback from the GGOS Governing Board has been integrated into the white paper, wewill submit it to the IAG Executive Committee members for a new review. Once the concept has
been accepted / approved / endorsed by the IAG Executive Committee, we will launch a
dissemination and consultation exercise with the global geodetic community in order to achieve ageneral consensus.
Update of the GGOS Book: The GGOS book (https://doi.org/10.1007/978-3-642-02687-4) was publishedin 2009, so its content is approximately as it was in 2007. The IAG Strategy Retreat in 2019
identified as an urgent task to update the book through a supplement or a special issue of ajournal. The GGOS Science Panel members initiated a reading of the book on 22 March 2024 toidentify missing topics/updates and to define how much needs to be updated. Based on thisGGOS GB & Bureaus Meetings 2024
Minutesreview, we will call for a pool of contributing authors and decide on the best option to publish theupdate. This activity will take about two years.
Project “Characterisation of the ionised atmosphere in terms of essential variables”: GGOS is leading a
joint initiative between IAG and the International Association of Geomagnetism and Aeronomy(IAGA) to establish a multidisciplinary network of scientists to integrate geodetic and geophysicaltechnologies for comprehensive monitoring of the ionised atmosphere with respect to essential
Earth observation variables. We have prepared and submitted a project to the International Unionof Geodesy and Geophysics (IUGG) Grants Programme 2024 - 2025 to obtain funding to organise athematic meeting in conjunction with the GGOS Days 2024. The IUGG decision on the grant will be
published in early June.
A new GGOS Affiliate: A GGOS Affiliate is a national or regional organisation that coordinates geodetic
activities in that country or region. GGOS Affiliates provide a forum for multi-technique space
geodetic discussions, work to improve the quality of space geodetic observations, and encourage
cooperation between the various agencies in that country or region that own, operate andmaintain the space geodetic infrastructure there. In addition to the existing GGOS Affiliates (GGOS
Japan and GGOS D-A-CH), we received a new proposal from our Spanish and Portuguese
colleagues to establish the GGOS IberAtlantic Affiliate. This proposal was evaluated and approvedby the GGOS Directing Board on 12 April.
GGOS Interaction with the UN Global Geodetic Centre of Excellence (UN-GGCE): GGOS is cooperatingwith the UN-GGCE in different ways: (1) In monthly regular meetings, the GGOS Coordinating
Office and UN-GGCE report and agree on outreach activities. Presently, a joint short video onreference frames is being developed. The basis of this video are the previous videos released byGGOS. (2) The GGOS BPS and BNO are supporting the UN-GGCE activities related to the survey onneeds and challenges of the IAG Services. (3) Various GGOS representatives participated in theSecond Meeting of the UN-GGCE International Advisory Committee and the Fourth Plenary
Meeting of the UN Sub-Committee on Geodesy, 18 – 21 March in Bonn, Germany.
Joint Commission 2, IGFS and GGOS Symposium GGHS2024 (Gravity, Geoid and Height Systems 2024),
Thessaloniki, Greece, September 4 – 6, 2024: For the first time, GGOS is a direct sponsor of aGravity Symposium. In addition to participating in the scientific organising committee, we areplanning to contribute with presentations dedicated to GGOS topics in order to promote GGOS
activities within the gravity field community.
GGOS Topical Meeting on the Atmosphere and GGOS Days 2024, Potsdam, Germany, October 7 – 11,2024: Michael Schmidt (FA GSWR) and Robert Heinkelmann (IERS Analysis Coordinator) proposedto have a GGOS meeting on ionosphere and space weather. After some feedback with GGOS, theproposal is extended to the neutral atmosphere covering the topics of− The GGOS FA on Geodetic Space Weather Research (GSWR)− The Joint Study Group 1: AI for GNSS Remote Sensing of the FA Artificial Intelligence forGeodesy (AI4G)− The potential new GGOS FA on “Combined Tropospheric Products” (with support from IAGServices)− Additional contributions from IAG Commission 4 and study groups of the Inter-Commission
Committee on Theory

GGOS GB & Bureaus Meetings 2024Minutes−The GGOS FA Geohazards Monitoring by evaluating the possibility of improving tsunami early
warning systems based on the analysis of ionospheric perturbations.
The idea was also extended to interact with colleagues from the International Association ofGeomagnetism and Aeronomy (IAGA), in particular− IAGA Interdivisional Commission on Space Weather− IAGA Division II: Aeronomic Phenomena− IAGA Division V: Geomagnetic Observatories, Surveys and Analyses
In the next two weeks the session descriptions of the meeting will finished and the call for participation
will be open.
For more details please see the presentation available at:https://cloud.ggos.org/index.php/s/WkpApsBJyme275q

4 - Participants
GBBPS

BNO

in person

191715virtual

2015

13

total

3932

28

Some of the in-person participants between the GGOS GB and the BPS meeting.

Participants

GBBPS

BNO

Aletha de Wittvvv

GGOS GB & Bureaus Meetings 2024
Minutes
Alexander Kehm
Allison Craddock
Andres Calabia
Andy Matthews
Annette Eicker
Basara Miyahara
Benedikt Soja
C K Shum
Chanmi Kim
Christoph Förste
Christopher Kotsakis
Claudia Tocho
Clément Corude
Cornelia Eschelbach
Daniela Thaller
Derek van WestrumDetlef Angermann
Elisabetta D'Anastasio
Elizabeth Bradshaw
Esther Azcue
George Vergos
Guilhem Moreaux
Haixia Lyu
Helena Ribeiro
Jose Manuel Ferrandiz
José Rodríguez
Julia Azumi Koch
Jürgen Müller
Justine Woo
Karine Le Bail
Kirsten Elger
Krzysztof Sośnica
Laura Sanchez
Lucia McCallum
Luisa Magalhaes
Martin Lidberg
Martin Sehnal
Mike Pearlman
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GGOS GB & Bureaus Meetings 2024
Minutes
Nivaldo Destro
Rebekka Steffen
Rüdiger Haas
Ryan Hippenstiel
Ryan Ruddick
Toshimichi Otsubo
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