BEGIN:VCALENDAR VERSION:2.0 PRODID:-//geodesy.science - IAG website - ECPv6.16.2//NONSGML v1.0//EN CALSCALE:GREGORIAN METHOD:PUBLISH X-ORIGINAL-URL:https://geodesy.science X-WR-CALDESC:Events for geodesy.science - IAG website REFRESH-INTERVAL;VALUE=DURATION:PT1H X-Robots-Tag:noindex X-PUBLISHED-TTL:PT1H BEGIN:VTIMEZONE TZID:UTC BEGIN:STANDARD TZOFFSETFROM:+0000 TZOFFSETTO:+0000 TZNAME:UTC DTSTART:20250101T000000 END:STANDARD END:VTIMEZONE BEGIN:VTIMEZONE TZID:Europe/Vienna BEGIN:DAYLIGHT TZOFFSETFROM:+0100 TZOFFSETTO:+0200 TZNAME:CEST DTSTART:20250330T010000 END:DAYLIGHT BEGIN:STANDARD TZOFFSETFROM:+0200 TZOFFSETTO:+0100 TZNAME:CET DTSTART:20251026T010000 END:STANDARD BEGIN:DAYLIGHT TZOFFSETFROM:+0100 TZOFFSETTO:+0200 TZNAME:CEST DTSTART:20260329T010000 END:DAYLIGHT BEGIN:STANDARD TZOFFSETFROM:+0200 TZOFFSETTO:+0100 TZNAME:CET DTSTART:20261025T010000 END:STANDARD BEGIN:DAYLIGHT TZOFFSETFROM:+0100 TZOFFSETTO:+0200 TZNAME:CEST DTSTART:20270328T010000 END:DAYLIGHT BEGIN:STANDARD 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DTSTART:20250101T000000 END:STANDARD END:VTIMEZONE BEGIN:VTIMEZONE TZID:Asia/Karachi BEGIN:STANDARD TZOFFSETFROM:+0500 TZOFFSETTO:+0500 TZNAME:PKT DTSTART:20250101T000000 END:STANDARD END:VTIMEZONE BEGIN:VTIMEZONE TZID:Europe/Berlin BEGIN:DAYLIGHT TZOFFSETFROM:+0100 TZOFFSETTO:+0200 TZNAME:CEST DTSTART:20250330T010000 END:DAYLIGHT BEGIN:STANDARD TZOFFSETFROM:+0200 TZOFFSETTO:+0100 TZNAME:CET DTSTART:20251026T010000 END:STANDARD BEGIN:DAYLIGHT TZOFFSETFROM:+0100 TZOFFSETTO:+0200 TZNAME:CEST DTSTART:20260329T010000 END:DAYLIGHT BEGIN:STANDARD TZOFFSETFROM:+0200 TZOFFSETTO:+0100 TZNAME:CET DTSTART:20261025T010000 END:STANDARD BEGIN:DAYLIGHT TZOFFSETFROM:+0100 TZOFFSETTO:+0200 TZNAME:CEST DTSTART:20270328T010000 END:DAYLIGHT BEGIN:STANDARD TZOFFSETFROM:+0200 TZOFFSETTO:+0100 TZNAME:CET DTSTART:20271031T010000 END:STANDARD END:VTIMEZONE BEGIN:VTIMEZONE TZID:Europe/Zagreb BEGIN:DAYLIGHT TZOFFSETFROM:+0100 TZOFFSETTO:+0200 TZNAME:CEST DTSTART:20250330T010000 END:DAYLIGHT BEGIN:STANDARD TZOFFSETFROM:+0200 TZOFFSETTO:+0100 TZNAME:CET DTSTART:20251026T010000 END:STANDARD BEGIN:DAYLIGHT TZOFFSETFROM:+0100 TZOFFSETTO:+0200 TZNAME:CEST DTSTART:20260329T010000 END:DAYLIGHT BEGIN:STANDARD TZOFFSETFROM:+0200 TZOFFSETTO:+0100 TZNAME:CET DTSTART:20261025T010000 END:STANDARD BEGIN:DAYLIGHT TZOFFSETFROM:+0100 TZOFFSETTO:+0200 TZNAME:CEST DTSTART:20270328T010000 END:DAYLIGHT BEGIN:STANDARD TZOFFSETFROM:+0200 TZOFFSETTO:+0100 TZNAME:CET DTSTART:20271031T010000 END:STANDARD END:VTIMEZONE BEGIN:VTIMEZONE TZID:UTC BEGIN:STANDARD TZOFFSETFROM:+0000 TZOFFSETTO:+0000 TZNAME:UTC DTSTART:20250101T000000 END:STANDARD END:VTIMEZONE BEGIN:VTIMEZONE TZID:Europe/Tirane BEGIN:DAYLIGHT TZOFFSETFROM:+0100 TZOFFSETTO:+0200 TZNAME:CEST DTSTART:20250330T010000 END:DAYLIGHT BEGIN:STANDARD TZOFFSETFROM:+0200 TZOFFSETTO:+0100 TZNAME:CET DTSTART:20251026T010000 END:STANDARD BEGIN:DAYLIGHT TZOFFSETFROM:+0100 TZOFFSETTO:+0200 TZNAME:CEST DTSTART:20260329T010000 END:DAYLIGHT BEGIN:STANDARD TZOFFSETFROM:+0200 TZOFFSETTO:+0100 TZNAME:CET DTSTART:20261025T010000 END:STANDARD BEGIN:DAYLIGHT TZOFFSETFROM:+0100 TZOFFSETTO:+0200 TZNAME:CEST DTSTART:20270328T010000 END:DAYLIGHT BEGIN:STANDARD TZOFFSETFROM:+0200 TZOFFSETTO:+0100 TZNAME:CET DTSTART:20271031T010000 END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTART;VALUE=DATE:20260503 DTEND;VALUE=DATE:20260509 DTSTAMP:20260526T214117 CREATED:20250305T081353Z LAST-MODIFIED:20251105T111954Z UID:25703-1777766400-1778284799@geodesy.science SUMMARY:EGU General Assembly 2026 DESCRIPTION:Abstract Submission Deadline: Thursday\, 15 January 2026\, 13:00 CET\nEGU 2026 website: https://www.egu26.eu URL:https://geodesy.science/event/egu-general-assembly-2026/ LOCATION:Vienna\, Austria\, Vienna\, Austria CATEGORIES:EGU ATTACH;FMTTYPE=image/jpeg:https://geodesy.science/wp-content/uploads/EGU26_GeneralAssembly.jpg END:VEVENT BEGIN:VEVENT DTSTART;TZID=Europe/Vienna:20260505T190000 DTEND;TZID=Europe/Vienna:20260505T214500 DTSTAMP:20260526T214117 CREATED:20250711T070656Z LAST-MODIFIED:20260515T060212Z UID:28843-1778007600-1778017500@geodesy.science SUMMARY:IAG Geodesy Reception 2026 DESCRIPTION:The Geodesy Reception 2026 took place on Tuesday\, May 5 (19:00-21:45) during the EGU General Assembly 2026. It was hosted for the third time at BEV (Federal Office of Metrology and Surveying). \n👉 Read the full recap of this event \nRegistration\nRegistration was required\, as capacity was limited to 120 participants. Attendance is only possible with confirmed registration! Access to the building will be granted upon verification at the entrance. Due to high demand and limited availability\, registration was opened in two separate tranches (April 8 and 2) to accommodate participants from different time zones. \nGeodesy Cartoon Competition – Winner Announcement\nAs a special highlight\, the winners of the Geodesy Cartoon Competition were officially announced\, and the top-ranked cartoons were showcased during the event. Read more: https://geodesy.science/cartoon/competition/ \nSponsors\n        \n \n  \n         \n \n  \n\n\nMain Sponsor:\n\nIAG | International Association of Geodesy\n\nFurther Sponsors:\n\nGFZ | Helmholtz Centre for Geosciences (Department 1 – Geodesy)\nEGU Geodesy Division\nDGFI-TUM | Deutsches GeodĂ€tisches Forschungsinstitut (DGFI-TUM) of Technische UniversitĂ€t MĂŒnchen\nETH ZĂŒrich – Space Geodesy\nIGN France | National Institute of Geographic and Forest Information\n\nOrganiser and Event Host:\n\nBEV | Federal Office of Metrology and Surveying\, Austria\nIAG-GGOS (Global Geodetic Observing System) Coordinating Office (CO) URL:https://geodesy.science/event/iag-geodesy-reception-2026/ LOCATION:BEV – Federal Office of Metrology and Surveying\, Schiffamtsgasse 1-3\, Vienna\, 1020\, Austria CATEGORIES:ECS,EGU,GGOS,IAG ATTACH;FMTTYPE=image/jpeg:https://geodesy.science/wp-content/uploads/geodesyReception2025-1-scaled.jpg ORGANIZER;CN="GGOS Coordinating Office":MAILTO:ggos@geodesy.science END:VEVENT BEGIN:VEVENT DTSTART;TZID=UTC:20260512T170000 DTEND;TZID=UTC:20260512T180000 DTSTAMP:20260526T214117 CREATED:20260323T123504Z LAST-MODIFIED:20260323T123504Z UID:34662-1778605200-1778608800@geodesy.science SUMMARY:Talks on GIA Seminar DESCRIPTION:Allie Coonin (Brown University\, Providence\, USA) and Tamara Pico (University of California\, Santa Cruz\, USA) will present: \n“Transient Earth Rheology Temporarily Slows West Antarctic Ice Retreat in Future Climate Projections” \nProjections of sea-level change and Antarctic Ice Sheet (AIS) stability under anthropogenic climate change hinge upon accurately describing physical feedbacks that link ice dynamics (marine and terrestrial) with the gravitational\, rotational and deformational response of the solid Earth to ice and ocean loading changes. The marine-based West Antarctic Ice Sheet (WAIS) is vulnerable to runaway grounding line retreat. However\, the rapid viscoelastic rebound of the bedrock in response to ice retreat has been shown to stabilize its grounding line\, aided by the low-viscosity mantle beneath the WAIS. Such bedrock deformation is typically modelled with idealized Maxwell viscoelasticity\, despite that rock deformation experiments show that additional transient creep mechanisms occur over societally relevant (~decadal-centennial) timescales that are missing from the Maxwell model. We simulate future AIS evolution\, coupled with self-consistent solid Earth deformation and sea level change\, for various emissions scenarios (RCP 2.6\, 4.5\, 8.5)\, incorporating transient deformation. This more complete treatment of solid Earth deformation delays grounding line retreat as compared to Maxwell projections\, with differences of tens of kilometres persisting for decades at Pine Island and Thwaites Glaciers. While transient deformation is unable to prevent the bulk of sea-level rise over the next 500 years\, such considerations are crucial to predict the full Earth system response\, since AIS meltwater flux to the ocean affects the pace of global temperature rise. URL:https://geodesy.science/event/talks-on-gia-seminar-5/ CATEGORIES:Commission 3,IACS ATTACH;FMTTYPE=image/jpeg:https://geodesy.science/wp-content/uploads/AdobeStock_236598424_landscape.jpeg ORGANIZER;CN="Joint IAG-IACS Commission on Cryospheric Deformation (Sub-Commission 3.4)":MAILTO:matthias.willen@tu-dresden.de END:VEVENT BEGIN:VEVENT DTSTART;TZID=Europe/Rome:20260513T160000 DTEND;TZID=Europe/Rome:20260513T160000 DTSTAMP:20260526T214117 CREATED:20260331T041839Z LAST-MODIFIED:20260424T051509Z UID:34873-1778688000-1778688000@geodesy.science SUMMARY:Hydrologic Signature in Geodetic Observations DESCRIPTION:We are pleased to announce our third seminar for our series\, hosted by the International Association of Geodesy (IAG) Working Group 3.1: Hydrologic Signature in Geodetic Observations\, \nPresenter: Christian Massari – Research Institute for Geo-Hydrological Protection\, CNR\, Italy. \nTitle: Hydrologic variability in Europe and beyond as observed by satellites and in situ sensors \nThis seminar will be held on May 13 at 10:00 EDT/ 7:00 PDT/ 16:00 CET/ 23:00 CST. \nFurther details and the link will be posted at a later time. \nGrace Carlson and Carla Braitenberg URL:https://geodesy.science/event/hydrologic-signature-in-geodetic-observations-2/ CATEGORIES:Commission 3 ATTACH;FMTTYPE=image/jpeg:https://geodesy.science/wp-content/uploads/AdobeStock_236598424_landscape.jpeg ORGANIZER;CN="Commission 3- Earth Rotation and Geodynamics. WG 3.1 Hydrologic signature in geodetic observations":MAILTO:berg@units.it END:VEVENT BEGIN:VEVENT DTSTART;TZID=Asia/Tokyo:20260524T000000 DTEND;TZID=Asia/Tokyo:20260529T235900 DTSTAMP:20260526T214117 CREATED:20251021T044115Z LAST-MODIFIED:20251021T132247Z UID:30918-1779580800-1780099140@geodesy.science SUMMARY:JpGU-AGU Joint Meeting 2026 DESCRIPTION:JpGU-AGU Joint Meeting 2026 is the first joint meeting with AGU since 2020. As in recent years\, we plan to hold the meeting in the hybrid format\, mixing on-site (at Makuhari Messe in Chiba City) and online. https://www.jpgu.org/meeting_e2026/news/news20250917_01.html URL:https://geodesy.science/event/jpgu-agu-joint-meeting-2026/ LOCATION:JpGU-AGU Joint Meeting 2026\, Chiba\, Japan CATEGORIES:AGU ATTACH;FMTTYPE=image/jpeg:https://geodesy.science/wp-content/uploads/AdobeStock_236598424_landscape.jpeg END:VEVENT BEGIN:VEVENT DTSTART;VALUE=DATE:20260524 DTEND;VALUE=DATE:20260530 DTSTAMP:20260526T214117 CREATED:20250305T071706Z LAST-MODIFIED:20250305T071706Z UID:25673-1779580800-1780099199@geodesy.science SUMMARY:FIG CONGRESS 2026 DESCRIPTION:FIG and the local organisers are looking forward to welcoming you to Cape Town. \nReserve the dates:  24-29 May 2026 The four congress dates are 25-28 May 2026 and the two General Assembly days 24 and 29 May 2026 and with various pre events primarily on 24 May. \nEvent Category: fig URL:https://geodesy.science/event/fig-congress-2026/ LOCATION:Cape Town\, South Africa\, Cape Town\, South Africa CATEGORIES:FIG ATTACH;FMTTYPE=image/gif:https://geodesy.science/wp-content/uploads/figlogo.gif END:VEVENT BEGIN:VEVENT DTSTART;VALUE=DATE:20260601 DTEND;VALUE=DATE:20260606 DTSTAMP:20260526T214117 CREATED:20250526T030337Z LAST-MODIFIED:20250910T134919Z UID:27957-1780272000-1780703999@geodesy.science SUMMARY:IGS Workshop 2026 DESCRIPTION:Chile – where the crust trembles daily and even a traditional cocktail is nicknamed the “Earthquake” – will become the epicenter of an unprecedented scientific gathering in South America. \nOn behalf of the Local Organizing Committee\, we are pleased to formally announce the International GNSS Service (IGS) Workshop 2026\, which will take place from the 1st to the 5th of June 2026 at the Intercontinental Santiago. \nThe IGS Workshop serves as the premier global forum for advancing GNSS and geodesy. Hosted jointly by the University of Santiago de Chile (USACH) and the Military Geographic Institute (IGM)\, the 2026 edition will bring together leading experts\, researchers\, and practitioners to exchange insights\, showcase technological breakthroughs\, and define the trajectory of global geodetic infrastructure. \nKey Details : \n\nDates : 1-5 June 2026\nVenue : Intercontinental Santiago (Avenida Vitacura 2885\, 7550023 Las Condes\, RegiĂłn Metropolitana\, Chile)\nWebsite : https://www.igs-workshop-2026.com\nGeneral Inquiries : workshop2026@igs.org URL:https://geodesy.science/event/igs-workshop-2026/ LOCATION:InterContinental Hotels Santiago\, Av. Vitacura 2885\, Santiago de Chile\, 7550023\, Las Condes\, Chile CATEGORIES:GGOS,IAG Services,IGS ATTACH;FMTTYPE=image/jpeg:https://geodesy.science/wp-content/uploads/Banner-scaled_Copyright-IGS_2025-05-26.jpg ORGANIZER;CN="IGS":MAILTO:CB@igs.org END:VEVENT BEGIN:VEVENT DTSTART;VALUE=DATE:20260603 DTEND;VALUE=DATE:20260606 DTSTAMP:20260526T214117 CREATED:20251013T094525Z LAST-MODIFIED:20260218T063401Z UID:30718-1780444800-1780703999@geodesy.science SUMMARY:EU-wide Community Workshop on Quantum Gravimetry DESCRIPTION:This in-person workshop is organized with the main objective to obtain feedback by the entire European community. Opinions\, comments and thoughts on EQUIP-G project activities will contribute to shaping key aspects on the future of (terrestrial) gravimetry. This is centered around the main long-term goal to establish a permanent perennial entity of a shared park of quantum gravimeters in Europe. \nThe workshop is addressed to all interested and relevant person from EU policymaker to European companies and geophysical service providers and different communities (geodesy\, quantum sensing\, metrology\, geosciences and defense). We want to underline that the focus area is Europe. \nParticipants will be informed not only about the project structure and goals but about finished\, ongoing and planned activities\, spanning the entire scope of the project. The workshop involves various formats (presentations\, panel discussions\, display area\, break-out activities and discussions). \nJoin\, be active and enjoy this workshop which is organized for all of us! \n\nEvent website and registration: https://events.spacepole.be/event/268/\nProject website: https://www.equip-g.eu/ URL:https://geodesy.science/event/eu-wide-community-workshop-on-quantum-gravimetry/ LOCATION:GFZ Helmholtz Centre for Geosciences\, Telegrafenberg\, Potsdam\, Germany CATEGORIES:Commission 2,Projet QuGe ATTACH;FMTTYPE=image/jpeg:https://geodesy.science/wp-content/uploads/workshop_EQUIP-G_2026.jpg ORGANIZER;CN="EQUIP-G":MAILTO:mreich@gfz.de END:VEVENT BEGIN:VEVENT DTSTART;TZID=Asia/Karachi:20260603T110000 DTEND;TZID=Asia/Karachi:20260603T123000 DTSTAMP:20260526T214117 CREATED:20260521T105705Z LAST-MODIFIED:20260521T105705Z UID:36545-1780484400-1780489800@geodesy.science SUMMARY:Geodesy Day - International Webinar on Geodesy DESCRIPTION:  \n“Every map ever drawn. Every satellite ever launched. Every border ever defined. All rest upon one science
 \nGeodesy”\nAbout the Event\nWhat if the science that holds our modern world together remains largely invisible to those who need it the most? Survey of Pakistan (SoP) is determined to change that. \nOn 3 June 2026\, Survey of Pakistan will proudly observe National Geodesy Day in Pakistan – which will become a permanent observance every year. This event on 3 June is a landmark initiative to bring Geodesy out of the shadows and into the spotlight it deserves. In the spirit of the International Union of Geodesy and Geophysics (IUGG) and the International Association of Geodesy (IAG)\, this international webinar unites brilliant minds from across the globe to celebrate\, advance and reimagine the future of geodetic sciences. \nWhy This Moment Matters?\nWe live in an era of climate change\, rapid urbanization\, satellite navigation and digital mapping – all underpinned by the precision of Geodesy. In Pakistan\, however\, the field continues to face institutional challenges\, including limited academic recognition and the absence of dedicated university level degree programs. National Geodesy Day is a strategic initiative to address these gaps\, stimulate scientific discourse and align national efforts with international geodetic standards and priorities. \nObjectives\n\nPromote awareness of Geodesy in Pakistan and its scientific significance within the framework of IUGG and IAG goals\nFacilitate international exchange of knowledge on modern geodetic methods\, technologies and applications\nStrengthen scientific cooperation between Pakistan and the global geodetic community\nTo promote geodetic education and research programs at the national level\nContribute to the advancement of geodetic sciences at regional and global levels in support of IUGG’s mission\n\nWho Should Attend\nThis webinar is open to all experts\, researchers\, academics\, geospatial professionals and students with an interest in geodesy\, surveying\, remote sensing and related disciplines. \nBe Part of Something Significant\nNational Geodesy Day is not a mere webinar\, it is a meaningful step toward strengthening Pakistan’s engagement with the global geodetic community. We invite international experts\, researchers and professionals to join us\, share expertise and help shape Pakistan’s path towards joining more scientifically connected world. \nTo Join the Session\nPlatform:        Zoom \nJoin Link:       https://us06web.zoom.us/j/88311296173 \nMeeting ID:    883 1129 6173 \n“No registration required. Simply click the link on 3 June 2026 and join the session at 11AM (Pakistan Standard Time)” \nHosted by \nSurvey of Pakistan (SoP)\, National Geospatial Agency of Pakistan \nhttps://geodesy.science/wp-content/uploads/EVENT_POSTER_Copyright-JunaidMemon_2026-05-21_b2c478.pdf \nhttps://geodesy.science/wp-content/uploads/EVENT_POSTER_Copyright-SurveyofPakistan_2026-05-21_e7317a.pdf \nhttps://geodesy.science/wp-content/uploads/EVENT_POSTER_Copyright-SurveyofPakistan_2026-05-21_74f73d.pdf \n  \n  \n  URL:https://geodesy.science/event/geodesy-day-international-webinar-on-geodesy/ CATEGORIES:IAG,IUGG ATTACH;FMTTYPE=image/jpeg:https://geodesy.science/wp-content/uploads/AdobeStock_236598424_landscape.jpeg ORGANIZER;CN="SURVEY OF PAKISTAN":MAILTO:dtc@surveyofpakistan.gov.pk END:VEVENT BEGIN:VEVENT DTSTART;TZID=Europe/Berlin:20260609T160000 DTEND;TZID=Europe/Berlin:20260609T173000 DTSTAMP:20260526T214117 CREATED:20260522T165616Z LAST-MODIFIED:20260522T165616Z UID:36583-1781020800-1781026200@geodesy.science SUMMARY:Colloquium for Prof. Torge and Prof Seeber DESCRIPTION:Honorary colloquium on the occasion of the 95th birthday of Prof. Wolfgang Torge and the 85th birthday of Prof. GĂŒnter Seeber \nThe keynote lecture ” Hochstabile GNSS-Positionierung fĂŒr die quanten-basierte Fluggravimetrie” (Highly stable GNSS positioning for quantum-based flight gravimetry) will be given by Dr. Temmo WĂŒbbena\, GEO++\, Garbsen. \nPlease inform the secretariat of the Institute of Geodesy with Mr. Firat ÖrĂŒ (office@ife.uni-hannover.de\, Tel.: +49-511-762-2795) by June 2\, 2026 if you are attending in person \nLink for online participation: \nhttps://uni-hannover.webex.com/uni-hannover/j.php?MTID=me6187484076042c7737867ebab742d60 \nThe event will be held mainly in German. However\, it is planned to implement simultaneous translation with subtitles. URL:https://geodesy.science/event/colloquium-torge-seeber/ LOCATION:Leibniz University Hannover\, Geodetic Institute\, Room A104\, Nienburger Str. 1\, Hannover\, 30167\, Germany CATEGORIES:IAG ATTACH;FMTTYPE=image/jpeg:https://geodesy.science/wp-content/uploads/Torge-Seeber2021_Copyright-JurgenMuller_2026-05-22_21c6a8.jpg ORGANIZER;CN="Institute of Geodesy":MAILTO:mueller@ife.uni-hannover.de END:VEVENT BEGIN:VEVENT DTSTART;TZID=UTC:20260611T150000 DTEND;TZID=UTC:20260611T160000 DTSTAMP:20260526T214117 CREATED:20260424T132633Z LAST-MODIFIED:20260424T132633Z UID:35665-1781190000-1781193600@geodesy.science SUMMARY:Talks on GIA Seminar DESCRIPTION:Achraf Koulali (Newcastle University\, UK) and Matt King (University of Tasmania\, Australia) will present: \n“Sensitivity of Antarctic GPS time series to varying surface mass balance loads\, and implications for estimates of Glacial Isostatic Adjustment” \nAntarctic Global Positioning System (GPS) vertical time series exhibit non-linear signals across a wide range of temporal scales\, complicating the interpretation of long-term deformation associated with Glacial Isostatic Adjustment (GIA). One important contributor to these non-linearities is the short-term elastic response of the solid Earth to contemporaneous surface mass balance (SMB) variability. During the first part of this talk\, we will show analysis results of GPS vertical displacement time series from the Transantarctic Mountains (TAM) to quantify the impact of SMB-driven loading on observed crustal motion. SMBL-induced deformation is found to introduce multiyear apparent changes in vertical velocities. After correcting for SMB loading\, most GPS sites exhibit near-zero uplift rates\, with a median velocity of 0.67 mm/yr\, substantially lower than predicted by forward GIA models. We will then discuss these results within the wider context of Antarctica to show the critical role of SMB loading variability in interpreting GPS observations more widely\, with implications for estimates of present-day Antarctic ice mass change. As a second case study\, we will discuss the sensitivity of GPS velocities to SMB variability in a critical sector of East Antarctica\, including in the Denman-Totten glacier region\, suggesting that bedrock motion in that region is broadly of subsidence rather than uplift in contrast to GIA models. Finally\, we will show that modelled SMB variability can be compared with GPS elastic displacements across Antarctica\, as a new form of SMB model validation. URL:https://geodesy.science/event/talks-on-gia-seminar-6/ CATEGORIES:Commission 3,IACS ATTACH;FMTTYPE=image/jpeg:https://geodesy.science/wp-content/uploads/AdobeStock_236598424_landscape.jpeg ORGANIZER;CN="Joint IAG-IACS Commission on Cryospheric Deformation (Sub-Commission 3.4)":MAILTO:matthias.willen@tu-dresden.de END:VEVENT BEGIN:VEVENT DTSTART;VALUE=DATE:20260616 DTEND;VALUE=DATE:20260620 DTSTAMP:20260526T214117 CREATED:20260312T075546Z LAST-MODIFIED:20260312T075546Z UID:34152-1781568000-1781913599@geodesy.science SUMMARY:12 Spanish-Portuguese Assembly of Geodesy & Geophysics DESCRIPTION:The Spanish-Portuguese Assembly of Geodesy and Geophysics\, which held its first meeting in AlmerĂ­a in 1998\, began meeting every two years\, alternating between the two countries responsible\, Spain and Portugal. Over the course of its sessions\, it has established itself as a research forum in the fields of Geodesy\, Seismology\, Meteorology\, Geomagnetism\, Hydrology\, Oceanography\, Volcanology\, Applied Geophysics\, and Cryospheric Sciences\, as well as a place for meeting and scientific exchange between Spanish and Portuguese researchers through the presentation and discussion of papers in these fields. The COVID-19 period marked the largest gap in the established periodicity\, which we now wish to resume. Thus\, two years after the last meeting\, which took place in Évora in 2024\, the 2026 meeting will be held in Spain. Next June\, from the 16th to the 19th\, Universidad PolitĂ©cnica de Madrid and its Higher Technical School of Topography\, Geodesy\, and Cartography will host the 12th Spanish-Portuguese Assembly of Geodesy and Geophysics. URL:https://geodesy.science/event/12-spanish-portuguese-assembly-of-geodesy-geophysics/ LOCATION:ETSI TopografĂ­a\, Geodesia y CartografĂ­a\, Mercator Avenue\, Madrid\, 28031\, Spain CATEGORIES:GGOS,IACS,IAGA,IAHS,IAMAS,IAPSO,IASPEI,IAVCEI,📚 Education & Training ATTACH;FMTTYPE=image/jpeg:https://geodesy.science/wp-content/uploads/ahpgg_2026.jpg ORGANIZER;CN="CEGG - Comision Espa%C3%B1ola de Geodesia y Geofisica and Politechnical University of Madrid":MAILTO:ahpgg2026@topografia.upm.es END:VEVENT BEGIN:VEVENT DTSTART;VALUE=DATE:20260623 DTEND;VALUE=DATE:20260626 DTSTAMP:20260526T214117 CREATED:20251118T103103Z LAST-MODIFIED:20260209T094529Z UID:31854-1782172800-1782431999@geodesy.science SUMMARY:EUREF Symposium 2026 DESCRIPTION:EUREF is the International Association of Geodesy (IAG) Reference Frame Sub-Commission for Europe. The EUREF Symposium has been organized since 1990 and the scope of the symposium covers EUREF activities\, such as the realisation\, maintenance\, and usage of ETRS89\, EVRS and the EUREF Permanent Network. \nMore Info – Event Website: https://euref2026.sciencesconf.org/ \n  URL:https://geodesy.science/event/euref-symposium-2026/ LOCATION:ENSA Paris-Val de Seine\, 3/15\, quai Panhard et Levassore\, Paris\, 75013\, France CATEGORIES:Commission 1 ATTACH;FMTTYPE=image/jpeg:https://geodesy.science/wp-content/uploads/EUREF-Symposium2026.jpg END:VEVENT BEGIN:VEVENT DTSTART;VALUE=DATE:20260623 DTEND;VALUE=DATE:20260626 DTSTAMP:20260526T214117 CREATED:20260225T055525Z LAST-MODIFIED:20260225T055525Z UID:33941-1782172800-1782431999@geodesy.science SUMMARY:IDS Workshop 2026 DESCRIPTION:The 2026 IDS Workshop will take place in Wiesbaden\, Germany\, from 23 to 25 June 2026\, in conjunction with 2026 OSTST meeting. The event is organized by Eumetsat\, Copernicus and CNES. \nThe workshop will highlight recent developments and the current status of scientific results based on DORIS data. It will also provide a forum for discussion and coordination of future activities within the IDS community. URL:https://geodesy.science/event/ids-workshop-2026-2/ LOCATION:RheinMain CongressCenter\, CLS\, Wiesbaden\, 31520\, Germany CATEGORIES:IDS ATTACH;FMTTYPE=image/jpeg:https://geodesy.science/wp-content/uploads/csm_OSTST2026_webbanner_1cc96386e7_Copyright-IDS_2026-02-24_21ba6d.jpg ORGANIZER;CN="IDS Central Bureau":MAILTO:ids.central.bureau@groupcls.com END:VEVENT BEGIN:VEVENT DTSTART;VALUE=DATE:20260701 DTEND;VALUE=DATE:20260704 DTSTAMP:20260526T214117 CREATED:20260122T083045Z LAST-MODIFIED:20260122T083045Z UID:32764-1782864000-1783123199@geodesy.science SUMMARY:ICERS 2026 DESCRIPTION:The University of Zagreb – Faculty of Geodesy is organizing the 2nd International Conference of Environmental Remote Sensing and GIS (ICERS) from July 1-3\, 2026\, in Zagreb\, Croatia. ICERS serves as a unique meeting point for sharing the latest advancements and applied solutions in the fields of remote sensing and GIS\, offering fresh perspectives on addressing complex environmental challenges. Special emphasis will be placed on geospatial solutions for climate change\, sustainable development\, and effective resource management. We invite you to engage in dynamic discussions shaping the future of our planet\, with a particular focus on the transformative power of geospatial data. This conference provides an ideal platform for collaboration\, strengthening partnerships\, and presenting your latest research activities and projects at the global level. \n\n\n\n\n\n\nConference deadlines: \n\n1st February 2026 – Abstract submission\n1st April 2026 – Full paper submission (up to 8 pages)\n1st May 2026 – Registration\n1st – 3rd July 2026 – ICERS Conference (Zagreb\, Croatia)\n\nConference topics: \n\nRemote Sensing for Environmental Monitoring\nGIS for Sustainable Development\nDisaster Management and Response\nConservation and Biodiversity\nInnovations in spatial data-acquiring technologies\nMulticriteria decision-making and GIS\nClimate Change mitigation politics\nData interoperability\nArtificial intelligence and big data URL:https://geodesy.science/event/icers-2026/ LOCATION:National and University Library\, Hrvatske bratske zajednice 4\, Zagreb\, 10000\, Croatia CATEGORIES:🌐 Other,📚 Education & Training ATTACH;FMTTYPE=image/jpeg:https://geodesy.science/wp-content/uploads/ICERS_Logo_Copyright-MateoGasparovic_2026-01-21_29ca8a.jpeg ORGANIZER;CN="The University of Zagreb %E2%80%93 Faculty of Geodesy":MAILTO:icers@geof.unizg.hr END:VEVENT BEGIN:VEVENT DTSTART;TZID=UTC:20260708T150000 DTEND;TZID=UTC:20260708T160000 DTSTAMP:20260526T214117 CREATED:20260513T080930Z LAST-MODIFIED:20260513T080930Z UID:36272-1783522800-1783526400@geodesy.science SUMMARY:Talks on GIA Seminar DESCRIPTION:Tao Yuan (University of Colorado\, USA) working with\nShijie Zhong\, Glenn Milne\, Donna dePolo \nwill present \nReconciling inferences of mantle viscosity and late Quaternary ice history – the importance of an asthenosphere and 3-D viscosity \nDeglaciation history models from the last glacial maximum (LGM) and accompanying mantle viscosity structures have been jointly constrained by fitting the paleo-sea level data through glacial isostatic adjustment (GIA) modeling. However\, some GIA-inferred 1-dimensional (1-D) viscosity models\, including the widely used VM5a\, contradict the mantle viscosity structure inferred using other approaches\, such as seismic imaging\, mineral physics and geodynamics. Here we show that GIA models with realistic 3-D mantle viscosity derived from seismic structures with an effective activation energy of 300-400 kJ/mol and a weak asthenosphere fit paleo-sea level data in North America better than several widely used 1-D GIA models. Our results also demonstrate that the inclusion of the asthenosphere and lateral viscosity variations permits a larger range of North American ice sheet reconstructions that produce quality fits to the sea-level data\, including models with substantially greater volume at LGM\, thus identifying a potential solution to balancing the sea level budget during this key climate event. To fit far-field sea level data\, the ice volume at LGM in North America is required to be 10%-20% larger than that in ICE-6G\, if ice models outside North America are unchanged. URL:https://geodesy.science/event/talks-on-gia-seminar-7/ CATEGORIES:Commission 3,IACS ATTACH;FMTTYPE=image/jpeg:https://geodesy.science/wp-content/uploads/AdobeStock_236598424_landscape.jpeg ORGANIZER;CN="Joint IAG-IACS Commission on Cryospheric Deformation (Sub-Commission 3.4)":MAILTO:matthias.willen@tu-dresden.de END:VEVENT BEGIN:VEVENT DTSTART;VALUE=DATE:20260801 DTEND;VALUE=DATE:20260810 DTSTAMP:20260526T214117 CREATED:20250818T150625Z LAST-MODIFIED:20250818T150735Z UID:28996-1785542400-1786319999@geodesy.science SUMMARY:COSPAR 2026 - Scientific Assembly of the Committee on Space Research DESCRIPTION:46th Scientific Assembly of the Committee on Space Research (COSPAR) and Associated Events “COSPAR 2026”\nPlease find more info here: https://cospar2026.org/ \n  URL:https://geodesy.science/event/cospar-2026-scientific-assembly-of-the-committee-on-space-research/ LOCATION:Fortezza da Basso\, Viale Filippo Strozzi 1\, Florence\, Italy CATEGORIES:COSPAR,🌐 Other ATTACH;FMTTYPE=image/jpeg:https://geodesy.science/wp-content/uploads/46th-Scientific-Assembly-COSPAR-2026__1__Copyright-COSPAR_2025-08-18.jpg ORGANIZER;CN="COSPAR":MAILTO:cospar@cosparhq.cnes.fr END:VEVENT BEGIN:VEVENT DTSTART;VALUE=DATE:20260825 DTEND;VALUE=DATE:20260829 DTSTAMP:20260526T214117 CREATED:20260316T113957Z LAST-MODIFIED:20260316T113957Z UID:34297-1787616000-1787961599@geodesy.science SUMMARY:Summer School: satellite-based hydrological data assimilation DESCRIPTION:Geodesy group of Aalborg University is planning to have a summer school at the Geodesy Group\, Aalborg University\, August 25-28 2026. The school will be for four days and focusing on training Early Careers to improve their skill of satellite data processing and hydrological data assimilation. The program will be ~50%-50% on theory and practical sessions. The focus will be on advanced techniques and open challenges in measuring and modeling the water cycle\, as well as integrating satellite-based observations\, including Satellite Gravity (GRACE/GRACE-FO and future missions NGGM/MAGIC)\, Satellite Altimetry (Sentinel and SWOT)\, and Soil Remote Sensing into large-scale hydrological models. Participants will be introduced to ensemble-based sequential Data Assimilation techniques for merging satellite data with models. The school emphasises hands-on learning\, featuring practical exercises in Python\, along with various interactive activities. \nThe school is free of charge\, but a registration process will be followed to select the most relevant audiences. The registration link will be announced soon. URL:https://geodesy.science/event/summer-school-satellite-hydrological-data/ LOCATION:Geodesy group\, Aalborg University\, Rendsburggade 14\, Aalborg\, 9000\, Denmark CATEGORIES:AGU,Commission 2,ECS,EGU,GGOS,IAHS,ICCC,ICGEM,UN (United Nations),📚 Education & Training ATTACH;FMTTYPE=image/jpeg:https://geodesy.science/wp-content/uploads/Summer_School.jpg ORGANIZER;CN="Ehsan Forootan%2C Aalborg University":MAILTO:efo@plan.aau.dk END:VEVENT BEGIN:VEVENT DTSTART;VALUE=DATE:20260831 DTEND;VALUE=DATE:20260904 DTSTAMP:20260526T214117 CREATED:20260410T120413Z LAST-MODIFIED:20260410T120413Z UID:35291-1788134400-1788479999@geodesy.science SUMMARY:Workshop on GNSS Ionosphere (IWGI2026) DESCRIPTION:Welcome to the Workshop on GNSS Ionosphere (IWGI2026) – Remote Sensing Techniques and Applications\nThe “Workshop on GNSS Ionosphere (IWGI2026) – Remote Sensing Techniques and Applications” will take place as in-person format during 31st August – 4th September\, 2026 in Neustrelitz\, Germany. Participants and speakers will only be able to participate onsite at DLR site Neustrelitz. \nThe IWGI2026 will provide a platform for scientists and engineers to communicate and exchange their views on ionospheric observations\, new methods\, retrieval methods\, data fusion\, applications and future challenges. The workshop is open to contributions on latest results and developments in ionosphere reconstruction\, spatial and temporal gradients modelling\, monitoring techniques and prediction methodologies as well as ionospheric scintillation and propagation effects on microwave space-based geodetic techniques (e.g. GNSS\, SLR\, VLBI\, DORIS etc.) and their mitigation using multi-frequency\, multi-sensors observations. Latest results and developments relevant to the use of remote sensing techniques such as GNSS reflectometry for providing all-weather\, high-resolution measurements of ocean winds\, sea-level height\, soil moisture\, and ice/snow thickness are also welcome. \nWe are inviting contributions covering lower atmosphere monitoring\, solar flare effects on the lower ionosphere and detection using VLF\, GNSS signals and radar measurements\, ionospheric effects on GNSS reflectometry retrievals as well as GNSS radio occultation retrievals and climate data records and applications of such records for climate related studies. Space weather impact studies on Earth/Space systems and infrastructures are also welcome. \nAll Study and Working Groups within IAG (International Association of Geodesy) Sub-Commission 4.3: Atmosphere Remote Sensing under Commission 4 “Positioning and applications” (2023 – 2027) are cordially invited to present their work. Eligible applicants (Early Carrier Scientist from low/mid economic countries) may submit their request for travel grants. For more information\, please check IAG website (https://geodesy.science/iag/awards/iag-travel-award/). \nOn behalf of the Organizing Committee\, we are pleased to invite you to attend the Workshop on GNSS Ionosphere (IWGI2026) – Remote Sensing Techniques and Applications. For any questions\, or comments please feel free to contact the Local Organizing Committee (LOC) at DLR\, Neustrelitz. \nWe are looking forward to meeting you at the IWGI2026. \nKind regards\, \n\nDr. M Mainul Hoque (Mainul.Hoque@dlr.de)\nDr. Maximilian Semmling (Maximilian.Semmling@dlr.de)\nDr. Norbert Jakowski (Norbert.Jakowski@dlr.de) URL:https://geodesy.science/event/workshop-on-gnss-ionosphere-iwgi2026/ LOCATION:German Aerospace Center (DLR)\, Kalkhorstweg 53\, Neustrelitz\, 17235\, Germany CATEGORIES:Commission 4 ATTACH;FMTTYPE=image/jpeg:https://geodesy.science/wp-content/uploads/headerImagePath_dlr_1_en.jpg ORGANIZER;CN="German Aerospace Center (DLR)":MAILTO:iwgi2026@dlr.de END:VEVENT BEGIN:VEVENT DTSTART;VALUE=DATE:20260907 DTEND;VALUE=DATE:20260912 DTSTAMP:20260526T214117 CREATED:20260209T135251Z LAST-MODIFIED:20260519T092418Z UID:32962-1788739200-1789171199@geodesy.science SUMMARY:XI Hotine-Marussi Symposium DESCRIPTION:We invite you to the XI Hotine-Marussi Symposium\, which will be held in Genoa\, Italy\, September 7-11\, 2026 under the scientific coordination of the Intercommission Committee on Theory (ICCT) of the International Association of Geodesy (IAG). \nThe main goals of the Symposium are aligned with the objectives of ICCT:\n‱ advances in theoretical geodesy\,\n‱ developments in modelling and data processing in the light of recent advances of geodetic observing systems\n‱ interdisciplinary cooperation between geodesy and other Earth and planetary sciences \nIn particular\, all topics related to activities of the ICCT Study Groups are of interest and submission of related papers are strongly encouraged. Contributions concerning other topics related to possible interactions and mutual benefits between geodetic theory and methodology\, and other initiatives and projects involving Earth and planetary sciences (for example the Group on Earth Observation) are welcome. \nDeadline for abstract submission is May 17 May 31\, 2026 (11:59:59pm CEST). Upon abstract submission\, the corresponding author will have to indicate the preference for oral or poster presentation. Each abstract will be reviewed by the Scientific Committee and decision on acceptance will be notified by e-mail to the corresponding author by June 30\, 2026.\nAccepted papers will be published by Springer in an Open Access volume of the official IAG series. \nEarly-bird registration: 07/07/2026 \nThe Symposium will be held in the center of Genoa (Liguria Region\, Italy)\, which is easily accessible by several bus routes and by the underground. The scientific programme will be complemented with a social one\, including a tour and a social dinner. An Early Career Scientist event will be organized too. \nWe look forward to warmly welcome you in Genoa! \nMattia Crespi\, Amir Khodabandeh\, Pavel NovĂĄk\, Riccardo Barzaghi\nDomenico Sguerso\, Bianca Federici\, Ilaria Ferrando\, Paola Salmona \nMore Info – Event Website: https://hotinemarussi2026.unige.it/ URL:https://geodesy.science/event/xi-hotine-marussi-symposium/ LOCATION:Genoa\, Balderichgasse 31/24\, Genoa\, 1170\, Italy CATEGORIES:ICCT ATTACH;FMTTYPE=image/jpeg:https://geodesy.science/wp-content/uploads/genova_tagliata_3_Copyright-ICCT_2026-02-09_33dfb9.jpg END:VEVENT BEGIN:VEVENT DTSTART;VALUE=DATE:20260914 DTEND;VALUE=DATE:20260919 DTSTAMP:20260526T214117 CREATED:20260224T113135Z LAST-MODIFIED:20260224T113135Z UID:33435-1789344000-1789775999@geodesy.science SUMMARY:17th European VLBI Network Symposium DESCRIPTION:The European VLBI Network Symposium is the main forum for discussion of the latest Very Long Baseline Interferometry scientific results and technical and technological developments within the EVN member countries. The purpose of this biennal meeting is to bring together the global VLBI community to exchange knowledge\, share new research\, discuss advancements in VLBI techniques\, and foster a collaborative community in radio astronomy. This year\, for the first time\, there will be a dedicated session on geodetic and astrometric VLBI. URL:https://geodesy.science/event/17th-european-vlbi-network-symposium/ LOCATION:The University of Manchester\, Manchester\, United Kingdom CATEGORIES:IAU,IVS ATTACH;FMTTYPE=image/png:https://geodesy.science/wp-content/uploads/EVN2026-WebBanner_Copyright-LOCEVN2026_2026-02-23_2f3e89-e1771932627221.png ORGANIZER;CN="European VLBI Network":MAILTO:evn-symposium.2026@manchester.ac.uk END:VEVENT BEGIN:VEVENT DTSTART;TZID=UTC:20260914T120000 DTEND;TZID=UTC:20260916T130000 DTSTAMP:20260526T214117 CREATED:20260127T071606Z LAST-MODIFIED:20260209T135359Z UID:32840-1789387200-1789563600@geodesy.science SUMMARY:ITGRF Workshop 2026 DESCRIPTION:The 2026 ITGRF workshop will provide an excellent opportunity to advance the International Terrestrial Gravity Reference Frame and to discuss current activities within the IAG Joint Working Group 2.1.1. The workshop will focus on ensuring the compatibility of absolute gravity observations\, establishing and maintaining gravity reference stations\, and developing a modern\, user-oriented infrastructure for end-users. It will bring together experts in absolute gravimetry\, gravity monitoring\, and reference frame realization to exchange knowledge and coordinate future work. \nThe International Terrestrial Gravity Reference Frame (ITGRF) is developed by the International Association of Geodesy and is based on accurate observations from absolute gravimeters and continuous gravity monitoring at reference stations. Its primary objective is to replace the obsolete International Gravity Reference Standardization Network (IGSN71) defined in the early 1970s with a modern\, consistent global gravity reference. \nThe workshop will be hosted in 2026 by the British Geological Survey’s Space Geodesy Facility at Herstmonceux Castle in East Sussex\, a site with a strong scientific heritage as the former home of the Royal Greenwich Observatory. \n\nMore info here [PDF] \n\nBooking/registration information is not yet available and will follow soon. URL:https://geodesy.science/event/second-itgrf-workshop/ LOCATION:Herstmonceux Castle\, Hailsham\, East Sussex\, United Kingdom\, CATEGORIES:BGI,Commission 2,IGFS ATTACH;FMTTYPE=image/png:https://geodesy.science/wp-content/uploads/ITGRF_workshop_2026-1-e1769498104146.png END:VEVENT BEGIN:VEVENT DTSTART;VALUE=DATE:20260915 DTEND;VALUE=DATE:20260917 DTSTAMP:20260526T214117 CREATED:20251016T042446Z LAST-MODIFIED:20260317T065349Z UID:30777-1789430400-1789603199@geodesy.science SUMMARY:VieVS Days 2026 DESCRIPTION:The two-day workshop will cover the basics of analysing VLBI geodetic data\, simulations and scheduling. Participants will have the opportunity to apply their learning through hands-on exercises utilising VieVS & VieSched++. \nThe workshop is aimed at PhD students and newcomers to the field of geodetic VLBI analysis. The registration is offered on a first-come\, first-served basis. The number of participants is limited. \nMore info and registration here: https://vievswiki.geo.tuwien.ac.at/Webinar/VieVSWorkshop2026 \n  URL:https://geodesy.science/event/vievs-days-2026/ LOCATION:TU Wien\, Vienna\, Austria CATEGORIES:IVS,📚 Education & Training ATTACH;FMTTYPE=image/png:https://geodesy.science/wp-content/uploads/vievs_white_Copyright-ViennaCenterforVLBI_2025-10-15_e18edd.png END:VEVENT BEGIN:VEVENT DTSTART;VALUE=DATE:20260915 DTEND;VALUE=DATE:20260918 DTSTAMP:20260526T214117 CREATED:20260429T091336Z LAST-MODIFIED:20260429T091406Z UID:35766-1789430400-1789689599@geodesy.science SUMMARY:Frontiers of Geodetic Science (FroGS) Conference 2026 DESCRIPTION:Frontiers of Geodetic Science (FroGS) is a conference which takes place every year as part of the German INTERGEO\, one of the world’s leading platforms for geodesy\, geoinformation\, and land management. The event provides a forum for discussing current scientific developments and applications in geodesy. We welcome contributions from all areas of geodetic research\, especially from early-career scientists. URL:https://geodesy.science/event/frontiers-of-geodetic-science-frogs-conference/ LOCATION:Messe MĂŒnchen\, Conference Center Nord\, Munich\, Germany CATEGORIES:ECS,IAG,ICCC ATTACH;FMTTYPE=image/png:https://geodesy.science/wp-content/uploads/FroGS-FrontiersGeodeticScience-2026-1.png END:VEVENT BEGIN:VEVENT DTSTART;VALUE=DATE:20260928 DTEND;VALUE=DATE:20261002 DTSTAMP:20260526T214117 CREATED:20250224T061238Z LAST-MODIFIED:20251017T130541Z UID:25562-1790553600-1790899199@geodesy.science SUMMARY:IAG Commission 3 - TIGER Symposium in Geodesy DESCRIPTION:  \n\nWe will be hosting three consecutive meetings in GĂ€vle (Sweden) in autumn 2026. Please join us for: \n\nTracking and Investigating Geodynamics and Earth Rotation – TIGER Symposium in Geodesy (the 1st symposium of the IAG Commission 3 on Earth Rotation and Geodynamics\, in cooperation with the Journees meeting series) – September 28th to October 1st\, 2026\nGGOS Topical Meeting on Geohazards – October 1st and 2nd\, 2026\nGGOS Days 2026 – October 5th to 7th\, 2026\n\nThe meetings will be in a hybrid format. More details (e.g.\, website\, registration\, abstract submission) will be shared soon. We’re looking forward seeing you in autumn 2026! \nSincerely\, Rebekka Steffen (IAG commission 3 president)\, Laura Sanchez (GGOS President)\, Martin Sehnal (GGOS Coordinating Office) URL:https://geodesy.science/event/tiger-symposium-commission3/ LOCATION:GĂ€vle\, Sweden\, GĂ€vle\, Sweden CATEGORIES:Commission 3 ATTACH;FMTTYPE=image/png:https://geodesy.science/wp-content/uploads/tiger_logo_w-text_figure-website-scaled.png END:VEVENT BEGIN:VEVENT DTSTART;TZID=Europe/Vienna:20261002T080000 DTEND;TZID=Europe/Vienna:20261002T150000 DTSTAMP:20260526T214117 CREATED:20260414T053237Z LAST-MODIFIED:20260415T090449Z UID:35380-1790928000-1790953200@geodesy.science SUMMARY:GGOS Topical Meeting on Geohazards DESCRIPTION: URL:https://geodesy.science/event/ggos-topical-meeting-geohazards/ LOCATION:LantmĂ€teriet\, LantmĂ€terigatan 2C\, GĂ€vle\, 802 64\, Sweden CATEGORIES:GGOS ATTACH;FMTTYPE=image/png:https://geodesy.science/wp-content/uploads/GGOS_TM_Geohazards_2026-scaled.png ORGANIZER;CN="GGOS Coordinating Office":MAILTO:co@ggos.org END:VEVENT BEGIN:VEVENT DTSTART;TZID=Europe/Vienna:20261005T083000 DTEND;TZID=Europe/Vienna:20261007T173000 DTSTAMP:20260526T214117 CREATED:20260414T052135Z LAST-MODIFIED:20260414T053707Z UID:35368-1791189000-1791394200@geodesy.science SUMMARY:GGOS Days 2026 DESCRIPTION: URL:https://geodesy.science/event/ggos-days-2026/ LOCATION:LantmĂ€teriet\, LantmĂ€terigatan 2C\, GĂ€vle\, 802 64\, Sweden CATEGORIES:GGOS,IAG Services ATTACH;FMTTYPE=image/png:https://geodesy.science/wp-content/uploads/GGOSDays2026-scaled.png ORGANIZER;CN="GGOS Coordinating Office":MAILTO:co@ggos.org END:VEVENT BEGIN:VEVENT DTSTART;VALUE=DATE:20261007 DTEND;VALUE=DATE:20261010 DTSTAMP:20260526T214117 CREATED:20260423T103027Z LAST-MODIFIED:20260423T103027Z UID:35616-1791331200-1791590399@geodesy.science SUMMARY:ESA 10th International Colloquium on GNSS DESCRIPTION:The topics of the conference include:\no   Time and Frequency Principles and Novel Clock Technologies\no   Scientific Aspects of Positioning and Navigation Applications\no   Reference Frames and Precise Orbit Determination\no   Navigation for Lunar and for Space Applications\no   Scientific Opportunities enabled by GNSS and PNT systems\no   Geodesy\, Geophysics and Earth Sciences\no   Fundamental Physics\no   GNSS Remote Sensing\, Reflectometry and Atmosphere Sounding\no   Optical and Quantum Principles and Technologies for PNT\n\nThe abstract submission has been extended to 8 May\, 2026. The selected papers will be published in Advances in Space Research.\n\nSee the website for details:\nhttps://atpi.eventsair.com/10th-gnss-science-colloquium/ URL:https://geodesy.science/event/esa-10th-international-colloquium-on-gnss/ LOCATION:École de technologie supĂ©rieure (ETS) of Quebec\, Montreal\, Canada CATEGORIES:Commission 1,GGOS,IDS,IERS,IGS,ILRS,IVS ATTACH;FMTTYPE=image/png:https://geodesy.science/wp-content/uploads/7bd4e54f6bbd4e06b82efc5cd1ea9835__1__Copyright-ESA_2026-04-22_efbb15.png ORGANIZER;CN="European Space Agency (ESA)":MAILTO:esaconferencebureau@atpi.com END:VEVENT BEGIN:VEVENT DTSTART;VALUE=DATE:20261012 DTEND;VALUE=DATE:20261017 DTSTAMP:20260526T214117 CREATED:20250908T133915Z LAST-MODIFIED:20250908T133915Z UID:29332-1791763200-1792195199@geodesy.science SUMMARY:Gravity Geoid and Height Systems Symposium (GGHS2026) DESCRIPTION:The Gravity\, Geoid and Height Systems Symposium (GGHS) is a leading international meeting organized under the International Association of Geodesy (IAG). It brings together experts\, researchers\, and students to discuss the latest developments in gravity field modeling\, geoid determination\, height systems\, and their applications in Earth sciences and society. \nThe next edition\, GGHS2026\, will continue this tradition by providing a forum for exchanging ideas\, presenting new research\, and fostering collaboration across the global geodetic community. \n\nThe official website with full details will be available soon. URL:https://geodesy.science/event/gravity-geoid-and-height-systems-symposium-gghs2026/ LOCATION:Indian National Science Academy\, New Delhi\, India CATEGORIES:Commission 2,GGOS,IGFS ATTACH;FMTTYPE=image/jpeg:https://geodesy.science/wp-content/uploads/geoid-c2_edit.jpg ORGANIZER;CN="Dr. Virendra Tiwari":MAILTO:virendra.m.tiwari@gmail.com END:VEVENT BEGIN:VEVENT DTSTART;VALUE=DATE:20261013 DTEND;VALUE=DATE:20261016 DTSTAMP:20260526T214117 CREATED:20260113T112535Z LAST-MODIFIED:20260116T085845Z UID:32647-1791849600-1792108799@geodesy.science SUMMARY:21st Wegener Assembly\, Albania DESCRIPTION:The Institute of Geosciences (IGEO) and joint IAG-IASPEI sub-commission “Seismo-geodesy” are delighted to invite you to the 21st WEGENER Assembly\, which will take place in Tirana\, Albania\, from October 13–15\, 2026. \nWEGENER meetings gather geodesists and geoscientists working in the Mediterranean\, earthquake processes and geodynamics. The WEGENER meeting is supported by International Association of Geodesy (IAG) and the International Association of Seismology and Physics of the Earth’s Interior (IASPEI)\, through Sub-commission 3.5 “Seismo-Geodesy” joint between IAG and IASPEI. \nWhether you are an established researcher\, an early-career scientist\, or a student\, Wegener assembly offers a unique opportunity to exchange ideas\, develop collaborations\, and strengthen our scientific community. \nThe meeting will be hosted by the Institute of Geosciences part of Polytechnic University of Tirana. \nAbstract submission and registration will open February\,2 2026. Early-bird registration will be available until July 15\, 2026. Proposed sessions are: \n1. Motion and deformation of the Mediterranean: from kinematics to dynamics\n2. Plate Boundary and Intraplate Processes from Geodetic Observations\n3. Faults and Earthquake Cycle Processes\n4. Geodesy Contribution to Seismic Hazard Assessment & Mitigation\n5. Surface Processes\, Hydrology\, and Anthropogenic Deformation\n6. Emerging Methods and Infrastructures\n7. Volcano and Volcano-Tectonic Deformation \nBeyond the science\, Tirana offers a lively and welcoming atmosphere\, with a blend of Ottoman\, Italian\, and modern architecture\, a vibrant cafĂ© culture\, and easy access to Albania’s stunning landscapes from the Adriatic coast to the mountains and historical UNESCO World Heritage sites. Its central location and well-connected airport make it a really accessible and attractive destination for colleagues from all over Europe and beyond. \nWe warmly invite you to be part of WEGENER 21st Assembly and to contribute to advancing seismo-geodesy research in the Mediterranean and beyond. URL:https://geodesy.science/event/21st-wegener-assembly-albania/ LOCATION:Polytechnic University of Tirana\, “DĂ«shmorĂ«t e Kombit”\, Square “NĂ«nĂ« Tereza”\, Tirana\, 1001\, Albania CATEGORIES:Commission 3,IASPEI ATTACH;FMTTYPE=image/png:https://geodesy.science/wp-content/uploads/21st-Wegener-Assembly.png ORGANIZER;CN="SC 3.5 Seismo-geodesy":MAILTO:wegener2026@sciencesconf.org END:VEVENT END:VCALENDAR