BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//geodesy.science - IAG website - ECPv6.15.18//NONSGML v1.0//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-WR-CALNAME:geodesy.science - IAG website
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
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20271031T010000
END:STANDARD
END:VTIMEZONE
BEGIN:VTIMEZONE
TZID:Australia/Sydney
BEGIN:STANDARD
TZOFFSETFROM:+1100
TZOFFSETTO:+1000
TZNAME:AEST
DTSTART:20250405T160000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+1000
TZOFFSETTO:+1100
TZNAME:AEDT
DTSTART:20251004T160000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+1100
TZOFFSETTO:+1000
TZNAME:AEST
DTSTART:20260404T160000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+1000
TZOFFSETTO:+1100
TZNAME:AEDT
DTSTART:20261003T160000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+1100
TZOFFSETTO:+1000
TZNAME:AEST
DTSTART:20270403T160000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+1000
TZOFFSETTO:+1100
TZNAME:AEDT
DTSTART:20271002T160000
END:DAYLIGHT
END:VTIMEZONE
BEGIN:VTIMEZONE
TZID:Asia/Kolkata
BEGIN:STANDARD
TZOFFSETFROM:+0530
TZOFFSETTO:+0530
TZNAME:IST
DTSTART:20250101T000000
END:STANDARD
END:VTIMEZONE
BEGIN:VTIMEZONE
TZID:Europe/Rome
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:Asia/Riyadh
BEGIN:STANDARD
TZOFFSETFROM:+0300
TZOFFSETTO:+0300
TZNAME:+03
DTSTART:20250101T000000
END:STANDARD
END:VTIMEZONE
BEGIN:VTIMEZONE
TZID:Europe/Riga
BEGIN:DAYLIGHT
TZOFFSETFROM:+0200
TZOFFSETTO:+0300
TZNAME:EEST
DTSTART:20250330T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0300
TZOFFSETTO:+0200
TZNAME:EET
DTSTART:20251026T010000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+0200
TZOFFSETTO:+0300
TZNAME:EEST
DTSTART:20260329T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0300
TZOFFSETTO:+0200
TZNAME:EET
DTSTART:20261025T010000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+0200
TZOFFSETTO:+0300
TZNAME:EEST
DTSTART:20270328T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0300
TZOFFSETTO:+0200
TZNAME:EET
DTSTART:20271031T010000
END:STANDARD
END:VTIMEZONE
BEGIN:VTIMEZONE
TZID:Asia/Tokyo
BEGIN:STANDARD
TZOFFSETFROM:+0900
TZOFFSETTO:+0900
TZNAME:JST
DTSTART:20250101T000000
END:STANDARD
END:VTIMEZONE
BEGIN:VTIMEZONE
TZID:Africa/Johannesburg
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0200
TZNAME:SAST
DTSTART:20250101T000000
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:VEVENT
DTSTART;VALUE=DATE:20260302
DTEND;VALUE=DATE:20260307
DTSTAMP:20260404T190509
CREATED:20250224T071838Z
LAST-MODIFIED:20250616T062856Z
UID:25563-1772409600-1772841599@geodesy.science
SUMMARY:Munich 2026 | REFAG Symposium + Unified Analysis Workshop UAW
DESCRIPTION:The Technical University of Munich (TUM) is proud to lead global geodetic research as it currently holds the presidents of Commission 1 “Reference Frames” of the International Association of Geodesy (IAG) and the IAG Global Geodetic Observing System (GGOS). In this prominent role\, TUM is excited to host two landmark events in 2026: \n\nThe IAG International Symposium on Reference Frames for Applications in Geosciences (REFAG2026)\, 2–4 March 2026\, and\nThe joint GGOS/IERS (International Earth Rotation and Reference Systems Service) Unified Analysis Workshop (UAW2026)\, 5–6 March 2026\n\nThese events will bring together leading experts\, researchers\, and institutions to shape the future of global geodesy — right here at TUM in Munich\, Germany. \nPlease find more information here…
URL:https://geodesy.science/event/munich2026/
LOCATION:LDBV – Landesamt für Digitalisierung\, Breitband und Vermessung\, Alexandrastraße 4\, Munich\, 80538\, Germany
CATEGORIES:Commission 1,GGOS,IAG Services,IERS
ATTACH;FMTTYPE=image/png:https://geodesy.science/wp-content/uploads/munichArtLandscape1.png
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20260305
DTEND;VALUE=DATE:20260307
DTSTAMP:20260404T190509
CREATED:20260325T065808Z
LAST-MODIFIED:20260331T071244Z
UID:34819-1772668800-1772841599@geodesy.science
SUMMARY:UAW2026: GGOS/IERS Unified Analysis Workshop 2026
DESCRIPTION:  \nUnder the umbrella of the International Association of Geodesy (IAG)\, the IAG’s Global Geodetic Observing System (GGOS) and the International Earth Rotation and Reference Systems Service (IERS) periodically hold unified analysis workshops to discuss current issues in geodetic data analysis and the determination of geodetic reference frames\, as well as the provision of reliable geodetic products for use in other geosciences and by society. In 2026\, the Unified Analysis Workshop (UAW) was hosted by the Technical University of Munich (TUM) in Munich\, Germany\, on 5th and 6th March 2026. The presentations and outcomes of the discussions are presented below according to the different UAW sessions. \n  \nWorkshop objectives\, format and attendees\n\nUAW2026 Pre-meeting reading materials\n\n  \nIERS Conventions updates\n\nIERS Conventions v2.0.0  | Sharyl Byran\, Nick Stamatakos\, Michael Efroimsky\, Patrick Charlot\, Alet de Witt\, Jean Souchay\, Frank Lemoine\, Dennis McCarthy\, José Ferrandiz\, John Ries\, Srinivas Bettadpur\, Sigrid Böhm\, Johannes Böhm\,\nReview of Changes to be Implemented for IERS Conventions Chapter 1: General Definitions and Numerical Standards | Nick Stamatakos\, Detlef Angermann\, Dennis McCarthy\nThe IERS Rapid Service / Prediction Center: Mission\, Challenges\, and Developments | Maria Davis\, Sharyl Byram\nDiscussion on IERS conventions  | Christian Bizouard\n\nOutcomes | IERS Conventions updates \n  \nWhat do we need from the next generation of geophysical models\, and their future use in geodetic data analysis and reference frame?\n\nWhat do we need from the next generation of geophysical models\, and their future use in geodetic data analysis and reference frame? | Jeff Freymueller\nTypical “environmental” corrections in geodesy processing | Jean-Paul Boy\nBackground models in Least Squares Adjustment (LSA) | Torsten Mayer-Gürr\nConsistency of pole tide and GIA corrections | A. Couhert\, M. Rousselet\, B. Meyssignac\n\nOutcomes | What do we need from the next generation of geophysical models\, and their future use in geodetic data analysis and reference frame? \n  \nChallenges in the new ITRF operational updates\n\nChallenges in the new ITRF operational updates: Points for discussion | Zuheir Altamimi\nITRS Combination Center at IGN | Z. Altamimi\, P. Rebischung\, X. Collilieux\, L. Métivier\, J. Barnéoud\, M. de La Serve\nITRS Combination Center at DGFI-TUM | Manuela Seitz\nC04 series update in the current ITRF | Christian Bizouard\nITRF Transition for IERS Rapid Service / Prediction Center (RS/PC) |  Nick Stamatakos\, Sharyl Byram\, Maria Davis\nChallenges in the new ITRF operational updates IDS | Petr Štěpánek\, Guilhem Moreaux\, Frank G. Lemoine\nIGS contributions to ITRF-updates | Tom Herring\nILRS ASC reprocessing for ITRF2020-u2025 | Mathis Bloßfeld\nIVS perspective on ITRF updates | Benedikt Soja\, Alexander Kehm\n\nOutcomes | Challenges in the new ITRF operational updates \n  \nChallenges and opportunities in analysing Genesis data\n\nChallenges and opportunities in analyzing Genesis data | Introduction | Johannes Böhm\, Urs Hugentobler\, Susanne Glaser\, Hanane Ait-Lakbir\nJoint Pilot Projects for the Analysis of Genesis Observations | Johannes Böhm\, Urs Hugentobler\, Susanne Glaser\, Hanane Ait-Lakbir\nOrbit Combination at the Normal Equation Level | Johannes Böhm\, Urs Hugentobler\, Susanne Glaser\, Hanane Ait-Lakbir\nDiscussion\nSummary\n\nOutcomes | Challenges and opportunities in analysing Genesis data \n  \nResilience of IAG Scientific Services\n\nResilience of IAG Scientific Services | Introduction | Richard Gross\, Hansjörg Kutterer\n\nOutcomes | Resilience of IAG Scientific Services \n  \nAvailability of geodetic products for the Essential Geodetic Variables\n\nAvailability of geodetic products for the Essential Geodetic Variables | Introduction | Laura Sánchez\, Detlef Angermann\, Thomas Gruber\n\nOutcomes | Availability of geodetic products for the Essential Geodetic Variables \n  \nOpen session topic (a) Gravitational deformations of VLBI receiving units\n\nResolution on Modelling Gravity-Induced Deformations of the Radio Telescope Receiving Unit | Cornelia Eschelbach\n\nOutcomes | Resolution on Modelling Gravity-Induced Deformations of the Radio Telescope Receiving Unit \n  \nOpen session topic (b) Correlations in atmospheric parameter estimation\n\nCorrelations in Atmospheric Parameter Estimation | Introduction | Benedikt Soja\nStochastic model in VLBI work done at TU Wien | Krásná Hana\nTropospheric turbulence | Minghui Xu\n\n  \nOpen session topic (c) Increased automation in geodetic data analysis\n\nIncreased Automation in Geodetic Data Analysis | Benedikt Soja
URL:https://geodesy.science/event/unified-analysis-workshop-uaw-2026/
LOCATION:Munich\, Germany\, Munich\, Germany
CATEGORIES:GGOS,IERS
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Australia/Sydney:20260305T070000
DTEND;TZID=Australia/Sydney:20260305T080000
DTSTAMP:20260404T190509
CREATED:20260218T140956Z
LAST-MODIFIED:20260218T140956Z
UID:33158-1772694000-1772697600@geodesy.science
SUMMARY:Talks on GIA Seminar
DESCRIPTION:Paul Tregoning (Australian National University\, Canberra\, Australia)\, will present \n“A tool to assess the accuracy of glacial isostatic adjustment predictions of present-day crustal uplift rates” \nWhile there are many global and regional glacial isostatic adjustment (GIA) models available that can be used to compute expected present-day uplift rates of the surface of the Earth\, they do not always agree in their predictions. Obtaining accurate estimates of uncertainties in predictions is difficult due to the assumptions that must be made when constructing the GIA models\, and geodetic users often simply adopt a preferred model or assign uncertanties based on the spread of values derived from several models. Here we show that\, through a combination of gravity changes observed by GRACE/GRACE-FO and uplift observed by GNSS\, it is possible to quantify the error in uplift rates of one or more GIA models. Whilst it is not possible to repair the GIA models directly\, this tool can be used to identify regions where ice histories and/or Earth rheology parameters are deficient in the GIA models. In this talk I will give examples of locations where GIA modelling appears to be very accurate as well as indicate some locations that are clearly problematic.
URL:https://geodesy.science/event/talks-on-gia-seminar-4/
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:20260311
DTEND;VALUE=DATE:20260314
DTSTAMP:20260404T190509
CREATED:20260210T100813Z
LAST-MODIFIED:20260210T100813Z
UID:33052-1773187200-1773446399@geodesy.science
SUMMARY:GeodCon-26
DESCRIPTION:The National Symposium Conference on Geodesy (GeodCon-26) aims to bring together researchers\, academicians\, professionals\, policymakers\, and industry leaders to explore recent advancements in Geodetic Science and its Applications. This premier event will serve as a platform to share innovations and best practices shaping Earth observation\, positioning\, and navigation technologies. \nThe Symposium conference will highlight global and regional developments in geodesy\, focusing on reference frames\, Earth system monitoring\, satellite and ground-based observations\, and the integration of emerging tools such as AI and cloud computing in geodetic data analysis. Discussions will emphasize geodesy’s role in addressing challenges like climate change\, natural hazards\, groundwater monitoring\, and crustal deformation. \nThe technical program will include tutorials by eminent experts\, offering valuable insights and practical perspectives for students\, researchers\, and professionals. Workshops\, paper and poster sessions\, and expert panels will further promote interaction\, skill enhancement\, and collaboration among academia\, government\, and industry. \nGeodCon-26 aspires to strengthen national geodetic capacity\, foster innovation and capacity building\, and position India at the forefront of global geospatial science and earth observation. \nGeodCon-26_Brochure
URL:https://geodesy.science/event/geodcon-26/
LOCATION:Indian National Science Academy (INSA)\, New Delhi\, New Delhi\, India
CATEGORIES:IAG
ATTACH;FMTTYPE=image/jpeg:https://geodesy.science/wp-content/uploads/GeodCon-26.jpg
ORGANIZER;CN="National Centre for Geodesy%2C IIT Kanpur":MAILTO:ncg@iitk.ac.in
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Rome:20260311T160000
DTEND;TZID=Europe/Rome:20260311T170000
DTSTAMP:20260404T190509
CREATED:20260309T125919Z
LAST-MODIFIED:20260309T125919Z
UID:34064-1773244800-1773248400@geodesy.science
SUMMARY:Tracking Mountain Aquifer using Space Geodesy
DESCRIPTION:Dear Colleagues\,\n\nWe are pleased to announce our first seminar for our series\, hosted by the International Association of Geodesy (IAG) Working Group 3.1: Hydrologic Signature in Geodetic Observations\, will be given by Matthew Swarr\, from the University of Montana.  This seminar wil be held at 11:00 EDT/ 8:00 PDT/ 16:00 CET/ 23:00 CST.\n\nJoin the webinar:  \nhttps://iu.zoom.us/j/82295302430\nMeeting ID: 822 9530 2430\n\nTitle: Tracking Mountain Aquifer Storage and Discharge Using Space Geodesy\nAbstract: Fractured bedrock underlying mountain ranges is a critical source of water for mountain and adjacent low-elevation communities and ecosystems. Despite the importance of mountain groundwater systems to water supplies of major socioeconomic regions\, quantifying storage changes within these aquifers remains a challenge. To evaluate the fate of water stored in mountain systems and the role of extreme precipitation events\, such as atmospheric rivers\, in replenishing groundwater storage\, we use high-precision Global Navigation Satellite Systems (GNSS) surface displacements to constrain changes in groundwater storage within the Sierra Nevada and Cascade mountain ranges\, two important mountainous regions of the Western United States. We find that mountain aquifers have been significantly depleted over the past two decades\, associated with recurrent severe multi-year droughts within these regions. However\, extremely wet winters\, can replenish storage by more than twice the average annual flux over relatively short periods\, driving the state of groundwater storage from historical lows to above normal conditions. Further\, we find GNSS derived groundwater storage changes are strongly correlated with observed groundwater head from wells. These findings show that periods of extreme precipitation rapidly recharge mountain aquifer systems and can offset multi-year losses. Moreover\, mountain aquifer systems can retain storage gains for several years post-event\, providing a durable source of streamflow\, agricultural\, and municipal water supply. As extreme precipitation events are predicted to become more intense and frequent in coming years\, we hypothesize that these events may help offset groundwater loss due to aridification\, sustaining ecosystems and buffering against a new\, drier climate normal. Additionally\, we provide insights on a newly developed method to constrain the hydraulic properties of mountain groundwater systems at the mountain range-scale using fluid diffusion models in combination with our GNSS-inferred estimates of groundwater storage. Our results indicate the effective hydraulic conductivity of the bedrock within the Sierra Nevada and Cascades is an order of magnitude higher than previous findings\, and we find consistency between our estimates of the average groundwater flow path length within the Sierra Nevada and Cascades and those derived from perennial and intermittent and perennial stream networks\, respectively\, indicating the Cascades to be a recharge dominated groundwater system with increased regional groundwater flow compared to the Sierra Nevada. These results further the current understanding of the storage and release properties of mountain groundwater systems as well as highlighting the use of geodetic observations in advancing groundwater hydrology.\n\n\nCarla Braitenberg and Grace Carlson\n\nGrace Carlson\nshe/ her\nDepartment of Geography\nIndiana University\n\n\nCarla Braitenberg\nDepartment of Mathematics\, Informatics and Geosciences\nUniversity of Trieste
URL:https://geodesy.science/event/tracking-mountain-aquifer-using-space-geodesy/
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;VALUE=DATE:20260316
DTEND;VALUE=DATE:20260321
DTSTAMP:20260404T190509
CREATED:20251106T061830Z
LAST-MODIFIED:20251120T101331Z
UID:31681-1773619200-1774051199@geodesy.science
SUMMARY:EPOS days 2026
DESCRIPTION:EPOS Days is the flagship annual conference of the European Plate Observing System (EPOS)\, bringing together researchers\, data providers\, and infrastructure developers from across Europe to advance collaboration in solid Earth science. The event serves as a key forum to discuss the evolution of EPOS as a pan-European research infrastructure and to showcase progress in data interoperability\, FAIR principles\, and service integration across the various Thematic Core Services (TCS). \nThe programme combines plenary talks\, thematic sessions\, and interactive discussions covering: \n\nintroductions to EPOS and its services for newcomers and partners;\nupdates from the different TCS communities\, including geodesy\, seismology\, volcanology\, and geomagnetism;\nsessions on technical challenges\, data policy\, and ICS–TCS integration;\ndiscussions on responsible and societal use of research infrastructures;\ninternational collaboration and national implementation showcases;\nnetworking opportunities such as poster sessions and a dedicated Early Career Researchers event.\n\nOverall\, EPOS Days provides a dynamic platform to exchange knowledge\, align technical developments\, and strengthen the community working towards a FAIR\, open\, and sustainable EPOS infrastructure for solid Earth science in Europe.
URL:https://geodesy.science/event/epos-days-2026/
LOCATION:Palazzo Doglio hotel conference centre\, Cagliary\, Italy
CATEGORIES:Commission 3,IAGA,IASPEI,IAVCEI,IGETS,IGS,🌐 Other,📚 Education & Training
ATTACH;FMTTYPE=image/jpeg:https://geodesy.science/wp-content/uploads/EPOSdays_26_A3_DEF_blu_Copyright-EPOSERIC_2025-11-05_721b62.jpg
ORGANIZER;CN="EPOS ERIC":MAILTO:communication@epos-eric.eu
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20260324
DTEND;VALUE=DATE:20260327
DTSTAMP:20260404T190509
CREATED:20260204T063941Z
LAST-MODIFIED:20260204T063941Z
UID:32905-1774310400-1774569599@geodesy.science
SUMMARY:IGETS SG Technical Workshop
DESCRIPTION:This Technical Workshop aims to bring together operators\, users\, and manufacturers of superconducting gravimeters to share\, collect and transmit knowledge and experiences\, providing a forum to discussing instrumental challenges\, processing strategies\, new developments\, and ongoing scientific applications.
URL:https://geodesy.science/event/igets-sg-technical-workshop/
LOCATION:Yebes Observatory\, Cerro de la Palera\, s/n\, Yebes (Guadalajara)\, 19141\, Spain
CATEGORIES:IGETS
ATTACH;FMTTYPE=image/jpeg:https://geodesy.science/wp-content/uploads/AdobeStock_236598424_landscape.jpeg
ORGANIZER;CN="IGETS":MAILTO:mcalvo@transportes.gob.es
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Rome:20260401T160000
DTEND;TZID=Europe/Rome:20260401T170000
DTSTAMP:20260404T190509
CREATED:20260331T041343Z
LAST-MODIFIED:20260331T041343Z
UID:34871-1775059200-1775062800@geodesy.science
SUMMARY:Hydrologic Signature in Geodetic Observations
DESCRIPTION:Dear Colleagues\, \nWe are pleased to announce our second seminar for our series\, hosted by the International Association of Geodesy (IAG) Working Group 3.1: Hydrologic Signature in Geodetic Observations\, given by Wenjin Chen\, Assistant Professor at Jiangxi University of Science and Technology\, China. This seminar will be held on April 1 at 10:00 EDT/ 7:00 PDT/ 16:00 CET/ 23:00 CST. \nJoin the webinar:\nhttps://iu.zoom.us/j/82304710308\nMeeting ID: 823 0471 0308 \nTitle: Algorithms and Software for efficient Gravity forward modeling of hydrological mass changes \nAbstract: Gravimetric forward modeling is a fundamental tool in physical geodesy and gravimetric geophysics to model the gravitational potential and its derivatives from a prescribed subsurface density distribution. This paper presents a systematic review and unified formulation of forward modeling algorithms in Cartesian and spherical coordinate systems\, defined in both spatial and spectral domains. In the Cartesian coordinate framework\, analytical and numerical expressions are provided for a simple representation of volumetric mass elements that include point mass\, vertical line mass\, horizontal mass layer\, and prism as well as for more complex and generalized representations involving volumetric mass bodies bounded by variable upper and lower interfaces and volumetric mass bodies with arbitrary geometries and heterogeneous density distribution. In the spherical coordinates\, expressions are given for prism and tesseroid together with two spectral domain approaches involving tesseroid modeling combined with spherical harmonic analysis and concentric-shell method suited for arbitrary mass geometries. Numerical experiments\, based on using digital terrain model of Tibet and Himalaya\, demonstrate that compared to prism method\, simple point and line mass approaches reproduce only the long-wavelength gravity field\, with gravity differences typically up to about 12 mGal and gravity gradient discrepancies about 0.45 E\, whereas the horizontal layer method agrees with the prism gravity solution within ±0.01 mGal and approaches almost zero differences for gravity gradient solutions. Models with variable interfaces or full arbitrary geometries can deviate by 8 mGal in regions with extremely complex topography\, underscoring necessity of realistic geometric representation in high resolution applications. Spectral domain implementations in both Cartesian and spherical coordinates substantially reduce computational time when compared with direct spatial integration techniques\, while preserving numerical accuracy that is effectively indistinguishable from spatial domain algorithms at regional scales. These results highlight the trade-offs between geometric realism\, accuracy\, and computational efficiency\, and provide practical guidance for selecting suitable forward modeling strategies in numerical studies. Finally\, we present several examples of hydrological mass changes derived from gravity forward modeling.
URL:https://geodesy.science/event/hydrologic-signature-in-geodetic-observations/
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%2C WG3.1":MAILTO:berg@units.it
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20260407
DTEND;VALUE=DATE:20260410
DTSTAMP:20260404T190509
CREATED:20251003T072122Z
LAST-MODIFIED:20260320T070747Z
UID:30385-1775520000-1775779199@geodesy.science
SUMMARY:PhHS-IHRF2026 - Int. Symposium on Physical Height Systems and the IHRF
DESCRIPTION:⚠️⚠️Given the recent evolving circumstances in the Middle East\, we would like to let you know that the IAG SC2.2\, SC2.4\, IGFS and GGOS Symposium “Physical Height Systems and the International Height Reference Frame – PhHS–IHRF2026” will be postponed to a future date. As the situation is quite uncertain\, no plans have been made yet\, hence we will keep you updated. Apologies for the last-minute change and any inconvenience this may cause to your schedule. ⚠️⚠️ \nThe PhHS-IHRF2026 “International Symposium on Physical Height Systems and the International Height Reference Frame” will be held in Riyadh\, Kingdom of Saudi Arabia from 7 to 9 April 2026. It focuses on methods for observing\, estimating and interpreting the Earth’s gravity field and the geoid with special emphasis on height systems\, physical height determination and the realization of the International Height Reference System (IHRS) into the International Height Reference Frame (IHRF). PhHS-IHRF2026 is a Joint IAG Symposium co-organized by IAG SC2.2 “Geoid\, Physical Height Systems and vertical datum unification”\, SC2.4 “Gravity and Geoid”\, the International Gravity Field Service (IGFS) and the Global Geodetic Observing System (GGOS). \nOfficial Symposium Website: https://geosa.gov.sa/en/Pages/phhs-ihrf-2026.aspx \n \nScientific Organizing Committee: \nGeorge Vergos (SC2.2 Chair\, IHRF CC director\, IGFS CB Director)\nRossen Grebenitcharsky (SC2.2 Vice-Chair)\nRiccardo Barzaghi (IGFS President)\nLaura Sanchez (GGOS President)\nHussein Abd-Elmotaal (SC2.4 Chair)\nRene Fordberg\nZuheir Altamimi  \nLocal Organizing Committee: \nAlShahrani Sultan Falah\nMohammed AlArjani\nMashael AlHarbi\nSaad AlQahtani\nAbdulmohsen AlDosari\nSaleh AlFaris\nEslam Abdulsamie
URL:https://geodesy.science/event/phys-ihrf2026/
LOCATION:General Authority for Survey and Geospatial Information (GEOSA)\, Riyadh\, Kingdom of Saudi Arabia
CATEGORIES:Commission 2,GGOS,IGFS
ATTACH;FMTTYPE=image/png:https://geodesy.science/wp-content/uploads/PHyS_logo-002.png
ORGANIZER;CN="IAG Commission 2%2C%2C SC2.2":MAILTO:sf.alshahrani@geosa.gov.sa
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20260412
DTEND;VALUE=DATE:20260418
DTSTAMP:20260404T190509
CREATED:20251202T050536Z
LAST-MODIFIED:20260209T144150Z
UID:32210-1775952000-1776470399@geodesy.science
SUMMARY:14th IVS General Meeting 2026
DESCRIPTION:The 14th General Meeting of the International VLBI Service for Geodesy and Astrometry (IVS) is the biennial general assembly of the geodetic/astrometric VLBI community. All IVS Associate Members and individuals who have interests in the application of VLBI in the fields of geodesy\, Earth sciences\, astrometry\, and other astronomical applications in geodesy are invited to attend the meeting. The meeting will be held under the theme “Linking the Celestial and Terrestrial Realms.”
URL:https://geodesy.science/event/14th-ivs-general-meeting/
LOCATION:Congress House\, Garmisch-Partenkirchen\, Germany
CATEGORIES:IVS
ATTACH;FMTTYPE=image/jpeg:https://geodesy.science/wp-content/uploads/images.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Riga:20260415T090000
DTEND;TZID=Europe/Riga:20260415T190000
DTSTAMP:20260404T190509
CREATED:20260401T103853Z
LAST-MODIFIED:20260401T103853Z
UID:35159-1776243600-1776279600@geodesy.science
SUMMARY:International Scientific Conference
DESCRIPTION:This Scientific Conference is dedicated to the study of the Earth’s internal and external processes\, as well as their interaction with the space environment. It will cover research on the dynamics of the Earth’s crust and mantle\, tectonic processes\, seismicity\, variations in the gravitational and magnetic fields\, as well as the application of satellite observations and geodetic methods. The section brings together theoretical and applied studies\, promoting interdisciplinary collaboration among geophysics\, geology\, geodesy\, and space sciences. \nGeodynamucs_and_Geospatial_Research_Draft_Agenda \n 
URL:https://geodesy.science/event/international-scientific-conference/
LOCATION:University of Latvia\, House of Sciences\, Jelgavas str. 3\, Riga\, 1004\, Latvia
CATEGORIES:Commission 2,Commission 4,ICCC,IUGG
ATTACH;FMTTYPE=image/jpeg:https://geodesy.science/wp-content/uploads/AdobeStock_236598424_landscape.jpeg
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20260428
DTEND;VALUE=DATE:20260501
DTSTAMP:20260404T190509
CREATED:20251006T083456Z
LAST-MODIFIED:20251006T084024Z
UID:30450-1777334400-1777593599@geodesy.science
SUMMARY:ENC2026 European Navigation Conference
DESCRIPTION:We are pleased to announce the next edition of the European Navigation Conference series\, ENC 2026\, will take place in Vienna\, April 28-30\, 2026. \nThe ENC-series is now widely acknowledged as the most important annual event in Europe bringing together the full positioning\, navigation and timing community. \nWhat you can expect at ENC2026: \n\nTechnical programme across three days with up to four parallel sessions;\nDaily keynote addresses in plenary\, bringing the community together;\nA friendly and collaborative atmosphere\, with opportunities to meet exhibitors and fellow delegates\, including informally over drinks and dinner as part of the conference social programme;\nAn environment to gain insights\, grow your network and foster new collaborations.\n\nThe ENC-series is a collaboration across the European Group of Institutes of Navigation (EUGIN)\, with the Austrian Institute of Navigation (OVN) leading ENC 2026 at the Austria Center Vienna (ACV). \nThe conference will highlight the latest advancements in positioning\, navigation and timing. The broad technical program will include all related aspects of technology\, science\, systems and applications. \nENC-series is open to all from across industry\, academia\, government and user segments. Whatever your level of knowledge and experience\, you will find a warm welcome and have much to gain by joining ENC2026. \nWe warmly invite you to join us in Vienna. Please do prepare your abstract\, review our sponsorship opportunities and save the date to join us. \nThese web pages will remain the hub of latest information as we move towards the conference in April 2026. Please sign up here to receive regular updates by e-mail and also follow us on LinkedIN via the QR code below. \nSee you at #ENC2026 in Vienna! \nhttps://enc-series.org/ \n  \n 
URL:https://geodesy.science/event/enc2026/
LOCATION:Austria Center Vienna\, Bruno-Kreisky-Platz 1\, Vienna\, 1220\, Austria
CATEGORIES:Commission 4,IGS,🌐 Other
ATTACH;FMTTYPE=image/png:https://geodesy.science/wp-content/uploads/ENC2026_logo_Copyright-ENC_2025-10-06_d36538.png
ORGANIZER;CN="ENC":MAILTO:s-mart@posteo.org
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20260503
DTEND;VALUE=DATE:20260509
DTSTAMP:20260404T190509
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:20260404T190509
CREATED:20250711T070656Z
LAST-MODIFIED:20260320T123413Z
UID:28843-1778007600-1778017500@geodesy.science
SUMMARY:IAG Geodesy Reception 2026
DESCRIPTION:The Geodesy Reception 2026 will take place on Tuesday\, May 5 (19:00-21:45) during the EGU General Assembly 2026. It will be hosted again at the main building of BEV (Federal Office of Metrology and Surveying). See recap of last years Geodesy Reception 2025. \nRegistration\n⚠️ Registration is required\, as capacity is limited to 120 participants. Attendance is only possible with confirmed registration! Access to the building will be granted upon verification at the entrance. \nDue to high demand and limited availability\, registration will open in two separate tranches to accommodate participants from different time zones. \nRegistration will be available on this website on the following dates: \n\n🕘 8. April\, 2026 | 09:00 CEST (UTC+2) for 80 people\n🕒 22. April\, 2026 | during EGU Geodesy Division Meeting 13:30-14:30 CEST (UTC+2) – last 40 spots\n\nPlease mark your calendar so you don’t miss the registration — places are typically filled quickly. \nRegistration will open on April 8\, 2026 09:00. \nGeodesy Cartoon Competition – Winner Announcement\nAs a special highlight\, the winners of the Geodesy Cartoon Competition will be officially announced during the event. In addition the Top 5 rated cartoon submitter of each category will receive a guaranteed reservation for the Geodesy Reception 2026. Read more: https://geodesy.science/cartoon/competition/ \nSponsors\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 Geodätisches Forschungsinstitut (DGFI-TUM) of Technische Universität München\nETH Zürich – Space Geodesy\n\nOrganiser and Event Host:\n\nBEV | Federal Office of Metrology and Surveying\, Austria\nIAG-GGOS (Global Geodetic Observing System) Coordinating Office (CO)\n\n👉 Institutions and organizations are warmly invited to support the Geodesy Reception as sponsors. If you are interested in contributing to this networking event for the geodetic community\, please contact us (GGOS Coordinating Office).
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:20260404T190509
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:20260404T190509
CREATED:20260331T041839Z
LAST-MODIFIED:20260331T041839Z
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:20260404T190509
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:20260404T190509
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:20260404T190509
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\, Región 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:20260404T190509
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;VALUE=DATE:20260616
DTEND;VALUE=DATE:20260620
DTSTAMP:20260404T190509
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 Almería 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 Politécnica 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 Topografía\, Geodesia y Cartografía\, 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:20260404T190509
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:20260404T190509
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:20260404T190509
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;VALUE=DATE:20260801
DTEND;VALUE=DATE:20260810
DTSTAMP:20260404T190509
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:20260404T190509
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:20260907
DTEND;VALUE=DATE:20260912
DTSTAMP:20260404T190509
CREATED:20260209T135251Z
LAST-MODIFIED:20260209T135317Z
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 April 19\, 2026. 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 May 17\, 2026.\nAccepted papers will be published by Springer in an Open Access volume of the official IAG series. \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 Novák\, 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:20260404T190509
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:20260404T190509
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:20260404T190509
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
END:VCALENDAR