OGGM Open Meeting

# OGGM Open Meeting ###### tags: `OGGM` `meeting notes` Our meetings have a simple structure! They usually take somewhere between 20 mins and an hour, depending on the agenda! 1. **General Announcements and reminders** 2. **Flash updates** 3. **Project updates** 4. **Group agenda points** 5. **Topical discussion** 6. **Action items** - **Flash updates** are a quick round of short updates (~2-3 minutes) by all participants (please also write them in the shared notes). Here you can request for additional agenda items that require longer discussions (example: "I have a problem understanding XY"). Even if you have nothing to report you will be asked to say hi, and tell us something else about your week instead! - This is followed by **Project updates**, during which we revisit the currently opened projects on github (for example, a documentation update, a paper led by a community member, the next OGGM version, etc.). - **Group agenda points** are longer, open discussion points of the day. This could be something that needs input from all participants, a discussion about model choices, a project requiring input from the community, or a prepared presentation by one of the members. Note that **our goal is to keep "Flash/project updates" + "Open agenda" well under one hour** in order to keep a dynamic meeting. - **Topical discussions** are more technical items that may not be of interest to everyone (e.g. about a specific problem, master thesis, etc.). These will take place after the official part. - **Action items**: what needs to be done after the meeting and by who ## Call: 2026-05-20 16:00-17:00 CET Please sign in below so we know who will be/was here: - Fabien Maussion / Bristol - Nicolas Gampierakis / Bristol - Chloe Hancock / Bristol - Marin Kneib / ETHZ, UniFr - Kara Lamantia / Bristol - Rodrigo Aguayo / VUB - Bea Recinos / University of Edinburgh ### Action items from last week ### Flash updates - Fabien: - Went to a workshop on climate litigation - Working on RGI 7.1 and paper and other RGI-related thing - Chloe: - Cleaning code - OGGM Community Admin - Nick: - One step closer to preventing pickle doomsday. - Train-the-trainer workshop. - Marin: - EGU, transition to UniFr, fieldwork... meaning slow progress on calibration work - but there seems to be a good potential for inverted SMB gradients for the calibration (good news for ContinuIX, the intercomparison exercise on that topic, which will enter its second phase in the summer. Drafting protocol now and will reach out for feedback) - Rodrigo: - Currently in Grenoble for 2 months, going back to Brussels soon - Playing again with OGGM <3 - Trying to address uncertainty in glacier runoff - Bea: - Deploying Outline code around ANT, working for serveral islands, happy so far. - Lots of more work for Delineation and ANT connectivity. We will add new attributes to understand what application covers different levels of connectivity (Gravimentry, ISMIP, altimetry etc) - Kara - Upscaling snowline GGE to python pipeline ### Group agenda points - EGU Highlights from everyone? - Fab: Seen Javed with a new model for GlacierMIP4 - Rodrigo: papers Evap vs Ice Melt same magnitude. - Logo decision on the cups. ### Questions? ### Action items for next time - Next presentation - Rodrigo? Kara? ## Call: 2026-04-22 16:00-17:00 CET Please sign in below so we know who will be/was here: - Fabien Maussion / Bristol - Marin Kneib / ETH Zürich - Nicolas Gampierakis / Bristol - Patrick Schmitt / University of Innsbruck - Niklas Richter / University of Innsbruck - Bea Recinos / University of Edinburgh - Larissa van der Laan / University of Copenhagen - Lea Hartl / ÖAW ### Action items from last week ### Flash updates - Fabien: - OGGM 1.6.3 released - - Survey launched - 19 answers and counting - Loads of motivation and ideas for changes in oggm: https://github.com/OGGM/oggm/issues - OGGM workshop invoice will be coming soon - Marin: - Avalanche tutorials - https://tutorials.oggm.org/stable/notebooks/tutorials/running_oggm_with_avalanches.html - Playing with OGGM calibration possibilities & different mass balance models. Added a representation of debris (based on Rounce et al. (2021) enhancement factors) - Nick - Migrating from gdirs to zarr. - Navigating the transition to a post-pickle world. - Patrick - Small optimization in SemiImplicitModel (a first test shows runtime reduction between 15 to 25%): https://github.com/OGGM/oggm/pull/1885 - Added support for DailyTIModel and SfcTypeTIModel to dynamics https://github.com/OGGM/oggm/pull/1899: some things to discuss in a separate meeting or at one of the next group meetings - working on merging dev branch into master - new UNESCO report with contributions from global glacier community: https://unesdoc.unesco.org/ark:/48223/pf0000397874 - Niklas: - just visiting to hear the talks and exchange on remote-sensing datasets for glacier data assimilation - Lea : same as Niklas - Bea: - Finished the full code pipeline for producing outlines of Subantarctic and Antarctic islands (massive milestone). Ready to roll the code around Antarctica. - Trying to find time to finish Delineation paper. - Started reading about solvers. - Larissa - Greenland periphery viability thresholds - Scenario-neutral analysis - CSD analysis - Finishing EGU presentation ### Group agenda points Presentation by Albin Wells about the recent publication: [Seasonal progression of melt and snowlines in Alaska from SAR reveals impacts of warming](https://www.nature.com/articles/s41612-026-01321-y) ### Questions? ### Action items for next time - Next presentation by? ## Call: 2026-04-08 16:00-17:00 CET Please sign in below so we know who will be/was here: - Fabien Maussion / Bristol - Chloe Hancock / Bristol - Nicolas Gampierakis / Bristol - Patrick Schmitt / University of Innsbruck - Bea Recinos / University of Edinburgh ### Action items from last week - Find someone for in two weeks time? ### Flash updates - Fabien: - Almost ready to press "release" 1.6.3 - OGGM-Next started. Priorities on parameter handling and "cloud readiness" for now - Survey to be implemented - Asked my sister about the 10-year logo - Meet with Ben about the logistics - Chloe: Started working on OGGM-next, getting previous work up to date (RMSD calibration tutorial and a runoff tutorial). Continuing on my Sensitivity Analysis x OGGM workflow. - Patrick: - was at GlaMBIE workshop in Toulouse - started looking at DIVA solver - Bea: - Progress with Delineation methods in paper almost done - back on coding the last bits for the Antarctic outlines - reading and trying to understand Dan's DIVA solver ### Group agenda points Presentation by Patrick about the new parameter handling workflow in OGGM 1.7 (2.0?) ### Questions? - Goodies options: bea to show the cups ### Action items for next time - Next presentation by? ## Call: 2026-03-25 16:00-17:00 CET Please sign in below so we know who will be/was here: - Fabien Maussion / Bristol - Marin Kneib / ETH Zürich - Nic Gampierakis ### Action items from last week - who to present next time? ### Flash updates - Fabien: - worked on the survey - OGGM-next to start soon: https://oggm.org/2026/03/23/oggm-next/ - Workshop registrations (47) - Little feedback on the release so far - I guess we'll just release and see how it goes - Marin: - avalanche maps for new gdirs - OGGM-avalanches notebooks, code repo update to work with new release - Testing avalanches with dynamical spinup, daily model - Playing around with daily & snow tracking model. Comparisons with Loibl et al. (2025) snowlines, mass balance gradients from SMB inversions... - Will move from ETHZ to University of Fribourg on deFirn project with Martina Barandun. Some more regional scale modeling & processes (firn this time) - Nick: - working on OGGM release & salem. ### Group agenda points - Fabien would like to seek feedback and discuss on the mega OGGM survey. Current draft at: https://hackmd.io/@fmaussion/oggm_community_survey - Write down teh expectations againe and revisit the questions with this in mind. Expectations: - usage patters (what matters what not) - which base_url (add this bcakckground tot eh questions) - OGGM-edu -> for which universities, which particualr classes are using it, etc (think about anonymity on this case) - what is it used for? - priorities for the future (pain points less painful) ### Questions? ### Action items for next time - Next presentation will be by Patrick ? ## Call: 2026-03-11 16:00-17:00 CET Please sign in below so we know who will be/was here: - Marin Kneib / ETHZ - Nicolas Gampierakis / University of Bristol - Patrick Schmitt / University of Innsbruck - Bea Recinos / University of Edinburgh - Lizz Ultee / NASA GSFC & Morgan State U ### Action items from last week - who to present next time? ### Flash updates - Marin - Working on a notebook for avalanches + producing avalanche maps for the new glacier directories - Started looking into calibration of OGGM snow tracking model with mass balance gradients, snow lines and historical DEMs. Preparing case study for Everest region. - Nick - Working on next OGGM release. - Patrick - Working on tutorials for v1.7 (current dev branch): - one notebook for new settings (should come this week) - one notebook for new mb options (imported daily and sfc from massbalance-sandbox, will probalby come in the next two weeks) - will ask for help once a first draft is ready - Bea: - Almost done with delineation work (started TC paper) - PR for semi-implicit with calving - Lizz: - Working on example observational constraint with archived GlacierMIP data - Sloan got fellowship to develop undergrad research on climate variability in glacierized basins, likely starting 2027 ### Group agenda points - Note the announcement by Fabien of the OGGM 1.6.3 release next week. Thanks to everyone who contributed! Don't hesitate to support by reviewing the new documentation. ### Presentation by Bea ### Questions? ### Action items for next time - Next presentation will be by Patrick :) ## Call: 2026-02-25 16:00-17:00 CET Please sign in below so we know who will be/was here: - Bea Recinos / University of Edinburgh - Lizz Ultee / NASA GSFC - Ritu Anilkumar / Univeristy of Bristol - Chloe Hancock - Nicolas Gampierakis - Fabien Maussion - Lilian Schuster ### Action items from last week - who to present next time? ### Flash updates - Chloe - First merge into OGGM master! - calibration with the RMSD with WGMS data. - Implementing workflow to execute sensitivity analysis on the runoff. - Fabien - OGGM closer and closer to minor release - Global Glacier Modelling workshop registration to open soon - Awarded a fellowship to have a full year research leave next academic year - Interested MScR for debris in OGGM - Bea - Started working on changes to semi-implicit. Need to mimic more functionalities from the FluxBasedModel useful for MT. - Finishing delineation work. Brief communication in Cryosphere or ESSD (probably cryosphere) - Lizz - CMIP6 spread paper published today [in TC](https://tc.copernicus.org/articles/20/1339/2026/) - Planning to present on observationally constrained projections at AGU Chapman mtg. on SLR - Ruitang frontal ablation manuscript (Bayesian calibration on coupled OGGM-PyGEM-SERMeQ) submitted to GMD - Ritu - Uncertainty struggles. Learning about prediction powered inference as a way of looking at uncertainty of aggregates. - Nick - An overview of the new installation procedure. ### Group agenda points - OGGM goodies 10 year anniversary theme. (lego OGGM? Spoon fork camping? mouse pads?) - Climate data discussion - OGGM/studies do not do downscaling beyond xr.sel() - Changing climate data is easy / but what about calibration? - Who is the expected audience to change something? If you are learning the model / you're unlikely to do it. - Most likely people to do these kind of studies are in this room. - Regional : additional data / snowline / etc can be used to assess the quality of the data - How do we know what climate data to trust with so little observations near glaciers? - Seasonal mass balance as a better way to constrain / compare climate data. - An overview of the new installation procedure. ### Questions? ### Action items for next time ## Call: 2026-02-11 16:00-17:00 CET Please sign in below so we know who will be/was here: - Marin Kneib / ETH Zürich - Bea Recinos / University of Edinburgh - Fabien Maussion / Bristol - Nicolas Gampierakis / Bristol - Patrick Schmitt / University of Innsbruck - Lizz Ultee / NASA GSFC + Morgan State U ### General Announcements and Reminders ### Action items from last week - Who can facilitate/moderate the next OGGM meetings? Would anyone like to present their project/work in one of the next meetings (see [this google docs](https://docs.google.com/document/d/1PNFGT6o-CzwGC9TCuLYS1KMNW2FReq30Ij3pcG-pIEI/edit?usp=sharing))? -> fabi to do it for now. ### Flash updates - Marin: - Last avalanche-related paper submitted (monitoring of an on-glacier avalanche cone with field/close-range remote sensing - good agreement found with SnowSlide parametrization!) - Back into OGGM - investigating DTC-Glaciers notebooks :) - Bea: - Working on last step to automate code for new outlines for Antarctica - Working on Delineation and connectivity assesment: more info in this [link](https://github.com/bearecinos/linkage_assessment_ANT) - For a month in Bristol working with Fabi in the calving part. - Fabien - DTC Glaciers 1-year project officially ended. Loads of reporting but also good outcomes https://dtcglaciers.org - Did a bunch of OGGM directories over the break - Lily presented some of them last week. - Having a look at glacier volumes right now - Kara Lamantia started at Bristol - Nick - Switching to UV for streamlining OGGM installation. - Lizz - ISMIP simulation time approaching and deadlines will be short - Working on observational constraint of glacier model (+ ice sheet model) ensembles for integrated sea-level projections - Drought paper seems close to acceptance - Ruitang's frontal ablation manuscript nearing submission - Patrick - should have time in the next weeks continue with the dev branch and start working on documentation and new tutorials ### Group agenda points - Update on GlacierMIP4 by Fabien ### Questions? ### Action items for next time Bea to present Antartica work in two weeks ## Call: 2026-01-28 16:00-17:00 CET Please sign in below so we know who will be/was here: - Lilian Schuster / University of Innsbruck - Patrick Schmitt / University of Innsbruck - Lizz Ultee / NASA GSFC + Morgan State U - Ritu Anilkumar / University of Bristol - Marin Kneib / ETH Zürich - Rodrigo Aguayo / VUB - Larissa van der Laan / University of Copenhagen - Johannes Brunner / University of Oslo ### General Announcements and Reminders ### Action items from last week ### Flash updates - Patrick: - finished my PhD Thesis - next week final meeting of DTC-Glaciers pilot phase - Lilian: - end of contract (applying for jobs) - updating OGGM docs, tutorials - see my presentation - Ritu - Struggling with uncertainty quantification ### Group agenda points - Presentation by Lilian ### Questions? ### Action items for next time - Who can facilitate/moderate the next OGGM meetings? Would anyone like to present their project/work in one of the next meetings (see [this google docs](https://docs.google.com/document/d/1PNFGT6o-CzwGC9TCuLYS1KMNW2FReq30Ij3pcG-pIEI/edit?usp=sharing))? ## Call: 2026-01-14 16:00-17:00 CET Please sign in below so we know who will be/was here: - Lilian Schuster / University of Innsbruck - Larissa van der Laan / Copenhagen University - Patrick Schmitt / University of Innsbruck - Ben Marzeion / UBremen - Marin Kneib / ETZ Zürich (+Ritu, Marijn, Kelden, Elisa) ### General Announcements and Reminders ### Action items from last week ### Flash updates - Lilian * Created long-term glacier projections with UKESM Terrafirma TipESM climate model data * Created new OGGM v163 standard projections, + preparing blogpost to present/compare new v1.6.3 preprocessed gdirs and test projections (w. ERA5, or RGI7 ... ) * Trying to find a new job - Patrick - DTC-Glaciers pilot phase is comming to an end - finally time again to continue with my PhD - Marin - Wrapping up some stuff on avalanches. Looking into getting back to glacier modeling soon. ### Group agenda points - presentation by Marijn: GLacier mass balance modeling using a Long Short-Term Memory (LSTM) network - short summary of Glambie/GlacierMIP discussion on including modelled re-analysis data (lily) ### Questions? ### Action items for next time ## Call: 2025-12-10 16:00-17:00 CET Please sign in below so we know who will be/was here: - Chloe Hancock / University of Bristol - Ritu Anilkumar / University of Bristol - Bea Recinos / University of Edinburgh - Marin Kneib / ETH Zurich - Patrick Schmitt / University of Innsbruck - Ben Marzeion / UBremen - Christina Draeger / University of British Columbia ### General Announcements and reminders ### Action items from last week ### Flash updates - Chloe - Adding capability to cailbrate by minimizing RMSD into the OGGM. - Tutorial showing how scalar calibration in the OGGM affects runoff. - Ritu - Using OGGM as priors for Bayesian Neural Networks - Extended from Iceland to all RGI regions - Bea - Busy getting ready for AGU, and RGI for ANT. - Marin - Some close-range remote sensing - Lilian (only listening): proposal got rejected, looking now for other options - Patrick - proposal together with Lea for a three year project got funded, building upon previous work https://doi.org/10.5194/tc-19-1431-2025 - lots of work at the end of the DTC-Glaciers project ### Group agenda points - presentation by Marin ### Questions? ### Action items for next time - New Year's break --> next OGGM meeting on January 14, 2026 - Anyone who wants to present something in the next OGGM meetings? ## Call: 2025-11-26 16:00-17:00 CET ### Participants Please sign in below so we know who will be/was here: - Nicolas Gampierakis / University of Bristol - Marin Kneib / ETH Zürich - Lilian Schuster / Uni Innsbruck - Rodrigo Aguayo / VUB Brussels - Patrick Schmitt / University of Innsbruck / @pat-schmitt ### General Announcements and reminders ### Action items from last week ### Flash updates * Marin * Publication of the OGGM-Snowslide global study: https://doi.org/10.1038/s41467-025-65608-z * Close-range remote sensing projects (based on time-lapse cameras & LiDAR) * Involved in 2 relevant studies: * Study led by Thomas Shaw (ISTA) on the impact of uncertainties in high-elevation precipitation on glacier models in HMA * Study led by Alexandra von der Esch (ETHZ) on updated glacier & runoff projections in the Indus basin using GloGEM daily calibrated with snowlines * Lilian * made OGGM v1.6.3 test projections w. different calibration strategies * currently reflattening climate data to inlcude RGI7 glacier gridpoints * working on making ERA5 available (recalibrate prcp.fac - winter prcp relationship) * Rodrigo * Back to the meetings * Using OGGM v163, and some comparisons with v153 * ERA5 daily * Daily runoff ouputs using OGGM * Fabien * Making progress with new glacier directories : tuning to make as little change as possible to 1.6.1 + RGI7-ready directories + ERA5 directories * Showing Lily's plot after flash updates * Patrick * back from parental leave since last week * working on review on AGILE paper * try to find time to work on PhD-Thesis * before parental leave I worked on integrating Lily's sfc tracking to OGGM dev - see in action here: https://notebooks.dtcglaciers.org/notebooks/06_sfc_type_workflow.html! * working on assimilating snowline data together with sfc tracking * working on using Monte Carlo Simulation for uncertainty propagation with OGGM dev * Nicolas * Integrating [DESP data](https://earthdatahub.destine.eu/catalogue) into OGGM glacier directories - eventually part of OGGM shop? -> Yes it should * Lizz * Finishing up coupled frontal ablation manuscript with Ruitang ### Group agenda points - Calibration plot - presentation by Sayantan ### Questions? ### Action items for next time - Next meeting: presentation by Marin ## Call: 2025-11-12 16:00-17:00 CET ### Participants Please sign in below so we know who will be/was here: - Lilian Schuster /@lilianschuster - Codrut Diaconu / TU Munich & German Aerospace Center (DLR) - Nicolas Gampierakis / University of Bristol - Fabien Maussion / Bristol ### General Announcements and reminders ### Action items from last week - long summer break ### Flash updates * Nicolas * OGGM-Next - will be working on OGGM core starting April 2026 * Fabien * OGGM-Next funded (1 year) * AGILE-glaciers rejected (that hurts...) * OGGM 1.6.3 glacier directories building building... * Chloe started looking into calibration and hydrology * OGGM dev branch has loads of exiting things happening including a standard daily model * Lilian * had a long break! * working on OGGM for 3 months "from Innsbruck" * new standard projects * daily ERA5 * still waiting for proposal outcome * Codrut * First time joining OGGM meeting! * ML stuff on glaciers, including OGGM sometimes! * Paper on mapping glaciers out in September * Trying to use OGGM to fill in dh/dt gaps in another project * Kelden * MSc in Katmandu university - OGGM for projections in Buthan * Muqeet * MSc in Katmandu university - Integrating OGGM into hydrological model ### Group agenda points - Does someone want to present some of their curent work in two weeks (Nov 26) or has some idea whom to ask for a little presentation? Please add your name (or presenter suggestions) into this google docs document: https://docs.google.com/document/d/1PNFGT6o-CzwGC9TCuLYS1KMNW2FReq30Ij3pcG-pIEI/edit?tab=t.0 ### Questions? - Kelden: questions about GCMs - Codrut: using OGGM for elevation-change profiles ### Action items for next time ## Call: 2025-06-11 16:00-17:00 CEST ### Participants Please sign in below so we know who will be/was here: - Fabien Maussion - Nicolas Gampierakis - Lilian Schuster /@lilianschuster ### General Announcements and reminders ### Action items from last week - summer break : stop having meeting No meeting at LPS, meeting on 9th and then break! ### Flash updates - Fabien - AGILE proposal almost ready - Progress on digital twin - Many papers published and more coming - Nicolas - Surface tracking integrated, but a lot of refactoring needed. - Calibrating with CryoTEMPO-EOLIS data shows promise. - Lilian - lots of interviews for my last two papers - proposal written, waiting for some feedback/collaboration letters before submitting - preparing Indian Glaciological Summerschool - tutorials with OGGM: using updated version from the "lahore future glacier changes" tutorial. - last OGGM meeting for me for a while ### Group agenda points ### Questions? ### Action items for next time - Remember cancelling the next one. ## Call: 2025-05-28 16:00-17:00 CEST ### Participants Please sign in below so we know who will be/was here: - Anouk Vlug / @anoukvlug ### General Announcements and reminders ### Action items from last week ### Flash updates - Anouk - I will start my new position at the UvA next week, so I won't be attending these on-line meetings for the forseeable future. - I'm slowly progressing with the LIA manuscript. ### Group agenda points ### Questions? ### Action items for next time - Uncertainties and Digital Twin - Discuss if/when there will be a summerbreak ## Call: 2025-05-14 16:00-17:00 CEST ### Participants Please sign in below so we know who will be/was here: - Anouk Vlug / @anoukvlug - Fabien Maussion - Patrick Schmitt / University of Innsbruck / @pat-schmitt - Nicolas Gampierakis / University of Bristol ### General Announcements and reminders ### Action items from last week Daily MB model by Nick. ### Flash updates - Anouk - Gave a guest lecture at a secondary school - Working on LIA manuscript - 2 small PR's for the community page that can be merged - Fabien - At Arolla all of last week and visit - large backlog - Letter of Interest for software maintenance fund ready - 2 papers coming up, press releases - Small additions to OGGM - Patrick - still working on new parameter handling - Open for business! - Bea: - 2-weeks leave - GRL paper more or less done (sent to co-authors) - sadly no major update on calving module :( - One summer student working on glacier outlines of Antarctica (collecting Sentinel 1 and 2 data) - New big thaw postdoc to start 24th of May. - Bedmap Himalayas (thickness data) from Hamish P. soon to be submitted to ESSD. - Marin - EGU went well - Avalanche PICO turning into paper now - Precip data in HMA - Busy ### Group agenda points - Presentation Nick - OGGM Shop supports W5E5 data at daily resolution. - MonthlyTIModel serves as the parent for DailyTIModel. - MonthlyTIModel has been refactored into smaller methods, which child daily TI models hook into only when necessary. - Code is trending towards more explicit signatures rather than kwargs, to prevent illegal arguments being passed to parent classes, or overridden by hardcoded variables within method. - Calibration now works, although the differences between DailyTIModel and MonthlyTIModel are minimal. - Surface tracking scheme is still delayed - part of this is technical debt in test framework. - Publication page - catagorize publications? - The issue was briefly discussed. For now we will continue the way we did, listing all publications (we're aware of) using OGGM. We will track how this is going from time to time, and if a more urgent need for categorizing arises. @bearecinos, mentioned Elicit, which might be an useful IA tool to help with labelling once the time comes. ### Questions? ### Action items for next time - Uncertainties and Digital Twin ## Call: 2025-04-30 16:00-17:00 CEST ### Participants Please sign in below so we know who will be/was here: - Fabien Maussion / Bristol - Nicolas Gampierakis / Bristol - Patrick Schmitt / University of Innsbruck / @pat-schmitt - Nicolas Champollion / Institut des Geosciences de l'Environnement, Grenoble /@nchampollion ### General Announcements and reminders - Nico to organise workshop with Bruxelles team ### Action items from last week ### Flash updates - Fabien - When I have 5 minutes, I work on the glacier directories - last hour spent on press release for Lily's paper - Nicolas - Surface tracking continues... - Installation UX - Patrick - still working on new handling of parameters in OGGM - gave presentation at graduate seminar at ACINN - Nicolas - oggm workshop - glaciermip4 - Lilian - Proposal writing is hard! ### Group agenda points - workshop - glacier directories - impact document ### Questions? ### Action items for next time Daily MB model by Nick ## Call: 2025-04-16 16:00-17:00 CEST ### Participants Please sign in below so we know who will be/was here: - Fabien Maussion / Bristol - Anouk Vlug / @anoukvlug - Ben Marzeion / @benmarzeion - Patrick Schmitt / University of Innsbruck / @pat-schmitt - Lilian Schuster /@lilianschuster ### General Announcements and reminders - See call for joining the Steering Commitee - Anouk and I met with Charlotte to reflect on one year after governance workshops ### Action items from last week - [ ] revive science cafe - [ ] Organise workshop ### Flash updates - Fabien - Patrick and Lea's paper was big in the German news! - had a really good workshop with stakeholders in Iceland. Had a better grasp of their operations, wondering what other countries are interested in hydropower - spent several hours on the OGGM "impact" document - not ready to share - OGGM maintenance is still quite a time drain... - Patrick - joined stakeholder workshop in Iceland - preparing ~40 new glaciers for goodbye-glaciers - Lilian - post-defensio motivation low - glacier disappearance date paper led by Lander - Anouk - invited for 2nd job interview! - Ben ### Group agenda points - Web analytics - Lily presentation ### Questions? ## Call: 2025-04-02 16:00-17:00 CEST ### Participants Please sign in below so we know who will be/was here: - Fabien Maussion / Bristol - Ben Marzeion / Bremen / @benmarzeion - Marin Kneib / Zürich - Nicolas Gampierakis / Bristol - Patrick Schmitt / University of Innsbruck / @pat-schmitt - Lilian Schuster /@lilianschuster - Oskar Herrmann /@OskarHerrmann - Bea Recinos / University of Edinburgh / @bearecinos ### General Announcements and reminders - Lily is now Dr. Schuster! - OGGM workshop likely to happen in October in Brussels ### Action items from last week - [ ] revive science cafe - [ ] Organise workshop ### Flash updates - Fabien - Digital Twin workshop approaching - Adding infrastructure for daily data - Looking into applying for software maintenance fund: https://www.software.ac.uk/programmes/research-software-maintenance-fund - As a preparation, working on an "impact tracker" for OGGM. More on this soon! - Ben - transfer of ownership of domain oggm.org to OGGM e.V. seems to have worked without any issues - Bremen group has moved to a brand-new (in other words: semi-finished) fancy/rusty building - Marin - EGU approaching - polishing OGGM-avalanche figures (thanks Lily & Patrick :)) - Fieldwork - Found student for mapping englacial conduits (some UIBK applicants, thanks Fabien for forwarding!) - Nicolas - Daily TI model - Patrick - teaching and paper writing - 5 or 6 people interested in signposts - https://goodbye-glaciers.info - Lily - first preparations for the Indian Glaciological Summerschool (https://indianglaciologyschool.com/Years-Content.aspx?yr=2025) - this year's focus is climate-glacier interactions - not yet advanced on potential glacier irreversibility proposal - Oskar - Received reviews for paper submitted last-year to Annals of Glaciology - verification of glacier models (calibrating IGM SMB) - Looking forward to EGU - Bea - Just saying hello - Major revisions on GRL paper (looking good) ### Group agenda points ### Questions? - Lily: potential OGGM cluster usage via classroom/jupyterHub for the Indian Glaciological Summerschool (though potential issue with internet bandwidth) ### Action items - EGU rehearsal? ## Call: 2025-03-19 16:00-17:00 CET ### Participants Please sign in below so we know who will be/was here: - Fabien Maussion / Bristol - Marin Kneib / ETHZ - Patrick Schmitt / University of Innsbruck / @pat-schmitt - Lilian Schuster /@lilianschuster - Bea Recinos / University of Edinburgh / @bearecinos ### General Announcements and reminders Lily's defense on Monday. Who is doing what on the big glacier day? ### Action items from last week - [ ] revive science cafe ### Flash updates - Fabien - Not much OGGM news - Small code update for Edinburgh team - Marin - Thinking about ways to implement ice melt in FSM - Looking for an intern for a dream internship but struggling to find candidates! https://sirop.org/app?_k=Kx3x2Oxe92OtbrRr - Avalanches in OGGM: agreed with co-authors on structure + content of main figures - Analysis of sensitivity to spatial resolution. Interesting outcomes, though nothing unexpected. Some decisions to be taken (happy to discuss the options if there's time) - Patrick - writing on AGILE paper - submitted an early career AGILE proposal for future developments - doing a science slam about goodbye glaciers at the 'Nachhaltigkeitsmesse' in Innsbruck - Lilian - PhD defensio on Monday, March 24 - doing an outreach talk tomorrow in Galtür - Bea - still dealing with major revisions on GRL m. - but started playing with the calving notebook and the semi-implicit class. ### Group agenda points ### Questions? ### Action items - Revive the OGGM science Café? ## Call: 2025-03-05 16:00-17:00 CET ### Participants Please sign in below so we know who will be/was here: - Fabien Maussion / Bristol - Marin Kneib / ETH Zürich - Patrick Schmitt / University of Innsbruck / @pat-schmitt - Nicolas Gampierakis / Bristol - Anouk Vlug / @anoukvlug ### General Announcements and reminders ### Action items from last week - [x] Introductions channel created ### Flash updates - Fabien - Plenty of travels (digital twin frascatti, glacier modelling oslo...) and lots of teaching. Feeling really swamped this month and the next... - New (non-OGGM) class https://fabienmaussion.info/climate_risks/ - next workshop will deal with OGGM standard projections! - A few OGGM news: - DTCG Digital twin making progress - A new PhD student maybe? :crossed_fingers: - New test gdirs (finally...) - Marin - Very nice AGM at UIBK - OGGM-SnowSlide global runs + preparing some figures & key messages - Testing oggm-3dviz to visualize avalanche hotspots (experiencing kernel crashes when using viz?) (Patrick: yes the problem is, if you try around with the design using viz.show(), you also should do after each try viz.close(), as in the background everytime a new pyvista object is created and keept opened. I need to document this better.) - Patrick - nice AGM: set up first goodbye-glacier signpost (german press release of Uni Innsbruck: https://www.uibk.ac.at/de/newsroom/2025/goodbye-glaciers-wegweiser-markieren-das-ende-der-gletscher/) - working on a new way handling parameters in OGGM (group agenda point) - try to finish first AGILE paper for submission (https://github.com/OGGM/AGILE) - writing on a proposal for future developments of AGILE - Nicolas - First implementation of Lily's daily TI model from massbalance-sandbox. - Daily data for W5E5. ### Group agenda points - Patrick: discuss ongoing developments of dealing with model parameters in OGGM - Tests with UTM and resolution ### Questions? ### Action items - Revive the OGGM science Café? ## Call: 2025-02-19 16:00-17:00 CET ### Participants Please sign in below so we know who will be/was here: - Marin Kneib / ETHZ - Patrick Schmitt / University of Innsbruck / @pat-schmitt - Bea Recinos / University of Edinburgh / @bearecinos - Lilian Schuster /@lilianschuster ### General Announcements and reminders ### Action items from last week ### Flash updates - Marin - OGGM global simulations with avalanches (still) - MSc student started on the topic of inverting SMB from remote sensing data with IGM and constrain spatial variability of snow accumulation (in collaboration with G. Mazzotti for the distributed snow modelling with FSM2TRANS) - French translations for goodbye-glaciers - AGM presentation on field measurements of avalanches - Patrick - not much updates, attended conferences the last two weeks - goodbye-glaciers website will have a first release soon (before AGM next week, where we will present it as a poster) - preparing a talk for AGM - Lilian - attended glacier model workshop Oslo - phd dissertation defensio very likely on March 24 at 13 CET - preparing talk on ICCI glacier projections until year 2300 (and goodbye glacier events) - Bea - Dealing with major GRL paper corrections (more simulations but all good) though that will bring futher delays on other stuff - update on FSM: once docs are better will be online ### Group agenda points - Suggestion from Lizz in #governance re: knowing who is in the Slack community (LU posting this here for you in absentia, sorry) - Bea: Or can we just make a new #introduction channel where it may be clearer that people should introduce themselves.... Lily: we could also ask everyone to introduce themselves in one sentence there, it would be a nice collection, though maybe too much work for everyone? ... We may just need someone who checks once per month all new people and asks them to introduce themselves (if they have not yet introduced themselves... this is probably not too much work?) ### Questions? - discussion on FSM2trans (Marin and Bea) - oggm hub -> give people access -> can bea help? But she thinks that we may need a protocol...may also make sense to split the work (for two people, change every month or so)? Maybe put these kind of changing rules into an OGGM community calendar? ### Action items - Lily asked: how can we make the meetings a bit longer/more interactive again? -> no solution yet, but we will think about it ## Call: 2025-02-05 16:00-17:00 CET ### Participants Please sign in below so we know who will be/was here: - Anouk Vlug / @anoukvlug - Marin Kneib / ETHZ - Ben Marzeion / @benmarzeion - Lilian Schuster /@lilianschuster - Sarah Hanus - Weilin Yang ### General Announcements and reminders ### Action items from last week ### Flash updates - Marin - OGGM global simulations with avalanches - Sensitivity analysis - MSc student starting to invert SMB from remote sensing data with IGM and constrain spatial variability of snow accumulation - Ben - looking forward to the Oslo workshop! - physical move of the Bremen working group to new building early/mid March, but hardware questions seem to be solved - hub/classroom got upgraded with more RAM - Weilin - combineds 2D icepack model with OGGM - Lilian - preparing Oslo presentation about GlacierMIP3 glacier and climate model uncertainites - will go to this workshop later today: -> https://wcrp-cmip.org/event/model-selection-workshop/ -> any specific thoughts? - glacier overshoot study basically accepted - Anouk - Back to the LIA manuscript - Sarah - writing up PhD dissertation - some follow-up studies use the CWatM-OGGM coupling ### Group agenda points - future GlacierMIP options - discussed the already "available" options - Marin liked the "partitioning of mass balance components" comparison - additional ideas: glacier "runoff" intercomparison ### Questions? ### Action items ## Call: 2025-01-22 16:00-17:00 CET ### Participants Please sign in below so we know who will be/was here: - Anouk Vlug / @anoukvlug - Bea Recinos / University of Edinburgh / @bearecinos - Lilian Schuster / University of Innsbruck / @lilianschuster - Patrick Schmitt / University of Innsbruck / @pat-schmitt ### General Announcements and reminders ### Action items from last week Report by Fabien in absence: - [/] 2025 OGGM workshop: *likely to happen towards autumn, in Grenoble or somewhere easy to reach (e.g. Amsterdam, Brussels). Also shorter: 3 days. We will seek input from community on this. 2026 workshop to be organised in Obergurgl, in big fashion for the 10 yr aniversary* - [x] oggm.org migration: *we picked a date in march - for that day, most of OGGM services (not the cluster or gdirs) will be down.* - [x] Cluster migration: *no migration planned at this stage. Some plans for the hubs in the future. (addition from Ben, also absent today: Timo confirmed that the only downside are vastly reduced data transfer rates for the Bremen group, and he is somewhat optimistic he can event circumvent this issue; worst case: larger down/uploads are done by physically carrying a hard drive to the building with the rack)* ### Flash updates - Bea - Submitted manuscript to [GRL](https://essopenarchive.org/users/881139/articles/1260076-mapping-ice-stream-sensitivity-in-the-amundsen-sector-to-changes-in-ice-velocity-observations) and giving a talk about this on Friday in Bristol. (Finally two weeks of full focus on IRF!). - Submitted HiPerma proposal to NERC, lead by [Dr. Qi Ou](https://edwebprofiles.ed.ac.uk/profile/dr-qi-ou), on permafrost thawing in HMA (to hired 2 posdocs in Edi). - Ready to work on the calving module but preparing bristol talk atm. - Lilian - worked further on the [goodbye-glaciers.info](https://goodbye-glaciers.info/) website - thinking about writing a proposal (https://www.fwf.ac.at/en/funding/portfolio/careers/erwin-schroedinger), eventually related to glacier projections beyond 2100, specifically temperature overshoot scenarios and glacier irreversibilities, but topic is still open - looking into open post-doc positions - analysing again GlacierMIP3 model differences for Oslo - Anouk - Larissa her decadal manuscript was re-submitted - Now working on revising another co-authored manuscript - Marin - OGGM globals simulations with avalanches - thanks for the support! - Analysis of results - very exciting :) ### Group agenda points ### Questions? - Bea: - When in March will the OGGM servers will be down? Will this affect oggm.edu and the Hub? Can I pre-book time 2hrs already for the 10th and 13th of March for a Glacier hydrology lecuture? - Anouk: - best practices on ... ### Action items ## Call: 2025-01-08 16:00-17:00 CET ### Participants Please sign in below so we know who will be/was here: - Fabien Maussion / University of Bristol / @fmaussion - Marin Kneib / ETHZ - Anouk Vlug / @anoukvlug - Patrick Schmitt / University of Innsbruck / @pat-schmitt - Lilian Schuster / University of Innsbruck / @lilianschuster - Ben Marzeion / UBremen /@benmarzeion - Lizz Ultee / NASA Goddard / @ehultee ### General Announcements and reminders ### Action items from last week - [ ] 2025 OGGM workshop - [ ] oggm.org migration - [ ] Cluster migration ### Flash updates - Fabien - Nice study making use of OGGM (best figure is in the supplementary material!): https://www.nature.com/articles/s41561-024-01597-w - Digital Twin project kicked-off: https://dtcglaciers.org. Next milestone is presentation at a digital twin meeting at ESA early Feb - New OGGM-Edu app by Finn and Lizz: https://edu.oggm.org/en/latest/glacier_runoff.html - Started thinking about what it would entail to clone part of OGGM infrastructure to Bristol. Not easy... - TODO for this year: steering committee https://community.oggm.org/roles.html - I forgot! A new research software engineer at Bristol (see Slack) - Marin - Global runs with OGGM-Snowslide (representation of avalanches) on OGGM cluster. Some debugging involved, but overall very exciting. - Patrick - new task compute_fl_diagnostics_quantiles (still needs to be documented) - working on new mechanics for proviing different parameters to dynamic runs (e.g. sensitivity experiments, MCS, make dynamic calibration more flexible), will open a PR this week - Lilian - submitted PhD dissertation before Christmas - Patrick and me are working on the https://goodbye-glaciers.info website/project (still seeking for feedback) - Site is blocked on NASA computers and maybe other US gov't...Lizz will check further details - thinking about what doing after PhD - Anouk - Giving feedback on Larissa's manuscript to be resubmitted tomorrow - Other co-author paper as well - Ben - news from Jan: 3rd PhD-paper accepted ### Project updates [Github community projects](https://github.com/orgs/OGGM/projects/3) ### Group agenda points Steering commitee : https://community.oggm.org/roles.html OGGM steering committee: - asking on Slack seems good - clear expectations about what to do - democratic process? Maybe at least an open process - members should stay for a certain time? - somewhere between 5 and 9 (one person from PyGEM / IGM, one person using OGGM for teaching, one person representign users, one developer, one ECS, etc.) ### Questions? ### Action items - Ben, Timo and Fabien to follow-up on the physical location of the cluster. - Same group to think to migrate the oggm.org - Fabien to follow-up on the Steering Committee idea ## Older notes See https://github.com/fmaussion/hackmd-notes

Syntax	Example	Reference
# Header	Header	基本排版
- Unordered List	Unordered List
1. Ordered List	Ordered List
- [ ] Todo List	Todo List
> Blockquote	Blockquote
Bold font	Bold font
Italics font	Italics font
~~Strikethrough~~	~~Strikethrough~~
19^th^	19^th
H~2~O	H₂O
++Inserted text++	Inserted text
==Marked text==	Marked text
[link text](https:// "title")	Link
![image alt](https:// "title")	Image
`Code`	`Code`	在筆記中貼入程式碼
```javascript var i = 0; ```	`var i = 0;`
:smile:		Emoji list
{%youtube youtube_id %}	Externals
$L^aT_eX$	L^aT_eX
:::info This is a alert area. :::	This is a alert area.