# OGGM Open Meeting

###### tags: `oggm` `meeting notes`

About the format of our meetings:
- **Flash updates** are a quick round of short updates (~2-3 minutes) by all parcipitants (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")
- **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, or a prepared presentation from one of the members.
- Note that **our goal is to keep "Flash updates" + "Open agenda" under one hour** in order to keep a dynamic meeting.
- **Specific discussion:** 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: 2023-03-22 10:00-11:00 CEST

### Participants
Please sign in below so we know who will be/was here:

Name / Institution / @GitHub handle (optional)
- Anouk Vlug / University of Bremen / @anoukvlug
- Larissa van der Laan / Hannover University / @LarissavdLaan
- Fabien Maussion / University of Innsbruck/ @fmaussion
- Nicolas Champollion / Institut des Géosciences de l'Environnement / @nchampollion

### What has been discussed the previous meeting, the most important points.

### General Announcements and reminders
- The announcement of the OGGM 2023 workshop in Edinburgh is on-line: https://oggm.org/2023/02/20/7th-workshop-announcement/

### Flash updates
- Anouk:
- The OGGM training in Lahore went well.
- I will be using the cluster for decadal forecast forced simulation. (The simulations will be short.)

- Larissa:
- Finishing dissertation

- Fabien:
- Huge push of code for the v1.6.0 release
- Training Lahore (thanks Anouk and Patrick)

- Nicolas
- Question for the OGGM community about greenhouse gaz emission

### Group Agenda Points

- Fabien:
- what's new in v1.6.0
- why there will be a v1.6.1 very soon

- Morning meetings less partipants?

- New users?

### Questions

# Call: 2023-03-08 17:00-18:00 CEST

### Participants
Please sign in below so we know who will be/was here:

- Nicolas Champollion / @nchampollion / IGE Grenoble
- Lilian Schuster / University of Innsbruck / @lilianschuster
- Lizz Ultee / Middlebury College / @ehultee
- Sayantan Mandal (first meeting, hi!)

### What has been discussed the previous meeting, the most important points.

### General Announcements and reminders
- The announcement of the OGGM 2023 workshop in Edinburgh is on-line: https://oggm.org/2023/02/20/7th-workshop-announcement/

### Flash updates
- Lilian:
- submitted manuscript, also uploaded it to EarthArxiv (https://doi.org/10.31223/X5C65S)
- worked on GlacierMIP3 and new OGGM release

- Lizz:
- global drought manuscript / proposal coming together, OGGM a "collaborator"
- working on calving module with Ruitang, to be coded in OGGM to support PyGEM dynamics
### Group Agenda Points
- Quick preview of mass balance calibration in OGGM v1.6!
- Possibility to calibrate via "informed three-step" method, or to hold parameters constant and calibrate only a single one (melt factor, precip factor, temp bias)
### Questions

# Call: 2023-02-22 10:00-11:00 CEST

### Participants
Please sign in below so we know who will be/was here:

Name / Institution / @GitHub handle (optional)
- Anouk Vlug / University of Bremen / @anoukvlug
- Patrick Schmitt / University of Innsbruck / @pat-schmitt
- Lilian Schuster / University of Innsbruck / @lilianschuster
- Fabien Maussion / University of Innsbruck/ @fmaussion
- Julia Eis/ @juliaeis /University of Bremen
- Nicolas Champollion / @nchampollion / IGE Grenoble

### General Announcements and reminders
- Science Cafe
- Ines Dussaillant will present in the Science Cafe on March 1st.
- Feel free to suggest/organise a Science Cafe, by e.g. inviting a speaker or suggesting a paper to discuss.
- The announcement of the OGGM 2023 workshop in Edinburgh is on-line: https://oggm.org/2023/02/20/7th-workshop-announcement/

### Flash updates

- Patrick
- finished PhD Concept
- submitted IUGG abstract for AGILE (formaly known as COMBINE)
- testing trapezoidal downstream line in RGI region 3 (important for semi-implicit scheme)

- Lilian
- doing last small revisions before submitting my manuscript
- went to Zurich to work again on GlacierMIP3 and for the AGM
- submitted IUGG abstract about consequences of overshoot scenarios on glacier runoff
- OGGM-edu app updated with Rounce (2023) data

- Fabien
- Preparing for workshop in Lahore (including OGGM 1.6!) - going to move in a cave for the next 10 days.
- New OGGM-Edu Apps by Lily and Patrick:
- https://edu.oggm.org/en/latest/alps_future.html (thanks Lily)
- https://edu.oggm.org/en/latest/gallery.html (thanks Patrick)
- "Our" IUGG session on data driven cryosphere has the most abstracts in cryosphere (29!)
- Julia
- submitted abstact to IUGG (Responsibilities for glacier mass loss in the Alps)
- no big news, related to OGGM, but Madlene experienced a huge data loss on the cluster
--> please backup important data/scripts

- Nicolas
- 3 abstracts at IUGG -> one about OGGM-edu
- Submitted same PhD project as last year with Gael Durand and Jordi Bolibar on uncertainties and statistic emulation
- Meet Molly (Lizz student) working on La Paz glacierized cathchment
- OGGM edu used first time for 15 years old pupils

- Anouk
- Have been working on the candidate selection for the Lahore workshop.

### Group Agenda Points
- Shall we skip the meeting on March 8th (Anouk, Fabien and Partrick won't be there) or have it take place (someone needs to volenteer to lead the meeting)? For continuety we descided to have the meeting eitherway. The meeting likely will be lead by Lilian

### Questions

# Call: 2023-02-08 17:00-18:00 CEST

### What has been discussed the previous meeting, the most important points.

### General Announcements and reminders

- Science Cafe
- Feel free to suggest/organise a Science Cafe, by e.g. inviting a speaker or suggesting a paper to discuss.

### Participants

Please sign in below so we know who will be/was here:

Name / Institution / @GitHub handle (optional)

- Fabien Maussion / University of Innsbruck/ @fmaussion
- Patrick Schmitt / University of Innsbruck / @pat-schmitt
- Julia Eis/ University of Bremen/ @juliaeis
- Jan-Hendrik Malles / University of Bremen / @jmalles
- Samar Minallah / NCAR Boulder / @minallah
- Lizz Ultee / Middlebury / @ehultee

### Flash updates

- Patrick:
- new version of filter_inversion_output merged
- with this now prepro runs with semi-implicit model possible
- worked on glacier gallery (OGGM-Edu app)
- working on my PhD-Concept presentation

- Julia:
- concerning the equlibrium runs, we will concentrate on the Alp for now (because of the past tidewater problem)

- Fabien:
- overhaul of OGGM-MB is happening! Big changes incomming
- OGGM - IGM link prototype
- GLAMBIE workshop yesterday: https://glambie.org/workshop-1/
- Lily is working on GlacierMiP 3 in Zürich
- \> 300 applicants for the Pakistan training
- Paper from Regine is finally out: https://doi.org/10.1017/jog.2023.1

- Jan
- Working on code to be mergeable into the OGGM master

- Samar
- Still doing some test runs in HMA sub-domains with CISM, before GlacierMIP3 submissions
- OGGM-Karakoram paper is with editor after reviews - likely revisions coming soon (hopefully not rejection)

- Lizz (+ Molly)
- Intercomparison: we have old runoff projections from Erik, starting in 2020...planning new ones?
- Molly running multi-GCM projections for La Paz glacier runoff
- Modifying precipitation (move mean) directly is difficult - should we modify during the bias correction?
- Modify the reference climate, and/or modify the precip scaling factor (multiplicative change is more common than additive anyway for this application)

### Group Agenda Points

- optimise OGGM runs on cluster (discussion)
- trivial solution: batch of 100 or 1000 glaciers instead of RGI regions. Easy to implement, only drawback is that aggregation back into RGI region files happens after the run (but is trivial using xarray).
- restart runs: harder solution. Having a queue system which checks when a previous run is done and starts again (like with WRF). This needs Timo's help.

### Questions

# Call: 2023-01-25 10:00-11:00 CEST

### What has been discussed the previous meeting, the most important points.

Fabien shared some of his OGGM development plans (see the group agenda of the previous meeting).

### General Announcements and reminders
- Science Cafe
- Feel free to suggest/organise a Science Cafe, by e.g. inviting a speaker or suggesting a paper to discuss.

### Participants

Please sign in below so we know who will be/was here:

Name / Institution / @GitHub handle (optional)
- Anouk Vlug / University of Bremen / @anoukvlug
- Lilian Schuster / University of Innsbruck / @lilianschuster
- Jan-Hendrik Malles / University of Bremen / @jmalles
- Hamid Mojtabavi / University of Bremen /@Hamid Mojtabavi
- Patrick Schmitt / University of Innsbruck / @pat-schmitt
- Nicolas Champollion / Institut des Géosciences de l'Environnement / @nchampollion
- Fabien Maussion / University of Innsbruck/ @fmaussion

### Flash updates
- Jan:
- Resubmitted frontal ablation paper and now working on ocean data again

- Patrick:
- still working on filter_inversion_output
- small adaptations of glacier gallery (OGGM-Edu app)
- working on PhD concept

- Nicolas:
- new internship on using Julia langage (ODINN) into OGGM
- work with Hamid on parameter perturbation experiments into PROTECT project

- Anouk
- I encountered an issue with my .slurm script. Commenting out, pip install --upgrade pip setuptools, made the script run again (at least for now, this not a permanent solution, but might be helpfull when wanting to run and old script ;) ). See the cluster-Bremen channel for more details.

- Lily:
- did some visualisations of Rounce et al. (2023) data
- working on a review, AGM presentation, manuscript, made my code publicly available

- Fabi:
- Meeting with Gerard Roe, Daniel Otto, Ben and Anouk: attribution using OGGM Project
- Meeting with Guillaume Jouvet for the OGGM-IGM link
- New OGGM-Edu notebook: [ice_on_incline](https://oggm.org/oggm-edu-notebooks/oggm-edu/ice_on_incline.html). OGGM-Edu working well on classroom.oggm.org
- Still making plans and trying to delegate some work for OGGM 1.6
- RGI: https://glims-rgi.github.io/user_guide

### Group Agenda Points
- Lily presents updated OGGM-edu app of glacier projection changes with the Rounce et al. (2023) data
- [Alpine glaciers](https://cluster.klima.uni-bremen.de/~lschuster/rounce_2023_data/0_exploratory_data_analysis/alps_future-app_rounce_ssp_en.html)
- [Global glaciers](https://cluster.klima.uni-bremen.de/~lschuster/rounce_2023_data/0_exploratory_data_analysis/global_future_glacier-app_rounce_en.html)

# Call: 2023-01-11 17:00-18:00 CEST

### Participants

Please sign in below so we know who will be/was here:

Name / Institution / @GitHub handle (optional)
- Anouk Vlug / University of Bremen / @anoukvlug
- Lilian Schuster / University of Innsbruck / @lilianschuster
- Patrick Schmitt / University of Innsbruck / @pat-schmitt
- Hamid Mojtabavi / University of Bremen /@Hamid Mojtabavi
- Samar Minallah / NCAR Boulder / @minallah
- Larissa van der Laan / University of Hannover / @Larissavdlaan
- Fabien Maussion / University of Innsbruck/ @fmaussion

### What has been discussed the previous meeting, the most important points.
Jan gave a presentation on "OGGM-Nemo interactions".

### General Announcements and reminders
- Science Cafe
- Feel free to suggest/organise a Science Cafe, by e.g. inviting a speaker or suggesting a paper to discuss.
- Madlene started her simulations, using 21 nodes for the next couple of months.

### Flash updates

- Lily
- submitted abstracts to AGM and EGU, applied to Karthaus summer school
- worked on my discussion & conclusion part of my paper, deadline for annals of glaciology where I want to submit got extended (until end of February)
- currently downloading Rounce et al., 2023 data for some exploratory data analysis. If you need it -> it is here: https://cluster.klima.uni-bremen.de/~lschuster/rounce_2023_data/ , will add some example notebooks
- Patrick
- working on filter_inversion_output
- included/adapted SemiImplicitModel in COMBINE
- started the implementation of real glaciers to the glacier simulator on OGGM-Edu
- presentation about the future of glaciers in Ötztal tomorrow
- Anouk
- The following paper, I'm co-author on, got published: [Regional and tele-connected impacts of the Tibetan Plateau surface darkening](https://doi.org/10.1038/s41467-022-35672-w).
- EGU abstracts
- OGGM-Edu: an open-source educational platform about glaciers and glacier modelling
- The influence of climate forcings on global glacier evolution over the last millennium
- Simulations
- Hamid
- Submitted abstract to EGU 2023
- latin hypercube sampling for PROTECT project
- Samar
- Initial runs with CISM on a 200-m grid for the Everest domain - results look good
- Preparing the set-up for GlacierMIP runs (still aiming for GlacierMIP3)
- Larissa
- Submitted paper to AoG
- Almost done with revisions for decadal paper
- Thesis writing (Niels Bohr Institute April 1st)
- Fabien
- EGU abstract to the overshoot session (10 abstracts, 80-90% from PROVIDE)
- I started to dig into Jan's code, which tbh is quite some work
- Thank you for pointing out the issues on our Science paper

### Group Agenda Points

- OGGM developments in the making -> 1.6
- Prepare gdirs which allow to use the new solver
- Calibrate the mass-balance model and allow to calibrate
- GlacierMip3 with frontal ablation

### Questions

- Samar: shapefile to raster and 200-m netcdf grid - projection issues?

# Call: 2022-12-14 10:00-11:00 CEST

### Participants

Please sign in below so we know who will be/was here:

Name / Institution / @GitHub handle (optional)
- Anouk Vlug / University of Bremen / @anoukvlug
- Lilian Schuster / University of Innsbruck / @lilianschuster
- Patrick Schmitt / University of Innsbruck / @pat-schmitt
- Fabien Maussion / University of Innsbruck/ @fmaussion
- Nicolas Champollion / Institut des Geosciences de l'Environnement / @nchampollion
- Hamid Mojtabavi / University of Bremen /@Hamid Mojtabavi

### What has been discussed the previous meeting, the most important points.

### General Announcements and reminders
- Science Cafe
- Feel free to suggest/organise a Science Cafe, by e.g. inviting a speaker or suggesting a paper to discuss.
- Madlene will start big runs again around the Christmas holidays on the Bremen cluster.

### Flash updates
- Anouk
- I'm running some additional experiments, because the SMB in my attribution experiment was to far of the mass loss in my factual case for the 20th century.
- I'm still writting on the last millenium attribution manuscript.
- Lily
- I am in search of a storyline for my paper and extended my paper submission deadline
- Patrick
- semi-implicit scheme tests are looking good, almost ready to merge
- added new plotting option for regional plots
- adding new outputs to COMBINE (save past evolution)
- Fabien
- work on RGI7 going forward (can show some examples)
- OGGM training in Lahore
- Nicolas
- numerous demand to perform local to regional simulation around the world with different forcings

### Group Agenda Points
- Presentation by Jan.
- Christmas break, skip one meeting and contine on Jan 11th?

# Call: 2022-11-30 17:00-18:00 CEST

### Participants

Please sign in below so we know who will be/was here:

Name / Institution / @GitHub handle (optional)
- Anouk Vlug / University of Bremen / @anoukvlug
- Larissa van der Laan / University of Hannover / LvdLaan
- Jan-Hendrik Malles / University of Bremen / @jmalles
- Hamid Mojtabavi / University of Bremen /@Hamid Mojtabavi
- Julia Eis/ University of Bremen / @juliaeis
- Patrick Schmitt / University of Innsbruck / @pat-schmitt
- Sarah Hanus / University of Zurich / @sarah-hanus
- Fabien Maussion / University of Innsbruck/ @fmaussion
- Lilian Schuster / University of Innsbruck / @lilianschuster
- Lizz Ultee / Middlebury College / @ehultee
- Samar Minallah / NCAR Boulder / @minallah

### What has been discussed the previous meeting, the most important points.
- Julia presented on "*Glacier equilibrium changes over the 20th century on an (almost) global scale*"

### General Announcements and reminders
- Science Cafe
- Feel free to suggest/organise a Science Cafe, by e.g. inviting a speaker or suggesting a paper to discuss.
- Madlene will start big runs again around the Christmas holidays on the Bremen cluster.

### Flash updates

- Larissa
- Writing 'small' paper with master student, on scenario-neutral methods, where to submit? MDPI yes/no?

- Jan
- looking into ocean model data... Might present something on submarine melt next meeting.

- Hamid
- Geodetic MB (Hugonnet) for each elevation band (per glacier) for the validation!

- Patrick
- opened PR for semi-implicit scheme, need to add a few more tests
- Sarah
- started calibration of all RGI regions, how to deal with glaciers that fail? mostly because of "GeometryError... is a nominal glacier"?
- Fabien
- been at COP - 2 weeks ago
- Guillaume Jouvet at UIBK this morning
- Julia
- started to rerun all failed glaciers of the equilibrium runs backwards (started with the last year instead of 1866)

### Group Agenda Points
- Would moving to zoom make sense now the meetings start to being attended by larger numbers of people?
- Questions from Ben about growing glaciers (Fabien)

### Questions
- Larissa: MDPI question
- Hamid: validation/ oggm-shop question

# Call: 2022-11-16 10:00-11:00 CEST

### Participants

Please sign in below so we know who will be/was here:

Name / Institution / @GitHub handle (optional)
- Anouk Vlug / University of Bremen / @anoukvlug
- Jordi Bolibar / Utrecht University
- Julia Eis/ University of Bremen / @juliaeis
- Patrick Schmitt / University of Innsbruck / @pat-schmitt
- Rodrigo Aguayo / Universidad de Concepción / @rodaguayo
- Francesc Roura Adserias / University of Innsbruck / @franra9
- Jan-Hendrik Malles / University of Bremen / @jmalles
- Lilian Schuster / University of Innsbruck / @lilianschuster

### What has been discussed the previous meeting, the most important points.
- Marie presented the latest version of the OGGM-EDU app she has been working on, showing the projections of glacial lakes in High Mountain Asia.
- Big Thaw proposal got funded to implement a snow model in OGGM (Bea to have 3 more years of post-doc and back at working with OGGM :) ).
- The date for the next OGGM workshop seem to be narrowing down to some time around 28 August – 2 September 2023.

### General Announcements and reminders
- Science Cafe
- ACINN graduate seminar by Guillaume Jouvet on ice flow (November 30th, 12:00 CET) https://www.uibk.ac.at/acinn/graduate-seminar/2022w/2022-11-30_jouvet.html
- Feel free to suggest/organise a Science Cafe, by e.g. inviting a speaker or suggesting a paper to discuss.
- Madlene will start big runs again around the christmas holidays on the Bremen cluster
- Advertising new MSc thesis position to convert OGGM's flowline model to Julia (At IGE Grenoble, with Jordi Bolibar and Nico Champollion).

### Flash updates
- Patrick:
- finally added implicit scheme to COMBINE, implicit scheme in OGGM will follow soon
- working on new version of filter_inversion_output, which should conserve the bed shapes
- Rodrigo
- First simulations using RGI7 and OGGM
- Starting the uncertainties analysis of the different combinations (area, vol, gcm, ssp, etc.)

- Anouk:
- Co-convening the new EGU session [*Polar and Cryosphere attribution*](https://meetingorganizer.copernicus.org/EGU23/session/45884)
- Still writing
- Francesc
- Assess calibration uncertainty. Master Thesis to be finished before christmas.
- New (modified) flowline algorithm as oggm task.

- Jan
- Fiddling around with ocean data und submarine melt ...
- Lilian
- writing/reviewing my manuscript
- still working on new Bayesian OGGM calibration (mostly Ellie working on it at the moment)
- working on uncertainty analysis for Fabi's paper

### Group Agenda Points
- Julia will present during on "*Glacier equilibrium changes over the 20th century on an (almost) global scale*".

# Call: 2022-11-02 17:00-18:00 CEST

### Participants

Please sign in below so we know who will be/was here:

Name / Institution / @GitHub handle (optional)
- Anouk Vlug / University of Bremen / @anoukvlug
- Jordi Bolibar /
- Bea Recinos / The University of Edinburgh / @bearecinos
- Lizz Ultee / Middlebury College / @ehultee
- Molly Arndt / Middlebury College
- Marie Schroeder / University of Innsbruck
- Patrick Schmitt / University of Innsbruck / @pat-schmitt
- Rodrigo Aguayo / Universidad de Concepción / @rodaguayo
- Fabien Maussion / University of Innsbruck/ @fmaussion
- Lilian Schuster / University of Innsbruck / @lilianschuster

### What has been discussed the previous meeting, the most important points.
- Muhammad: What is the spatial and temporal scale of OGGM?
- How to deal with the new ritme where some people join only the morning/afternoon. -> including a brief summary of the most important points that have been discussed in the next meeting.

### General Announcements and reminders
- Science Cafe
- ACINN graduate seminar by Guillaume Jouvet on ice flow (November 30th, 12:00 CET) https://www.uibk.ac.at/acinn/graduate-seminar/2022w/2022-11-30_jouvet.html
- Feel free to suggest/organise a Science Cafe, by e.g. inviting a speaker or suggesting a paper to discuss.
- Madlene will start big runs again around the christmas holidays on the Bremen cluster
- Julia will present during the next meeting (November 16th) on "*Glacier equilibrium changes over the 20th century on an (almost) global scale*".
- Big Thaw proposal got funded to implement a snow model in OGGM (Bea to have 3 more years of post-doc and back at working with OGGM :) ).

### Flash updates
- Anouk:
- Blog posts:
- Uploaded a draft on the OGGM-PyGEM Global Glacier Modeling Workshop 2022
- Next blog post idea, "Help, an error! A short guide on what to do once you get stuck and have a question"
- Patrick:
- still implementing implicit scheme to COMBINE: adapting some OGGM functions to work with a pure trapezoidal flowline
- Fabien:
- Working on paper for COP27
- Working on getting RGI7 into OGGM with Alex Fischer: https://github.com/OGGM/oggm/pull/1500
- OGGM next version still on hold
- Lilian:
- worked on writing my manuscript but lots of work left
- working now on uncertainties for Fabi's paper
- & on new Bayes MB calibration
- Lizz/Molly:
- Molly's first meeting :)

### Group Agenda Points
- Presentation by Marie on "*The new OGGM-edu App: Projections of glacial lakes in High Mountain Asia*"

### Questions
- Muhammad: What is the spatial and temporal scale of OGGM?
- Jan: Question on terminus positions. -> will open github issue.

# Call: 2022-10-19 10:00-11:00 CEST

### Participants

Please sign in below so we know who will be/was here:

Name / Institution / @GitHub handle (optional)
- Anouk Vlug / University of Bremen / @anoukvlug
- Julia Eis/University of Bremen/ @juliaeis
- Rodrigo Aguayo / Universidad de Concepción / @rodaguayo

### General Announcements and reminders
- Science Cafe
- Weilin Yang, will give a presentation on "Paleoglacier modelling and paleoclimate reconstruction" in the next Science Cafe (October 26th, 14:00 CEST).
- ACINN graduate seminar by Guillaume Jouvet on ice flow (November 30th, 12:00 CET) https://www.uibk.ac.at/acinn/graduate-seminar/2022w/2022-11-30_jouvet.html
- Feel free to suggest/organise a Science Cafe, by e.g. inviting a speaker or suggesting a paper to discuss.
- We will shift to winter time on October 30th ;)

### Flash updates
- Anouk:
- I'm mostly writing this week.
- I wrote a [blog post about our slack ](https://oggm.org/2022/10/11/Welcome-to-the-OGGM-Slack/)
- Julia:
- working on the analysis of the global equilibrium runs from 1850 onwards
- huge problem with "past" tidewater glaciers
- OGGM doesn't know that those glacier reach the water
- many failed glaciers because they grow infinite
- missing glaciers cover ~50% of the volume globally
- Rodrigo:
- Assesing the effects of different volume datasets
- I switched to the A factor calibration by basin (instead of region)

### Group Agenda Points
- Discussion point based on a question by Muhammad: What is the spatial and temporal scale of OGGM?
- How to deal with the 2 timeslots, and people joining "only" half of the meetings? Maybe we should introduce a short recab of the previous meething each meeting.

# Call: 2022-10-05 17:00-18:00 CEST

### Participants

Please sign in below so we know who will be/was here:

Name / Institution / @GitHub handle (optional)
- Anouk Vlug / University of Bremen / @anoukvlug
- Jordi Bolibar / Utrecht University
- Lilian Schuster / University of Innsbruck / @lilianschuster
- Rodrigo Aguayo / Universidad de Concepción / @rodaguayo
- Sarah Hanus / University of Zurich / @sarah-hanus
- Patrick Schmitt / University of Innsbruck / @pat-schmitt
- Lizz Ultee / Middlebury College / @ehultee
- Fabien Maussion / University of Innsbruck/ @fmaussion

### Flash updates
- Lilian
- many conferences, summer schools & workshops
- could show a new plot on runoff estimates for different TI-model and calibration options
- Anouk
- OGGM workshop
- I made a longly due [PR](https://github.com/OGGM/oggm/pull/1490) on extrapolating the simulated glacier area along the flowline on to a 2D map and redistrubuting the glacier thickness.
- Forcing with the TraCE21K seem to go smoothly now for its whole duration now. (I realised after I dug up some old scripts, from the time it didn't work before Julian day 1 and updated them.)
- Rodrigo
- Working on a experiment to asses the different sources of uncertainty
- Sarah
- starting again with OGGM: some basins and global run (?)
- Patrick
- added a uncertainty scaling factor to the dynamic mu star calibration (idea is to account for correlated uncertainties of geodetic mass balance when looking on regional to global scale)
- opened a PR to add a trapezoidal downstream line (needed for the trapezoidal implicit solver I plan to use in COMBINE and probably will also be added to OGGM at one point)
- Fabi
- Semester started yay
- Writing paper - also an annals of glaciology with Beatriz
- Juggling with changes in OGGM till 1.6
- Lizz
- Student project on perturbing precipitation input --> OGGM runoff at ~10 glacier scale
- Intercomparison of runoff to 2100, global, OGGM/PyGEM/GloGEM
- Intend to produce a new kind of k-calving based on viscoplastic calving physics

### Group Agenda Points

- Lily:
- plots Lily
- Anouk:
- Results evaluation workshop
- Jordi
- OGGM-ODINN ice flow modelling coupling & ideas from Larissa

# Call: 2022-09-07

### Participants

Please sign in below so we know who will be/was here:

Name / Institution / @GitHub handle (optional)
- Anouk Vlug / University of Bremen / @anoukvlug
- Sangita Tomar / NTNU
- Francesc Roura Adserias / University of Innsbruck / @fra
- Fabien Maussion / University of Innsbruck/ @fmaussion
- Hamid Mojtabavi / University of Bremen /@Hamid Mojtabavi

### General Announcements
- Questionaire regarding new time slots for the on-line meetings.

### Flash updates
- Anouk:
- I have been working on things related to the workshop.
- Francesc:
- First tests with the bin surface mass balance model. Start testing with real data.
- Sangita:
- Initial installation of the OGGM. Model setup for study area remaining.
- Fabien:
- all my students are at the IMC SS
- Lots of maintainance on oggm codebase (see PRs)
- Preparing glacier directories for workshop: will be fun!
- 1.6 release possible before workshop?
- Paper on [largest glaciers](https://www.cambridge.org/core/journals/journal-of-glaciology/article/which-glaciers-are-the-largest-in-the-world/202DD32784F5798505B1CCAB279225E4)
- [Video with OGGM in it](https://www.puls4.com/tv/klimaheldinnen-das-nachhaltigkeits-magazin/staffel-02/klimaheldinnen-das-nachhaltigkeits-magazin-vom-23082022/gefaehrliches-eis) (in German)
- Hamid:
- I had a positive covid in the last few days and I was self-isolated in the Netherlands :-)
- Working on a new calibration method for my parameterization of debris cover.

## Older notes

See https://github.com/fmaussion/hackmd-notes/blob/master/OGGM-Notes-Legacy.md