Material for the nextsim workshop

This repo contains instructions on how to run nextsim tutorials presented at the nextsim workshop.

You need 3 ingredients :

• the notebooks
• the data
• the computing environment

We suggest that you create a dedicated repository nextsim-workshopon your laptop or on a cluster that supports docker and where at least 15Gb of storage is available. All the following operations will be done in this directory

Notebooks

The notebooks are stored in this very repo, download them with : git clone https://github.com/sasip-climate/nextsim-workshop2025.git

Data

The minimal dataset needed to run each examples can be downloaded with wget https://ige-meom-opendap.univ-grenoble-alpes.fr/thredds/fileServer/meomopendap/extract/SASIP/data-nextsim-workshop2025.tar and then untar with tar -xvf data-nextsim-workshop2025.tar

Computing environment

The docker image containing the needed libraries and a compiled version of nextsimdg can be downloaded from here with the command docker pull quay.io/auraoupa/nextsim-workshop:146ddc41ba09

You then launch the downloaded docker image with the command docker run --rm -v /YOURPATH/nextsim-workshop:/home/nextsim-workshop -p 8888:8888 nextsim-workshop:146ddc41ba09 where YOURPATH must be replaced by the absolute path on your laptop leading to the nextsim-workshop directory

A jupyterlab is now deployed, you just have to open in a browser the given adress http://127.0.0.1:8888/lab?token=... with your assigned token

Results

You should have this tree of directories on your laptop :

YOURPATH/nextsim-workshop
├── nextsim-workshop2025 (git repo)
│   └── notebooks
|       ├── data-assimiliation-nextsimdg
│       ├── nextsimdg
│       └── tuto
├── data-nextsim-workshop2025 (wget)
│   ├── data-assimiliation-nextsimdg
│   ├── nextsimdg
│   └── tuto

And the mirror of it on jupyterlab, with extra repositories NEDAS and nextsimdg at the same level than nextsim-workshop