Hack4RiOMar: First FAIR2Adapt Workshop for the RiOMar Case Study
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Oceanography
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Applied sciences
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European Commission
doi: 10.3030/101188256
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RIOMAR project (2024-2030)
author: Anne Fouilloux
creator: Anne Fouilloux
date created: 2025-01-25 15:34:20.283153+00:00
date modified: 2025-10-14 08:33:30.490015+00:00
description: # The French Project RIOMar (River-dominated Ocean Margins) The French project **RIOMar** (River-dominated Ocean Margins), a winner of the *"Ocean & Climate" Priority Research Program*, focuses on an in-depth study of the environment in five major coastal areas of mainland France influenced by rivers. Its objective is to provide scientifically grounded solutions to maintain or restore sustainable ecosystems in regions particularly affected by climate change and anthropogenic inputs transported and deposited by rivers. --- ## Scientifically Grounded Solutions to Mitigate Risks to Vulnerable Coastal Ecosystems Coastal areas are crucial for humanity, especially those dominated by rivers flowing into the ocean. Their future evolution poses a significant challenge, as it is estimated that **80% of the global population will live within 40 kilometers of the coast by 2030**. At the intersection of land and sea, **estuaries, lagoons, and deltas** experience daily interactions between freshwater and marine waters. The major estuaries of France (*Seine, Loire, and Gironde*) and the Rhône delta are just a few examples of these "transitional" environments along the French coastline. Currently, the **885 coastal municipalities of mainland France** account for over **10% of the population**. According to recent estimates (*source: Ministry of Ecological Transition*), an additional **4.5 million inhabitants** are expected to settle in these regions by 2040. In such conditions, the **coastal ocean environment** in these areas will become increasingly vulnerable to various combined human and climate-induced stressors: - Warming - Acidification - Eutrophication* - Hypoxia* - Contamination - Extreme events Simulating their evolution under the combined influence of **anthropogenic pressure and climate change** is a major challenge. The number of unknown and often unpredictable parameters is considerable. Addressing this requires a **comprehensive approach**, grounded in the **multidisc…
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Croco grid netCDF file
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creator: Anne Fouilloux
date created: 2025-01-25 16:54:25.280358+00:00
date modified: 2025-10-14 08:33:37.297165+00:00
description: This is the grid of the Croco model used to generate RiOMar data.
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license: legalcode
sd date published: 2025-01-25 16:54:25.280358+00:00
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RiOMar datasets
author: Anne Fouilloux
creator: Anne Fouilloux
date created: 2025-01-25 15:43:13.218913+00:00
date modified: 2025-10-14 08:33:31.079615+00:00
description: All the RiOMar datasets were generated on the HPC of IFREMER (Brest, France) and made accessible to everyone on the IFREMER DATAMOR.
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sd date published: 2025-01-25 15:43:13.218913+00:00
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RiOMar netCDF dataset January 2006
author: Anne Fouilloux
creator: Anne Fouilloux
date created: 2025-01-25 16:56:08.727634+00:00
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description: Raw RiOMar dataset generated by the Croco RiOMar numerical model. It corresponds to one month of simulation (January 2006).
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sd date published: 2025-01-25 16:56:08.727634+00:00
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small.zarr
author: Anne Fouilloux
creator: Anne Fouilloux
date created: 2025-01-25 15:46:08.361514+00:00
date modified: 2025-10-14 08:33:31.384316+00:00
description: Small Zarr file generated from the original RiOMar data by selecting a few timestep to reduce the total size and make it easier to write Jupyter notebook examplifying the transformation from the original grid to DGGS Healpix grid.
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sd date published: 2025-01-25 15:46:08.361514+00:00
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RiOMar DGGS Healpix Level 12 data
author: Anne Fouilloux
creator: Anne Fouilloux
date created: 2025-01-25 15:48:58.856359+00:00
date modified: 2025-10-14 08:33:31.701166+00:00
description: A sample dataset in DGGS Level 12 Healpix
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RiOMar DGGS Healpix Level 13 data
author: Anne Fouilloux
creator: Anne Fouilloux
date created: 2025-01-25 15:50:16.014757+00:00
date modified: 2025-10-14 08:33:32.008014+00:00
description: A sample dataset in DGGS Level 13 Healpix
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RiOMar DGGS Healpix Level 14 data
author: Anne Fouilloux
creator: Anne Fouilloux
date created: 2025-01-25 15:51:30.560593+00:00
date modified: 2025-10-14 08:33:32.309746+00:00
description: A sample dataset in DGGS Level 14 Healpix
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sd date published: 2025-01-25 15:51:30.560593+00:00
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XDGGS: A community-developed Xarray package to support planetary DGGS data cube computations
author: Anne Fouilloux
creator: Anne Fouilloux
date created: 2025-01-25 15:39:18.552821+00:00
date modified: 2025-10-14 08:33:30.776384+00:00
description: ## Abstract Traditional map projections introduce distortions, especially for global data. Discrete Global Grid Systems (DGGS) offer an alternative by dividing the Earth into equal-area grid cells at different resolutions. This paper describes xdggs, a new Xarray extension that simplifies working with DGGS. Xdggs provides a unified API for various DGGS libraries and integrates seamlessly with the Pangeo ecosystem through extending the widely used Xarray library to use the DGGS-specific cell identifiers as an index. This development makes DGGS more accessible and will lead to facilitating data analysis on a planetary scale. Xdggs aims to provide a user-friendly API that hides the implementation complexities of different DGGS libraries. And because it integrates seamlessly with Xarray, a popular tool for geospatial data analysis, xdggs promotes FAIR data practices by simplifying data access and interoperability and can become a valuable tool for geospatial scientists and application developers working with global datasets. ## How to cite Kmoch, A., Bovy, B., Magin, J., Abernathey, R., Coca-Castro, A., Strobl, P., Fouilloux, A., Loos, D., Uuemaa, E., Chan, W. T., Delouis, J.-M., and Odaka, T.: XDGGS: A community-developed Xarray package to support planetary DGGS data cube computations, Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLVIII-4/W12-2024, 75–80, https://doi.org/10.5194/isprs-archives-XLVIII-4-W12-2024-75-2024, 2024.
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Rendered Jupyter Notebook to create RO-Crate from RiOMar dataset
author: Anne Fouilloux
creator: Anne Fouilloux
date created: 2025-01-25 16:23:29.825452+00:00
date modified: 2025-10-14 08:33:35.121763+00:00
description: This is a rendered Jupyter notebook showing how to create a RO-Crate (using the Python API rocrate) for archiving the RiOMar dataset into the NIRD archive. The metadata used for the creation of the RO-Crate correspond to what is needed when archiving in the NIRD archive (Norwegian Research Data Archive).
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Rendered Jupyter Notebook for regridding RiOMar sample zarr dataset to DGGS Helix Level 12.
author: Anne Fouilloux
creator: Anne Fouilloux
date created: 2025-01-25 16:08:28.081639+00:00
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description: This is the rendered Jupyter notebook showing how to regrid a sample of RiOMar data into DGGS (Healpix).
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Rendered Jupyter Notebook to create a sample RiOMar dataset
author: Anne Fouilloux
creator: Anne Fouilloux
date created: 2025-01-25 16:07:15.688254+00:00
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description: Read a netCDF original dataset from RiOMar and select a few timestep to save it in Zarr. This is the rendered Jupyter nobteook.
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Rendered Jupyter Notebook for demonstrating the usage of Multi-resolution RiOMar data
author: Anne Fouilloux
creator: Anne Fouilloux
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description: This is the rendered Jupyter Notebook that uses Datatree (Xarray) to examplify how to create a multi-resolution dataset with DGGS (different resolution).
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Rendered Jupyter Notebook using VirtualZarr with Kerchunk for RiOMar data
author: Anne Fouilloux
creator: Anne Fouilloux
date created: 2025-01-25 16:21:19.629769+00:00
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description: This is the rendered Jupyter notebook that shows how to use Virtualizarr with Kerchunk to create a RiOMar datasets with all the necessary files required for a full RiOMar data analysis.
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Rendered Jupyter Notebook to visualize RiOMAR dggs-transformed data with xddgs and lonboard
author: Anne Fouilloux
creator: Anne Fouilloux
date created: 2025-01-25 16:15:21.272219+00:00
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description: This is the rendered Jupyter notebook to Visualize RiOMAR dggs-transformed data with xddgs and lonboard
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RiOMar dataset transformed into DGGS (Healpix)
author: Anne Fouilloux
creator: Anne Fouilloux
date created: 2025-01-25 16:41:03.570318+00:00
date modified: 2025-10-14 08:33:36.626762+00:00
description: This image shows how a RiOMar dataset can be visualized with xdggs (that uses lonboard).
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sd date published: 2025-01-25 16:41:03.570318+00:00
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Jean-Marc Delouis
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Tina Odaka
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Anne Fouilloux
affiliation: Simula Research Laboratory
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Even Moa Myklebust
affiliation: Simula Research Laboratory, Oslo, Norway
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orcid: 0000-0002-8380-6370

requirements.txt
author: Anne Fouilloux
creator: Anne Fouilloux
date created: 2025-01-25 17:04:04.598465+00:00
date modified: 2025-10-14 08:33:36.337641+00:00
description: Python requirements.txt for running the Jupyter Notebooks.
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sd date published: 2025-01-25 17:04:04.598465+00:00
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Create RO-Crate from RiOMar dataset (Jupyter Notebook)
author: Anne Fouilloux
creator: Anne Fouilloux
date created: 2025-01-25 16:25:17.457336+00:00
date modified: 2025-10-14 08:33:35.419693+00:00
description: In this notebook, we will learn how to create a simple RO-Crate from the RiOMar data. We will then identify any missing metadata that needs to be added to the original dataset’s metadata.
license: MIT
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Regridding Sample RiOMar dataset to DGGS (Jupyter Notebook)
author: Anne Fouilloux
creator: Anne Fouilloux
date created: 2025-01-25 16:02:57.994335+00:00
date modified: 2025-10-14 08:33:32.970415+00:00
description: The goal is to regrid a sample of RiOMar data into DGGS (Healpix).
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Create a small sample RiOMar dataset (Jupyter Notebook)
author: Anne Fouilloux
creator: Anne Fouilloux
date created: 2025-01-25 15:56:16.378242+00:00
date modified: 2025-10-14 08:33:32.643402+00:00
description: The goal is to create a smaller RiOMar dataset to test regridding to Healpix on Pangeo EOSC.
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sd date published: 2025-01-25 15:56:16.378242+00:00
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Multi-resolution RiOMar data (Jupyter Notebook)
author: Anne Fouilloux
creator: Anne Fouilloux
date created: 2025-01-25 16:27:38.815063+00:00
date modified: 2025-10-14 08:33:36.025481+00:00
description: The use of multiscale Zarr in combination with the Discrete Global Grid System (DGGS) for Earth Observation aims to enhance the efficiency and scalability of storing, accessing, and analyzing large geospatial datasets. Multiscale Zarr allows for efficient compression and chunking of data, enabling rapid access to high-resolution imagery and other spatial datasets. When integrated with DGGS, which provides a hierarchical, cell-based representation of the Earth’s surface, this approach facilitates seamless multi-resolution analysis, improves interoperability, and supports advanced geospatial processing and visualization, ultimately enabling more effective monitoring and understanding of environmental changes.
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VirtualZarr with Kerchunk for RiOMar data (Jupyter Notebook)
author: Anne Fouilloux
creator: Anne Fouilloux
date created: 2025-01-25 16:26:33.673105+00:00
date modified: 2025-10-14 08:33:35.737080+00:00
description: The goal is to create a virtualzarr for all RiOMar data using Kerchunk (since Icechunk does not work at the moment on Pangeo-EOSC or for data on datamor (https access).
license: MIT
sd date published: 2025-01-25 16:26:33.673105+00:00
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Visualize RiOMAR dggs-transformed data with xddgs and lonboard (Jupyter Notebook)
author: Anne Fouilloux
creator: Anne Fouilloux
date created: 2025-01-25 16:12:52.106356+00:00
date modified: 2025-10-14 08:33:33.573848+00:00
description: ## Purpose The goal is to visualize the DGGS transformed RiOMar data with xdggs and lonboard. ## Description In this notebook, we will: - Open DGGS RiOMar dataset - Visualize it using a colorblind-friendly colormap
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Hack4RiOMar: First FAIR2Adapt Workshop for the RiOMar Case Study
about: Oceanography
about: Applied sciences
author: Jean-Marc Delouis
author: Tina Odaka
author: Anne Fouilloux
author: Even Moa Myklebust
content size: 63370
copyright holder: Simula Research Laboratory
copyright holder: IFREMER
creator: Anne Fouilloux
date created: 2025-01-23 10:14:05.953792+00:00
date modified: 2025-10-16 12:11:12.957209+00:00
date published: 2025-01-23 10:14:05.953792+00:00
description: ## RiOMar Case Study This [FAIR2Adapt](http://fair2adapt-eosc.eu) case study is led by IFREMER and builds on the outcomes of the RiOMar Project - Coastal Water Quality Anticipation to manage coastal zone ecosystem responses for biodiversity conservation. The RiOMar project’s data is high-resolution and complex to manipulate. To effectively support climate adaptation strategies and plans, it is crucial to maintain the high-resolution quality while enabling efficient data fusion with diverse datasets. ## Event The Hack4RiOMar workathon brought together six motivated participants in person, collaborating to advance the FAIR2Adapt RiOMar Case Study—the first workshop in our series of FAIR2Adapt case studies. We extend our gratitude 👏 to the external experts who participated at their own expense, bringing their expertise to tackle challenges and drive progress. ## Funding FAIR2Adapt project (101188256) is funded by the European Union. Views and opinions expressed are however those of the author(s) only and do not necessarily reflect those of the European Union or the Agency. Neither the European Union nor the granting authority can be held responsible for them.
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cite-as: Fouilloux, Anne, Jean-Marc Delouis, Tina Odaka, Even Moa Myklebust, Justus Magin, and Ola Formo Kihle. "Hack4RiOMar: First FAIR2Adapt Workshop for the RiOMar Case Study." ROHub. Jan 23 ,2025. https://w3id.org/ro-id/a0007726-0f5b-4ccb-a160-f350d669805e.

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output
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has part: RiOMar DGGS Healpix Level 13 data
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meeting_agenda_and_minutes(1st workshop).pdf
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description: Agenda and minutes from the first workshop for the Biscayan RiOMar Case Study (Hack4RiOMar event).
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The Hack4RiOMar workathon brought together six motivated participants in person, collaborating to advance the FAIR2Adapt RiOMar Case Study—the first workshop in our series of FAIR2Adapt case studies.
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