The AMOCcommunity GitHub organization is a community-driven collection of open-source tools, datasets, and resources for studying the Atlantic Meridional Overturning Circulation (AMOC). We provide a collaborative space for AMOC researchers to share analysis packages, standardized data formats, and best practices. The organization addresses the expectations of the CLIVAR AMOC Task Team towards making AMOC observational data easier to access.

We particularly welcome resources designed for ongoing community use—such as tools for calculating the AMOC in models or from observations, datasets aggregating transport estimates across monitoring programs, or other analysis packages that envision ongoing development and broader use. We encourage suggestions for new resources—whether you work with mooring arrays, autonomous platforms, hydrographic sections, or modelling studies—raise an issue, start a discussion or propose a new repository.

📚 Explore our documentation:
👉 https://amoccommunity.github.io/docs

We are an open community! If you want to join the effort just browse through the different repositories, raise issues or start a discussion. A good start is also to introduce yourself in the Discussions.

• AMOCatlas - Python package providing access to AMOC observational array data in standardized formats, aggregating transport estimates (volume, heat, and freshwater) across monitoring programs.

• metric - Meridional ovErTurning ciRculation diagnostIC (METRIC) is a Python package for calculating observational-equivalent AMOC diagnostics in ocean general circulation models. METRIC enables users to estimate overturning, heat, and freshwater transports at the RAPID (26.5°N), MOVE (16°N), and SAMBA (34.5°S) arrays, and includes automated validation features for comparing model output to observations.

See the OceanSites website https://www.ocean-ops.org/oceansites/tma/.

• Website: https://rapid.ac.uk/rapidmoc/
• Data: Data are provided in several formats, including *.nc or netCDF format, including vertically-gridded temperature and salinity data, the overturning volume transport streamfunction (as a function of depth and time), and a few other auxiliary products.
• Latest: Data are usually within 6 months of a cruise completion. As of April 2025, data are available partway through 2023.

• Website: https://www.o-snap.org
• Data: Data are provided in *.nc or netCDF format, including gridded fields of temperature, salinity and velocity, and overturning transports in depth and density space for both OSNAP east (east of Greenland) and OSNAP west (west of Greenland).
• Latest: Data as published in Fu et al. 2023 (for the period 2014-2020) are available (as of April 2025).

• Website: https://www.aoml.noaa.gov/phod/SAMOC_international/
• Data: Data are available for MOC volume transport anomalies as *.txt or *.asc text files.
• Latest: Transport data from Kersale et al. (2020) and Meinen et al. (2018) are available (as of April 2025).

• Website: https://mooring.ucsd.edu/move/
• Data: Data for the North Atlantic Deep Water transport (1200-4950m) volume transport is available here
• Latest: Transport data until August 18, 2022 are available (as of April 2025).