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UK Public Sector Code by Organisation

Met Office

Executive agency

https://www.gov.uk/government/organisations/met-office

Total FTE: 2,355·Digital & data FTE: 480

Stars of active repositories

585

Active repositories

60

Live repositories

132

Unavailable repositories

20

Languages of active repositories

  1. 1.Python (50%)
  2. 2.Fortran (18%)
  3. 3.Jupyter Notebook (7%)

Active: currently on GitHub, not archived, and pushed to within 180 days. Live: currently on GitHub. Unavailable: previously on GitHub but not currently found.

GitHub accounts

MetOffice, metomi, jules-lsm, MetOfficeSpaceApps (inactive)

Repositories

Showing all 60 active repositories, sorted by stars

69
Python

:rose: Rose is a toolkit for writing, editing and running application configurations.

Last pushed: 18 September 2026License: GNU General Public License v3.0
github.com/metomi
44
Perl

:hammer: FCM: a modern Fortran build system + wrappers to Subversion for scientific software development

Last pushed: 30 April 2026License: GNU General Public License v3.0
github.com/metomi
42

:date: :watch: Python ISO 8601 date time parser and data model/manipulation utilities

Last pushed: 4 August 2026License: GNU Lesser General Public License v3.0
github.com/metomi
33
Python

Toolkit for evaluation of weather and climate models.

Last pushed: 18 September 2026License: Apache License 2.0
github.com/MetOffice
26
Jupyter Notebook

A repository to put example and tutorial material created through the Met Office Data Science Community of Practice

Last pushed: 12 September 2026
github.com/MetOffice
23
Fortran

The Joint UK Land Environment Simulator

Last pushed: 16 September 2026License: BSD 3-Clause "New" or "Revised" License
github.com/MetOffice
15
Fortran

Suite of Community Radiative Transfer codes based on Edwards and Slingo

Last pushed: 22 July 2026License: BSD 3-Clause "New" or "Revised" License
github.com/MetOffice
12
Fortran

The Cloud and AeroSol Interacting Microphysics (CASIM) component of the Met Office-NERC Cloud (MONC) Model

Last pushed: 22 July 2026License: BSD 3-Clause "New" or "Revised" License
github.com/MetOffice
11
Fortran

United Kingdom Chemistry and Aerosols

Last pushed: 18 September 2026License: BSD 3-Clause "New" or "Revised" License
github.com/MetOffice
9
Python

Flexible build system for scientific software

Last pushed: 18 September 2026License: BSD 3-Clause "New" or "Revised" License
github.com/MetOffice
9

Development support scripts for Simulation Systems deployment

Last pushed: 15 September 2026License: BSD 3-Clause "New" or "Revised" License
github.com/MetOffice
7
Python

A Python library for generating UM ancillary files, developed at the Met Office

Last pushed: 17 September 2026License: BSD 3-Clause "New" or "Revised" License
github.com/MetOffice
6

A package to run the FastNet AI model for global weather forecasts.

Last pushed: 18 September 2026License: GNU Affero General Public License v3.0
github.com/MetOffice
6

A calliper based profiler for scientific code on HPC platforms.

Last pushed: 26 August 2026License: BSD 3-Clause "New" or "Revised" License
github.com/MetOffice
5
Python

The Climate Model Evaluation Workflow (CMEW) is a Cylc 8 workflow that is used to evaluate climate models for all Earth System Model (ESM) components.

Last pushed: 18 September 2026License: Other
github.com/MetOffice
5
Python

Python packages providing an interface to the various files used and produced by the Met Office Unified Model (UM)

Last pushed: 15 September 2026License: BSD 3-Clause "New" or "Revised" License
github.com/MetOffice
5
Python

Scheduler-agnostic DAG execution through decoupled graph definition and orchestration.

Last pushed: 4 September 2026License: BSD 3-Clause "New" or "Revised" License
github.com/MetOffice
5

A python package for tagging, managing and presenting very large numbers of images created by matplotlib.

Last pushed: 18 June 2026License: BSD 3-Clause "New" or "Revised" License
github.com/MetOffice
4
Fortran

JEDI library generating VarObs and Cx files

Last pushed: 18 September 2026License: BSD 3-Clause "New" or "Revised" License
github.com/MetOffice
4
Python

A Python library for generating LFRic ancillary files, developed at the Met Office

Last pushed: 20 August 2026License: BSD 3-Clause "New" or "Revised" License
github.com/MetOffice
4
Python

Easy Neural Networks for Use in Fortran

Last pushed: 19 August 2026License: BSD 3-Clause "New" or "Revised" License
github.com/MetOffice
4
Fortran

Shared UM Libraries from the Met Office Unified Model

Last pushed: 22 July 2026License: BSD 3-Clause "New" or "Revised" License
github.com/MetOffice
3

Light JEDI interface for NEMO model field files

Last pushed: 8 September 2026License: BSD 3-Clause "New" or "Revised" License
github.com/MetOffice
3

Met Office NetCDF I/O (MONIO) written in C++ for file I/O in JEDI-based DA (JADA).

Last pushed: 8 June 2026License: BSD 3-Clause "New" or "Revised" License
github.com/MetOffice
2

:recycle: Simulation Systems Reusable Workflows

Last pushed: 10 September 2026License: BSD 3-Clause "New" or "Revised" License
github.com/MetOffice
2
Jupyter Notebook

Material for the AI4Climate tutorial and hackathon event in South Africa

Last pushed: 2 September 2026License: BSD 3-Clause "New" or "Revised" License
github.com/MetOffice
2
Python

Met Office Coupling Infrastructure

Last pushed: 22 July 2026License: BSD 3-Clause "New" or "Revised" License
github.com/MetOffice
1

JEDI UFO filter for writing NEMO ocean model NetCDF feedback file format data from the UK Met Office.

Last pushed: 1 September 2026License: BSD 3-Clause "New" or "Revised" License
github.com/MetOffice
0

A temporary store to enable WIS2 metadata records to be accessed by WIS2 global services for ingestion into the WIS2 global discovery catalogue.

Last pushed: 18 September 2026
github.com/MetOffice
0

Code for EMBCCA-UNSEEN multivariate bias correction (UNSEEN approach, Hunan case study, DePreSys4 + ERA5-Land)

Last pushed: 13 September 2026License: BSD 3-Clause "New" or "Revised" License
github.com/MetOffice
0
Jupyter Notebook

Code for PyEarthTools site archive on JASMIN compute and data facility

Last pushed: 2 September 2026License: BSD 3-Clause "New" or "Revised" License
github.com/MetOffice
0

UKESM1-0 ARISE-SAI information and CMOR3 tables used for data processing

Last pushed: 6 August 2026License: BSD 3-Clause "New" or "Revised" License
github.com/MetOffice
0

Repository holding the software to produce climate indices using near surface air temperature data (fom GHCNd) and Land Surface Temperature (from ESA LST_cci).

Last pushed: 27 May 2026License: BSD 3-Clause "New" or "Revised" License
github.com/MetOffice