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MetOffice

67 indexed repositories · View on GitHub

simulation-systems
Met Office Simulation Systems Working Practices and Community Support

Python · 57 stars
aws-earth-examples
Example code of how to freely use Met Office's weather datasets through Earth on AWS.

45 stars
CSET
Toolkit for evaluation of weather and climate models.

Python · 33 stars
lfric_apps
LFRic Applications

Fortran · 31 stars
stylist
Style checking for Fortran, PSyclone DSL, etc

Python · 28 stars
weather_datahub_utilities
Utilities for customers to use with the Weather DataHub

Python · 27 stars
lfric_core
LFRic Infrastructure

Fortran · 26 stars
data_science_cop
A repository to put example and tutorial material created through the Met Office Data Science Community of Practice

Jupyter Notebook · 26 stars
jules
The Joint UK Land Environment Simulator

Fortran · 23 stars
PyPRECIS
PyPRECIS is the python based training environment for Met Office PRECIS training courses.

Jupyter Notebook · 20 stars
socrates
Suite of Community Radiative Transfer codes based on Edwards and Slingo

Fortran · 15 stars
DataScience-NetworkOfCommunities
Data Science Network Of Communities Portal

13 stars
ngmo-environments
Next Generation Environments for Momentum®

Python · 12 stars
casim
The Cloud and AeroSol Interacting Microphysics (CASIM) component of the Met Office-NERC Cloud (MONC) Model

Fortran · 12 stars
ukca
United Kingdom Chemistry and Aerosols

Fortran · 11 stars
LFRic-Atmosphere-Training
Self-learning training material for the LFRic Atmosphere model.

Jupyter Notebook · 11 stars
fab
Flexible build system for scientific software

Python · 9 stars
SimSys_Scripts
Development support scripts for Simulation Systems deployment

Python · 9 stars
CDDS
The Climate Data Dissemination System (CDDS)

Python · 8 stars
ANTS
A Python library for generating UM ancillary files, developed at the Met Office

Python · 7 stars
47 more repositories live on View on GitHub

Beginner friendly Everything

Open All

XIOS aborts during context initialisation due to undefined field - `lfric_atm` Open

bug

Difficulty 2/5 1-3 hours Newbie friendliness 74/100

MetOffice/lfric_apps#773 · Opened Sep 11, 2026
add followlink option to os.walk in cdds_arrange_input_data Open

Difficulty 1/5 Under an hour Newbie friendliness 92/100

MetOffice/CDDS#1106 · Opened Sep 11, 2026
2026.07.2 release reports its version as 2026.07.1 Open

Difficulty 1/5 Under an hour Newbie friendliness 92/100

MetOffice/shumlib#38 · Opened Sep 9, 2026
CMake build does not link the OpenMP targets, so BUILD_OPENMP has no effect Open

Difficulty 2/5 1-3 hours Newbie friendliness 84/100

MetOffice/shumlib#37 · Opened Sep 9, 2026
Action Ocean and Sea Ice modelling feedback Open

Content

Difficulty 1/5 Under an hour Newbie friendliness 85/100

MetOffice/LFRic-Atmosphere-Training#342 · Opened Sep 7, 2026
Bug in /science/vegetation/crop_date_mod.F90 Open

Difficulty 2/5 1-3 hours Newbie friendliness 76/100

MetOffice/jules#151 · Opened Aug 26, 2026
Add limited options for some dataset options and improve explanations Open

configure investigation needs refinement rose

Difficulty 2/5 Half a day Newbie friendliness 65/100

MetOffice/CMEW#564 · Opened Aug 26, 2026
Update the testing documentation Open

needs refinement

Difficulty 1/5 Under an hour Newbie friendliness 90/100

MetOffice/CMEW#560 · Opened Aug 21, 2026
`shapely.vectorized` deprecated since `2.0.0` Open

Difficulty 2/5 1-3 hours Newbie friendliness 76/100

MetOffice/ANTS#169 · Opened Aug 21, 2026
`AntsArgParser` has conditional which is always `True` Open

Difficulty 1/5 Under an hour Newbie friendliness 85/100

MetOffice/ANTS#164 · Opened Aug 13, 2026
list the package managers configured by this action Open

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

MetOffice/action-setup-artifactory#47 · Opened Aug 7, 2026
Use a regular expression to extract the streams from variables files. Open

technical debt technical discussion

Difficulty 1/5 Under an hour Newbie friendliness 78/100

MetOffice/CMEW#545 · Opened Aug 7, 2026
l_run_cdf truncates the base_name path Open

Difficulty 2/5 1-3 hours Newbie friendliness 70/100

MetOffice/socrates#33 · Opened Aug 6, 2026
Profiler logic tests definition not boolean logic Open

bug

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

MetOffice/lfric_core#444 · 1 comment · Opened Aug 5, 2026
Link to the LFRic_Core training developed by Scientific Systems Open

Content Module 3

Difficulty 2/5 1-3 hours Newbie friendliness 72/100

MetOffice/LFRic-Atmosphere-Training#328 · Opened Jul 27, 2026
Wind graph changing sizes with time steps, caused by min/max/mean watermark Open

bug

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

MetOffice/CSET#2321 · 2 comments · Opened Jul 25, 2026
Data licences show allow redistribution Open

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

MetOffice/simulation-systems#661 · Opened Jul 23, 2026
Documentation shows old-style `rose stem` command Open

documentation

Difficulty 1/5 Under an hour Newbie friendliness 78/100

MetOffice/lfric_apps#648 · Opened Jul 21, 2026
soil_moisture diagnostic mislabelled units kg kg-1 (should be kg m-2 / SMCL) Open

Difficulty 2/5 1-3 hours Newbie friendliness 74/100

MetOffice/lfric_apps#647 · Opened Jul 21, 2026
No errors are raised when [common]package value is empty Open

Difficulty 2/5 1-3 hours Newbie friendliness 64/100

MetOffice/CDDS#1003 · Opened Jul 21, 2026
typo 'Displacemnet' should be 'Displacement' Open

Difficulty 2/5 1-3 hours Newbie friendliness 85/100

MetOffice/jules#131 · 3 comments · Opened Jul 12, 2026
Add bullet point asking whether pull request is addressing a single logical change Open

documentation

Difficulty 1/5 1-3 hours Newbie friendliness 72/100

MetOffice/CSET#2255 · Opened Jul 7, 2026
Add development checklist item for ensuring recipe descriptions are sufficient Open

documentation

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

MetOffice/CSET#2254 · Opened Jul 7, 2026
Document common git how tos for working with branches-of-branches Open

documentation

Difficulty 2/5 Half a day Newbie friendliness 63/100

MetOffice/CSET#2253 · Opened Jul 7, 2026
Update working practice section Open

Difficulty 2/5 1-3 hours Newbie friendliness 70/100

MetOffice/simulation-systems#652 · Opened Jul 3, 2026
Clarify coordinate values in `02_Meshes.ipynb` Open

Difficulty 1/5 Under an hour Newbie friendliness 88/100

MetOffice/LFRic-Atmosphere-Training#283 · Opened Jun 30, 2026
Test creating directory like `<property object at 0x7c7dd7379120>` under the tests directory Open

Difficulty 2/5 1-3 hours Newbie friendliness 65/100

MetOffice/fab#583 · 1 comment · Opened Jun 26, 2026
Fab does not abort in case of analyse errors Open

good first issue

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

MetOffice/fab#577 · Opened Jun 22, 2026
Add recipe subfolder info to developer documentation Open

documentation

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

MetOffice/CMEW#478 · Opened Jun 11, 2026
Create unit test for StructuredDataset.variable_time_axis Open

Difficulty 2/5 1-3 hours Newbie friendliness 70/100

MetOffice/CDDS#949 · Opened Jun 4, 2026
Mention git ignored dev conf file in developer documentation Open

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

MetOffice/CMEW#459 · Opened Jun 2, 2026
Fix W2Vtrace definition in documentation Open

documentation

Difficulty 2/5 1-3 hours Newbie friendliness 74/100

MetOffice/lfric_core#381 · Opened May 29, 2026
Add variable stream info to developer documentation Open

documentation

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

MetOffice/CMEW#457 · Opened May 29, 2026
Add test for monsoon Open

needs refinement testing

Difficulty 2/5 1-2 days Newbie friendliness 72/100

MetOffice/CMEW#454 · Opened May 27, 2026
Update prerequisites Open

Difficulty 1/5 1-3 hours Newbie friendliness 68/100

MetOffice/CMEW#450 · Opened May 27, 2026
Enhance missing attribute error message in QC Open

Difficulty 2/5 1-3 hours Newbie friendliness 75/100

MetOffice/CDDS#933 · Opened May 21, 2026
Make QC fail upon error parsing dataset Open

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

MetOffice/CDDS#932 · Opened May 21, 2026
Cube builder cannot create custom vertical coordinate Open

🐜 bug

Difficulty 2/5 1-3 hours Newbie friendliness 78/100

MetOffice/ANTS#147 · Opened May 18, 2026
Add support for mpifort Open

good first issue Low priority

Difficulty 2/5 1-3 hours Newbie friendliness 75/100

MetOffice/fab#566 · Opened May 15, 2026
Update reference to rose_picker and XIOS Open

documentation

Difficulty 1/5 Under an hour Newbie friendliness 88/100

MetOffice/lfric_core#361 · Opened May 5, 2026
Remove use of `icontext` in `lfric_xios_action_mod` Open

enhancement

Difficulty 2/5 1-3 hours Newbie friendliness 65/100

MetOffice/lfric_core#321 · 1 comment · Opened Mar 31, 2026
Clarify argument handling in FabBase Open

good first issue

Difficulty 2/5 1-3 hours Newbie friendliness 74/100

MetOffice/fab#547 · 2 comments · Opened Mar 30, 2026
Improve cv validator error messages Open

enhancement

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

MetOffice/CDDS#863 · 2 comments · Opened Mar 20, 2026
Alternative license text required for HadGEM3-GA6-N216 Open

Difficulty 2/5 1-3 hours Newbie friendliness 67/100

MetOffice/gcmodeldev-cmor-tables#60 · Opened Feb 27, 2026
Jules release notes instructions are inconsistent Open

:blue_book:Documentation

Difficulty 1/5 Under an hour Newbie friendliness 68/100

MetOffice/simulation-systems#588 · Opened Feb 27, 2026
Add Subversion (SVN) Usage Guidance – LFRic Infrastructure Page Open

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

MetOffice/LFRic-Atmosphere-Training#131 · 1 comment · Opened Feb 9, 2026
Update ANTS installation instructions to use `-n` for conda env Open

📚 documentation

Difficulty 1/5 Under an hour Newbie friendliness 70/100

MetOffice/ANTS#62 · Opened Nov 25, 2025
Amend unassigned "inputerror" variable in extract Open

bug good first issue

Difficulty 1/5 Under an hour Newbie friendliness 65/100

MetOffice/CDDS#641 · Opened Oct 13, 2025
Improve description of run_bounds in mip_convert documentation Open

migrated

Difficulty 1/5 Under an hour Newbie friendliness 68/100

MetOffice/CDDS#542 · Opened Jun 13, 2025
Tests should not create files/directories in current working directory Open

migrated

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

MetOffice/CDDS#507 · Opened Jun 13, 2025

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