Land working group, meeting notes 2025

Meeting Minutes

Date: July 1, 2025
Attendees: 8


1. Feedback from conferences

  • UKMO (@inh599 ):

    • Interest in high-resolution and intersection with ML for weather forecasting. The land surface starts impacting the performance when running at high resolution. Hence, interest and questions around ML to replace some processes.
    • People want to collaborate more with us on fire, methane cycle, plant functional types…
    • Interest in benchcab from the JULES community
    • Getting CABLE in the NGMS-based JULES should be easier than JULES with the UM because the I/O would be easier.
    • Discussion on LFRic and when to move to it. Nobody thought there was a benefit in moving to it quickly.
  • AMOS:

    • Interest in the Australian PFTs.
    • Session on transition to net-zero, interest in analysing the carbon cycle in ACCESS-ESM1.5 simulations for this optic.

2. New MPI implementation presentation

  • Using a Parallel I/O approach.
  • Introducing NCAR’s Parallel IO library as a dependency for MPI builds
  • Unifying the serial and parallel drivers
  • Redesign of the CABLE’s I/O routines to enable the implementation of parallel I/O

3. ACCESS-NRI Work plan FY25-26

  • Highlighted work items of interest to the working group