# Experiment Proposal: ACCESS-ESM1.5 in idealised worlds

**URL:** <https://forum.access-hive.org.au/t/experiment-proposal-access-esm1-5-in-idealised-worlds/1905>\
**Category:** Experiments\
**Tags:** experiment, working-group, esm, proposal\
**Created:** [7 March 2024 03:45 UTC](https://forum.access-hive.org.au/t/experiment-proposal-access-esm1-5-in-idealised-worlds/1905 "2024-03-07T03:45:50Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Dietmar\_Dommenget](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.access-hive.org.au/dietmar_dommenget/32/494_2.png) [@Dietmar\_Dommenget](https://forum.access-hive.org.au/u/Dietmar_Dommenget)\
**Post date:** [7 March 2024 03:45 UTC](https://forum.access-hive.org.au/t/experiment-proposal-access-esm1-5-in-idealised-worlds/1905/1 "2024-03-07T03:45:50Z")

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ACCESS-ESM1.5 in idealised worlds

We will run 300yrs long simulations with the ACCESS-ESM1.5 in which the land-ocean distribution is idealised to study ENSO and tropical basin interactions. We will do several such experiments with different land-coean configurations.

The aims are:

(1) Extend the capability of ACCESS for blue sky research  
(2) Test ENSO theories.  
(3) Build a basis for deep paleo studies.

Scientific motivation:

In a recent study such experiments have been done with a low-resolution GFDL model that resulted in highly interesting outcomes for ENSO theory and tropical basin interactions. They challenge our understanding of ENSO dynamics. See reprint:

[dommenget.and.hutchinson.enso.idealised.worlds.submitted.2024.pdf](https://users.monash.edu.au/~dietmard/dommenget.and.hutchinson.enso.idealised.worlds.submitted.2024.pdf)

Experiment Name: ESM1.5 idealised worlds  
People: Dietmar Dommenget and David Hutchinson  
Model: ACCESS-ESM1.5  
Configuration: default  
Initial conditions: idealised  
Run plan: single member 300yrs.  
Simulation details: idealised land sea configurations as in Dommenget and Hutchinson 2024, starting with the solo150 and twins experiments.  
Total KSUs required: 300KSU per experiment → about 3 to 10 experiments → so about 1 to 3MSU  
Total storage required: ~1TB temporary  
Outputs: TBA / (default) / only monthly means will be kept.  
Restarts: TBA  
Related articles: [dommenget.and.hutchinson.enso.idealised.worlds.submitted.2024.pdf](https://users.monash.edu.au/~dietmard/dommenget.and.hutchinson.enso.idealised.worlds.submitted.2024.pdf)

**Analysis:**

TBA

**Conclusion:**

TBA