# A Brief Summary of ACCESS-CM2 Development post CMIP6 **URL:** \ **Category:** Working Group\ **Tags:** workshop, access-cm2, waves, talk, enso\ **Created:** [11 September 2023 00:57 UTC](https://forum.access-hive.org.au/t/a-brief-summary-of-access-cm2-development-post-cmip6/1358 "2023-09-11T00:57:25Z")\ **Posts on this page:** 1\ **Showing post:** 1
**Author:** ![dhb599](https://avatars.discourse-cdn.com/v4/letter/d/b9e5f3/32.png) [@dhb599](https://forum.access-hive.org.au/u/dhb599)\ **Post date:** [11 September 2023 00:57 UTC](https://forum.access-hive.org.au/t/a-brief-summary-of-access-cm2-development-post-cmip6/1358/1 "2023-09-11T00:57:25Z")
# Motivations - Improve the model performance in climate simulation: Reduce model biases seen in the ACCESS-CM2 historical simulation for CMIP6 - Comprehensive understanding of the ACCESS-CM2 ESNO simulation in comparison with other CMIP5/6 models around the world # Efforts and Results - Implementation of the FIO MASNUM Wave Model (MWM) into MOM5. Conduct PD simulations – for better comparison against observations. - enhance vertical mixing - deeper thermocline in the tropical ocean - better ENSO lifecycle - Applying Stochastic Forcing in the Ocean Interior (based on the work of Terry O’kane et al. with ACCESS-OM2). Various scaling factors (0.1 - 1.0) - Tuning Tropical Ocean Background Diffusivity and Viscosity to enhance vertical mixing for deeper thermocline - Higher horizontal resolution for the ocean (1 degree → 0.25 degree) - Current work: Back to 1-deg ocean using the same parameters for Gent-McWilliams eddy parameterisation (inspired by the “good ENSO simulation” in the 0.25 deg ocean runs) # Slides [Dave\_Bi\_Summary–CM2 development post CMIP6 .pptx](https://forum.access-hive.org.au/uploads/short-url/vyownZdCl3ZqLndg4ba65ScOtOt.pptx) (4.2 MB) --- _[View the full topic](https://forum.access-hive.org.au/t/a-brief-summary-of-access-cm2-development-post-cmip6/1358)._