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Howard, Emma, Woolnough, Steven, Klingaman, Nicholas, Shipley, Daniel, Sanchez, Claudio, Peatman, Simon C., Birch, Cathryn E. and Matthews, Adrian J. 
ORCID: https://orcid.org/0000-0003-0492-1168
(2024)
Evaluation of multi-season convection permitting atmosphere - mixed layer ocean simulations of the Maritime Continent.
Geoscientific Model Development, 17 (9).
3815–3837.
ISSN 1991-9603
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Abstract
A multi-season convection-permitting regional climate simulation of the Maritime Continent (MC) using the Met Office Unified Model (MetUM) with 2.2 km grid spacing is presented and evaluated. The simulations pioneer the use of atmosphere–ocean coupling with the multi-column K profile parametrisation (KPP) mixed-layer ocean model in atmospheric convection-permitting climate simulations. Comparisons are made against a convection-parametrised simulation in which it is nested and which in turn derives boundary conditions from the ERA5 reanalysis. This paper describes the configuration, performance of the mean state and variability in the two simulations compared against observational datasets. The models have both minor sea surface temperature (SST) and wet precipitation biases. The diurnal cycle, representation of equatorial waves, and relationship between SST and precipitation are all improved in the convection-permitting model compared to the convection-parametrised model. The Madden–Julian oscillation (MJO) is present in both models with a faster-than-observed propagation speed. However, it is unclear whether fidelity of the MJO simulation is inherent to the model or whether it predominantly arises from the forcing at the boundaries.
| Item Type: | Article |
|---|---|
| Additional Information: | Financial support: This work was funded by the UK National Environmental Research Council (NERC) TerraMaris project (grant no. NE/R016739/1). Stephen Woolnough was also supported by the National Centre for Atmospheric Science including through the NERC National Capability International Programmes Award (grant no. NE/X006263/1). |
| Uncontrolled Keywords: | earth and planetary sciences(all),modelling and simulation,sdg 13 - climate action ,/dk/atira/pure/subjectarea/asjc/1900 |
| Faculty \ School: | Faculty of Science > School of Natural Sciences (former - to 2024) Faculty of Science > School of Environmental Sciences University of East Anglia Research Groups/Centres > Theme - ClimateUEA |
| UEA Research Groups: | Faculty of Science > Research Groups > Centre for Ocean and Atmospheric Sciences Faculty of Science > Research Groups > Fluids & Structures Faculty of Science > Research Groups > Numerical Simulation, Statistics & Data Science |
| Related URLs: | |
| Depositing User: | LivePure Connector |
| Date Deposited: | 20 Mar 2024 09:31 |
| Last Modified: | 07 Nov 2024 12:47 |
| URI: | https://ueaeprints.uea.ac.uk/id/eprint/94727 |
| DOI: | 10.5194/gmd-2023-165 |
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