Influence of SST‐Precipitation Relationship Over the Equatorial Western Pacific on Simulation of the Madden‐Julian Oscillation
Abstract Capabilities of 43 models of the Coupled Model Intercomparison Project Phase 6 (CMIP6) to simulate the Madden‐Julian Oscillation (MJO) were compared in this study. Models with higher MJO simulation skills reproduce organized large‐scale convection more frequently over the equatorial western...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2024-11-01
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| Series: | Geophysical Research Letters |
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| Online Access: | https://doi.org/10.1029/2024GL110485 |
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| _version_ | 1849773193903996928 |
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| author | Guiwan Chen Jian Ling Ziniu Xiao Chongyin Li Chidong Zhang |
| author_facet | Guiwan Chen Jian Ling Ziniu Xiao Chongyin Li Chidong Zhang |
| author_sort | Guiwan Chen |
| collection | DOAJ |
| description | Abstract Capabilities of 43 models of the Coupled Model Intercomparison Project Phase 6 (CMIP6) to simulate the Madden‐Julian Oscillation (MJO) were compared in this study. Models with higher MJO simulation skills reproduce organized large‐scale convection more frequently over the equatorial western Pacific (EWP), suggesting that MJO simulations are tightly connected to organization of large‐scale precipitation over the EWP. MJO simulation skills are not significantly correlated with the mean sea surface temperature (SST) over the EWP, but tightly connected to SST threshold for convection there. The top simulations exhibit lower SST threshold and more realistic SST‐precipitation relationship over the EWP, suggesting that convection can be organized more efficiently and intensified more rapidly with the increasing SST in these simulations. Our results emphasize that reproducing the relationship between SST and large‐scale precipitation over the EWP is critical to MJO simulations. |
| format | Article |
| id | doaj-art-286b0cca200d467ebd405fa509fbc25b |
| institution | DOAJ |
| issn | 0094-8276 1944-8007 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geophysical Research Letters |
| spelling | doaj-art-286b0cca200d467ebd405fa509fbc25b2025-08-20T03:02:07ZengWileyGeophysical Research Letters0094-82761944-80072024-11-015121n/an/a10.1029/2024GL110485Influence of SST‐Precipitation Relationship Over the Equatorial Western Pacific on Simulation of the Madden‐Julian OscillationGuiwan Chen0Jian Ling1Ziniu Xiao2Chongyin Li3Chidong Zhang4Key Laboratory of Earth System Numerical Modeling and Application Institute of Atmospheric Physics Beijing ChinaKey Laboratory of Earth System Numerical Modeling and Application Institute of Atmospheric Physics Beijing ChinaKey Laboratory of Earth System Numerical Modeling and Application Institute of Atmospheric Physics Beijing ChinaState Key Laboratory of Numerical Modelling for Atmospheric Sciences and Geophysical Fluid Dynamics Institute of Atmospheric Physics Beijing ChinaNOAA Pacific Marine Environmental Laboratory Seattle WA USAAbstract Capabilities of 43 models of the Coupled Model Intercomparison Project Phase 6 (CMIP6) to simulate the Madden‐Julian Oscillation (MJO) were compared in this study. Models with higher MJO simulation skills reproduce organized large‐scale convection more frequently over the equatorial western Pacific (EWP), suggesting that MJO simulations are tightly connected to organization of large‐scale precipitation over the EWP. MJO simulation skills are not significantly correlated with the mean sea surface temperature (SST) over the EWP, but tightly connected to SST threshold for convection there. The top simulations exhibit lower SST threshold and more realistic SST‐precipitation relationship over the EWP, suggesting that convection can be organized more efficiently and intensified more rapidly with the increasing SST in these simulations. Our results emphasize that reproducing the relationship between SST and large‐scale precipitation over the EWP is critical to MJO simulations.https://doi.org/10.1029/2024GL110485Madden‐Julian OscillationSST‐precipitation relationshipMJO simulation |
| spellingShingle | Guiwan Chen Jian Ling Ziniu Xiao Chongyin Li Chidong Zhang Influence of SST‐Precipitation Relationship Over the Equatorial Western Pacific on Simulation of the Madden‐Julian Oscillation Geophysical Research Letters Madden‐Julian Oscillation SST‐precipitation relationship MJO simulation |
| title | Influence of SST‐Precipitation Relationship Over the Equatorial Western Pacific on Simulation of the Madden‐Julian Oscillation |
| title_full | Influence of SST‐Precipitation Relationship Over the Equatorial Western Pacific on Simulation of the Madden‐Julian Oscillation |
| title_fullStr | Influence of SST‐Precipitation Relationship Over the Equatorial Western Pacific on Simulation of the Madden‐Julian Oscillation |
| title_full_unstemmed | Influence of SST‐Precipitation Relationship Over the Equatorial Western Pacific on Simulation of the Madden‐Julian Oscillation |
| title_short | Influence of SST‐Precipitation Relationship Over the Equatorial Western Pacific on Simulation of the Madden‐Julian Oscillation |
| title_sort | influence of sst precipitation relationship over the equatorial western pacific on simulation of the madden julian oscillation |
| topic | Madden‐Julian Oscillation SST‐precipitation relationship MJO simulation |
| url | https://doi.org/10.1029/2024GL110485 |
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