首页|Ningaloo Ni?o/Ni?a in CMIP6 Models: Characteristics, Mechanisms, and Climate Impacts

Ningaloo Ni?o/Ni?a in CMIP6 Models: Characteristics, Mechanisms, and Climate Impacts

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Abstract As a dominant climate mode of the southeast Indian Ocean, Ningaloo Ni?o/Ni?a has paramount impacts on regional climate and marine ecosystems. Using outputs from the latest phase of Coupled Model Intercomparison Project (CMIP6), we have systematically evaluated the simulation of Ningaloo Ni?o/Ni?a in the state‐of‐the‐art coupled models. Eighteen out of 28 CMIP6 models well reproduce the spatial pattern and seasonality of Ningaloo Ni?o/Ni?a, whereas the simulated amplitudes show large spread across the models. Main processes of the oceanic and atmospheric El Ni?o‐Southern Oscillation teleconnections and the coastal Bjerknes feedback are successfully captured by most of the CMIP6 models, but their uncertainties in the simulation are responsible for the inter‐model difference in amplitude. The CMIP6 models are also skillful in reproducing the regional climate impacts of Ningaloo Ni?o/Ni?a. Compared to Coupled Model Intercomparison Project Phase 5, a larger fraction of models in CMIP6 well reproduce the Ningaloo Ni?o/Ni?a, which provides a good hope for projecting its future changes.

Ningaloo Ni?o/Ni?aCMIP6 modelsENSO teleconnectioncoastal Bjerknes feedback

Jiaqing Xue、Hongpei Yang、Jing‐Jia Luo、Chaoxia Yuan、Toshio Yamagata、Boni Wang

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Nanjing University of Information Science and Technology

Jiangsu Meteorological Service Center

2022

Geophysical Research Letters

Geophysical Research Letters

EISCI
ISSN:0094-8276
年,卷(期):2022.49(19)
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