El Niño Magnitude and Western Pacific Warm Pool Displacement. Part I: Historical Insights from CMIP6 Models
Observations indicate a robust relationship between the magnitude of El Niño events and the longitudinal displacement of the eastern edge of the Western Pacific Warm Pool (WPWP). Are the state-of-the-art coupled models also capturing this strong relationship? Here, we address this question by analyz...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2025-06-01
|
| Series: | Atmosphere |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4433/16/6/680 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1839654815830900736 |
|---|---|
| author | Zhuoxin Gu De-Zheng Sun |
| author_facet | Zhuoxin Gu De-Zheng Sun |
| author_sort | Zhuoxin Gu |
| collection | DOAJ |
| description | Observations indicate a robust relationship between the magnitude of El Niño events and the longitudinal displacement of the eastern edge of the Western Pacific Warm Pool (WPWP). Are the state-of-the-art coupled models also capturing this strong relationship? Here, we address this question by analyzing the Coupled Model Intercomparison Project Phase 6 (CMIP6) models. The results show that 31 out of 33 models replicate the observed strong correlation between El Niño magnitude and WPWP displacement. However, the models overestimate both El Niño strength and the extent of eastward WPWP movement, while underrepresenting the inter-event variability. These findings support the notion that El Niño may be largely regarded as an eastward extension of the WPWP, while also highlighting some model–observation discrepancies that may warrant particular attention. |
| format | Article |
| id | doaj-art-5219d0c9f77f47e1aebef88e7a480f36 |
| institution | Matheson Library |
| issn | 2073-4433 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Atmosphere |
| spelling | doaj-art-5219d0c9f77f47e1aebef88e7a480f362025-06-25T13:27:44ZengMDPI AGAtmosphere2073-44332025-06-0116668010.3390/atmos16060680El Niño Magnitude and Western Pacific Warm Pool Displacement. Part I: Historical Insights from CMIP6 ModelsZhuoxin Gu0De-Zheng Sun1Department of Atmospheric and Oceanic Sciences, Fudan University, Shanghai 200438, ChinaNanjing-Helsinki Institute in Atmospheric and Earth System Sciences, Nanjing University-Suzhou Campus, Suzhou 215163, ChinaObservations indicate a robust relationship between the magnitude of El Niño events and the longitudinal displacement of the eastern edge of the Western Pacific Warm Pool (WPWP). Are the state-of-the-art coupled models also capturing this strong relationship? Here, we address this question by analyzing the Coupled Model Intercomparison Project Phase 6 (CMIP6) models. The results show that 31 out of 33 models replicate the observed strong correlation between El Niño magnitude and WPWP displacement. However, the models overestimate both El Niño strength and the extent of eastward WPWP movement, while underrepresenting the inter-event variability. These findings support the notion that El Niño may be largely regarded as an eastward extension of the WPWP, while also highlighting some model–observation discrepancies that may warrant particular attention.https://www.mdpi.com/2073-4433/16/6/680CMIP6 modelsEl Niño magnitudeWPWP displacementdiversity |
| spellingShingle | Zhuoxin Gu De-Zheng Sun El Niño Magnitude and Western Pacific Warm Pool Displacement. Part I: Historical Insights from CMIP6 Models Atmosphere CMIP6 models El Niño magnitude WPWP displacement diversity |
| title | El Niño Magnitude and Western Pacific Warm Pool Displacement. Part I: Historical Insights from CMIP6 Models |
| title_full | El Niño Magnitude and Western Pacific Warm Pool Displacement. Part I: Historical Insights from CMIP6 Models |
| title_fullStr | El Niño Magnitude and Western Pacific Warm Pool Displacement. Part I: Historical Insights from CMIP6 Models |
| title_full_unstemmed | El Niño Magnitude and Western Pacific Warm Pool Displacement. Part I: Historical Insights from CMIP6 Models |
| title_short | El Niño Magnitude and Western Pacific Warm Pool Displacement. Part I: Historical Insights from CMIP6 Models |
| title_sort | el nino magnitude and western pacific warm pool displacement part i historical insights from cmip6 models |
| topic | CMIP6 models El Niño magnitude WPWP displacement diversity |
| url | https://www.mdpi.com/2073-4433/16/6/680 |
| work_keys_str_mv | AT zhuoxingu elninomagnitudeandwesternpacificwarmpooldisplacementpartihistoricalinsightsfromcmip6models AT dezhengsun elninomagnitudeandwesternpacificwarmpooldisplacementpartihistoricalinsightsfromcmip6models |