Decadal variations of Pacific Walker circulation tied to tropical Atlantic–Pacific trans-basin SST gradients
Bibliographic Data
| ID | 15549243 |
|---|---|
| Authors | Shuai‐Lei Yao (0000-0002-9300-0098, Institute of Atmospheric Physics, corresponding author), Shuai-Lei Yao, Jing‐Jia Luo (0000-0003-2181-0638, Nanjing University of Information Science and Technology), Jing-Jia Luo, Pao‐Shin Chu (0000-0002-8425-9559, University of Hawaiʻi at Mānoa), Pao-Shin Chu, Fei Zheng (0000-0003-3513-4255, Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)) |
| Year | 2023 |
| Volume | 18 |
| Issue | 6 |
| Pages | 064016-064016 |
| Publication date | 2023-04-28 |
| Peer Reviewed | Yes |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | Environmental Research Letters (JOURNAL) |
| Journal identifiers | ISSN: 1748-9326 • E-ISSN: 1748-9326 |
| Publisher | IOP Publishing (PUBLISHER • GB) |
| DOI | 10.1088/1748-9326/acd12f |
| OpenAlex | W4367302124 |
| Language | EN |
| Citations received | 1 |
| References cited | 59 |
During the modern satellite-monitoring era since ∼1979, the observed Pacific Walker circulation (PWC) presented a pronounced strengthening and robust westward-shifting, defying the model-projected weakening response to anthropogenic warming. The exact cause for the PWC decadal intensification and the corresponding observation-model disagreement remains indecisive. Using two targeted experiments wherein sea surface temperature (SST) anomalies in the tropical eastern Pacific and North Atlantic are separately restored to follow the observed history, we reveal that the North Atlantic-only SST warming and the tropical eastern Pacific-only SST cooling contribute partly to the PWC decadal adjustment. The North Atlantic SST warming triggers a significant westward displacement of PWC, while the tropical eastern Pacific SST cooling drives mainly the associated shifts of the large-scale atmospheric surface pressure centers. Further, we identify that the tropical Atlantic–eastern Pacific trans-basin SST gradients have dominated the PWC decadal variations over the past century. Our results highlight that a reliable representation of the simulated inter-basin warming contrast between the tropical Atlantic and the tropical eastern Pacific SSTs may be influential in correcting future projections of the PWC strength
Atlantic hurricane · Climatology · Pacific decadal oscillation · Sea surface temperature · Structural basin · Tropical Atlantic · Tropical cyclone · Walker circulation · Climate variability and models · Environmental Science · Marine and coastal ecosystems · Oceanographic and Atmospheric Processes · Geology · Oceanography
The ERA‐Interim reanalysis
Robust Responses of the Hydrological Cycle to Global Warming
The JRA-55 Reanalysis
The Version-2 Global Precipitation Climatology Project (GPCP) Monthly Precipitation Analysis (1979–Present)
Extended Reconstructed Sea Surface Temperature, Version 5 (ERSSTv5)
Recent global-warming hiatus tied to equatorial Pacific surface cooling
Model consistency for the underlying mechanisms for the Inter-decadal Pacific Oscillation-tropical Atlantic connection
| Unique citing works | 1 |
|---|---|
| Citations per year | 0,5 |
| Citation span | 2024 - 2024 (1) |
| Citation velocity | recent |
| Highly cited | No |
| Citation types | Neutral: 1 |