Contribution of El Niño amplitude change to tropical Pacific precipitation decline in the late 1990s
Equatorial central Pacific precipitation experienced a prominent decline in the late 1990s. This change was previously attributed to a La Niña-like mean sea surface temperature (SST) change in the Pacific Ocean associated with a phase switch of the Interdecadal Pacific Oscillation. Here, using a ser...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2019-09-01
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| Series: | Atmospheric and Oceanic Science Letters |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1080/16742834.2019.1633230 |
| _version_ | 1818725982824038400 |
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| author | Suqi GUO Renguang WU |
| author_facet | Suqi GUO Renguang WU |
| author_sort | Suqi GUO |
| collection | DOAJ |
| description | Equatorial central Pacific precipitation experienced a prominent decline in the late 1990s. This change was previously attributed to a La Niña-like mean sea surface temperature (SST) change in the Pacific Ocean associated with a phase switch of the Interdecadal Pacific Oscillation. Here, using a series of model experiments, the authors reveal that the El Niño-related interannual SST anomalies contributed largely to the precipitation decrease over the equatorial central Pacific. This El Niño SST effect was due to the change in the amplitude of El Niño events in the late 1990s. The 1980–98 decade had more large-amplitude El Niño events than the 1999–2014 decade. The nonlinear precipitation response to SST anomalies resulted in a larger decadal mean precipitation in the 1980–98 decade than in the 1999–2014 decade. The results highlight the importance of El Niño amplitude change in future climate change related to global warming. |
| first_indexed | 2024-12-17T21:50:58Z |
| format | Article |
| id | doaj.art-05a32af769d54c53b2797861fc6835d9 |
| institution | Directory Open Access Journal |
| issn | 1674-2834 2376-6123 |
| language | English |
| last_indexed | 2024-12-17T21:50:58Z |
| publishDate | 2019-09-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Atmospheric and Oceanic Science Letters |
| spelling | doaj.art-05a32af769d54c53b2797861fc6835d92022-12-21T21:31:17ZengKeAi Communications Co., Ltd.Atmospheric and Oceanic Science Letters1674-28342376-61232019-09-0112535536010.1080/16742834.2019.16332301633230Contribution of El Niño amplitude change to tropical Pacific precipitation decline in the late 1990sSuqi GUO0Renguang WU1Institute of Atmospheric Physics, Chinese Academy of SciencesInstitute of Atmospheric Physics, Chinese Academy of SciencesEquatorial central Pacific precipitation experienced a prominent decline in the late 1990s. This change was previously attributed to a La Niña-like mean sea surface temperature (SST) change in the Pacific Ocean associated with a phase switch of the Interdecadal Pacific Oscillation. Here, using a series of model experiments, the authors reveal that the El Niño-related interannual SST anomalies contributed largely to the precipitation decrease over the equatorial central Pacific. This El Niño SST effect was due to the change in the amplitude of El Niño events in the late 1990s. The 1980–98 decade had more large-amplitude El Niño events than the 1999–2014 decade. The nonlinear precipitation response to SST anomalies resulted in a larger decadal mean precipitation in the 1980–98 decade than in the 1999–2014 decade. The results highlight the importance of El Niño amplitude change in future climate change related to global warming.http://dx.doi.org/10.1080/16742834.2019.1633230Tropical Pacific precipitation declineInterdecadal Pacific Oscillation phase switchinterannual SST effectlarge-amplitude El Niño events |
| spellingShingle | Suqi GUO Renguang WU Contribution of El Niño amplitude change to tropical Pacific precipitation decline in the late 1990s Atmospheric and Oceanic Science Letters Tropical Pacific precipitation decline Interdecadal Pacific Oscillation phase switch interannual SST effect large-amplitude El Niño events |
| title | Contribution of El Niño amplitude change to tropical Pacific precipitation decline in the late 1990s |
| title_full | Contribution of El Niño amplitude change to tropical Pacific precipitation decline in the late 1990s |
| title_fullStr | Contribution of El Niño amplitude change to tropical Pacific precipitation decline in the late 1990s |
| title_full_unstemmed | Contribution of El Niño amplitude change to tropical Pacific precipitation decline in the late 1990s |
| title_short | Contribution of El Niño amplitude change to tropical Pacific precipitation decline in the late 1990s |
| title_sort | contribution of el nino amplitude change to tropical pacific precipitation decline in the late 1990s |
| topic | Tropical Pacific precipitation decline Interdecadal Pacific Oscillation phase switch interannual SST effect large-amplitude El Niño events |
| url | http://dx.doi.org/10.1080/16742834.2019.1633230 |
| work_keys_str_mv | AT suqiguo contributionofelninoamplitudechangetotropicalpacificprecipitationdeclineinthelate1990s AT renguangwu contributionofelninoamplitudechangetotropicalpacificprecipitationdeclineinthelate1990s |