Observed three‐dimensional structure of ocean cooling induced by Pacific tropical cyclones
Abstract Sea surface cooling along tropical cyclone (TC) tracks has been well observed, but a complete understanding of the full three‐dimensional structure of upper ocean TC‐induced cooling is still needed. In this study, observed ocean temperature profiles derived from Argo floats and TC statistic...
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| Format: | Article |
| Language: | English |
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Wiley
2016-07-01
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| Series: | Geophysical Research Letters |
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| Online Access: | https://doi.org/10.1002/2016GL069605 |
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| author | Guihua Wang Lingwei Wu Nathaniel C. Johnson Zheng Ling |
| author_facet | Guihua Wang Lingwei Wu Nathaniel C. Johnson Zheng Ling |
| author_sort | Guihua Wang |
| collection | DOAJ |
| description | Abstract Sea surface cooling along tropical cyclone (TC) tracks has been well observed, but a complete understanding of the full three‐dimensional structure of upper ocean TC‐induced cooling is still needed. In this study, observed ocean temperature profiles derived from Argo floats and TC statistics from 1996 to 2012 are used to determine the three‐dimensional structure of TC‐induced cooling over the northwest Pacific. The average TC‐induced sea surface temperature change derived from Argo reaches −1.4°C, which agrees well with satellite‐derived estimates. The Argo profiles further reveal that this cooling can extend to a depth of ~30 m and can persist for about 20 days. The time scale of cooling recovery is somewhat longer in subsurface layers between a depth of ~10–15 m. Over the ocean domain where the mixed layer is shallower (deeper), the cooling is stronger (weaker), shallower (deeper), and more (less) persistent. The effect of initial MLD on the cooling derived from Argo observations may be only half of the idealized piecewise continuous model of tropical cyclone. These findings have implications for the total upper ocean heat content change induced by northwest Pacific TCs. |
| format | Article |
| id | doaj-art-80e8db7f0dce457e9b142625aef4a56b |
| institution | OA Journals |
| issn | 0094-8276 1944-8007 |
| language | English |
| publishDate | 2016-07-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geophysical Research Letters |
| spelling | doaj-art-80e8db7f0dce457e9b142625aef4a56b2025-08-20T01:51:54ZengWileyGeophysical Research Letters0094-82761944-80072016-07-0143147632763810.1002/2016GL069605Observed three‐dimensional structure of ocean cooling induced by Pacific tropical cyclonesGuihua Wang0Lingwei Wu1Nathaniel C. Johnson2Zheng Ling3Institute of Atmospheric Sciences, Department of Environmental Science and Enginnering Fudan University Shanghai ChinaState Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography State Oceanic Administration Hangzhou ChinaCooperative Institute for Climate Science Princeton University Princeton New Jersey USAState Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography State Oceanic Administration Hangzhou ChinaAbstract Sea surface cooling along tropical cyclone (TC) tracks has been well observed, but a complete understanding of the full three‐dimensional structure of upper ocean TC‐induced cooling is still needed. In this study, observed ocean temperature profiles derived from Argo floats and TC statistics from 1996 to 2012 are used to determine the three‐dimensional structure of TC‐induced cooling over the northwest Pacific. The average TC‐induced sea surface temperature change derived from Argo reaches −1.4°C, which agrees well with satellite‐derived estimates. The Argo profiles further reveal that this cooling can extend to a depth of ~30 m and can persist for about 20 days. The time scale of cooling recovery is somewhat longer in subsurface layers between a depth of ~10–15 m. Over the ocean domain where the mixed layer is shallower (deeper), the cooling is stronger (weaker), shallower (deeper), and more (less) persistent. The effect of initial MLD on the cooling derived from Argo observations may be only half of the idealized piecewise continuous model of tropical cyclone. These findings have implications for the total upper ocean heat content change induced by northwest Pacific TCs.https://doi.org/10.1002/2016GL069605tropical cycloneArgoocean cooling |
| spellingShingle | Guihua Wang Lingwei Wu Nathaniel C. Johnson Zheng Ling Observed three‐dimensional structure of ocean cooling induced by Pacific tropical cyclones Geophysical Research Letters tropical cyclone Argo ocean cooling |
| title | Observed three‐dimensional structure of ocean cooling induced by Pacific tropical cyclones |
| title_full | Observed three‐dimensional structure of ocean cooling induced by Pacific tropical cyclones |
| title_fullStr | Observed three‐dimensional structure of ocean cooling induced by Pacific tropical cyclones |
| title_full_unstemmed | Observed three‐dimensional structure of ocean cooling induced by Pacific tropical cyclones |
| title_short | Observed three‐dimensional structure of ocean cooling induced by Pacific tropical cyclones |
| title_sort | observed three dimensional structure of ocean cooling induced by pacific tropical cyclones |
| topic | tropical cyclone Argo ocean cooling |
| url | https://doi.org/10.1002/2016GL069605 |
| work_keys_str_mv | AT guihuawang observedthreedimensionalstructureofoceancoolinginducedbypacifictropicalcyclones AT lingweiwu observedthreedimensionalstructureofoceancoolinginducedbypacifictropicalcyclones AT nathanielcjohnson observedthreedimensionalstructureofoceancoolinginducedbypacifictropicalcyclones AT zhengling observedthreedimensionalstructureofoceancoolinginducedbypacifictropicalcyclones |