Observed Upper Deep Branch of the Pacific Meridional Overturning Circulation North of New Guinea
文献类型：期刊论文
| 作者 | Zhang, Hang1,3; Wang, Jianing1,2,3 ; Wang, Fan1,2,3; Zhang, Zhixiang1,2,3; Ma, Qiang1,2,3
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| 刊名 | JOURNAL OF PHYSICAL OCEANOGRAPHY
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| 出版日期 | 2023-05-01 |
| 卷号 | 53期号:5页码:1375-1386 |
| ISSN号 | 0022-3670 |
| 关键词 | Pacific Ocean Mass fluxes transport Meridional overturning circulation Rossby waves In situ oceanic observations Annual variations |
| DOI | 10.1175/JPO-D-22-0180.1 |
| 通讯作者 | Wang, Jianing(wjn@qdio.ac.cn) |
| 英文摘要 | The deep channel north of New Guinea (NG) is the choke site for the upper deep branches of the Pacific meridional overturning circulation (U-PMOC). The U-PMOC is a crucial element of the ocean's climate and biogeochemi-cal systems. It carries the mixed water of the Upper Circumpolar Water and North Pacific Deep Water with a potential temperature over 1.2 degrees-2.2 degrees C. The pathway and volume transport of U-PMOC through the deep channel north of NG are revealed by mooring measurements from 2014 to 2019. Mean U-PMOC is located at 2000-3500 m with a velocity core at 2550 m and is directed eastward. The U-PMOC shows a strong seasonal variability with a direction reversal from June to September. The oceanic reanalysis product GLORYS12V1 well reproduces the observed U-PMOC and is thus used to es-timate the mean and standard deviation of U-PMOC's volume transport as 2.19 +/- 11.4 Sv (1 Sv = 106 m3 s-1) and to ex-plore the underlying dynamics of the U-PMOC. The seasonality of U-PMOC is induced by the vertical propagation of the Rossby energy through the upper ocean in the eastern Pacific to the deep ocean in the western Pacific. The mean eastward U-PMOC transport is forced by the zonal deep pressure gradient, which is mainly determined by the local upper-ocean processes above 500 m. |
| WOS关键词 | WATER ; OCEAN ; FLOW ; TRANSPORT |
| 资助项目 | Strategic Priority Research Program of the Chinese Academy of Sciences[XDA22000000] ; National Natural Science Foundation of China (NSFC)[91958204] ; National Natural Science Foundation of China (NSFC)[42222602] ; National Natural Science Foundation of China (NSFC)[42006003] ; National Natural Science Foundation of China (NSFC)[42106009] ; National Natural Science Foundation of China (NSFC)[42221005] ; National Natural Science Foundation of China (NSFC)[42090040] ; Science and Technology Innovation Project of Laoshan Laboratory[LSKJ202203100] ; Science and Technology Innovation Project of Laoshan Laboratory[LSKJ202202700] ; Youth Innovation Promotion Association CAS ; TS Scholar Program |
| WOS研究方向 | Oceanography |
| 语种 | 英语 |
| 出版者 | AMER METEOROLOGICAL SOC |
| WOS记录号 | WOS:000995813500002 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/183089]  |
| 专题 | 海洋研究所_海洋环流与波动重点实验室 |
| 通讯作者 | Wang, Jianing |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing, Peoples R China 2.Pilot Natl Lab Marine Sci & Technol Qingdao, Funct Lab Ocean Dynam & Climate, Qingdao, Peoples R China 3.Chinese Acad Sci, Inst Oceanol, Ctr Ocean Mega Sci, Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Hang,Wang, Jianing,Wang, Fan,et al. Observed Upper Deep Branch of the Pacific Meridional Overturning Circulation North of New Guinea[J]. JOURNAL OF PHYSICAL OCEANOGRAPHY,2023,53(5):1375-1386. |
| APA | Zhang, Hang,Wang, Jianing,Wang, Fan,Zhang, Zhixiang,&Ma, Qiang.(2023).Observed Upper Deep Branch of the Pacific Meridional Overturning Circulation North of New Guinea.JOURNAL OF PHYSICAL OCEANOGRAPHY,53(5),1375-1386. |
| MLA | Zhang, Hang,et al."Observed Upper Deep Branch of the Pacific Meridional Overturning Circulation North of New Guinea".JOURNAL OF PHYSICAL OCEANOGRAPHY 53.5(2023):1375-1386. |
入库方式： OAI收割
来源：海洋研究所
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