Ocean Circulation in the Challenger Deep Derived From Super-Deep Underwater Glider Observation
Ocean circulation in the Challenger Deep is rarely investigated due to sparse observations. Based on hydrographic data collected by two super-deep Chinese "Sea-Wing" gliders during September–October 2018, we analyzed water properties and ocean circulation structures in this trench. Results...
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ftchacadsciensia:oai:ir.sia.cn/:173321/29357 2023-05-15T18:25:27+02:00 Ocean Circulation in the Challenger Deep Derived From Super-Deep Underwater Glider Observation Jiang, Huichang Xu HZ(徐洪周) Vetter, Philip A. Xie Q(谢强) Yu JC(俞建成) Shang, Xuekun Yu, Liu 2021 http://ir.sia.cn/handle/173321/29357 英语 eng Geophysical Research Letters http://ir.sia.cn/handle/173321/29357 cn.org.cspace.api.content.CopyrightPolicy@47cee5a2 Deep ocean circulation the Challenger Deep underwater glider volume transport water properties Geosciences Multidisciplinary MARIANA CURRENTS PACIFIC WATERS TRENCH FLOW Geology 期刊论文 2021 ftchacadsciensia 2021-11-05T01:05:52Z Ocean circulation in the Challenger Deep is rarely investigated due to sparse observations. Based on hydrographic data collected by two super-deep Chinese "Sea-Wing" gliders during September–October 2018, we analyzed water properties and ocean circulation structures in this trench. Results showed that the horizontal distribution of water properties is approximately a three layer structure, changing from a northeast-southwest structure to a north-south structure then to an east-west structure as the depth increases from 3,000 to 7,000m. This structure is a joint result of the water uplift, advection, and diffusion in the trench. The westward geostrophic flow, with 1.29Sv (1Sv=106m3 s−1) volume transport, dominates the deep layer of the Challenger Deep, gradually weakening with depth. The unexpectedly large volume transport, twice that of previous studies, might be due to temporal variations of LCDW (Lower Circumpolar Deep Water) intrusion from the Southern Ocean and different reference levels. Report Southern Ocean Shenyang Institute Of Automation ,Chinese Academy Of Sciences: SIA OpenIR Pacific Southern Ocean |
institution |
Open Polar |
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Shenyang Institute Of Automation ,Chinese Academy Of Sciences: SIA OpenIR |
op_collection_id |
ftchacadsciensia |
language |
English |
topic |
Deep ocean circulation the Challenger Deep underwater glider volume transport water properties Geosciences Multidisciplinary MARIANA CURRENTS PACIFIC WATERS TRENCH FLOW Geology |
spellingShingle |
Deep ocean circulation the Challenger Deep underwater glider volume transport water properties Geosciences Multidisciplinary MARIANA CURRENTS PACIFIC WATERS TRENCH FLOW Geology Jiang, Huichang Xu HZ(徐洪周) Vetter, Philip A. Xie Q(谢强) Yu JC(俞建成) Shang, Xuekun Yu, Liu Ocean Circulation in the Challenger Deep Derived From Super-Deep Underwater Glider Observation |
topic_facet |
Deep ocean circulation the Challenger Deep underwater glider volume transport water properties Geosciences Multidisciplinary MARIANA CURRENTS PACIFIC WATERS TRENCH FLOW Geology |
description |
Ocean circulation in the Challenger Deep is rarely investigated due to sparse observations. Based on hydrographic data collected by two super-deep Chinese "Sea-Wing" gliders during September–October 2018, we analyzed water properties and ocean circulation structures in this trench. Results showed that the horizontal distribution of water properties is approximately a three layer structure, changing from a northeast-southwest structure to a north-south structure then to an east-west structure as the depth increases from 3,000 to 7,000m. This structure is a joint result of the water uplift, advection, and diffusion in the trench. The westward geostrophic flow, with 1.29Sv (1Sv=106m3 s−1) volume transport, dominates the deep layer of the Challenger Deep, gradually weakening with depth. The unexpectedly large volume transport, twice that of previous studies, might be due to temporal variations of LCDW (Lower Circumpolar Deep Water) intrusion from the Southern Ocean and different reference levels. |
format |
Report |
author |
Jiang, Huichang Xu HZ(徐洪周) Vetter, Philip A. Xie Q(谢强) Yu JC(俞建成) Shang, Xuekun Yu, Liu |
author_facet |
Jiang, Huichang Xu HZ(徐洪周) Vetter, Philip A. Xie Q(谢强) Yu JC(俞建成) Shang, Xuekun Yu, Liu |
author_sort |
Jiang, Huichang |
title |
Ocean Circulation in the Challenger Deep Derived From Super-Deep Underwater Glider Observation |
title_short |
Ocean Circulation in the Challenger Deep Derived From Super-Deep Underwater Glider Observation |
title_full |
Ocean Circulation in the Challenger Deep Derived From Super-Deep Underwater Glider Observation |
title_fullStr |
Ocean Circulation in the Challenger Deep Derived From Super-Deep Underwater Glider Observation |
title_full_unstemmed |
Ocean Circulation in the Challenger Deep Derived From Super-Deep Underwater Glider Observation |
title_sort |
ocean circulation in the challenger deep derived from super-deep underwater glider observation |
publishDate |
2021 |
url |
http://ir.sia.cn/handle/173321/29357 |
geographic |
Pacific Southern Ocean |
geographic_facet |
Pacific Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_relation |
Geophysical Research Letters http://ir.sia.cn/handle/173321/29357 |
op_rights |
cn.org.cspace.api.content.CopyrightPolicy@47cee5a2 |
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1766206921111502848 |