SCSIO OpenIR  > 热带海洋环境国家重点实验室(LTO)
Targeted observation analysis of a Northwestern Tropical Pacific Ocean mooring array using an ensemble-based method
Liu, Danian1; Zhu, Jiang1,2; Shu, Yeqiang; Wang, Dongxiao; Wang, Weiqiang; Yan, Changxiang2; Zhou, Wei
2018
Source PublicationOCEAN DYNAMICS
ISSN1616-7341
Volume68Issue:9Pages:1109
AbstractAn important supplement for ocean observing systems, the Northwestern Tropical Pacific Ocean (NWTPO) mooring array including 15 moorings equipped with Acoustic Doppler Current Profilers (ADCP) devices was developed by the Chinese Academy of Sciences and deployed in 2013. This study assessed the performance of this mooring array in monitoring the intra-seasonal and low-frequency (above 91 days) variability of oceanic currents by conducting targeted observation analyses using an ensemble-based method. Key regions for monitoring intra-seasonal variability of the NWTPO circulation are the equator, Indonesian throughflow (ITF), headstream of the North Equatorial Countercurrent (NECC), and Subtropical Countercurrent (STCC). For monitoring intra-seasonal variability, the range of each mooring is confined to a local scale. Therefore, NWTPO moorings cannot adequately resolve intra-seasonal variability in areas of the ITF, the headstream of the NECC, and STCC due to location constraints of the moorings. For monitoring low-frequency variability of NWTPO circulation, the key regions are the Western Boundary Current (WBC), NECC, and the Equatorial Undercurrent (EUC). NWTPO moorings performed relatively well in monitoring the low-frequency variability, as indicated by the strong background correlations between each of the currents. The NWTPO mooring array plays an important role in monitoring the location and intensity of background currents. Because moorings are costly and require a high-density distribution for optimal performance, understanding the multi-timescale dynamical nature of the NWTPO current system is critical for the deploying future moorings in this region.
DepartmentLTO
KeywordTargeted observation analysis Data assimilation Mooring array
DOI10.1007/s10236-018-1188-y
Citation statistics
Document Type期刊论文
Identifierhttp://ir.scsio.ac.cn/handle/344004/17580
Collection热带海洋环境国家重点实验室(LTO)
Affiliation1.Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou, Guangdong, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
3.Chinese Acad Sci, Inst Atmospher Phys, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Liu, Danian,Zhu, Jiang,Shu, Yeqiang,et al. Targeted observation analysis of a Northwestern Tropical Pacific Ocean mooring array using an ensemble-based method[J]. OCEAN DYNAMICS,2018,68(9):1109, 1119.
APA Liu, Danian.,Zhu, Jiang.,Shu, Yeqiang.,Wang, Dongxiao.,Wang, Weiqiang.,...&Zhou, Wei.(2018).Targeted observation analysis of a Northwestern Tropical Pacific Ocean mooring array using an ensemble-based method.OCEAN DYNAMICS,68(9),1109.
MLA Liu, Danian,et al."Targeted observation analysis of a Northwestern Tropical Pacific Ocean mooring array using an ensemble-based method".OCEAN DYNAMICS 68.9(2018):1109.
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