Large-scale structure of trace gas and aerosol distributions over the western Pacific Ocean during the Transport and Chemical Evolution Over the Pacific (TRACE-P) experiment

2003 ◽  
Vol 108 (D21) ◽  
Author(s):  
Meigen Zhang ◽  
Itsushi Uno ◽  
Gregory R. Carmichael ◽  
Hajime Akimoto ◽  
Zifa Wang ◽  
...  
Keyword(s):  
Pacific Ocean ◽  
Chemical Evolution ◽  
Large Scale ◽  
Large Scale Structure ◽  
Scale Structure ◽  
Western Pacific ◽  
Trace Gas ◽  
Western Pacific Ocean ◽  
The Pacific ◽  
The Western Pacific

scholarly journals Multi-decadal trends in the tropical Pacific western boundary currents retrieved from historical hydrological observations

2021 ◽  
Author(s):  
Shijian Hu ◽  
Xi Lu ◽  
Shihan Li ◽  
Fan Wang ◽  
Cong Guan ◽  
...  
Keyword(s):  
Pacific Ocean ◽  
Ocean Circulation ◽  
Large Scale ◽  
Western Pacific ◽  
North Equatorial Current ◽  
Western Pacific Ocean ◽  
The North ◽  
Tropical Western Pacific ◽  
Decadal Trend ◽  
The Western Pacific

AbstractAs large-scale ocean circulation is a key regulator in the redistribution of oceanic energy, evaluating the multi-decadal trends in the western Pacific Ocean circulation under global warming is essential for not only understanding the basic physical processes but also predicting future climate change in the western Pacific. Employing the hydrological observations of World Ocean Atlas 2018 (WOA18) from 1955 to 2017, this study calculated the geostrophic currents, volume transport and multi-decadal trends for the North Equatorial Current (NEC), the North Equatorial Countercurrent (NECC), the Mindanao Current (MC), the Kuroshio Current (KC) in the origin and the New Guinea Coastal Undercurrent (NGCUC) within tropical western Pacific Ocean over multi-decades. Furthermore, this study examined the contributions of temperature and salinity variations. The results showed significant strengthening trends in NEC, MC and NGCUC over the past six decades, which is mainly contributed by temperature variations and consistent with the tendency in the dynamic height pattern. Zonal wind stress averaged over the western Pacific Ocean in the same latitude of each current represents the decadal variation and multi-decadal trends in corresponding ocean currents, indicating that the trade wind forcing plays an important role in the decadal trend in the tropical western Pacific circulation. Uncertainties in the observed hydrological data and trends in the currents over the tropical western Pacific are also discussed. Given that the WOA18 dataset covers most of the historical hydrological sampling data for the tropical western Pacific, this paper provides important observational information on the multi-decadal trend of the large-scale ocean circulation in the western Pacific.

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