scholarly journals Impact of explosive cyclones on the deep ocean in the North Pacific using an eddy-resolving ocean general circulation model

2017 ◽  
Vol 44 (1) ◽  
pp. 320-329 ◽  
Author(s):  
Akira Kuwano-Yoshida ◽  
Hideharu Sasaki ◽  
Yoshikazu Sasai
Keyword(s):  
General Circulation Model ◽  
North Pacific ◽  
General Circulation ◽  
Circulation Model ◽  
Deep Ocean ◽  
Ocean General Circulation Model ◽  
The North ◽  
Explosive Cyclones ◽  
Ocean General Circulation ◽  
The North Pacific

scholarly journals Simulation of global distribution of rare earth elements in the ocean using an ocean general circulation model

2021 ◽  
Author(s):  
Akira Oka ◽  
Hirofumi Tazoe ◽  
Hajime Obata
Keyword(s):  
North Pacific ◽  
General Circulation ◽  
North Pacific Ocean ◽  
Circulation Model ◽  
Ocean General Circulation Model ◽  
Vertical Profiles ◽  
Coastal Regions ◽  
The North ◽  
Ocean General Circulation ◽  
The North Pacific

AbstractIn this study, we report our ocean general circulation model simulations of the global distribution of rare earth elements (REEs) in the ocean. As previously reported (Oka et al. in Glob Biogeochem Cycles 23:1–16, 2009), the vertical profiles of REEs in the North Pacific Ocean are strongly controlled by the reversible scavenging process, and the systematic differences between REEs can be reproduced in the model by selecting an appropriate model parameter which controls affinity to particles. We here demonstrate that the external REE input from the coastal regions also plays a role in controlling the vertical profiles of dissolved REE and their inter-basin differences. The role of the external inputs is especially important for light REEs, such as neodymium (Nd). The linear increase in Nd concentration in the North Pacific Ocean cannot be sufficiently reproduced by the reversible scavenging alone; rather, a combination of the reversible scavenging and the external inputs is necessary. On the other hand, the distribution of heavy REEs, such as lutetium (Lu), can be broadly reproduced without the external inputs, suggesting that Lu has similarity with conservative nutrient-like tracer. When compared with REE observations compiled from both the recently obtained GEOTRACES dataset and pre-GEOTRACES reported data, our simulations successfully reproduced the overall features of these observations. Observational data suggested that the vertical profiles of REEs are not the same among the basins; our model simulations demonstrate that this feature can be clearly reproduced by considering both the reversible scavenging and the external REE inputs from the coastal regions.

An ecosystem model for the North Pacific embedded in a general circulation model

2000 ◽  
Vol 25 (2) ◽  
pp. 129-157 ◽  
Author(s):  
Michio Kawamiya ◽  
Michio J. Kishi ◽  
Nobuo Suginohara
Keyword(s):  
General Circulation Model ◽  
North Pacific ◽  
General Circulation ◽  
Circulation Model ◽  
Ecosystem Model ◽  
The North ◽  
The North Pacific
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