Variation of the North Equatorial Current, Mindanao Current, and Kuroshio Current in a high-resolution data assimilation during 2008–2012

2014 ◽  
Vol 31 (6) ◽  
pp. 1445-1459 ◽  
Author(s):  
Fangguo Zhai ◽  
Qingye Wang ◽  
Fujun Wang ◽  
Dunxin Hu
2009 ◽  
Vol 65 (3) ◽  
pp. 325-333 ◽  
Author(s):  
Yuji Kashino ◽  
Norievill España ◽  
Fadli Syamsudin ◽  
Kelvin J. Richards ◽  
Tommy Jensen ◽  
...  

SOLA ◽  
2014 ◽  
Vol 10 (0) ◽  
pp. 145-149 ◽  
Author(s):  
Takuya Kawabata ◽  
Kosuke Ito ◽  
Kazuo Saito

Abstract.—The Japanese eel, Anguilla japonica, is an important food fish in East Asia, and catches of glass eels and of eels in freshwater appear to have declined dramatically in recent decades, causing increasing concern for the health of wild stocks. During that time, research efforts to understand its biology have progressed considerably. The spawning area was successfully outlined to the west of the Mariana Islands in 1991, and other research suggests that their recruitment success may be related to El Niño events, which appear to affect the transfer of leptocephali from the north equatorial current into the Kuroshio Current. Otolith microstructure and microchemistry studies have revealed various aspects of their early life history that relate to their oceanic larval migration. The discovery of sea eels that live in marine habitats without entering freshwater may change the common understanding of freshwater eel ecology and affect management plans. Most genetic studies suggest that the Japanese eel is composed of a single panmictic population throughout East Asia. Therefore, international management is needed among the countries of China, Taiwan, Korea, and Japan, where glass eels recruit from a common stock and are used extensively for aquaculture.


2018 ◽  
Vol 24 ◽  
pp. 85-90 ◽  
Author(s):  
Henrik Finsberg ◽  
Gabriel Balaban ◽  
Stian Ross ◽  
Trine F. Håland ◽  
Hans Henrik Odland ◽  
...  

2017 ◽  
Vol 33 (11) ◽  
pp. e2863 ◽  
Author(s):  
Gabriel Balaban ◽  
Henrik Finsberg ◽  
Hans Henrik  Odland ◽  
Marie E. Rognes ◽  
Stian Ross ◽  
...  

2008 ◽  
Vol 23 (3) ◽  
pp. 373-391 ◽  
Author(s):  
Qingyun Zhao ◽  
John Cook ◽  
Qin Xu ◽  
Paul R. Harasti

Abstract A high-resolution data assimilation system is under development at the Naval Research Laboratory (NRL). The objective of this development is to assimilate high-resolution data, especially those from Doppler radars, into the U.S. Navy’s Coupled Ocean–Atmosphere Mesoscale Prediction System to improve the model’s capability and accuracy in short-term (0–6 h) prediction of hazardous weather for nowcasting. A variational approach is used in this system to assimilate the radar observations into the model. The system is upgraded in this study with new capabilities to assimilate not only the radar radial-wind data but also reflectivity data. Two storm cases are selected to test the upgraded system and to study the impact of radar data assimilation on model forecasts. Results from the data assimilation experiments show significant improvements in storm prediction especially when both radar radial-wind and reflectivity observations are assimilated and the analysis incremental fields are adequately constrained by the model’s dynamics and properly adjusted to satisfy the model’s thermodynamical balance.


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