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Minxing Dong, Jichao Yang, Yushan Fu, Tengfei Fu, Qing Zhao, Xuelei Zhang, Qinzeng Xu and Wenquan Zhang
The soft coral order Alcyonacea is a common coral found in the deep sea and plays a crucial role in the deep-sea ecosystem. This study aims to predict the distribution of Alcyonacea in the western Pacific Ocean using four machine learning-based species d...
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Futo Ueda, Hiroto Tanouchi, Nobuyuki Egusa and Takuya Yoshihiro
River water-level prediction is crucial for mitigating flood damage caused by torrential rainfall. In this paper, we attempt to predict river water levels using a deep learning model based on radar rainfall data instead of data from upstream hydrological...
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Andrei Kholmogorov, Vladimir Ponomarev, Nadezhda Syrbu and Svetlana Shkorba
Dissolved methane coming from its various sources is an important component of seawater. Finding these probable sources allows for the determination of potential oil and/or gas deposit areas. From an ecological point of view, methane transport studies ca...
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Tadaharu Ishikawa and Ryosuke Akoh
In the upper and middle reaches of rivers in Japan, river channels used to meander in a comparatively narrow floodplain and heavy rain runoff used to naturally expand over the entire floodplain, retarding floods toward the downstream. Recent continuous l...
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Yuliya Koudryashova, Tatiana Chizhova, Mutsuo Inoue, Kazuichi Hayakawa, Seiya Nagao, Evgeniya Marina and Rodrigo Mundo
A vertical pattern of fractionated polycyclic aromatic hydrocarbons (PAH) was studied in the Japan Basin in the Sea of Japan. The highest PAH concentration was found in the mesopelagic realm, possibly resulting from deep convection and/or subduction of i...
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Myung Jin Hyun, Jongseok Won, Dong Han Choi, Howon Lee, Yeonjung Lee, Charity Mijin Lee, Chan Hong Park and Jae Hoon Noh
The CHEMTAX program has been widely used to estimate community composition based on major pigment concentrations in seawater. However, because CHEMTAX is an underdetermined optimization algorithm, underdetermined bias has remained an unsolved problem sin...
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Hae-young Choi, Hee-chan Choi, Sung Kim, Hyun-ju Oh and Seok-hyun Youn
The ecology of the mesopelagic fish genus Trachipterus, which is rarely found in oceans, remains unclear. In this study, we found 22 eggs of T. trachypterus and T. jacksonensis around the Ulleung Basin of the East/Japan Sea during ichthyoplankton surveys...
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Linyao Dong, Yiwei Guo, Wenjian Tang, Wentao Xu and Zhongjie Fan
Precise evaluation of the correlations among precipitation, groundwater and river water enhance our understanding on regional hydrological circulation and water resource management. The innovative and efficient use of wavelet analysis has been able to id...
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Dmitry Stepanov, Vladimir Fomin, Anatoly Gusev and Nikolay Diansky
The driving mechanisms of mesoscale processes and associated heat transport in the Japan/East Sea (JES) from 1990 to 2010 were examined using eddy-resolving ocean model simulations. The simulated circulation showed correctly reproduced JES major basin-sc...
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Zexun Wei, Haidong Pan, Tengfei Xu, Yonggang Wang and Jian Wang
As a ubiquitous movement in the ocean, tides are vital for marine life and numerous marine activities such as fishing and ocean engineering. Tidal dynamics are complicated in the East Asian marginal seas (EAMS) due to changing complex topography and coas...
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