Takashi Kikuchi

Lung immune prognostic index as a biomarker for predicting the benefit of immune checkpoint inhibitor plus chemotherapy in older patients with non-small cell lung cancer: a secondary analysis of the NEJ057 study

Takehiro Tozuka, Yoko Tsukita, Kohei Kushiro, Shinobu Hosokawa et autres

jp (code pays fourni par la source)

Sea‐Ice Deformations at the Submesoscale and Below During the Melting Season

Satoshi Kimura, Jinro Ukita, Amane Fujiwara, Takashi Kikuchi

Abstract Many sea‐ice models formulate sea‐ice rheology by a viscous‐plastic approach with an elliptical yield curve and a normal flow rule. However, it remains uncertain whether this formulation is suitable for finer‐resolution climate models in the warming Arctic. We analyze sea‐ice deformation …

jp (code pays fourni par la source)

Temporal changes in iodine-129 and radiocesium in the Canada Basin in the Arctic Ocean between 1993 and 2020

Yuichiro Kumamoto, Yasunori Hamajima, Shigeto Nishino, Mutsuo Inoue et autres

The Arctic Ocean plays an important role in global climate and global warming through freshwater and heat exchange with subarctic waters. A better understanding of circulation time scales in the Arctic Ocean is essential to predict changes in climate and biogeochemical cycling …

jp (code pays fourni par la source)

Changes in ocean circulation and dissolved oxygen/nutrient distributions in the Canadian Basin

Shigeto Nishino, Jinyoung Jung, Kyoung‐Ho Cho, William Appleman Williams et autres

The Arctic Ocean is facing dramatic environmental and ecosystem changes. To obtain the current baseline data, a coordinated multiship and multination pan-Arctic ship-based sampling campaign was implemented for the period between 2020 and 2022 under the project of Synoptic Arctic Survey (SAS). …

jp, kr, ca (code pays fourni par la source)

The Pacific water flow branches in the eastern Chukchi Sea

Robert S. Pickart, Peigen Lin, Frank B. Bahr, Leah Trafford McRaven et autres

The flow of Pacific-origin water across the Chukchi Sea shelf impacts the regional ecosystem in profound ways, yet the two current branches on the eastern shelf that carry the water from Bering Strait to Barrow Canyon – the Alaskan Coastal Current (ACC) …

us, cn, kr, jp, ca (code pays fourni par la source)

Atlantic-origin water extension into the Pacific Arctic induced an anomalous biogeochemical event

Shigeto Nishino, Jinyoung Jung, Kyoung‐Ho Cho, William J. Williams et autres

The Arctic Ocean is facing dramatic environmental and ecosystem changes. In this context, an international multiship survey project was undertaken in 2020 to obtain current baseline data. During the survey, unusually low dissolved oxygen and acidified water were found in a high-seas …

jp, kr, ca (code pays fourni par la source)

Formation and circulation of newly ventilated winter water in the western Beaufort Sea

Peigen Lin, Robert S. Pickart, Thomas J. Weingartner, Harper Lightfoot Simmons et autres

cn, us, jp (code pays fourni par la source)

Processes governing seasonal and interannual change of the Antarctic sea-ice area

Noriaki Kimura, Tomoyuki Onomura, Takashi Kikuchi

Abstract Seasonal and interannual variabilities of sea-ice area in the Southern Ocean were examined using daily sea-ice concentration and ice velocity products for 2003–2019, derived from Advanced Microwave Scanning Radiometer for EOS (AMSR-E) and AMSR2 data. This study quantified the contributions to …

jp (code pays fourni par la source)

Horizontal distribution of surface microplastic concentrations and water-column microplastic inventories in the Chukchi Sea, western Arctic Ocean

Takahito Ikenoue, R. Nakajima, Amane Fujiwara, Jonaotaro Onodera et autres

The recent influx of microplastics into the Arctic Ocean may increase environmental stress on the western Arctic marine ecosystem, which is experiencing significant sea-ice loss due to global warming. Quantitative data on microplastics in the western Arctic Ocean are very limited, and …

jp (code pays fourni par la source)

Shrink of an ocean gyre in the Pacific Arctic and Atlantification open a door of shadow zone

Shigeto Nishino, Jinyoung Jung, Kyoung‐Ho Cho, Bill Williams et autres

Abstract The Arctic Ocean is now facing dramatic environmental and ecosystem changes. In this context, an international multiship survey project was undertaken in 2020 to obtain current baseline data. For the first time, extremely low dissolved oxygen and acidified water were found …

jp, kr (code pays fourni par la source)

Fukushima-derived radiocesium in the western subarctic area of the North Pacific Ocean, Bering Sea, and Arctic Ocean in 2019 and 2020

Yuichiro Kumamoto, Michio Aoyama, Yasunori Hamajima, Mutsuo Inoue et autres

jp (code pays fourni par la source)

Performance of primary production algorithm using absorption coefficient of phytoplankton in the Pacific Arctic

Ryosuke Futsuki, Toru Hirawake, Amane Fujiwara, Hisatomo Waga et autres

jp, us (code pays fourni par la source)