Zobrazeno 1 - 10
of 111
pro vyhledávání: '"Takuya Itaki"'
Publikováno v:
Antarctic Record, Vol 68, Pp 21-35 (2024)
The first systematic sediment survey by the icebreaker Shirase (AGB-5003) was conducted during the 61st Japanese Antarctic Research Expedition (JARE-61). Sediment samples were obtained from a total of 28 sites in 3 areas of the Totten Glacier front
Externí odkaz:
https://doaj.org/article/44d2df4290154f92829bebc3a9bee8f1
Autor:
Mengfan Chu, Rui Bao, Michael Strasser, Ken Ikehara, Jez Everest, Lena Maeda, Katharina Hochmuth, Li Xu, Ann McNichol, Piero Bellanova, Troy Rasbury, Martin Kölling, Natascha Riedinger, Joel Johnson, Min Luo, Christian März, Susanne Straub, Kana Jitsuno, Morgane Brunet, Zhirong Cai, Antonio Cattaneo, Kanhsi Hsiung, Takashi Ishizawa, Takuya Itaki, Toshiya Kanamatsu, Myra Keep, Arata Kioka, Cecilia McHugh, Aaron Micallef, Dhananjai Pandey, Jean Noël Proust, Yasufumi Satoguchi, Derek Sawyer, Chloé Seibert, Maxwell Silver, Joonas Virtasalo, Yonghong Wang, Ting-Wei Wu, Sarah Zellers
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-9 (2023)
Abstract Hadal trenches are unique geological and ecological systems located along subduction zones. Earthquake-triggered turbidites act as efficient transport pathways of organic carbon (OC), yet remineralization and transformation of OC in these sy
Externí odkaz:
https://doaj.org/article/8b05a9db76224564bf500a6da24344c0
Autor:
Daisuke Hirano, Takeshi Tamura, Kazuya Kusahara, Masakazu Fujii, Kaihe Yamazaki, Yoshihiro Nakayama, Kazuya Ono, Takuya Itaki, Yuichi Aoyama, Daisuke Simizu, Kohei Mizobata, Kay I. Ohshima, Yoshifumi Nogi, Stephen R. Rintoul, Esmee van Wijk, Jamin S. Greenbaum, Donald D. Blankenship, Koji Saito, Shigeru Aoki
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-15 (2023)
Abstract The Totten Glacier in East Antarctica, with an ice volume equivalent to >3.5 m of global sea-level rise, is grounded below sea level and, therefore, vulnerable to ocean forcing. Here, we use bathymetric and oceanographic observations from pr
Externí odkaz:
https://doaj.org/article/c79ba67253354d47a0ff9cc2ae3fa015
Autor:
Mutsumi Iizuka, Osamu Seki, David J. Wilson, Yusuke Suganuma, Keiji Horikawa, Tina van de Flierdt, Minoru Ikehara, Takuya Itaki, Tomohisa Irino, Masanobu Yamamoto, Motohiro Hirabayashi, Hiroyuki Matsuzaki, Saiko Sugisaki
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-10 (2023)
Abstract The Last Interglacial (LIG: 130,000–115,000 years ago) was a period of warmer global mean temperatures and higher and more variable sea levels than the Holocene (11,700–0 years ago). Therefore, a better understanding of Antarctic ice-she
Externí odkaz:
https://doaj.org/article/b648fa9dec074ea7b3f62d4bf0631844
Autor:
Andros Daniel Cruz Salmeron, Hideko Takayanagi, Shigeyuki Wakaki, Tsuyoshi Ishikawa, Toshihiro Miyajima, Hitomi Wakaki, Takuya Itaki, Yasufumi Iryu
Publikováno v:
Progress in Earth and Planetary Science, Vol 9, Iss 1, Pp 1-20 (2022)
Abstract We investigated the water-mass structure on the Okinawa Trough and Pacific sides of the southern Ryukyu Island Arc (Yonaguni, Iriomote, and Ishigaki subareas) using the Nd isotope composition (143Nd/144Nd ratios; expressed as εNd values) of
Externí odkaz:
https://doaj.org/article/01b1c68b87dd4901a76a394e8b7dd2d2
Autor:
Takuya Itaki, Sakura Utsuki, Yuki Haneda, Kentaro Izumi, Yoshimi Kubota, Yusuke Suganuma, Makoto Okada
Publikováno v:
Progress in Earth and Planetary Science, Vol 9, Iss 1, Pp 1-14 (2022)
Abstract Marine isotope stage (MIS) 19 is considered to be the best orbital analog for the present interglacial. Consequently, clarifying the climatic features of this period can provide us with insights regarding a natural baseline for assessing fut
Externí odkaz:
https://doaj.org/article/b236c61aa9614f759f7164d881fad5ea
Autor:
Yoshimi Kubota, Yuki Haneda, Koji Kameo, Takuya Itaki, Hiroki Hayashi, Kizuku Shikoku, Kentaro Izumi, Martin J. Head, Yusuke Suganuma, Makoto Okada
Publikováno v:
Progress in Earth and Planetary Science, Vol 8, Iss 1, Pp 1-24 (2021)
Abstract The fluctuating position of the boundary between the Kuroshio (warm) and Oyashio (cold) currents in the mid-latitude western North Pacific affects both heat transport and air–ocean interactions and has significant consequences for the East
Externí odkaz:
https://doaj.org/article/725a180d43534106bd619c454e2dc5b1
Publikováno v:
Antarctic Record, Vol 64, Pp 330-350 (2020)
The Antarctic Ice Sheet is a major source of future sea-level rise due to global warming. Reconstruction of the past Antarctic Ice Sheet is essential to understand the mechanism of the Antarctic Ice Sheet response to global and regional climate chang
Externí odkaz:
https://doaj.org/article/48d1e9931db9476090e33acbacbd22ac
Automated collection of single species of microfossils using a deep learning–micromanipulator system
Autor:
Takuya Itaki, Yosuke Taira, Naoki Kuwamori, Toshinori Maebayashi, Satoshi Takeshima, Kenji Toya
Publikováno v:
Progress in Earth and Planetary Science, Vol 7, Iss 1, Pp 1-7 (2020)
Abstract For geochemical analysis such as stable isotope ratio, radiocarbon dating and minor element analysis for a single species of microfossils, a large number of specimens, is required. Collecting specimens one by one under a microscope requires
Externí odkaz:
https://doaj.org/article/41e04b8e71c2480c8627f81d5d16a8f9
Publikováno v:
Progress in Earth and Planetary Science, Vol 6, Iss 1, Pp 1-21 (2019)
Abstract The East China Sea (ECS) is a shallow marginal sea that is sensitive to glacio-eustatic sea-level changes and is influenced by warm oligotrophic water of the Kuroshio Current (KC), the nutrient-rich Taiwan Warm Current, and freshwater discha
Externí odkaz:
https://doaj.org/article/cd9caf4f2d1a4998a8a2834a5d01061a