研究者詳細 - 植村　立

論文 - 植村　立

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Multidecadal hydroclimate responses to volcanic forcing in the Mid-Holocene 査読有り国際共著

Syed Azharuddin, Kanako Omine, Kosuke Masaka, Ryuji Asami, Mahjoor Ahmad Lone, Yu-Chen Chou, Chuan-Chou Shen, Ryu Uemura

Communications Earth & Environment 6 巻頁： Article number: 101 2025年2月

Contrasting Responses of Ion Concentration Variations to Atmospheric Patterns in Central Himalayan Ice Cores 査読有り国際誌

Tsushima, A; Esashi, N; Matoba, S; Iizuka, Y; Uemura, R; Adachi, K; Kinase, T; Hirabayashi, M; Kawakami, K; Kayastha, RB; Fujita, K

JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 130 巻 ( 2 ) 2025年1月

A snapshot of the climate in the Middle Pleistocene inferred from a stalagmite from central Japan 査読有り国際共著国際誌

Sakai, M; Hori, M; Uemura, R; Ghaleb, B; Pinti, DL; Yumiba, M; Murayama, M; Kano, A

GEOSCIENCE LETTERS 11 巻 ( 1 ) 頁： 41 2024年9月

SE-Dome II ice core dating with half-year precision: Increasing melting events from 1799 to 2020 in southeastern Greenland 査読有り

Kaoru Kawakami, Yoshinori Iizuka, Mahiro Sasage, Mai Matsumoto, Takeshi Saito, Akira Hori, Sakiko Ishino, Shuji Fujita, Koji Fujita, Keita Takasugi, Takumi Hatakeyama, Saaya Hamamoto, Akihisa Watari, Nao Esashi, Miu Otsuka, Ryu Uemura, Kazuho Horiuchi, Masahiro Minowa, Shohei Hattori, Teruo Aoki, Motohiro Hirabayashi, Kenji Kawamura, Sumito Matoba

Journal of Geophysical Research: Atmospheres 128 巻頁： e2023JD038874 2023年10月

The noble gas and nitrogen relationship between Ryugu and carbonaceous chondrites 査読有り国際共著

David J. Byrne; Evelyn Füri; Laurent Zimmermann; Bernard Marty; Ryuji Okazaki; Toru Yada; Fumio Kitajima; Shogo Tachibana; Kasumi Yogata; Kanako Sakamoto; Hisayoshi Yurimoto; Tomoki Nakamura; Takaaki Noguchi; Hiroshi Naraoka; Hikaru Yabuta; Sei-ichiro Watanabe; Yuichi Tsuda; Masahiro Nishimura; Aiko Nakato; Akiko Miyazaki; Masanao Abe; Tatsuaki Okada; Tomohiro Usui; Makoto Yoshikawa; Takanao Saiki; Satoshi Tanaka; Fuyuto Terui; Satoru Nakazawa; Henner Busemann; Ko Hashizume; Jamie D. Gilmour; Alex Meshik; My E. I. Reibe; Daniela Krietsch; Colin Maden; Akizumi Ishida; Patricia L. Clay; Sarah A. Crowther; Lydia Fawcett; Thomas Lawton; Olga Pravdivtseva; Yayoi N. Miura; Jisun Park; Ken-ichi Bajo; Yoshinori Takano; Keita Yamada; Shinsuke Kawagucci; Yohei Matsui; Mizuki Yamamoto; Kevin Righter; Saburo Sakai; Naoyoshi Iwata; Naoki Shirai; Shun Sekimoto; Makoto Inagaki; Mitsuru Ebihara; Reika Yokochi; Kunihiko Nishiizumi; Keisuke Nagao; Jong Ik Lee; Akihiro Kano; Marc, W. Caffee; Ryu Uemura

Geochimica et Cosmochimica Acta 345 巻頁： 62 - 74 2023年3月

Noble gases and nitrogen in samples of asteroid Ryugu record its volatile sources and recent surface evolution 査読有り国際共著

Ryuji Okazaki, Bernard Marty, Henner Busemann, Ko Hashizume, Jamie D. Gilmour, Alex Meshik, Toru Yada, Fumio Kitajima, Michael W. Broadley, David Byrne, Evelyn Füri, My E. I. Riebe, Daniela Krietsch, Colin Maden, Akizumi Ishida, Patricia Clay, Sarah A. Crowther, Lydia Fawcett, Thomas Lawton, Olga Pravdivtseva, Yayoi N. Miura, Jisun Park, Ken-ichi Bajo, Yoshinori Takano, Keita Yamada, Shinsuke Kawagucci, Yohei Matsui, Mizuki Yamamoto, Kevin Righter, Saburo Sakai, Naoyoshi Iwata, Naoki Shirai, Shun Sekimoto, Makoto Inagaki, Mitsuru Ebihara, Reika Yokochi, Kunihiko Nishiizumi, Keisuke Nagao, Jong Ik Lee, Akihiro Kano, Marc W. Caffee, Ryu Uemura, Tomoki Nakamura, Hiroshi Naraoka, Takaaki Noguchi, Hikaru Yabuta, Hisayoshi Yurimoto, Shogo Tachibana, Hirotaka Sawada, Kanako Sakamoto, Masanao Abe, Masahiko Arakawa, Atsushi Fujii, Masahiko Hayakawa, Naoyuki Hirata, Naru Hirata, Rie Honda, Chikatoshi Honda, Satoshi Hosoda, Yu-ichi Iijima, Hitoshi Ikeda, Masateru Ishiguro, Yoshiaki Ishihara, Takahiro Iwata, Kosuke Kawahara, Shota Kikuchi, Kohei Kitazato, Koji Matsumoto, Moe Matsuoka, Tatsuhiro Michikami, Yuya Mimasu, Akira Miura, Tomokatsu Morota, Satoru Nakazawa, Noriyuki Namiki, Hirotomo Noda, Rina Noguchi, Naoko Ogawa, Kazunori Ogawa, Tatsuaki Okada, Chisato Okamoto, Go Ono, Masanobu Ozaki, Takanao Saiki, Naoya Sakatani, Hiroki Senshu, Yuri Shimaki, Kei Shirai, Seiji Sugita, Yuto Takei, Hiroshi Takeuchi, Satoshi Tanaka, Eri Tatsumi, Fuyuto Terui, Ryudo Tsukizaki, Koji Wada, Manabu Yamada, Tetsuya Yamada, Yukio Yamamoto, Hajime Yano, Yasuhiro Yokota, Keisuke Yoshihara, Makoto Yoshikawa, Kent Yoshikawa, Shizuho Furuya, Kentaro Hatakeda, Tasuku Hayashi, Yuya Hitomi, Kazuya Kumagai, Akiko Miyazaki, Aiko Nakato, Masahiro Nishimura, Hiromichi Soejima, Ayako Iwamae, Daiki Yamamoto, Kasumi Yogata, Miwa Yoshitake, Ryota Fukai, Tomohiro Usui, Harold C. Connolly, Dante Lauretta, Sei-ichiro Watanabe and Yuichi Tsuda

Science 379 巻 ( 6634 ) 頁： eabo0431 2023年2月

Development of Cavity Ring-down Spectrometer for Tritiated/Heavy Water Samples

Kazuki Iwamoto, Keisuke Saito, Yuta Suzuki, Ryu Uemura, Osamu Abe, Hisashi Abe, Norihiko Nishizawa, and Hideki Tomita

2022年12月

First asteroid gas sample delivered by the Hayabusa2 mission: A treasure box from Ryugu 査読有り国際共著

Ryuji Okazaki, Yayoi N. Miura, Yoshinori Takano, Hirotaka Sawada, Kanako Sakamoto, Toru Yada, Keita Yamada, Shinsuke Kawagucci, Yohei Matsui, Ko Hashizume, Akizumi Ishida, Michael W. Broadley, Bernard Marty, David Byrne, Evelyn Füri, Alex Meshik, Olga Pravdivtseva, Henner Busemann, My E.I. Riebe, Jamie Gilmour, Jisun Park, Ken-ichi Bajo, Kevin Righter, Saburo Sakai, Shun Sekimoto, Fumio Kitajima, Sarah A. Crowther, Naoyoshi Iwata, Naoki Shirai, Mitsuru Ebihara, Reika Yokochi, Kunihiko Nishiizumi, Keisuke Nagao, Jong Ik Lee, Patricia Clay, Akihiro Kano, Marc W. Caffee, Ryu Uemura, Makoto Inagaki, Daniela Krietsch, Colin Maden, Mizuki Yamamoto, Lydia Fawcett, Thomas Lawton, Tomoki Nakamura, Hiroshi Naraoka, Takaaki Noguchi, Hikaru Yabuta, Hisayoshi Yurimoto, Yuichi Tsuda, Sei-ichiro Watanabe, Masanao Abe, Masahiko Arakawa, Atsushi Fujii, Masahiko Hayakawa, Naoyuki Hirata, Naru Hirata, Rie Honda, Chikatoshi Honda, Satoshi Hosoda, Yu-ichi Iijima, Hitoshi Ikeda, Masateru Ishiguro, Yoshiaki Ishihara, Takahiro Iwata, Kosuke Kawahara, Shota Kikuchi, Kohei Kitazato, Koji Matsumoto, Moe Matsuoka, Tatsuhiro Michikami, Yuya Mimasu, Akira Miura, Tomokatsu Morota, Satoru Nakazawa, Noriyuki Namiki, Hirotomo Noda, Rina Noguchi, Naoko Ogawa, Kazunori Ogawa, Tatsuaki Okada, Chisato Okamoto, Go Ono, Masanobu Ozaki, Takanao Saiki, Naoya Sakatani, Hiroki Senshu, Yuri Shimaki, Kei Shirai, Seiji Sugita, Yuto Takei, Hiroshi Takeuchi, Satoshi Tanaka, Eri Tatsumi, Fuyuto Terui, Ryudo Tsukizaki, Koji Wada, Manabu Yamada, Tetsuya Yamada, Yukio Yamamoto, Hajime Yano, Yasuhiro Yokota, Keisuke Yoshihara, Makoto Yoshikawa, Kent Yoshikawa, Shizuho Furuya, Kentaro Hatakeda, Tasuku Hayashi, Yuya Hitomi, Kazuya Kumagai, Akiko Miyazaki, Aiko Nakato, Masahiro Nishimura, Hiromichi Soejima, Ayako Iwamae, Daiki Yamamoto, Kasumi Yogata, Miwa Yoshitake, Ryota Fukai, Tomohiro Usui, Trevor Ireland, Harold C. Connolly Jr., Dante S. Lauretta, and Shogo Tachibana

Science Advances 8 巻頁： eabo7239 2022年10月

High Flux of Small Sulfate Aerosols During the 1970s Reconstructed From the SE-Dome Ice Core in Greenland 査読有り

Y. Iizuka, R. Uemura, H. Matsui, N. Oshima, K. Kawakami, S. Hattori, H. Ohno, S. Matoba

Journal of Geophysical Research-Atmospheres 127 巻 ( 17 ) 頁： e2022JD036880 2022年8月

Soluble salts in deserts as a source of sulfate aerosols in an Antarctic ice core during the last glacial period 査読有り

Ryu Uemura, Kosuke Masaka, Yoshinori Iizuka, Motohiro Hirabayashi, Hitoshi Matsui, Risei Matsumoto, Miki Uemura, Koji Fujita, Hideaki Motoyama

Earth and Planetary Science Letters 578 巻頁： 117299 2022年1月

Interglacial Antarctic-Southern Ocean climate decoupling due to moisture source area shifts 査読有り国際共著国際誌

Landais A., Stenni B., Masson-Delmotte V, Jouzel J., Cauquoin A., Fourre E., Minster B., Selmo E., Extier T., Werner M., Vimeux F., Uemura R., Crotti I, Grisart A.

NATURE GEOSCIENCE 14 巻 ( 12 ) 頁： 918 2021年12月

Last glacial temperature reconstructions using coupled isotopic analyses of fossil snails and stalagmites from archaeological caves in Okinawa, Japan 査読有り国際共著国際誌

Asami Ryuji, Hondo Rikuto, Uemura Ryu, Fujita Masaki, Yamasaki Shinji, Shen Chuan-Chou, Wu Chung-Che, Jiang Xiuyang, Takayanagi Hideko, Shinjo Ryuichi, Kano Akihiro, Iryu Yasufumi

SCIENTIFIC REPORTS 11 巻 ( 1 ) 頁： 21922 2021年11月

Reconstruction of ocean environment time series since the late nineteenth century using sclerosponge geochemistry in the northwestern subtropical Pacific 査読有り国際誌

Asami Ryuji, Matsumori Taketo, Shinjo Ryuichi, Uemura Ryu, Miyaoka Yuki, Mizuyama Masaru, Ise Yuji, Sakamaki Takashi

PROGRESS IN EARTH AND PLANETARY SCIENCE 8 巻 ( 1 ) 2021年6月

Isotopic evidence for acidity-driven enhancement of sulfate formation after SO2 emission control. 査読有り国際共著国際誌

Hattori S, Iizuka Y, Alexander B, Ishino S, Fujita K, Zhai S, Sherwen T, Oshima N, Uemura R, Yamada A, Suzuki N, Matoba S, Tsuruta A, Savarino J, Yoshida N

Science advances 7 巻 ( 19 ) 2021年5月

Evaluation of geochemical records as a paleoenvironmental proxy in the hypercalcified demosponge Astrosclera willeyana 査読有り

Asami Ryuji, Kinjo Akira, Ohshiro Daiki, Naruse Tohru, Mizuyama Masaru, Uemura Ryu, Shinjo Ryuichi, Ise Yuji, Fujita Yoshihisa, Sakamaki Takashi

PROGRESS IN EARTH AND PLANETARY SCIENCE 7 巻 ( 1 ) 2020年5月

Experimental evaluation of oxygen isotopic exchange between inclusion water and host calcite in speleothems 査読有り

Uemura Ryu, Kina Yudai, Shen Chuan-Chou, Omine Kanako

CLIMATE OF THE PAST 16 巻 ( 1 ) 頁： 17 - 27 2020年1月

Reduced marine phytoplankton sulphur emissions in the Southern Ocean during the past seven glacials 査読有り

Goto-Azuma K., Hirabayashi M., Motoyama H., Miyake T., Kuramoto T., Uemura R., Igarashi M., Iizuka Y., Sakurai T., Horikawa S., Suzuki K., Suzuki T., Fujita K., Kondo Y., Hattori S., Fujii Y.

NATURE COMMUNICATIONS 10 巻頁： 3247 2019年7月

Dominant influence of the humidity in the moisture source region on the 17O-excess in precipitation on a subtropical island 査読有り

Yuina Uechi, Ryu Uemura

Earth and Planetary Science Letters 513 巻頁： 20-28 2019年2月

Marine Isotope Stage 4 in Australasia: A full glacial culminating 65,000 years ago – Global connections and implications for human dispersal 招待有り査読有り国際共著

Patrick De Deckker, Lee J Arnold, Sander van der Kaars, Germain Bayon, Jan-Berend W Stuut, Kerstin Perner, Raquel Lopes dos Santos, Ryu Uemura, Martina Demuro

Quaternary Science Reviews 204 巻頁： 187 - 207 2019年1月

Abrupt ice-age shifts in southern westerly winds and Antarctic climate forced from the north

Christo Buizert, Michael Sigl, Mirko Severi, Bradley R. Markle, Justin J, We, stein, Joseph, R. McConnell, Joel B. Pedro, Harald Sodemann, Kumiko Goto-Azuma, Kenji Kawamura, Shuji Fujita, Hideaki Motoyama, Motohiro Hirabayashi, Ryu Uemura, Barbara Stenni, Frédéric Parrenin, Feng He, T. J. Fudge, Eric J. Steig

Nature 563 巻 ( 7733 ) 頁： 681 - 685 2018年11月

記述言語：英語掲載種別：研究論文（学術雑誌）

© 2018, Springer Nature Limited. The mid-latitude westerly winds of the Southern Hemisphere play a central role in the global climate system via Southern Ocean upwelling 1 , carbon exchange with the deep ocean 2 , Agulhas leakage (transport of Indian Ocean waters into the Atlantic) 3 and possibly Antarctic ice-sheet stability 4 . Meridional shifts of the Southern Hemisphere westerly winds have been hypothesized to occur 5,6 in parallel with the well-documented shifts of the intertropical convergence zone 7 in response to Dansgaard–Oeschger (DO) events— abrupt North Atlantic climate change events of the last ice age. Shifting moisture pathways to West Antarctica 8 are consistent with this view but may represent a Pacific teleconnection pattern forced from the tropics 9 . The full response of the Southern Hemisphere atmospheric circulation to the DO cycle and its impact on Antarctic temperature remain unclear 10 . Here we use five ice cores synchronized via volcanic markers to show that the Antarctic temperature response to the DO cycle can be understood as the superposition of two modes: a spatially homogeneous oceanic ‘bipolar seesaw’ mode that lags behind Northern Hemisphere climate by about 200 years, and a spatially heterogeneous atmospheric mode that is synchronous with abrupt events in the Northern Hemisphere. Temperature anomalies of the atmospheric mode are similar to those associated with present-day Southern Annular Mode variability, rather than the Pacific–South American pattern. Moreover, deuterium-excess records suggest a zonally coherent migration of the Southern Hemisphere westerly winds over all ocean basins in phase with Northern Hemisphere climate. Our work provides a simple conceptual framework for understanding circum-Antarctic temperature variations forced by abrupt Northern Hemisphere climate change. We provide observational evidence of abrupt shifts in the Southern Hemisphere westerly winds, which have previously documented 1–3 ramifications for global ocean circulation and atmospheric carbon dioxide. These coupled changes highlight the necessity of a global, rather than a purely North Atlantic, perspective on the DO cycle.

DOI： 10.1038/s41586-018-0727-5

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