ニュース

A new research article ： Published 15 February 2026
Trans-Pacific Saharan dust recorded in Mount Logan ice core
Kana Nagashima, Kumiko Goto-Azuma, Akinori Ito, Motohiro Hirabayashi, Takayuki Shiraiwa, Sumito Matoba, Takahiro Segawa, Syosaku Kanamori & Naoko Nagatsuka
This article has been published as a part of the SPEPS collection
”Biogeochemical Studies on Atmosphere, Ocean, and their Interaction in the western North Pacific region”

A new research article ： Published 14 February 2026
Ocean acidification and changes in biological production in the western subarctic region of the North Pacific over the quarter century, 1999–2023
Masahide Wakita, Akira Nagano, Hiroshi Uchida, Yoshiyuki Nakano, Katsunori Kimoto, Masahito Shigemitsu, Kana Nagashima, Fumikazu Taketani, Tetsuichi Fujiki, Maki Noguchi-Aita, Kosei Sasaoka, Tsuneo Ono & Toshihiko Takemura
This article has been published as a part of the SPEPS collection
”Biogeochemical Studies on Atmosphere, Ocean, and their Interaction in the western North Pacific region”

A new research article ： Published 06 February 2026
Source estimation of the 1703 Genroku tsunami through geological surveys and numerical simulations on Hachijo Island
Hiroko Kaida, Takashi Ishizawa, Hideaki Yanagisawa, Haruki Imura, Kaoru Hayashi, Kazuhisa Goto

A new research article ： Published 29 January 2026
Carbon isotopic changes of 16 proteinogenic amino acids during trophic transfer in a cultured marine consumer
Yuchen Sun, Naoto F. Ishikawa, Nanako O. Ogawa, Yoshinori Takano & Naohiko Ohkouchi

This article has been published as a part of the SPEPS collection
“Earth, Isotopes and Organics”

A new research article ： Published 27 January 2026
Loros: laboratory simulations of the Optical RadiOmeter Composed of CHromatic Imagers (OROCHI) experiment of the Martian Moons eXploration (MMX) mission
R. Roger Stabbins & S. Shingo Kameda
This article has been published as a part of the SPEPS collection
“Progress on science and instruments for Martian Moons eXploration (MMX) mission”

A new research article ： Published 23 January 2026
Paleo-permeability in oceanic lithosphere inferred from vein mapping along the Wadi Haymiliyah of the Oman Ophiolite
Genya Sakamoto, Yuya Akamatsu, Kazumasa Tanimoto, Keishi Okazaki & Ikuo Katayama

A new research article ： Published 21 January 2026
Grain boundary sliding as a formation mechanism for the crystal preferred orientation of antigorite: the formation and development of B-type antigorite CPO patterns
Takayoshi Nagaya & Simon R. Wallis

A new research article ： Published 20 January 2026
Influence of minerals on aldose formation during hydrothermal processes in meteorite parent bodies
Taiyu Fujii, Shunpei Abe, Naoki Hirakawa, Kensei Kobayashi & Yoko Kebukawa

A new research article ： Published 19 January 2026
Changes in ambient ozone concentrations from urban to remote areas in Japan during the COVID-19 pandemic period in April and May, 2020
Syuichi Itahashi, Hikari Shimadera, Hitoshi Irie, Kyo Kitayama & Satoru Chatani

A new research article ： Published 12 January 2026
Assessment of the impacts of anthropogenic ozone precursors on domestic and transboundary ozone concentrations using a high-resolution global chemistry model
Daisuke Goto, Hisashi Yashiro, Yousuke Yamashita, Masayuki Takigawa, Kengo Sudo, Junya Uchida, Keiya Yumimoto & Toshihiko Takemura