research articles

Dissolved inorganic carbon entrainment into the mixed layer of the western subarctic North Pacific: a key process of ocean acidification under historical carbon dioxide emissions

Akira Nagano, Masahito Shigemitsu, Masahide Wakita

Initial sea surface displacement of non-seismic tsunami associated with the 2020 sand point earthquake off the Alaska Peninsula

Akino Naitoh, Koichiro Motoi, Toshitaka Baba

Identification of traditional flood control facilities concealed in the riparian forest: a case study of the Echi River, central Japan

Takuro Ogura, Kazuyuki Shimamoto, Toshiaki Mizuno, Daisuke Katayama, Hiroyuki Yamauchi, Tsuyoshi Hattanji

Carnivorous plants: unveiling trophic identity and advanced nitrogen acquisition strategies

Rong Fan, Yuko Takizawa, Prarthana S. Dharampal, Shawn A. Steffan and Yoshito Chikaraishi

Long-term and interannual variations of atmospheric methane observed by the NIES and collaborative observation networks

Taku Umezawa, Yasunori Tohjima, Yukio Terao, Motoki Sasakawa, Astrid Müller, Tazu Saeki, Toshinobu Machida, Shin-Ichiro Nakaoka, Hideki Nara, Shohei Nomura, Masahide Nishihashi, Hitoshi Mukai, Matthias Max Frey, Isamu Morino, Hirofumi Ohyama, Yukio Yoshida, Jiye Zeng, Hibiki Noda, Makoto Saito, Tsuneo Matsunaga, Takafumi Sugita, Hiroshi Tanimoto, Yosuke Niwa, Akihiko Ito, Yousuke Yamashita, Tomoko Shirai, Misa Ishizawa, Kentaro Ishijima, Kazuhiro Tsuboi, Yousuke Sawa, Hidekazu Matsueda

Microgravity penetrometry flight campaign in support of MMX sampler science exploitation

Alexander Smyth-Moore, Johan Borg, Álvaro Soria-Salinas, Naomi Murdoch, Hiroki Kato, Hideaki Miyamoto, Tomohiro Usui, Erika Kaufmann, Mikael Granvik and Axel Hagermann

Spatiotemporal variation of aftershock activity in northern source region of the 2011 Tohoku-oki earthquake by long-term ocean bottom seismometers

Masanao Shinohara, Ryota Hino, Kimihiro Mochizuki, Toshinori Sato, Kazuo Nakahigashi, Tomoaki Yamada, Yoshio Murai, Hiroshi Yakiwara, Yoshihiro Ito, Ryosuke Azuma and Toshihiko Kanazawa

Textural evolution of S-type micrometeorites

V. P. Singh and N. G. Rudraswami

Ground calibration tests of the laser altimeter (LIDAR) for MMX mission

Senshu H, Mizuno T, Nakura T, Suetsugu R, Kasai K, Ikeda H, Noda H, Matsumoto K, Araki H, Umetani K, Konishi A, Sasaki S, Ishihara Y, Ikuse Y, Mayuzumi K, Kase T

Cyclostratigraphy of the Miocene Nakayama Formation on Sado Island in central Japan and paleoceanographic implications

Jumpei Yoshioka, Junichiro Kuroda, Kenji M. Matsuzaki