Research articles

Deep learning-based detection for thermokarst topography using the chopped picture method

Kosuke Takaya, Noriko Kurata, Takeshi Ise, Yoshihiro Iijima

Progressive development of the Paleocene to early Miocene Shimanto accretionary complex in eastern Shikoku, Southwest Japan: response to magmatic arc evolution along the East Asian continental margin

Hidetoshi Hara, Satoshi Tonai, Hinako Matsumoto

Validating tropospheric NO₂ column density from GEMS version 3.0 and Tropospheric Chemistry Reanalysis version 2 from background to urban conditions over Japan: with a focus on diurnal variations

Phuc Thi Minh Ha, Yugo Kanaya, Takashi Sekiya, Hisahiro Takashima, Kengo Sudo, Yongjoo Choi, Limseok Chang, Hanlim Lee, Hyunkee Hong, Jhoon Kim

New screening method for well-preserved brachiopod shells and shell portions for paleoenvironmental analysis: Raman spectroscopy

Kazuma Oikawa, Hideko Takayanagi, Hiroshi Fujioka, Mamoru Takizawa, Miki Arakane, Yui Kouketsu, Thasinee Charoentitirat, Hidetoshi Hara, Koshi Yamamoto, Osamu Abe, Ryuji Asami, Komei Yamagishi, Hiroto Oda, Yasufumi Iryu

Comparisons of strontium isotope ratios in the water and otoliths suggest narrow habitat ranges of freshwater three-spined sticklebacks in Otsuchi, Japan

Konomi Uji, Takanori Nakano, Ki-Cheol Shin, Seiichi Mori, Manabu Kume, Shotaro Nishida, Ichiro Tayasu

Structural Evolution of the Eastern Nankai Trough accretionary prism, Central Japan—Subduction of Trough-Parallel Seamount Chains

Philomene Vanessa Eyang Ondo Ep Ella Ndong, Kohsaku Arai, Ayanori Misawa, Narumi Takahashi, Yuka Yokoyama, Asahiko Taira, Izumi Sakamoto

Discrepancies between feeding ecology and trophic position based on nitrogen isotopic composition in endosymbiont-bearing benthic foraminifers

Ayumi Maeda, Yuichi I. Naito, Masashi Tsuchiya, Yoshito Chikaraishi, Kazuhiko Fujita, Naohiko Ohkouchi, Hodaka Kawahata

Tracing terrestrial nitrogen contributions to the salt marsh food web of the Obitsu River estuary in Tokyo Bay using compound-specific δ¹⁵N analysis of amino acids

Satoshi Furota, Naoto F. Ishikawa, Nanako O. Ogawa, Toshio Furota, Naohiko Ohkouchi

Multi-technique SAR coseismic deformation retrieval and fault modeling of the 2025 Mw 7.7 Myanmar earthquake

Valerio Ruocco, Silvia Puliero, Simone Atzori, Cristiano Tolomei, Andrea Antonioli, Marco Polcari, Matteo Albano, Marco Moro, Salvatore Stramondo, Michele Saroli, Pasquale Striano, Fernando Monterroso, Manuela Bonano, Francesco Casu, Claudio De Luca,　Riccardo Lanari

UAV-based magnetic survey for detecting hydrothermal alteration zones relevant to landslides: A case study at Aso Volcano, Japan

Shigeo Okuma, Ayumu Miyakawa, Hikari Yonekura, Keiichi Sakaguchi, Hideo Hoshizumi, Tomoya Abe, Daisaku Kawabata, Yoshinori Miyachi, Nobuo Matsushima