research articles

Precision and convergence speed of the ensemble Kalman filter-based parameter estimation: setting parameter uncertainty for reliable and efficient estimation

Kenta Sueki, Seiya Nishizawa, Tsuyoshi Yamaura, Hirofumi Tomita

Characterization of water masses around the southern Ryukyu Islands based on isotopic compositions

Andros Daniel Cruz Salmeron, Takayanagi H, Wakaki S, Ishikawa T, Miyajima T, Wakaki H, Itaki T, Iryu Y

Experiments on seepage-triggered cliff landslides using cohesive wet sand

Fumi Shibuya, Ikuro Sumita

Assessing and projecting surface air temperature conditions required to sustain permafrost in Japan

T. Yokohata, G. Iwahana, K. Saito, N. N. Ishizaki, T. Matsushita, T. Sueyoshi

Hadean/Eoarchean tectonics and mantle mixing induced by impacts: a three-dimensional study

Xavier Borgeat, Paul J. Tackley

Short-wave run-ups of the 1611 Keicho tsunami along the Sanriku Coast

Yusuke Yamanaka, Yuichiro Tanioka

Climatic zonation of Egypt based on high-resolution dataset using image clustering technique

Mohammed Magdy Hamed, Mohamed Salem Nashwan, Shamsuddin Shahid

Depth profile of frictional properties in the inner Nankai accretionary prism using cuttings from IODP Site C0002

Riho Fujioka, Ikuo Katayama, Manami Kitamura, Hanaya Okuda, Takehiro Hirose

Seismicity distribution in the Tonankai and Nankai seismogenic zones and its spatiotemporal relationship with interplate coupling and slow earthquakes

Yojiro Yamamoto, Shuichiro Yada, Keisuke Ariyoshi, Takane Hori, Narumi Takahashi

Identifying tsunami traces beyond sandy tsunami deposits using terrigenous biomarkers: a case study of the 2011 Tohoku-oki tsunami in a coastal pine forest, northern Japan

Tetsuya Shinozaki, Yuki Sawai, Minoru Ikehara, Dan Matsumoto, Yumi Shimada, Koichiro Tanigawa, Toru Tamura