6. Interdisciplinary research

Biomass burning history in East Asia during the last 4 million years recorded in elemental carbon variability at IODP site U1423

The burning of trees and grasses produces charred particles, such as charcoal and soot, that can be transported over long distances via winds and rivers to coastal, deltaic, and ocean environments, where they ...

Authors: Song Lu, Tomohisa Irino and Yaeko Igarashi

Measuring offshore tsunami currents using ship navigation records

We investigated ship navigation records known as Automatic Identification System (AIS) data near the source region of the 2011 Tohoku, Japan, tsunami. The AIS data of 16 ships in the offshore navigation could ...

Authors: Daisuke Inazu, Tsuyoshi Ikeya, Takuji Waseda, Toshiyuki Hibiya and Yoshinori Shigihara

Construction of perfectly continuous records of physical properties for dark-light sediment sequences collected from the Japan Sea during Integrated Ocean Drilling Program Expedition 346 and their potential utilities as paleoceanographic studies

Establishment of sedimentary sequence is essential for the interpretation of the sedimentary records. Integrated Ocean Drilling Program (IODP) Expedition (Exp.) 346 drilled high-quality sediment archives with ...

Authors: Tomohisa Irino, Ryuji Tada, Ken Ikehara, Takuya Sagawa, Akinori Karasuda, Shunsuke Kurokawa, Arisa Seki and Song Lu

High-resolution and high-precision correlation of dark and light layers in the Quaternary hemipelagic sediments of the Japan Sea recovered during IODP Expedition 346

The Quaternary hemipelagic sediments of the Japan Sea are characterized by centimeter- to decimeter-scale alternation of dark and light clay to silty clay, which are bio-siliceous and/or bio-calcareous to a va...

Authors: Ryuji Tada, Tomohisa Irino, Ken Ikehara, Akinori Karasuda, Saiko Sugisaki, Chuang Xuan, Takuya Sagawa, Takuya Itaki, Yoshimi Kubota, Song Lu, Arisa Seki, Richard W. Murray, Carlos Alvarez-Zarikian, William T. Anderson Jr, Maria-Angela Bassetti, Bobbi J. Brace…

Integrated tephrostratigraphy and stable isotope stratigraphy in the Japan Sea and East China Sea using IODP Sites U1426, U1427, and U1429, Expedition 346 Asian Monsoon

Integrated Ocean Drilling Program Expedition 346 “Asian Monsoon” obtained sediment successions at seven sites in the Japan Sea (Sites U1422–U1427 and U1430) and at two closely located sites in the northern Eas...

Authors: Takuya Sagawa, Yoshitaka Nagahashi, Yasufumi Satoguchi, Ann Holbourn, Takuya Itaki, Stephen J. Gallagher, Mariem Saavedra-Pellitero, Ken Ikehara, Tomohisa Irino and Ryuji Tada

Refinement of Miocene sea level and monsoon events from the sedimentary archive of the Maldives (Indian Ocean)

International Ocean Discovery Program (IODP) Expedition 359 cored sediments from eight borehole locations in the carbonate platform of the Maldives in the Indian Ocean. The expedition set out to unravel the ti...

Authors: C. Betzler, G. P. Eberli, T. Lüdmann, J. Reolid, D. Kroon, J. J. G. Reijmer, P. K. Swart, J. Wright, J. R. Young, C. Alvarez-Zarikian, M. Alonso-García, O. M. Bialik, C. L. Blättler, J. A. Guo, S. Haffen, S. Horozal…

Northern Eurasia Future Initiative (NEFI): facing the challenges and pathways of global change in the twenty-first century

During the past several decades, the Earth system has changed significantly, especially across Northern Eurasia. Changes in the socio-economic conditions of the larger countries in the region have also resulte...

Authors: Pavel Groisman, Herman Shugart, David Kicklighter, Geoffrey Henebry, Nadezhda Tchebakova, Shamil Maksyutov, Erwan Monier, Garik Gutman, Sergey Gulev, Jiaguo Qi, Alexander Prishchepov, Elena Kukavskaya, Boris Porfiriev, Alexander Shiklomanov, Tatiana Loboda, Nikolay Shiklomanov…

Cenozoic sedimentary records of climate-tectonic coupling in the Western Himalaya

Sedimentary archives in the Himalayan foreland basin and Indus submarine fan provide the most detailed records of how changing monsoon strength may have affected erosion and the development of tectonic structu...

Authors: Peter D. Clift

ESR signal intensity of quartz in the fine-silt fraction of riverbed sediments from the Yangtze River: a provenance tracer for suspended particulate matter

The Asian summer monsoon exerts a strong influence on the hydrologic cycle in East Asia. Moreover, the distribution of heavy precipitation in the Yangtze River basin, which covers a large area of South China, ...

Authors: Keita Saito, Ryuji Tada, Hongbo Zheng, Tomohisa Irino, Chao Luo, Mengying He, Ke Wang and Yoshiaki Suzuki

Preface for the article collection “Land–Ocean Linkages under the Influence of the Asian Monsoon”

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Authors: Ryuji Tada and Richard W. Murray

Transitional changes in microfossil assemblages in the Japan Sea from the Late Pliocene to Early Pleistocene related to global climatic and local tectonic events

Many micropaleontological studies based on data from on-land sections, oil wells, and deep-sea drilling cores have provided important information about environmental changes in the Japan Sea that are related t...

Authors: Takuya Itaki

Mass accumulation rate of detrital materials in Lake Suigetsu as a potential proxy for heavy precipitation: a comparison of the observational precipitation and sedimentary record

In the densely populated region of East Asia, it is important to know the mechanism, scale, and frequency of heavy precipitation brought about during the monsoons and typhoons. However, observational data, whi...

Authors: Yoshiaki Suzuki, Ryuji Tada, Kazuyoshi Yamada, Tomohisa Irino, Kana Nagashima, Takeshi Nakagawa and Takayuki Omori

Evolution and variability of the Asian monsoon and its potential linkage with uplift of the Himalaya and Tibetan Plateau

Uplift of the Himalaya and Tibetan Plateau (HTP) and its linkage with the evolution of the Asian monsoon has been regarded as a typical example of a tectonic–climate linkage. Although this linkage remains unpr...

Authors: Ryuji Tada, Hongbo Zheng and Peter D. Clift

Geochemical approaches to the quantification of dispersed volcanic ash in marine sediment

Volcanic ash has long been recognized in marine sediment, and given the prevalence of oceanic and continental arc volcanism around the globe in regard to widespread transport of ash, its presence is nearly ubi...

Authors: Rachel P. Scudder, Richard W. Murray, Julie C. Schindlbeck, Steffen Kutterolf, Folkmar Hauff, Michael B. Underwood, Samantha Gwizd, Rebecca Lauzon and Claire C. McKinley

Sea surface temperature proxies (alkenones, foraminiferal Mg/Ca, and planktonic foraminiferal assemblage) and their implications in the Okinawa Trough

We reviewed three sea surface temperature (SST) proxies in the Okinawa Trough (OT): alkenones, planktonic foraminiferal Mg/Ca, and planktonic foraminiferal assemblages. The seasonal and vertical distribution p...

Authors: Ryoung Ah Kim, Kyung Eun Lee and Si Woong Bae

Marine tephra in the Japan Sea sediments as a tool for paleoceanography and paleoclimatology

Tephra is a product of large and explosive volcanic events and can travel thousands of kilometers before deposition. Consequently, tephra deposits are common in terrestrial, lacustrine, marine, and glacial env...

Authors: Ken Ikehara

Heavy metal pollution in Ancient Nara, Japan, during the eighth century

We quantitatively investigated the eighth century heavy metal pollution in Heijo-kyo (Ancient Nara), the first large, international city of Japan. In this metropolis, mercury, copper, and lead levels in soil w...

Authors: Hodaka Kawahata, Shusuke Yamashita, Kyoko Yamaoka, Takashi Okai, Gen Shimoda and Noboru Imai

Erratum to: Invitation to Progress in Earth and Planetary Science

Authors: Yasufumi Iryu