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  1. Research article

    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...

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

    Progress in Earth and Planetary Science 2018 5:18

    Published on: 22 March 2018

  2. Research article

    Nitrogen dynamics in a highly urbanized coastal area of western Japan: impact of sewage-derived loads

    In this study, we examined the nitrogen dynamics of a highly urbanized coastal area, focusing on the impacts of sewage-derived nitrogen. High levels of dissolved inorganic nitrogen were detected in seawater ne...

    Mitsuyo Saito, Shin-ichi Onodera, Guangzhe Jin, Yuta Shimizu and Masanobu Taniguchi

    Progress in Earth and Planetary Science 2018 5:17

    Published on: 20 March 2018

  3. Research article

    Daily and seasonal variations in the linear growth rate of the Rayleigh-Taylor instability in the ionosphere obtained with GAIA

    The linear growth rates of the Rayleigh-Taylor (R-T) instability in the ionosphere from 2011 to 2013 were obtained with a whole atmosphere-ionosphere coupled model GAIA (ground-to-topside model of atmosphere a...

    Hiroyuki Shinagawa, Hidekatsu Jin, Yasunobu Miyoshi, Hitoshi Fujiwara, Tatsuhiro Yokoyama and Yuichi Otsuka

    Progress in Earth and Planetary Science 2018 5:16

    Published on: 9 March 2018

  4. Research article

    Multi-instrumented observations of the equatorial F-region during June solstice: large-scale wave structures and spread-F

    Typical equatorial spread-F events are often said to occur during post-sunset, equinox conditions in most longitude sectors. Recent studies, however, have found an unexpected high occurrence of ionospheric F-regi...

    Fabiano S. Rodrigues, Dustin A. Hickey, Weijia Zhan, Carlos R. Martinis, Bela G. Fejer, Marco A. Milla and Juan F. Arratia

    Progress in Earth and Planetary Science 2018 5:14

    Published on: 1 March 2018

  5. Research article

    Landslides triggered by an earthquake and heavy rainfalls at Aso volcano, Japan, detected by UAS and SfM-MVS photogrammetry

    Unmanned aerial systems (UASs) and structure-from-motion multi-view stereo (SfM-MVS) photogrammetry have attracted a tremendous amount of interest for use in the creation of high-definition topographic data fo...

    Hitoshi Saito, Shoichiro Uchiyama, Yuichi S. Hayakawa and Hiroyuki Obanawa

    Progress in Earth and Planetary Science 2018 5:15

    Published on: 1 March 2018

  6. Research article

    The seasonal variations of atmospheric 134,137Cs activity and possible host particles for their resuspension in the contaminated areas of Tsushima and Yamakiya, Fukushima, Japan

    A large quantity of radionuclides was released by the Fukushima Daiichi Nuclear Power Plant accident in March 2011, and those deposited on ground and vegetation could return to the atmosphere through resuspens...

    Takeshi Kinase, Kazuyuki Kita, Yasuhito Igarashi, Kouji Adachi, Kazuhiko Ninomiya, Atsushi Shinohara, Hiroshi Okochi, Hiroko Ogata, Masahide Ishizuka, Sakae Toyoda, Keita Yamada, Naohiro Yoshida, Yuji Zaizen, Masao Mikami, Hiroyuki Demizu and Yuichi Onda

    Progress in Earth and Planetary Science 2018 5:12

    Published on: 21 February 2018

  7. Research article

    Daytime F-region irregularity triggered by rocket-induced ionospheric hole over low latitude

    Unexpected daytime F-region irregularities following the appearance of an ionospheric hole have been observed over low latitude. The irregularities developed initially above the F-region peak height (~ 360 km)...

    Guozhu Li, Baiqi Ning, M. A. Abdu, Chi Wang, Yuichi Otsuka, Weixing Wan, Jiuhou Lei, Michi Nishioka, Takuya Tsugawa, Lianhuan Hu, Guotao Yang and Chunxiao Yan

    Progress in Earth and Planetary Science 2018 5:11

    Published on: 20 February 2018

  8. Research article

    Unseasonal development of post-sunset F-region irregularities over Southeast Asia on 28 July 2014: 1. Forcing from above?

    This contribution is the first of a two-part investigation into an unseasonal post-sunset equatorial F-region irregularity (EFI) event over the Southeast Asian region on the evening of 28 July 2014. Ground-bas...

    Brett A. Carter, S. Tulasi Ram, Endawoke Yizengaw, Rezy Pradipta, John Retterer, Robert Norman, Julie Currie, Keith Groves, Ronald Caton, Michael Terkildsen, Tatsuhiro Yokoyama and Kefei Zhang

    Progress in Earth and Planetary Science 2018 5:10

    Published on: 13 February 2018

  9. Research article

    Cold surge event observed by radiosonde observation from the research vessel “Hakuho-maru” over the Philippine Sea in December 2012

    The thermal energy transfer from the sea surface to the atmosphere associated with a cold surge event was investigated with observations from radiosondes on the research vessel “Hakuho-maru” over the Philippin...

    Shin-Ya Ogino, Peiming Wu, Miki Hattori, Nobuhiko Endo, Hisayuki Kubota, Tomoshige Inoue and Jun Matsumoto

    Progress in Earth and Planetary Science 2018 5:9

    Published on: 6 February 2018

  10. Research article

    Deep magnetic field stretching in numerical dynamos

    The process of magnetic field stretching transfers kinetic energy to magnetic energy and thereby maintains dynamos against ohmic dissipation. Stretching at depth may play an important role in shaping the field...

    Diego Peña, Hagay Amit and Katia J. Pinheiro

    Progress in Earth and Planetary Science 2018 5:8

    Published on: 5 February 2018

  11. Research article

    Mass transfer in the Earth’s interior: fluid-melt interaction in aluminosilicate–C–O–H–N systems at high pressure and temperature under oxidizing conditions

    Understanding what governs the speciation in the C–O–H–N system aids our knowledge of how volatiles affect mass transfer processes in the Earth’s interior. Experiments with aluminosilicate melt + C–O–H–N volat...

    Bjorn Mysen

    Progress in Earth and Planetary Science 2018 5:6

    Published on: 24 January 2018

  12. Research article

    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...

    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…

    Progress in Earth and Planetary Science 2018 5:5

    Published on: 22 January 2018

  13. Research article

    Land-sea surface air temperature contrast on the western coast of Sumatra Island during an active phase of the Madden-Julian Oscillation

    The land-sea surface temperature contrast on the western coast of Sumatra Island was examined using observation data obtained from the pre-Years of the Maritime Continent (YMC) field campaign from November to ...

    Peiming Wu, Shuichi Mori and Fadli Syamsudin

    Progress in Earth and Planetary Science 2018 5:4

    Published on: 10 January 2018

  14. Research article

    Decomposition of the large-scale atmospheric state driving downscaling: a perspective on dynamical downscaling for regional climate study

    In this study, we provide a perspective on dynamical downscaling that includes a comprehensive view of multiple downscaling methods and a strategy for achieving better assessment of future regional climates. A...

    Seiya Nishizawa, Sachiho A. Adachi, Yoshiyuki Kajikawa, Tsuyoshi Yamaura, Kazuto Ando, Ryuji Yoshida, Hisashi Yashiro and Hirofumi Tomita

    Progress in Earth and Planetary Science 2018 5:2

    Published on: 8 January 2018

  15. Research article

    Global terrain classification using 280 m DEMs: segmentation, clustering, and reclassification

    Polygon-based terrain classification data were created globally using 280 m digital elevation models (DEMs) interpolated from the multi-error-removed improved-terrain DEM (MERIT DEM). First, area segmentation ...

    Junko Iwahashi, Izumi Kamiya, Masashi Matsuoka and Dai Yamazaki

    Progress in Earth and Planetary Science 2018 5:1

    Published on: 5 January 2018

    The Correction to this article has been published in Progress in Earth and Planetary Science 2018 5:13

  16. Research article

    Paleo-tsunami history along the northern Japan Trench: evidence from Noda Village, northern Sanriku coast, Japan

    Throughout history, large tsunamis have frequently affected the Sanriku area of the Pacific coast of the Tohoku region, Japan, which faces the Japan Trench. Although a few studies have examined paleo-tsunami d...

    Taiga Inoue, Kazuhisa Goto, Yuichi Nishimura, Masashi Watanabe, Yasutaka Iijima and Daisuke Sugawara

    Progress in Earth and Planetary Science 2017 4:42

    Published on: 28 December 2017

  17. Review

    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...

    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…

    Progress in Earth and Planetary Science 2017 4:41

    Published on: 27 December 2017

  18. Research article

    Global evaluation of erosion rates in relation to tectonics

    Understanding the mechanisms and controlling factors of erosion rates is essential in order to sufficiently comprehend bigger processes such as landscape evolution. For decades, scientists have been researchin...

    Hagar Hecht and Takashi Oguchi

    Progress in Earth and Planetary Science 2017 4:40

    Published on: 19 December 2017

  19. Research article

    Spatial pattern in stress drops of moderate-sized earthquakes on the Pacific Plate off the south-east of Hokkaido, Japan: implications for the heterogeneity of frictional properties

    We show that the spatial heterogeneity in the coseismic displacement of large earthquakes likely reflects the spatial characteristics of the frictional properties and that it can be inferred from the stress dr...

    Takuji Yamada, Yu Saito, Yuichiro Tanioka and Jun Kawahara

    Progress in Earth and Planetary Science 2017 4:38

    Published on: 13 December 2017

  20. Research article

    Regional moisture budget associated with drought/flood events over China

    In this study, long-term (1961–2011) variations in the moisture budget and drought/flood events in six subregions of China are analyzed. Water vapor is mainly transported zonally during winter, while meridiona...

    Shuang Qiu, Wen Zhou, Marco Yu-Ting Leung and Xiuzhen Li

    Progress in Earth and Planetary Science 2017 4:36

    Published on: 7 December 2017

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