Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Ryo Shingubara"'
Publikováno v:
Earth, Planets and Space, Vol 73, Iss 1, Pp 1-17 (2021)
Abstract Direct sampling and analysis of fumarolic gas was conducted at Ebinokogen Ioyama volcano, Japan, between December 2015 and July 2020. Notable changes in the chemical composition of gases related to volcanic activity included a sharp increase
Externí odkaz:
https://doaj.org/article/a64f104f948f447289097ab824aacd71
Autor:
Urumu Tsunogai, Ryo Shingubara, Yuhei Morishita, Masanori Ito, Fumiko Nakagawa, Shin Yoshikawa, Mitsuru Utsugi, Akihiko Yokoo
Publikováno v:
Frontiers in Earth Science, Vol 10 (2022)
Both chemical and isotopic compositions of concentrated volcanic plumes are highly useful in evaluating the present status of active volcanoes. Monitoring their temporal changes is useful for forecasting volcanic eruptions as well. Recently, we devel
Externí odkaz:
https://doaj.org/article/5706ca6eb099460f8f5f38f0ad242417
Autor:
Shinya Takano, Youhei Yamashita, Shunsuke Tei, Maochang Liang, Ryo Shingubara, Tomoki Morozumi, Trofim C. Maximov, Atsuko Sugimoto
Publikováno v:
Frontiers in Earth Science, Vol 9 (2021)
Arctic tundra wetlands may be an important source of dissolved organic carbon (DOC) in Arctic rivers and the Arctic Ocean under global warming. We investigated stable water isotopes and DOC concentration in wetlands, tributaries, and the mainstream a
Externí odkaz:
https://doaj.org/article/f9dcff8852ac438f8203d533159e0147
Autor:
Takeshi Ohba, Muga Yaguchi, Kana Nishino, Nozomi Numanami, Urumu Tsunogai, Masanori Ito, Ryo Shingubara
Publikováno v:
Frontiers in Earth Science, Vol 7 (2019)
Minor seismicity may occur at volcanoes with hydrothermal system before a steam eruption. To forecast any steam eruption, it is indispensable to detect and understand the nature of this shallow seismicity. As the fumarolic gas resides in the hydrothe
Externí odkaz:
https://doaj.org/article/f1725c48dc2c4f15983d127a3c76f8e9
Autor:
Shinya Takano, Atsuko Sugimoto, Shunsuke Tei, Maochang Liang, Ryo Shingubara, Tomoki Morozumi, Trofim C Maximov
Publikováno v:
PLoS ONE, Vol 14, Iss 10, p e0223720 (2019)
The warming trend in the Arctic region is expected to cause drastic changes including permafrost degradation and vegetation shifts. We investigated the spatial distribution of ice content and stable isotopic compositions of water in near-surface perm
Externí odkaz:
https://doaj.org/article/e2d95528aec742f78a74c218175fbe11
Autor:
Hui Lan, Urumu Tsunogai, Fumiko Nakagawa, Masanori Ito, Ryo Shingubara, Yuko Miyoshi, Shuichi Hara
Publikováno v:
GEOCHEMICAL JOURNAL. 57:59-72
Autor:
Kei Tanekura, Egor Starostin, Tomoki Morozumi, Shunsuke Tei, Ryo Shingubara, Rong Fan, Aleksandr Nogovitcyn, Atsuko Sugimoto, Trofim C. Maximov
Publikováno v:
Wetlands. 40:2413-2424
With the global warming, the frequent and severe river floods in Arctic regions have affected the distribution of willows in river lowlands. To investigate the effect of floods, especially waterlogging, on nitrogen conditions for willows, we measured
Autor:
Ryo Shingubara, Maochang Liang, Atsuko Sugimoto, Tomoki Morozumi, Jun Murase, Shinya Takano, T. C. Maximov
Publikováno v:
Soil Science and Plant Nutrition. 66:645-652
Arctic wetlands are significant sources of atmospheric methane and the observed accelerated climate changes in the arctic could cause a change in methane dynamics. Methane oxidation would be the ke...
Autor:
Alexander Fedorov, Tuyara Gavrilyeva, Ryo Shingubara, Shinya Takano, Tomoki Morozumi, Rong Fan, Nikita Tananaev, Shunsuke Tei, Shin Nagai, Atsuko Sugimoto, Trofim C. Maximov
Publikováno v:
Hydrological Processes. 34:522-537
Flooding is one of the greatest disasters that produces strong effects on the ecosystem and livelihoods of the local population. Flood frequency is expected to increase globally making its risk assessment an urgent issue. In spring‐summer 2017, an
Autor:
Trofim C. Maximov, Shin Nagai, Shunsuke Tei, Hideki Kobayashi, Atsuko Sugimoto, Rong Fan, Jun Murase, Ryo Shingubara, Tomoki Morozumi, Shinya Takano
Publikováno v:
Polar Science. 21:186-194
An extreme flooding event occurred from June to July 2017 in the Indigirka River lowland of northeastern Siberia. We used Landsat 8 satellite surface reflectance data to detect the flood inundation area and extract water color for delineating differe