Thu. May 25, 2023 9:00 AM - 10:30 AM 106 (International Conference Hall, Makuhari Messe)

[J] Oral
| A (Atmospheric and Hydrospheric Sciences )
| A-HW Hydrology & Water Environment

[A-HW23] Isotope Hydrology 2023

9:55 AM - 10:10 AM

[AHW23-08] On sulfate ion concentration and its origin in shallow groundwater in Shinagawa, Central Tokyo, Japan

*Yuki Itoh¹, Masaya Yasuhara², Seongwon Lee², Kazuyoshi Asai³ (1.Rissho University graduate School of Geo-environmental Science, 2.Department of Environmental Systems, Faculty of Geo-Environmental Science, RISSHO University, 3.Geo Science Laboratory)

10:10 AM - 10:25 AM

[AHW23-09] Nitrate ion concentration and nitrogen isotope ratio of shallow groundwater in Kitakarasuyama, Setagaya, Tokyo

Hiroki Fukui¹, Yuki Itoh³, Seongwon Lee¹, *Masaya Yasuhara¹, Takashi Nakamura² (1.Rissho Univ., 2.Yamanashi Univ., 3.Graduate School of Rissho Univ.)

Thu. May 25, 2023 10:45 AM - 12:15 PM Online Poster Zoom Room (7) (Online Poster)

[J] Online Poster
| A (Atmospheric and Hydrospheric Sciences )
| A-HW Hydrology & Water Environment

[A-HW23] Isotope Hydrology 2023

10:45 AM - 12:15 PM

[AHW23-P05] Water chemistry and nitrogen isotopic ratio of river water in the Makinohara Plateau, Shizuoka, Japan

Tatsuya Shimeno¹, *Masaya Yasuhara¹, Seongwon Lee¹, Yuki Itoh³, Takashi Nakamura² (1.Rissho Univ., 2.Yamanashi Univ., 3.Graduate School, Rissho Univ.)

10:45 AM - 12:15 PM

[AHW23-P06] The formation mechanism of Akaike Pond at the northern foot of Mt. Fuji in 2022 revealed by groundwater level observations and water quality and stable isotope analyses

*Shinya Yamamoto¹, Takashi Nakamura², Seongwon Lee³, Yuki Itoh³, Masaya Yasuhara³ (1.Mount Fuji Research Institute, Yamanashi Prefectural Government, 2.International Research Center for River Basin Environment, University of Yamanashi, 3.Faculty of Geo-Environmental Science, Rissho University)

Thu. May 25, 2023 10:45 AM - 12:15 PM Online Poster Zoom Room (8) (Online Poster)

[J] Online Poster
| A (Atmospheric and Hydrospheric Sciences )
| A-HW Hydrology & Water Environment

[A-HW24] Water Environment and Geology in Urban Areas

10:45 AM - 12:15 PM

[AHW24-P03] The role of shallow groundwater in river flow formation of the Nomigawa River, Ota, Tokyo, Japan

*Masaya Yasuhara¹, Seongwon Lee¹, Yuki Itoh³, Akihiko Inamura² (1.Rissho Univ., 2.Geological Survey of Japan, AIST, 3.Graduate School of Rissho Univ,)

Fri. May 26, 2023 10:45 AM - 12:15 PM Online Poster Zoom Room (25) (Online Poster)

[J] Online Poster
| M (Multidisciplinary and Interdisciplinary)
| M-ZZ Others

[M-ZZ44] Marine manganese deposits - Genesis, exploration and development

10:45 AM - 12:15 PM

[MZZ44-P01] C and N stable isotope ratios of deep-sea organisms at Northwest Pacific seamounts with Co-rich ferromanganese crusts

*Nozomu Iwasaki¹, Seongwon Lee¹, Atsushi Suzuki², Shogo Kato³, Hiroyuki Yokooka³, Shota Mitsui⁴, Jumpei Minatoya⁵, Iguchi Akira², Miyuki Nishijima² (1.Faculty of Geo-Environmental Science, Rissho University, 2.Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology (AIST), 3. IDEA Consultants, Inc., 4.Marine Biological Research Institute of Japan Co., Ltd., 5.Japan Organization for Metals and Energy Security (JOGMEC))

Seongwon Lee

Speaker, Author, Co-Author