Temporal and spatial variations of bottom sediment characteristics around the Tama River mouth in Tokyo Bay, Japan

Ryuichi Ariji; Hiroshi Yagi; Kazuo Nadaoka; Yasuyuki Nakagawa; Hiroshi Ogawa; Kenichiro Simosako; Kazuhiro Shirai

Temporal and spatial variations of bottom sediment characteristics around the Tama River mouth in Tokyo Bay, Japan

Ryuichi Ariji, Hiroshi Yagi, Kazuo Nadaoka, Yasuyuki Nakagawa, Hiroshi Ogawa, Kenichiro Simosako, Kazuhiro Shirai

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

This study investigates the temporal and spatial variations in the characteristics of bottom sediments around the Tama River mouth. Sediment samples were taken from 28 points every 3 months between May 2007 and October 2009, including the Tama River mouth area and an offshore site with a water depth of about 24 m. The collected sediment cores were sliced into four layers by depth (0-1 cm, 1-2 cm, 2-4 cm, and 4-10 cm) and the samples were analyzed, which included determining grain size distribution, water content, ignition loss, and oxidation-reduction potential. The data showed that the sediments at different monitoring sites responded to the impact of the typhoonrelated flood that struck the Tama River in early September of 2007 quite differently. Drastic changes in water and organic content were observed, especially at the deep offshore site, due to the typhoon.

Original language	English
Title of host publication	Proceedings of the 21st (2011) International Offshore and Polar Engineering Conference, ISOPE-2011
Pages	999-1004
Number of pages	6
Publication status	Published - 2011
Externally published	Yes
Event	21st International Offshore and Polar Engineering Conference, ISOPE-2011 - Maui, HI, United States Duration: Jun 19 2011 → Jun 24 2011

Publication series

Name	Proceedings of the International Offshore and Polar Engineering Conference
ISSN (Print)	1098-6189
ISSN (Electronic)	1555-1792

Other

Other	21st International Offshore and Polar Engineering Conference, ISOPE-2011
Country/Territory	United States
City	Maui, HI
Period	6/19/11 → 6/24/11

All Science Journal Classification (ASJC) codes

Energy Engineering and Power Technology
Ocean Engineering
Mechanical Engineering

Cite this

Ariji, R., Yagi, H., Nadaoka, K., Nakagawa, Y., Ogawa, H., Simosako, K., & Shirai, K. (2011). Temporal and spatial variations of bottom sediment characteristics around the Tama River mouth in Tokyo Bay, Japan. In Proceedings of the 21st (2011) International Offshore and Polar Engineering Conference, ISOPE-2011 (pp. 999-1004). (Proceedings of the International Offshore and Polar Engineering Conference).

Temporal and spatial variations of bottom sediment characteristics around the Tama River mouth in Tokyo Bay, Japan. / Ariji, Ryuichi; Yagi, Hiroshi; Nadaoka, Kazuo et al.

Proceedings of the 21st (2011) International Offshore and Polar Engineering Conference, ISOPE-2011. 2011. p. 999-1004 (Proceedings of the International Offshore and Polar Engineering Conference).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Ariji, R, Yagi, H, Nadaoka, K, Nakagawa, Y, Ogawa, H, Simosako, K & Shirai, K 2011, Temporal and spatial variations of bottom sediment characteristics around the Tama River mouth in Tokyo Bay, Japan. in Proceedings of the 21st (2011) International Offshore and Polar Engineering Conference, ISOPE-2011. Proceedings of the International Offshore and Polar Engineering Conference, pp. 999-1004, 21st International Offshore and Polar Engineering Conference, ISOPE-2011, Maui, HI, United States, 6/19/11.

Ariji R, Yagi H, Nadaoka K, Nakagawa Y, Ogawa H, Simosako K et al. Temporal and spatial variations of bottom sediment characteristics around the Tama River mouth in Tokyo Bay, Japan. In Proceedings of the 21st (2011) International Offshore and Polar Engineering Conference, ISOPE-2011. 2011. p. 999-1004. (Proceedings of the International Offshore and Polar Engineering Conference).

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abstract = "This study investigates the temporal and spatial variations in the characteristics of bottom sediments around the Tama River mouth. Sediment samples were taken from 28 points every 3 months between May 2007 and October 2009, including the Tama River mouth area and an offshore site with a water depth of about 24 m. The collected sediment cores were sliced into four layers by depth (0-1 cm, 1-2 cm, 2-4 cm, and 4-10 cm) and the samples were analyzed, which included determining grain size distribution, water content, ignition loss, and oxidation-reduction potential. The data showed that the sediments at different monitoring sites responded to the impact of the typhoonrelated flood that struck the Tama River in early September of 2007 quite differently. Drastic changes in water and organic content were observed, especially at the deep offshore site, due to the typhoon.",

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AU - Ariji, Ryuichi

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AU - Ogawa, Hiroshi

AU - Simosako, Kenichiro

AU - Shirai, Kazuhiro

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AB - This study investigates the temporal and spatial variations in the characteristics of bottom sediments around the Tama River mouth. Sediment samples were taken from 28 points every 3 months between May 2007 and October 2009, including the Tama River mouth area and an offshore site with a water depth of about 24 m. The collected sediment cores were sliced into four layers by depth (0-1 cm, 1-2 cm, 2-4 cm, and 4-10 cm) and the samples were analyzed, which included determining grain size distribution, water content, ignition loss, and oxidation-reduction potential. The data showed that the sediments at different monitoring sites responded to the impact of the typhoonrelated flood that struck the Tama River in early September of 2007 quite differently. Drastic changes in water and organic content were observed, especially at the deep offshore site, due to the typhoon.

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Temporal and spatial variations of bottom sediment characteristics around the Tama River mouth in Tokyo Bay, Japan

Abstract

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