Source term estimation of atmospheric release due to the Fukushima Dai-ichi Nuclear Power Plant accident by atmospheric and oceanic dispersion simulations

被引：150

作者：

Kobayashi, Takuya ^{[1
]}

Nagai, Haruyasu ^{[1
]}

Chino, Masamichi ^{[1
]}

Kawamura, Hideyuki ^{[1
]}

机构：

[1] Japan Atom Energy Agcy, Tokai, Ibaraki 3191195, Japan

来源：

JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY | 2013年 / 50卷 / 03期

关键词：

release amounts; 131I; 137Cs; atmosphere; ocean; Fukushima Dai-ichi nuclear power plant; monitoring data; dispersion simulation; WSPEEDI-II; SEA-GEARN; RADIONUCLIDES; CS-137; DISCHARGE; I-131;

D O I：

10.1080/00223131.2013.772449

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

The source term of the atmospheric release of 131I and 137Cs due to the Fukushima Dai-ichi Nuclear Power Plant accident estimated by previous studies was validated and refined by coupling atmospheric and oceanic dispersion simulations with observed 134Cs in seawater collected from the Pacific Ocean. By assuming the same release rate for 134Cs and 137Cs, the sea surface concentration of 134Cs was calculated using the previously estimated source term and was compared with measurement data. The release rate of 137Cs was refined to reduce underestimation of measurements, which resulted in a larger value than that previously estimated. In addition, the release rate of 131I was refined to follow the radioactivity ratio of 137Cs. As a result, the total amounts of 131I and 137Cs discharged into the atmosphere from 5 JST on March 12 to 0 JST on March 20 were estimated to be approximately 2.0 x 1017 and 1.3 x 1016 Bq, respectively.

引用

页码：255 / 264

页数：10

共 27 条

[1] Model simulations on the long-term dispersal of 137Cs released into the Pacific Ocean off Fukushima [J].

Behrens, Erik ;

Schwarzkopf, Franziska U. ;

Luebbecke, Joke F. ;

Boening, Claus W. .

ENVIRONMENTAL RESEARCH LETTERS, 2012, 7 (03)

[2] Preliminary Estimation of Release Amounts of 131I and 137Cs Accidentally Discharged from the Fukushima Daiichi Nuclear Power Plant into the Atmosphere [J].

Chino, Masamichi ;

Nakayama, Hiromasa ;

Nagai, Haruyasu ;

Terada, Hiroaki ;

Katata, Genki ;

Yamazawa, Hiromi .

JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY, 2011, 48 (07) :1129-1134

[3] Estimation of marine source-term following Fukushima Dai-ichi accident [J].

du Bois, P. Bailly ;

Laguionie, P. ;

Boust, D. ;

Korsakissok, I. ;

Didier, D. ;

Fievet, B. .

JOURNAL OF ENVIRONMENTAL RADIOACTIVITY, 2012, 114 :2-9

[4]

Grell G., 1994, NCARTN398STR, P122

[5]

Honda MC, 2012, GEOCHEM J, V46, pE1

[6] Numerical reconstruction of high dose rate zones due to the Fukushima Dai-ichi Nuclear Power Plant accident [J].

Katata, Genki ;

Terada, Hiroaki ;

Nagai, Haruyasu ;

Chino, Masamichi .

JOURNAL OF ENVIRONMENTAL RADIOACTIVITY, 2012, 111 :2-12

[7] Atmospheric discharge and dispersion of radionuclides during the Fukushima Dai-ichi Nuclear Power Plant accident. Part I: Source term estimation and local-scale atmospheric dispersion in early phase of the accident [J].

Katata, Genki ;

Ota, Masakazu ;

Terada, Hiroaki ;

Chino, Masamichi ;

Nagai, Haruyasu .

JOURNAL OF ENVIRONMENTAL RADIOACTIVITY, 2012, 109 :103-113

[8] Preliminary Numerical Experiments on Oceanic Dispersion of 131I and 137Cs Discharged into the Ocean because of the Fukushima Daiichi Nuclear Power Plant Disaster [J].

Kawamura, Hideyuki ;

Kobayashi, Takuya ;

Furuno, Akiko ;

In, Teiji ;

Ishikawa, Yoichi ;

Nakayama, Tomoharu ;

Shima, Shigeki ;

Awaji, Toshiyuki .

JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY, 2011, 48 (11) :1349-1356

[9] Development of a non-conservative radionuclides dispersion model in the ocean and its application to, surface cesium-137 dispersion in the Irish Sea [J].

Kobayashi, Takuya ;

Otosaka, Shigeyoshi ;

Togawa, Orihiko ;

Hayashi, Keisuke .

JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY, 2007, 44 (02) :238-247

[10] Interannual variability of temperature inversions in the subarctic North Pacific [J].

Masuda, Shuhei ;

Awaji, Toshiyuki ;

Sugiura, Nozomi ;

Toyoda, Takahiro ;

Ishikawa, Yoichi ;

Horiuchi, Kazutoshi .

GEOPHYSICAL RESEARCH LETTERS, 2006, 33 (24)

← 1 2 3 →