Yoko's 人生=旅 on this Blue Planet
1)”Fukushima: NHK Documentary; Downwind From Disaster”、2013.1.1. 2)太平洋放射能汚染拡散予想図 2011.11.11. & 3)セシウム137の太平洋への汚染10年間­シミュレーション 2012.7.9.
1)ドキュメンタリー:”Fukushima: NHK Documentary; Downwind From Disaster”、2013.1.1.

Published on Jan 1, 2013:”Minamisoma, Fukushima Prefecture
Earthquake, tsunami, nuclear catastrophe.
This is a record of people in that one town caught up in the triple disaster.
Threatened by the unseen forces of radiation, what did the residents do? What was their state of mind?
"Why should we evacuate, why do we have to flee?"
Toshikazu Owada, Minamisoma City Official: They came in from the lobby over there. Self Defense Force personnel. Running and shouting, "The nuclear plant will explode. Evacuate to at least 100 kilometers."
They were shouting in loud voices and rushing all around.
Outside a steady stream of Self Defense Force vehicles was already heading out of town.
Seeing them evacuate made me realize this was serious.

All material provided on this channel is for educational purposes only. No copyright infringement intended.”

Fukushima: NHK Documentary; Downwind From Disaster

2)太平洋放射能汚染拡散予想図 2011.11.11. & 2)セシウム137の太平洋への汚染10年間­シミュレーション 2012.7.9.

1)太平洋放射能汚染拡散予想図 2011.11.11.

ASR・太平洋の放射能汚染拡散図 Nov.11,2011updated, Sea Contamination Spreading

3)セシウム137の太平洋への汚染10年間­シミュレーション 2012.7.9.

セシウム137の太平洋への汚染10年間­シミュレーションの説明 (音声説明+日本語字幕) *Model simulations on the long-term dispersal of 137Cs released into the Pacific Ocean off Fukushima Published 7/9, 2012.

<日本語訳・字幕↓:Jo2Rayden>*セシウム137の太平洋への汚染10年間­シミュレーションの説明 (音声説明+日本語字幕) 
*Model simulations on the long-term dispersal of 137Cs released into the Pacific Ocean off Fukushima Published 7/9, 2012. (English explanation) http://junebloke.blog.fc2.com/blog-en...
*Erik Behrens et al 2012 Environ. Res. Lett. 7 034004
*GEOMAR | Helmholtz Centre for Ocean Research, Kiel
*GEOMAR ヘルムホルツ海洋研究センター、キール http://www.geomar.de/news/article/fuk...

*Video sequence of the time course over a period of 10 years after Fukushima Nuclear disaster.The colors illustrate the dilution relative to the initial concentration in the Japanese coastal waters.

<翻訳>『 *我々の研究は、2011年3月に日本を襲った悲惨な地震とその後の津波の影響の一つ­を扱っています。




アニメーションは、色付けで海洋表面­での拡散を示しています。この色は、汚染水放出期間終了時の福島沖沿岸地域における初­期濃度に対する相対的な追跡濃度を表しています。 トレーサーは、汚染水放出後、この地域の潮流を支配する渦により南方へと拡散開始した­最初の週の非常に活動的な黒潮の状態を、計算に入れている。


*A sequence of global ocean circulation models, with horizontal mesh sizes of 0.5°, 0.25° and 0.1°, are used to estimate the long-term dispersion by ocean currents and mesoscale eddies of a slowly decaying tracer (half-life of 30 years, comparable to that of 137Cs) from the local waters off the Fukushima Dai-ichi Nuclear Power Plants. The tracer was continuously injected into the coastal waters over some weeks; its subsequent spreading and dilution in the Pacific Ocean was then simulated for 10 years. The simulations do not include any data assimilation, and thus, do not account for the actual state of the local ocean currents during the release of highly contaminated water from the damaged plants in March--April 2011. An ensemble differing in initial current distributions illustrates their importance for the tracer patterns evolving during the first months, but suggests a minor relevance for the large-scale tracer distributions after 2--3 years. By then the tracer cloud has penetrated to depths of more than 400 m, spanning the western and central North Pacific between 25°N and 55°N, leading to a rapid dilution of concentrations.

The rate of dilution declines in the following years, while the main tracer patch propagates eastward across the Pacific Ocean, reaching the coastal waters of North America after about 5–6 years. Tentatively assuming a value of 10 PBq for the net 137Cs input during the first weeks after the Fukushima incident, the simulation suggests a rapid dilution of peak radioactivity values to about 10 Bq m−3 during the first two years, followed by a gradual decline to 1–2 Bq m−3 over the next 4–7 years. The total peak radioactivity levels would then still be about twice the pre-Fukushima values.


テーマ:環境・資源・エネルギー - ジャンル:政治・経済

2013/03/11(月) 20:27:25 | URL | りょうこ #-[ 編集]
昔から海洋投棄などが。。。: 汚染予測図

> これを見ると、いずれ周辺国から莫大な損害賠償請求がきてもおかしくないですね。海のものは、食べられないなという思いになっています。


2013/03/13(水) 02:32:43 | URL | yokoblueplanet #-[ 編集]
秘密: 管理者にだけ表示を許可する