P138
	孤立化の進む左岸の堤防
The left Bank being isolated by the removal of surrounding sand layers(1999.1.21)

	潮流の変化により堤防の 上流側から露出が始まる
Isolation of the left Bank being continued by the removal of surronding sand layers(1999.1.21)

	堤防の孤立化が加速している 様子を拡大して見る
View of the removing sand layers around the left Bank of River Tonda(1999.1.21)

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