Update: Xinhua has confirmed that the rate of flow has indeed increased.
Update: Ripen reports that at 09:00 local time the flow had increased to 1210 cumecs. The breach is clearly occurring very fast now. The next three hours are critical.
Update: Aerial image of the breach, from http://news.sohu.com.
Note that the very steepest part of the channel is just below the crest. The magnitude of the flow will be determined by whether this migrates to the crest. The situation is on a knife-edge.I hope all of the soldiers have been pulled off the dam now!
The peak discharge increased to 1210m3/sec at 9:00 (Beijing time) and water level drops to 742.18m. We can guess the erosion rate is very high at this moment from rapid increase in discharge from 377 to 1210 within three hours.
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