Friday, December 07 2012 @ 01:47 PM EST
Contributed by: Don Winner
Ubillus spoke about the statements that have been made about the impact of climate change on the level of rainfall, and he said what has changed is the frequency of the recurrence of extreme rainfall events, which previously occurred every 100 to 150 years.
He gave as an example what happened in the Western part of the province of Panama, where part of the floods were caused by natural landslides next to the Caimito river, which dragged the forest floor to the river. Besides trees, the current swept solid material and sediment, creating a sort of natural dam. The amount of water released when this natural dam gave way caused a sudden rise in the water level, which ultimately triggered the floods. (Telemetro)
Editor's Comment: So the rain triggered mudslides up river. The mudslides dropped dirt and trees into the river channel. This blocked the flow of water, and created a natural dam, and a lake behind it. When all of that failed and gave way, the wall of water came bursting down river, causing the flood. OK, this is the first time I've heard this explanation, and it makes sense.