HomeLatest ThreadsGreatest ThreadsForums & GroupsMy SubscriptionsMy Posts
DU Home » Latest Threads » Forums & Groups » Topics » Environment & Energy » Environment & Energy (Group) » The Disappearance of Ecua...

Sat Mar 28, 2020, 03:52 AM

The Disappearance of Ecuador's Tallest Waterfall





August 4, 2014 - March 13, 2020

August 4, 2014JPEG

March 13, 2020JPEG

Surrounded by lush vegetation and rare butterflies, the San Rafael Waterfall was one of the most captivating landscapes in Ecuador. With water dropping 150 meters (490 feet), the river and falls cut through a thick patch of cloud forest at the intersection of the Andes Mountains and the Amazon Basin. As the country’s tallest waterfall, it attracted tens of thousands of visitors per year.

But now, the cascade has disappeared. It stopped flowing on February 2, 2020. The images above show the falls and the surrounding river basin while water still flowed on August 4, 2014 (left) and after it stopped on March 15, 2020 (right). These images were acquired by the Operational Land Imager (OLI) on Landsat 8. The image below shows a photograph of the falls on November 28, 2012.



November 28, 2012

According to media reports, a huge sinkhole appeared in the Coca River a few meters before the falls and diverted the watercourse. Now, the water falls in three separate sections and at a less steep slope, which cannot be seen from viewing stations located around the original waterfall. Researchers believe the three streams could cause erosion at the channel’s origin and create a river upstream, which might change the topography of the valley.

The cause of the sinkhole is under investigation. Some geologists think the deformation occurred naturally, while other researchers suspect it may be tied to the new construction of the country’s largest hydroelectric plant. No matter the cause, Ecuador’s tourism ministry does not plan to reconstruct the riverbed or restore San Rafael. The waterfall is now part of history.

https://earthobservatory.nasa.gov/images/146502/the-disappearance-of-ecuadors-tallest-waterfall




1 replies, 377 views

Reply to this thread

Back to top Alert abuse

Always highlight: 10 newest replies | Replies posted after I mark a forum
Replies to this discussion thread
Arrow 1 replies Author Time Post
Reply The Disappearance of Ecuador's Tallest Waterfall (Original post)
Judi Lynn Mar 28 OP
littlemissmartypants Mar 28 #1

Response to Judi Lynn (Original post)

Sat Mar 28, 2020, 05:10 AM

1. ❤ nt

Reply to this post

Back to top Alert abuse Link here Permalink

Reply to this thread