Vegetation Response to Lower Colorado River pulse flow in 2014
Video source record: https://images.nasa.gov/details/GSFC_20141217_Colorado_m10280_Pulse_Flow
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Summary
It was 2000 the last time the Colorado River reached the Sea of Cortez, and over that time there has been a decline in the amount of healthy vegetation along the lower reaches of the river. In 2014, the U.S. and Mexico made an agreement, known as Minute 319, to release an experimental flow through the Morelos Dam and down the riverbed. On March 23rd, the floodgates were opened and the water started to flow. In total, 130 milion cubic meters (105,000 acre-feet) of water was sent through the dam. Though most of the water soaked into the ground in the first 37 miles, a portion of the flow did make it down to the delta. Water flowing on the surface reached areas that had been targeted for restoration, and the replenished groundwater revived vegetation along the entire route to the sea. Pamela Nagler, of the U.S. Geological Survey’s Southwest Biological Science Center in Tucson, Arizona, compared satellite images of pre-flow August 2013 to post-flow August 2014. Using data from NASA/USGS
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Details
- Source collection: NASA
- License: Public Domain (US Government)
- Category: Space