Via Nature podcast, Alex Witze on the grand pulse flow experiment

If I’d done the geek stuff right, hit the play button below to hear a really nice piece by Alex Witze of Nature magazine from the Colorado River delta pulse flow. (I know, it’s a magazine, this is audio. Brave new world and all.) If I haven’t done the geek stuff right, you can probably …

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It now looks like 2017 is the earliest we could see a shortage declaration on the Colorado River

The latest Bureau of Reclamation monthly basin operating report, out today (the “24-month study”, pdf), makes it increasingly clear that we’re not going to see Lake Mead drop to levels that would require a shortage declaration in 2016. The shortage is based on Lake Mead’s surface elevation, and the trigger level is 1,075 feet above sea …

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pulse flow progress

Courtesy of the folks at CILA, the Mexican boundary and water commission, the latest Colorado River pulse flow map shows water making it past the Laguna restoration sites in the Colorado River delta, continue its slow push toward the Sea of Cortez:

In Las Vegas, an acknowledgment that growth is gone

You can’t understand water in the west without understanding urban growth patterns. They’re joined at the hip. Here, in a single graph, is the explanation for the Vegas announcement yesterday that its two main water agencies are laying off 7.5 percent of their staff: Henry Brean explained it thus: The Southern Nevada Water Authority and …

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Welcome, pulse flow readers. Buy my (old) book!

It occurs to me that the brief and delightful pulse flow of clicks to this blog reading my recent coverage of what’s going on in the Colorado River delta might be potential book buyers. (Duh. Marketing is not my strength.) It’s called The Tree Rings’ Tale, a science book for kids (middle school aged, 13 …

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land and water: Colorado River pulse flow arrives at Laguna

Folks on the Colorado River delta “pulse flow” science monitoring team sent around a few pictures yesterday taken by the Sonoran Institute’s  Tomás Rivas of the water arriving at the Laguna CILA environmental restoration site. The beauty of this picture for me, beyond the obvious sight of water in a formerly dry delta river channel, is …

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after the rush, getting down to the science

Ultimately, what’s going on down in the Colorado River right now turns on a complicated mix of politics and science. The politics involves how much support advocates can gain for environmental restoration of the troubled system, on both sides of the border. The science supports those decisions After the rush of excitement about the historic …

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declining Colorado River Basin groundwater reserves

New data from NASA’s GRACE satellite, which scientists use to track changes in groundwater storage, shows some remarkable declines in the Colorado River Basin, according to a recent presentation by Jay Famiglietti of UC Irvine to a California legislative committee (huge thanks to Chris Austin for catching this and bringing it to my attention): “Unfortunately, …

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