Archive of posts filed under the Ribbons of Green category.

After a high-flow spring, Albuquerque’s Rio Grande is about to drop in a hurry

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We’ve been having a great year on the Rio Grande through Albuquerque, with overbanking flows to delight the river nerds and mosquitos alike. But this is about to change. Beginning next week (June 26, 2023), the Army Corps of Engineers will begin dropping flows out of Cochiti Reservoir, the main stem dam upstream of town. …

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The Stotts Lateral: new candidate for “Albuquerque’s Most Urban Ditch”

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My search for Albuquerque’s “Most Urban Irrigation Ditch” took us yesterday to the Stotts Lateral in the North Valley. The Stotts is about a half mile long, carrying water under the railroad tracks from the Alameda Lateral to the Alameda Drain. The east half is underground. The west half, tiny and concrete-lined, is an urban …

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On Cochiti dam and the notion of “flooding”

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Rio Grande flow dropped this week through Albuquerque, at a time when we should expect it to be rising with the accelerating melt of an unusually large snowmelt. What’s up with that? The answer (see below, I’m can’t figure out how to tl;dr this) is a case study in the stuff we’re trying to explain …

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Dust on snow seems to be increasing the chances of Rio Grande drying this year through Albuquerque

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We have a chance this year to watch a fascinating intersection of climate-change driven changes in the Rio Grande through Albuquerque as filtered through both physical infrastructure and what we call the “institutional hydrograph”. The tl;dr Dust on snow is likely to accelerate Rio Grande headwaters snowmelt, meaning all that stored water comes off earlier. …

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Ribbons of green and the sand hills beyond

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There’s a weird bench at the edge of a lovely little ten acre patch of desert sand hill scrub a ten minute walk from my office at the UNM School of Law. The path circles the edge of the university’s north golf course, which is green and lovely in its pumped-groundwater way. The path (It’s …

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Bosque overbanking as the Rio Grande rises

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In the early 1990s, a group of New Mexico scientists set up experimental plots at the Bosque del Apache National Wildlife Refuge on the Rio Grande south of Albuquerque for in an effort to determine what might happen when water was reintroduced to the flood-starved woods flanking the river. Their description of what happened is …

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Thick places, infrastructural inversions, and the gift of ideas

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  My friend Scot and I rode north on yesterday’s bike ride to see the Corrales Siphon pumps. Built in the 1930s, the siphon for nearly a century carried water beneath the Rio Grande to irrigate a thousand acres of land on the west side of the river at the northern end of the Albuquerque …

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