Nervously watching New Mexico’s Middle Rio Grande

I got an email this morning from a friend watching as the bottom begins to drop out of the Rio Grande’s flow at a place called Otowi, north of Albuquerque. When Otowi drops, the river here in Albuquerque soon follows – one of those upstream/downstream things. It’s been a weird year on our river – …

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“Burkholder’s Bible” – one of Albuquerque’s founding texts

The 1928 report they call “Burkholder’s Bible” – more formally “A Plan For Flood Control, Drainage and Irrigation of the Middle Rio Grande Conservancy Project” – must be treated as one of modern Albuquerque’s founding texts. Like any such text, it rewards careful reading. Also in the manner of such texts, the more you read …

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Rio Grande forecast drops another 100,000 acre feet

Following what NRCS forecaster Angus Goodbody describes as “an exceptionally dry April”, our anticipated Rio Grande runoff into New Mexico’s Middle Rio Grande valley (meaning the flow at the Otowi gauge) is down 100,000 acre feet from a month ago. That’s about 44 percent of the 30-year mean. Importantly, April was really our last chance …

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Rio Grande so low I needed to switch to log scale

I mostly hate log scale in graphs I use for broad communication purposes. It’s just not intuitive. But I’ve made the switch for this year’s Rio Grande, because the flows are so low that we need the log scale, because at really low flows small changes become big, if that makes any sense. The difference …

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New Mexico’s Rio Grande: Last year bad, this year worse

An email exchange with a friend who helps manage New Mexico’s water led to the graph above, my first stab at a visualization to try to show the accumulation of two bad years’ flow on the Rio Grande. Not quite sure this does all the work yet that I need of it, but perhaps worth …

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How Albuquerque’s Rio Grande looks now, and what to expect this spring and summer

We stopped on Saturday’s bike ride for one of my favorite views of the Rio Grande, looking north from the Gail Ryba Bridge (the bike bridge that parallels Interstate 40). The Rio Grande looks great right now, but looks can be deceiving. This time of year there’s always “base flow” – the basic winter flow …

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The “novel ecosystem” of Albuquerque’s valley ditches

This morning’s Downtown Albuquerque News (some of my favorite Albuquerque journalisms, worth ever $ spent to subscribe) has an item on Middle Rio Grande Conservancy District board member Barbara Baca’s thoughts on ditchbank vegetation: Through its vast network of irrigation ditches, the Middle Rio Grande Conservancy District is primarily in the water delivery business, but …

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