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There's A Lot At Stake In The Weekly US Drought Map (npr.org)
Crippling drought this year has caused more than $1 billion in damage. As it has played out, anyone affected by the drought or trying to manage it has turned to a once obscure map that has become key to understanding what's happening: the U.S. Drought Monitor. From a report: That includes water planners who decide resource allotments. Farmers who need water for their livelihood. Federal bureaucrats who use the map to calculate aid for the Livestock Forage Disaster Program. And then there are citizen scientists like Dave Kitts outside of Sante Fe, N.M. "I think it's a little obsessive, but I check it every Thursday," says Kitts, who has lived on the same 2-acre spread in New Mexico for decades. Dry years like this past one can crust the soil and kill his pinyon trees. "It's just upsetting and depressing to me," he says. "And when it moves the other direction, it definitely lifts my spirits."
Scientist Mark Svoboda started the drought map 20 years ago, when Congress took an interest after drought struck Washington, D.C. He directs the National Drought Mitigation Center at the University of Nebraska, Lincoln. "We're covering everything," he says, "from groundwater, stream flow, temperature." In bad drought years like this one, the map has patches of crayon yellow, orange and red that show the levels of drought. Right now, there's a deep crimson bull's-eye in the hardest-hit area of the southwest, where Colorado borders Utah, Arizona and New Mexico. The Drought Monitor map is updated weekly, often taking into account input from hundreds of people -- in addition to scientists. Ranchers and farmers from across the country also send missives to state and national offices, making the map a mix of art, science and farmer wisdom. But it starts with recommendations from state climatologists on any potential changes.
Scientist Mark Svoboda started the drought map 20 years ago, when Congress took an interest after drought struck Washington, D.C. He directs the National Drought Mitigation Center at the University of Nebraska, Lincoln. "We're covering everything," he says, "from groundwater, stream flow, temperature." In bad drought years like this one, the map has patches of crayon yellow, orange and red that show the levels of drought. Right now, there's a deep crimson bull's-eye in the hardest-hit area of the southwest, where Colorado borders Utah, Arizona and New Mexico. The Drought Monitor map is updated weekly, often taking into account input from hundreds of people -- in addition to scientists. Ranchers and farmers from across the country also send missives to state and national offices, making the map a mix of art, science and farmer wisdom. But it starts with recommendations from state climatologists on any potential changes.
You live in a DESERT. You should not be living there.
Living in a desert is fine if you like the desert and are happy with cacti and rocks. The problem is people that move to the desert, install huge irrigation systems, and grow lawns that look like the green grass of England.
Everything you've said is false. I work at UNL and I know people who actually work shifts to update the US Drought Monitor (USDM). I'm not involved with that work, but I've learned quite a bit about what drought is and how the USDM is created.
Drought is based on conditions relative to climatological normals for that particular location. Climate is generally averaged over 30 year periods, so droughts are abnormally dry conditions relative to the average over the past 30 years. While the current D4 (exceptional drought) conditions are around the four corners area, which is generally arid, that's just where it happens to be abnormally dry now. You can look back over the drought monitor archive and you'll see drought conditions in many other areas.
Drought occurs when conditions are abnormally dry. Deserts exist where it's normally dry. In any location, water shouldn't be allocated in ways that are unsustainable. The High Plains are semi-arid, but they're not a desert. Agriculture in that region is driven by extracting water from the Ogallala Aquifer at rates far faster than the aquifer can be recharged. The best options are to bring water from other areas, which can be expensive, or to limit water use in a way that's more sustainable.
When water is brought in from other locations, it's referred to as an aqueduct rather than a pipeline, and such things do exist. For example, Los Angeles gets a substantial amount of water from the Los Angeles and Colorado River aqueducts. The Los Angeles aqueduct is 419 miles long, so water is being transported over quite a distance. The original poster is simply recommending a much more extensive aqueduct system to help alleviate droughts. It's reasonable, provided water isn't being transported from other areas is an unsustainable manner.
And no, not all deserts have been deserts for thousands of years. Sometimes that change happens over shorter time scales, though certainly beyond the 30 year definition of climate. For example, the Sandhills of western Nebraska are now semi-arid, with grass growing in sandy soil. Several hundred years ago during the Medieval Warm Period, western Nebraska was quite a bit drier, and the Sandhills were a desert with active sand dunes. Conditions are wetter now, just several hundred years later, and the dunes are stabilized by the grasses. Transition in and out of desert conditions doesn't necessarily require thousands of years.