Free the Waters

San Joaquin Valley water managers were surprised and baffled by water releases initiated by executive order, and the president’s bizarre claims about them.

https://sjvwater.org/trumps-emergency-water-order-responsible-for-water-dump-from-tulare-county-lakes/

It was no game on Thursday when area water managers were given about an hour’s notice that the Army Corps planned to release water up to “channel capacity,” the top amount rivers can handle, immediately.

This policy is dumb in several ways, so it’s hard to know where to start, but I think two pictures tell a pretty good story.

The first key point is that the reservoirs involved are in a different watershed and almost 200 miles from LA, and therefore unlikely to contribute to LA’s water situation. The only connection between the two regions is a massive pumping station that’s expensive to run. Even if it had the capacity, you can’t simply take water from one basin to another, because every drop is spoken for. These water rights are private property, not a policy plaything.

Even if you could magically transport this water to LA, it wouldn’t prevent fires. That’s because fires occur due to fuel and weather conditions. There’s simply no way for imported water to run uphill into Pacific Palisades, moisten the soil, and humidify the air.

In short, no one with even the crudest understanding of SoCal water thinks this is a good idea.

“A decision to take summer water from local farmers and dump it out of these reservoirs shows a complete lack of understanding of how the system works and sets a very dangerous precedent,” said Dan Vink, a longtime Tulare County water manager and principal partner at Six-33 Solutions, a water and natural resource firm in Visalia.

“This decision was clearly made by someone with no understanding of the system or the impacts that come from knee-jerk political actions.”

Another tangible user interface: the sandtable

This looks fun to play with: it’s a sandbox combined with digital sensing and projection tools. You shape your sand, and it maps the surface:

Digital Sandtable by Redfish Group @ Santa Fe Complex from stephen guerin on Vimeo.

Once your sandscape is constructed, you can simulate a forest fire on it, using a cigarette lighter as the ignition source, just like a real arsonist:

Lighting a fire on the Digital Sandtable from stephen guerin on Vimeo.

This isn’t quite as exciting to me as Jim Hines’ tangible user interface, because you can essentially change the initial conditions of your sandsystem, but not the structure of the model. However, it sure would be fun to play with, and could be pretty good at giving people insights about physical systems. It’s gone commercial as simtable.

I predict that this will soon go meta, with an ipad app that simulates the sandtable, allowing the user to push simsand around on the surface, flicking a lighter with a finger tap, creating the first virtual virtual forest fire environment.