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LA wildfires force thousands to evacuate, NASA JPL closed

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Re: LA wildfires force thousands to evacuate, NASA JPL closed

#51
Los Angeles Fire Department funding was cut by over $23M only a few months ago. The fires are currently being fought by a skeleton crew of remaining fire fighters and volunteers. Can't say if that funding would have prevented it, but cutting it definitely has not helped.

Source: https://www.politico.com/news/2025/01/08/los-angeles-fires-m...

Edit: Changing a word, "gutted" -> "cut"

Re: LA wildfires force thousands to evacuate, NASA JPL closed

#52
post #29
post #21

One can imagine an IR monitoring (satellite or high flying drones like Reaper, one drone can see an IR source like a tank from 100km, so it would take just a few drones to monitor the the whole state for fires) with [almost] automated immediate dispatching of the fleet of drones (not small quadcopters, more like WWII size bombers) once the fire is detected. Would be much cheaper than having multi-billion dollar fires…

https://wifire.ucsd.edu/firis-in-depth

they use manned planes for monitoring - very costly and not scalable. And there is no "water-bombing" drone fleet. The manned "water-bombers" are extremely expensive, there is only small number of them and they actually carry pretty small amount of water as they are mostly helicopters or retrofitted passenger planes.

Re: LA wildfires force thousands to evacuate, NASA JPL closed

#53
post #40

With much of California, Texas and Florida property damage is concentrated where folks built where they shouldn’t have [1]. (At times nudged on by subsidised insurance [2].) Is that true in this case, too? (Being so close to LA, it doesn’t strike me that it could be.) If not, is my general thesis off? [1] https://www.npr.org/2023/11/06/1204923950/arizona-california... [2] https://www.sciencedirect.com/science/article…

To start with the last first, I would argue your general (and not uncommon) thesis is off in one key respect: it's not primarily (though in some percentage it may be) a matter of people building where they shouldn't have per se, but that they built what they shouldn't have where they did. Ie, it's 100% feasible as a matter of architecture/engineering/construction to build a structure that will shrug off a Cat 5 hurri…

Are there estimates for the cost of fireproofing Californian construction?

Re: LA wildfires force thousands to evacuate, NASA JPL closed

#56

Earlier quoted context omitted.

https://www.latimes.com/california/story/2023-07-31/york-fir...

I stand corrected! I guess the rains caused the desert to burn?

Lightning strikes and humans are probably the most common causes for fires in the desert.

Most desert areas in the US are a lot more lush than the blank sand dunes many people think of as desert. Usually there are a lot of bushes and grasses, and higher elevations can pine, juniper, oak, and other trees.

Re: LA wildfires force thousands to evacuate, NASA JPL closed

#57

Earlier quoted context omitted.

I think they’re talking about dousing when it first lights. That isn’t “a dumb person’s idea.” But it is presently beyond our capabilities, to say nothing of the huge privacy problem it would entail.

They're talking about both detecting and dousing. Note they mention two different kinds of drones (a few monitor drones, and then a fleet of drones to deploy and douse). The monitor drones could be practical, we've demonstrated that loitering sensor drones work well in other domains. Depending on the sensor payload (what it's looking for) and how the data is stored and used, it wouldn't really entail a huge privacy p…

> it wouldn't really entail a huge privacy problem unless you show up on IR sensors as well as a fire

If you’re hoping to do better than sighting a smoke column, you will absolutely have to be. We’re not at a loss of detecting entire houses burning.

Re: LA wildfires force thousands to evacuate, NASA JPL closed

#58
post #21

One can imagine an IR monitoring (satellite or high flying drones like Reaper, one drone can see an IR source like a tank from 100km, so it would take just a few drones to monitor the the whole state for fires) with [almost] automated immediate dispatching of the fleet of drones (not small quadcopters, more like WWII size bombers) once the fire is detected. Would be much cheaper than having multi-billion dollar fires…

The problem is not identifying fires. That's the easy part. As I watched the local news last night, I was able to watch (along with the anchors) the real-time growth of the Eaton fire from a tiny fire near the campgrounds into a behemoth. This morning, the local news covered the real-time development of 2 new fires (both were quickly contained).

The problem is fighting fires in steep, mountainous terrain filled with dryed out brush and trees when the winds are so strong (hurricane-strength gusts) that you can't provide any air support. The problem is that the winds were so strong last night and this morning that burning embers in the air could fly to and light structures miles away (which is how most of the current fires in Altadena started).

Re: LA wildfires force thousands to evacuate, NASA JPL closed

#59
post #19

With much of California, Texas and Florida property damage is concentrated where folks built where they shouldn’t have [1]. (At times nudged on by subsidised insurance [2].) Is that true in this case, too? (Being so close to LA, it doesn’t strike me that it could be.) If not, is my general thesis off? [1] https://www.npr.org/2023/11/06/1204923950/arizona-california... [2] https://www.sciencedirect.com/science/article…

Your thesis is way off, and people didn’t understand climate back when these areas were settled. And really, we still don’t know how to or can’t politically manage wildfires well. Part of climate change is that this man-induced change is making previously hospitable areas much less so.

[deleted]

Re: LA wildfires force thousands to evacuate, NASA JPL closed

#60

With much of California, Texas and Florida property damage is concentrated where folks built where they shouldn’t have [1]. (At times nudged on by subsidised insurance [2].) Is that true in this case, too? (Being so close to LA, it doesn’t strike me that it could be.) If not, is my general thesis off? [1] https://www.npr.org/2023/11/06/1204923950/arizona-california... [2] https://www.sciencedirect.com/science/article…

Unfortunately there's increasingly few places where natural disasters, of one sort or another, aren't inevitable. The PNW also burns regularly now, never mind the enormous earthquake looming under us that we're terribly unprepared for. Even the northeast is starting to get buried in smoke in the summer and hit by storms like Hurricane Sandy. Tornado Alley knocks out much of the midwest. What's left of the US? Desert and mountains?
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