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Forests Aflame

08/19/2010 5:13 PM

Weather forecast says sunny for the rest of the week yet the sky is a dull steel grey. It is only when you step outside you realize that its not rain clouds but smoke that is hanging over the city. The smoke has blown in from the west where British Columbia is burning. Over 300 forest fire are raging and no relief is in sight, in fact they are predicting rising winds which may fan the flames and spread the fires.

The news screnes are full of scenes from the front, the tireless firefighters waging war on the ground while the planes and helicopters drop water and fire retardants from above. As I watch all this I realize though that the methods of fighting forest fires don't seem to have changed since I witnessed them almost half a century ago.

Is there anything new we have to offer the brave fire crews? Are there any new technologies that could help battle blazes that cover hundreds hectares (read acres if you must). Or is the new thinking I have heard of late on some documentries correct and we should just "let them burn"?

On the lighter side I don't need to take my cigaretts with me when I go out for a smoke these days.

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#1

Re: Forests Aflame

08/19/2010 5:35 PM

Smoking is bad for you, anyway.

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#2

Re: Forests Aflame

08/19/2010 5:50 PM

Oh, gee. I believe converting a Boeing 747 to a tanker is a pretty big step:

Wikipedia has numerous articles on the subject: One here.

When I lived in Missoula Montana, our shop was across the highway from USFS Headquarters. Located on the campus include:

Aerial Fire Depot, Missoula Smokejumpers, Rocky Mountain Research Station, the Fire Sciences Laboratory, Missoula Technology and Development Center (MTDC), Wildland Fire Assesment System (this is an interesting site), and numerous others.

All of these entities have a constant project: Improve what we are doing today, and respond to an incident RIGHT NOW with the tools and methods that we have.

As far as the "Let 'er burn" policy, that option is not exercised in USA too often anymore. Reference the fire in Yellowstone, 1988 as the end (almost) of that policy.

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#3

Re: Forests Aflame

08/19/2010 7:16 PM

To my knowledge the methods are basically the same, and so is the (lack of) data. My brother worked with a couple of fire departments in Alaska. Disclaimer: we're stat geeks. He said he had never seen any data to indicate that the water and fire retardants dropped from air craft coupled with the efforts of ground crews had any significant impact on the duration or extent of major forrest fires. Have you ever seen data on the topic?

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#4

Re: Forests Aflame

08/19/2010 7:26 PM

While the modified 747 grabs the aerial firefighting headlines for the large load that it can deliver, Bombardier makes the purpose built model 415 firefighting plane. This amphibious plane does carry a lighter load but is designed to skim a lake or deep river to fill the water drop tanks. This smaller load craft can then much more quickly and repeatedly get a smaller dousing of water to fight a forest fire.

But you are correct that one of the newest ideas is to let small fires burn themselves and particularly the small scrub brush out to reduce the amount of fuel available to be converted into a large unmanageable fire. The problem with this approach is that we've been previously quickly extinguishing small fires for decades, so there's lots of kindling like scrub in the forests now to ignite the large trees and becoming an unmanageable fire.

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#5

Re: Forests Aflame

08/20/2010 7:15 AM

The best way to fight these fires is to prevent them in the first place through controlled burns of dry underbrush.

Unfortunately, cities, counties, townships, etc. don't have or don't feel like spending the money and wait until a fire becomes an emergency to respond.

In areas where these fires are prone to happen there should be dedicated teams of people doing controlled burns whenever conditions are right, this would save huge amounts of money and heartache in the long run. IMO

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#6

Re: Forests Aflame

08/21/2010 12:17 AM

The best way to fight fire is with fire.

This has been well known to many of the old timers who lived with a greater knowledge of the environment than the university degrees who consider their certificate of incompetence to be more valuable than practical knowledge.

I'm not sure of the environment of which you speak, but from my own experience (and what has been passed on from old woodcutters), fire is very necessary in some areas to restore biodiversity to the areas that have not burnt for many years (and can be used to reduce the danger to human life and enhance asset protection as well).

My own land (after much haranguing of the Govt. Environment management agency who did not understand the necessity of fire), was used as a trial burn to see the result of burning areas that had not burnt for many years.

Prior to the burn in 2004, botanists identified 50 plant species in this senescent Narrow leaf scrub, yet after the fire and subsequent regeneration from seed/stumps, over 150 plant species were identified.

A large number of the species considered rare or endangered were then found, and the burn showed that those who just considered burning to be land clearing were nothing but 1st Degree fools (PHD).

On 6 Dec 2007, Kangaroo Island had 12 lightning strikes that lit up and eventually burned 20% of the total land area, (about 40% of all the scrub on the Island), and it was only the effort of firefighters (farmers, bulldozer operators, Country Fire Service, DEH etc that the fires were brought under control before the whole Island was burnt.

The best way to fight fire is with preparation before hand, by burning mosaic patches, and putting in roads from which back burning can occur with some safety.

The next best is get out of the way, and wait along the edge of pasture for a chance to control it.

It is important that we don't forget that fire is a natural and required part of the environment, and we should make use it to make it safer for us as well.

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#7

Re: Forests Aflame

08/21/2010 12:49 AM

I'm in Red Deer... The rain last night took a lot of the smoke away here.. but it was pretty thick yesterday.

Outside of red deer is a manufacturer/provider of Coiled Tubing for oil & gas drilling. They have a field full of rolls of 2-3" tubing... I bet there must be dozens of kilometers of tubing. I also know that Red Deer is home to CalFrac, amongst other frac companies, which operate dozens of high pressure (10000psi) pumping trucks. I also sure there are a few hundred mud tanks and mud pumping skids around.

I think that with all this high pressure, high volume pumping equipment, plus tubing, around here, that some of it could be put to use pumping water from lakes and rivers to containment ditches, and/or sprayed directly on fires, or used to fill localized ponds for helicopter delivery.

just a thought. I think the tubing should be available for rent or lease, and probably the pumping equipment too. Is there funds available from governmental emergency organizations?

Also from some online research, I understand that 1 gallon of water can produce 20 gallons of firefighting foam. therefore, I suggest that more foam be brought to the fight.

Chris

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