Posts tagged wildfire
OSMP Ranger’s weekly report
Feb 6th
Rangers responded to:
• A report of an injured on the Baseline Trail. The hiker slipped on the ice, attempted to brace herself with her arms and potentially broke her right wrist. Rangers worked with both Boulder Fire and AMR on this call.
• A report of a suicidal party in the Flagstaff area. The suicidal party stated that he wanted to jump off of one of the Flatirons to his Dad who then called 911. Rangers working with BCSO to find the party at Crown Rock and helped with his arrest and transport to hospital.
• A report of a mtn lion cache in the area of 800 Willowbrook. Mtn lion was seen pawing the home owners sliding glass door. Rangers worked with CPW on this call.
• A report of an injured hiker on the Mesa Trail who had slipped and fell on the ice, hitting his head. Rangers worked with Boulder Fire on this call.
• A report of a vehicle fire at Cathedral Park. The fire started because of an electrical issue with the car. Rangers worked with Boulder Fire and Denver Water on this call.
• A report of a hiker getting kicked in the head by a cow at the North Teller Trailhead.
The hiker saw a cow giving birth and thought it was in distress and went over to look and help. The cow promptly kicked her, loosening some of the hiker’s teeth.
• A report of an active criminal trespass happening off of Eldorado Springs Dr. OSMP Rangers were first to respond and detained the suspect. The suspect, later identified as Senator Mark Udall’s son, had broken into three vehicles and stolen a small amount of cash. The suspect was arrested and drug paraphernalia was found to be in his possession.
• A wildfire at Buckingham Picnic area. The fire started in a logjam and heavy equipment had to be used to get to the interior of the fire. Jay Jones brought in a backhoe to help clear the debris. Rangers worked with Lefthand Fire on this call, it is unknown how this fire was started.
• A report of an injured sledder at Chautauqua, Rangers worked with AMR on this call.
Community Forestry Sort Yards to open in May
Mar 20th
“Spring is a great time of year to get out on your land and begin preparing your property for wildfires.”
Boulder County, Colo. – The Boulder County Forest Health Initiative is pleased to announce the Community Forestry Sort Yard operating schedule for 2013. Two sort yard locations are open each summer to provide residents a free of charge location to dispose of logs and slash cut from their land.
The sort yards do not accept yard clippings, raked up pine needles, root balls, construction materials, dirt, furniture, household trash or wood with metal in it. Sort yard staff will refuse loads that contain unacceptable items.
Allenspark/Meeker Park Sort Yard
- Spring hours: Fridays and Saturdays from 9 a.m. to 5 p.m. May 24th thru June 15th
- Summer/Fall hours: Tuesday thru Saturday 9 a.m. to 5 p.m. July 30th thru Oct. 19th
Nederland Area Sort Yard
- Spring hours: Tuesday thru Saturday from 9 a.m. to 5 p.m. May 1st thru July 6th (closed July 4th)
- Summer/Fall hours: Fridays and Saturdays from 9 a.m. to 5 p.m. Sept. 20th thru Oct. 12th (these dates are tentative)
The Community Forestry Sort Yards may have additional closures during the open season due to weather, staff training or other administrative requirements. To check the operational status of a sort yard please call 303-678-6368.
Boulder County encourages all of its residents to be good stewards of their backyard forest and to implement effective wildfire mitigation on their land.
“The spring is a great time of year to get out on your land and begin preparing your property for wildfires,” said Ryan Ludlow outreach forester with the county’s Land Use Department. “Simple actions like picking up downed branches, raking away all pine needles within 5 feet of your structures, cutting tall dead grass and moving leftover winter firewood piles off of porches and placing them at least 30 feet away from the home can really help improve the chances of your home surviving the next wildfire.”
If you want to learn more about how to implement effective wildfire mitigation on your land join us at the Nederland Community Center on May 11 for a half day workshop focused on “Firewise Landscaping.” Learn how to transform your home’s perimeter into an area that you can not only use, but also looks good and helps protect your home from wildfire.
For more information about the sort yard program or how to implement proactive wildfire mitigation on your land, contact Ryan Ludlow, Boulder County Forest Health Initiative’s outreach forester, at 720-564-2641 orrludlow@bouldercounty.org.
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Fourmile canyon blaze yields new insight into climate change, CU scientists say
Aug 27th
heat-trapping effects of wildfire smoke particles
When the Fourmile Canyon Fire erupted west of Boulder in 2010, smoke from the wildfire poured into parts of the city including a site housing scientists from the University of Colorado Boulder’s Cooperative Institute for Research in Environmental Sciences and the National Oceanic and Atmospheric Administration.
Within 24 hours, a few researchers at the David Skaggs Research Center had opened up a particle sampling port on the roof of the building and started pulling in smoky air for analysis by two custom instruments inside. They became the first scientists to directly measure and quantify some unique heat-trapping effects of wildfire smoke particles.
“For the first time we were able to measure these warming effects minute-by-minute as the fire progressed,” said CIRES scientist Dan Lack, lead author of the study published today in the Proceedings of the National Academy of Sciences.
The researchers also were able to record a phenomenon called the “lensing effect,” in which oils from the fire coat the soot particles and create a lens that focuses more light onto the particles. This can change the “radiative balance” in an area, sometimes leading to greater warming of the air and cooling of the surface.
While scientists had previously predicted such an effect and demonstrated it in laboratory experiments, the Boulder researchers were one of the first to directly measure the effect during an actual wildfire. Lack and his colleagues found that lensing increased the warming effect of soot by 50 to 70 percent.
“When the fire erupted on Labor Day, so many researchers came in to work to turn on instruments and start sampling that we practically had traffic jams on the road into the lab,” Lack said. “I think we all realized that although this was an unfortunate event, it might be the best opportunity to collect some unique data. It turned out to be the best dataset, perfectly suited to the new instrument we had developed.”
The instrument called a spectrophotometer can capture exquisite detail about all particles in the air, including characteristics that might affect the smoke particles’ tendency to absorb sunlight and warm their surroundings. While researchers know that overall, wildfire smoke can cause this lensing effect, the details have been difficult to quantify, in part because of sparse observations of particles from real-world fires.
Once the researchers began studying the data they collected during the fire, it became obvious that the soot from the wildfire was different in several key ways from soot produced by other sources — diesel engines, for example.
“When vegetation burns, it is not as efficient as a diesel engine, and that means some of the burning vegetation ends up as oils,” Lack said. In the smoke plume, the oils coated the soot particles and that microscopic sheen acted like a magnifying glass, focusing more light onto the soot particles and magnifying the warming of the surrounding air.
The researchers also discovered that the oils coating the soot were brown, and that dark coloration allowed further absorption of light, and therefore further warming the atmosphere around the smoke plume.
The additional warming effects mean greater heating of the atmosphere enveloped in dark smoke from a wildfire, and understanding that heating effect is important for understanding climate change, Lack said. The extra heating also can affect cloud formation, air turbulence, winds and even rainfall.
The discovery was made possible by state-of-the-art instruments developed by CIRES, NOAA and other scientists, Lack said. The instruments can capture fine-scale details about particles sent airborne by the fire, including their composition, shape, size, color and ability to absorb and reflect sunlight of various wavelengths.
“With such well-directed measurements, we can look at the warming effects of soot, the magnifying coating and the brown oils and see a much clearer, yet still smoky picture of the effect of forest fires on climate,” Lack said.