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How does the fire and smoke map work?
Sensor Data Pilot: EPA and USFS are conducting a pilot project to add data from low-cost sensors to the Fire and Smoke map. While these sensors don’t meet the rigorous standards required for regulatory monitors, they can help you get a picture of air quality nearest you especially when wildfire smoke is in your area.
What happens to the smoke from a fire after dark?
After dark, atmospheric conditions change rapidly becoming stable. Under stable conditions, smoke will not rise except from the heat of the fire and then, only for a short distance. The fire itself will not burn as intense. Any smoke still in the air will drop back down to the ground.
What causes smoke to drop back down to the ground?
Any smoke still in the air will drop back down to the ground. A temperature inversion is an extreme example of stable conditions. It will act as a “lid” on the fire. The circulation around a low-pressure area causes horizontal converging of air at low levels and lifting of air near the center.
How does the mixing height of smoke affect dispersion?
The higher the mixing height, the higher the smoke will rise although it will not reach the mixing height except possibly when fuel loading is high and the fire is very intense. This in turn allows it more room to disperse. The bottom of cumulus clouds is usually a good indicator of the mixing height.
How can I change the direction of smoke?
You can disable this by setting Smoke to 0 in Domain Settings > Smoke Flames > Reaction: You can emit particles in all directions by using a sphere and increasing the Normal value which sets the starting velocity in the normal direction.
How does the distribution of the fire plume change?
Distribution Fire plumes contain both flames and buoyant smoke Temperature distribution of the gases in the buoyant plume is changed when restricted under ceilings 9 Features of the Fire Plume 10 Damage patterns (NFPA 921-6, 2008)
Where can I find air quality and smoke maps?
In the event you are unable to update your browser, here are some additonal sites that can provide air quality, fire and smoke information. Either allow geolocation from your device or use the search feature to select a location to see local conditions. Notice: The Sensor Data Pilot adds a new layer of air quality data from low-cost sensors.
What does local fire condition mean on Google Maps?
Fires: Local fire conditions indicate whether there is presence of a potential fire within a 150 mile radius of the user defined position (either set through geolocation or manually). Large fire incidents and satellite fire detections are shown. False detections have been known to occur.