How Dose Fire Express The Nature Of Wind ?
Answers
Answer:
hi
hope this helps you
plzz mark me as a brainliest
Explanation:
ir temperature has a direct influence on fire behavior because of the heat requirements for ignition and continuing the combustion process. We discussed radiant heat in the previous unit. Heat from the sun is transferred to the earth by radiation. This heat warms up the surface of the earth and the atmosphere close to the surface is in turn warmed by heat reflecting from the surface. This is the reason that the temperature above the surface is cooler than at the surface of the earth. These temperatures generally decrease about 3.5 degrees per thousand feet in altitude. This decrease is known as the adiabatic lapse rate.
Forest fuels receive heat by radiation from the sun. As a result, less heat is required for ignition. The differential heating of the earth�s surface is the driving force behind most of the influences on the atmosphere. The sun emits short-wave energy rays (radiation). When striking a solid object such as trees or grass, it is warmed. The surface absorbs some of the heat and reflects some in long-wave radiation that is absorbed by the water vapor in the air thus raising its temperature as well.
Arguably, temperature, is the single most important weather factor affecting fire behavior. Some might say that relative humidity is most important but we will learn that temperature drives relative humidity.
Answer:
Weather Elements that Affect Fire Behavior
What is weather? It is the state of the atmosphere's surrounding the earth at a certain area. The atmosphere is a gaseous mantle (mostly oxygen and nitrogen) encasing the earth and rotating with it in space. Weather is never static. It is dynamic, changing day-by-day, hour-by-hour and even minute-by-minute.
Of the three major components making up a fires environment (Fuel, Weather and Topography), weather is the most important, yet it is continuously changing. This unit will deal with the role weather plays in the start and spread of wildfires and in the use of prescribed Fires.