A smoke cloud refers to a visible mass of smoke, usually resulting from fires or industrial processes. However, the term "smoke cloud" can sometimes be differentiated depending on its source and appearance.
Understanding Smoke Clouds
Smoke clouds are essentially collections of airborne particles and gases produced by combustion. They are often associated with visible plumes that can be localized or spread over large areas depending on the source and environmental factors.
Key Characteristics
| Feature | Description |
|---|---|
| Source | Primarily from fires (wildfires, structural fires) and industrial emissions. |
| Composition | Mix of ash, soot, partially burned materials, and various gases. |
| Visibility | Usually very visible due to the particulate matter it contains. |
| Shape | Can be distinct and defined, especially from localized sources. |
| Mobility | Highly mobile, carried by wind currents. |
Differentiating Smoke Clouds
According to meteorological convention, the term "smoke" can be differentiated based on appearance:
- Smoke (Lithometeor): When “smoke” is present in the free atmosphere and appears diffuse without clear outlines, it's considered a lithometeor and distinguished from a smoke cloud.
- Smoke Cloud: These are clouds specifically from fires or industry. They often possess more discernible outlines compared to the diffuse appearance of lithometeor smoke.
Examples of Smoke Cloud Sources:
- Wildfires: Large wildfires create significant smoke clouds that can travel vast distances.
- Industrial Plants: Factories and power plants emit smoke clouds that can contribute to air pollution.
- Volcanic Eruptions: While often termed "ash clouds", these eruptions can also include smoke that forms a visible cloud.
- Controlled Burns: Agricultural burns or prescribed burns generate smoke clouds, often smaller and more controlled.
Impact of Smoke Clouds
Smoke clouds can affect:
- Air Quality: They can significantly degrade air quality, posing health risks, especially to individuals with respiratory problems.
- Visibility: Smoke reduces visibility, impacting transportation and daily activities.
- Climate: Large-scale smoke clouds can affect regional climate patterns.
In summary, a smoke cloud generally refers to the visible mass of smoke originating from fire or industrial activity, distinguished by its discernible outlines, unlike the diffuse nature of smoke as a lithometeor in the atmosphere.
