Fog can be found in a variety of locations, both over land and water. The specific locations often depend on the type of fog forming.
Types of Fog and Their Locations
There are different types of fog, each forming under different conditions. Based on the reference provided, here's a breakdown of where they're typically found:
Advection Fog
- Over Water: Advection fog, including steam fog, forms over water bodies when warm, moist air moves over cooler water.
- Over Land: Advection fog also forms over land as warm, moist air moves over a cooler land surface.
Radiation Fog (Ground or Valley Fog)
- Land: This type of fog, also called ground or valley fog, develops primarily over land surfaces.
- It forms during stable nighttime conditions where long-wave radiation emitted by the ground cools the surface, causing a temperature inversion.
Summary Table
| Type of Fog | Location(s) | Formation Factors |
|---|---|---|
| Advection Fog | Water (e.g., steam fog) and Land | Warm, moist air moving over cooler surfaces (water or land) |
| Radiation Fog | Land, often in valleys or flat areas | Radiational cooling of the ground during stable nighttime conditions; long-wave radiation emission leading to temperature inversion |
Examples of Fog Locations
- Coastal Regions: Advection fog is common along coastlines as warm, moist ocean air moves over cooler coastal waters or land.
- Valleys: Radiation fog often forms in valleys where cold air settles and becomes trapped, especially on clear, calm nights.
- Near Lakes and Rivers: Steam fog can be observed near these water bodies, particularly in the fall or early winter when the water is warmer than the air above.
