A marine layer is an air mass that develops over the surface of a large body of water, such as an ocean or large lake, in the presence of a temperature inversion. The inversion itself is usually initiated by the cooling effect caused when cold water on the surface of the ocean interacts with a comparatively warm air mass.

In meteorology, an inversion (or temperature inversion) is a phenomenon in which a layer of warmer air overlies cooler air. Normally, air temperature gradually decreases as altitude increases, but this relationship is reversed in an inversion.

2023年5月2日 · Instead, the air masses remain layered in what is called a temperature inversion. The air below the inversion is the marine layer, which can cool to the point at which clouds or fog form low to the surface.

As seen in the figure above, the inversion base limits the vertical extent of air mixing near the surface. This type of inversion is often called a subsidence inversion or a marine air inversion.

Temperature inversion produced when cold marine air underlies warmer air. Used interchangably with Radiational Inversion; a temperature inversion that develops during the night as a result of radiational cooling of the surface.

2004年8月26日 · The first diagram (Fig. 1) shows what is known as a Marine Inversion. This occurs when cool, moist air that originates over the ocean is blown onto land by our prevailing westerly winds. The cool temperature of this air makes it more dense, so it readily flows underneath the warmer, drier air that is present over the basin.

2020年8月29日 · The air at higher altitudes becomes warmer than at lower altitudes, producing a temperature inversion. This type of temperature inversion is called subsidence inversion.

The stratus clouds observed in the satellite image lie just below the trade wind inversion. The stratus clouds form when the air approaches saturation due to mixing of the dry subsiding air with the moist air near the ocean surface.