The zone that separates two air masses when the denser and cooler mass is replacing the warmer mass as it advances describes the cold front. It is a boundary line that is between cold air and a warm air mass where the cold air pushes from under and behind as it advances.
There was no "front" in the Cold War.
warmer than a cold front and colder than a cold front
A stationary front
i have no idea ocean
A cold front.
a cold front moves up rapidly.
An Arctic cold front.
An advancing cold front.
This is would be a cold front.
It is called a lower pressure front.
When a cold front overtakes a warm front, it is known as an occluded front. This occurs when the cold air behind the cold front catches up with the warm air ahead of the warm front, forcing the warm air upward.
A cold front normally moves at twice the speed of a warm front. An occluded front forms when a cold front catches up with a warm front. Occluded fronts are of two types:1. Cold occlusion : If the airmass of the advancing cold front is colder than the cool airmass of the warm front, the advancing cold front undercuts and lifts both the warm and cool airmass of the warm front. The weather is initially warm front type but during the passage of front, showery weather of cold front occurs. This occlusion is common in summer. 2. Warm occlusion : When the airmass behind the advancing cold front is less colder (cool) than the cold airmass of the warm front ahead, the advancing cold front overrides the warm front ahead. The weather in such a case is similar to that of warm front. This type of occlusion occurs in winters and is less common.