What term is used to describe the decrease in temperature contrast between two air masses?

Study for the ATPL Canadian Meteorology, Radio Aids to Navigation, and Flight Planning (SAMRA) exam. Use multiple-choice questions with explanations. Prepare effectively for your upcoming test!

The term that describes the decrease in temperature contrast between two air masses is known as frontolysis. This process occurs when the boundaries of an existing front weaken due to a reduction in the temperature gradient between the two air masses. As the temperature difference diminishes, the characteristics of the front fade, leading to less pronounced weather phenomena typically associated with strong frontal boundaries.

Frontogenesis, in contrast, refers to the formation or strengthening of a front, where the temperature contrast becomes more significant and can lead to increased weather activity. Air Mass Integration is not a commonly used meteorological term and does not specifically refer to the interaction between air masses. Thermal Regulation is a more general concept related to temperature control and does not directly relate to changes in the characteristics of air masses or fronts.

Understanding frontolysis is essential in meteorology, as it indicates stabilizing atmospheric conditions, which can lead to clearer weather following a period of significant frontal activity.

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