Causes of cloud formation

Cloud formation is a physical process of water vapour condensation in the atmosphere, which involves a variety of complex meteorological factors.It is generally the result of a head-to-head confrontation between the clear air forces led by dry and cold air currents and the cloud army led by warm and humid air currents, which meet narrowly at high altitude.A dry cold airflow is an airflow in the near-surface layer in which the air temperature is lower and the humidity is less.This type of airflow usually comes from higher latitudes and is characterised by dryness and coldness.Under the influence of dry and cold airflow, the sky is clear and less cloudy.Warm humid airflow is a warm, moist airflow from lower latitudes.This airflow contains a large amount of water vapour, and when it rises to high altitudes, the water vapour tends to condense into cloud droplets and form clouds.At high altitudes, the dry and cold airflow meets the warm and humid airflow, and the two face each other head-on.Due to the higher density of the dry and cold air, the warm and humid air is forced to rise, and as the temperature drops during the ascent, the water vapour tends to condense into cloud droplets.At this point, clouds form at the junction of the dry and cold airflow and the warm and humid airflow.