Anthropogenic moisture emission and its impact in an urban environment: A numerical study

Moisture emissions from anthropogenic sources vary significantly on both spatial and temporal scales, and accurately estimating moisture emissions in a particular region of interest is quite challenging. Most of the earlier studies on anthropogenic emission either focused on the sensible heat component or the combined effect of sensible heat component and moisture components but largely ignored the impact of the moisture component alone. The present investigation mainly emphasizes anthropogenic moisture emission and its role in the local urban environment. The objective of the present work is to incorporate anthropogenic moisture in model simulation in the urban environment and study its effect on relative humidity and rainfall. Moisture perturbation only increases the horizontal diffusion of moisture without any change in rainfall pattern, whereas moisture and sensible heat perturbation significantly lead to a shift in rainfall pattern.