Study of rainfall pattern near industrial region by using an ordinate pattern-based approach
Abstract
Angul district in Odisha houses many industries that release flue gases from chimneys and water vapour from their cooling towers within the planetary boundary layer. Under particular environmental conditions, these flue gases act as nucleating sites for the water vapour to condense and form clouds at a greater height. Further condensation of water vapour may result in the formation of induced rainfall. Previous studies have shown some variation in the pattern of induced precipitation as compared to "natural" rainfall. In the present study, an ordinate pattern-based approach is used to study and contrast the rainfall pattern in and around the Angul region. Daily rainfall precipitation data at 0.25◦ × 0.25◦ resolution from Tropical Rainfall Measuring Mission (TRMM)'s data products from 2000 to 2017 has been considered for this analysis. This data is divided into two groups; the first set of data centered on Angul (CE), and the second set is away from the Angul site (NE, NW, SE and SW). The ordinal pattern of both datasets is found and compared systematically to study the similarities and differences in rainfall patterns. Results show that the Angul region's rainfall pattern differs from the surrounding areas, indicating in-homogeneity in rainfall pattern compared to the climatic effect. The optimal score is calculated as per the daily rainfall of CE region with respect to NE, NW, SE, and SW for the monsoon period (JJAS), summer (MAM), and winter (DJF). JJAS and MAM periods have shown almost similar optimal score trends except for sudden peaks in MAM. DJF shows a distinguishable trend in optimal score in NE region compared to CE region.
- Publication:
-
AGU Fall Meeting Abstracts
- Pub Date:
- December 2022
- Bibcode:
- 2022AGUFM.H34E..03M