Precipitation isotopes and monsoon dynamics in the core monsoon zone of India.

ABSTRACT: This study examines the impact of monsoon systems on the isotopic composition of rainfall in India's core monsoon zone (CMZ). The CMZ is influenced by the monsoon trough and the low-pressure systems that cause considerable rain. However, there is a lack of systematic studies on how these monsoon systems affect the isotopic composition of precipitation in the CMZ. A six-year precipitation isotopic record shows that the low-pressure systems, through their origin, trajectory, and intensity, significantly impact the isotopic values of rainfall. These systems and convective activities typically produce depleted isotopic values. An examination of the monthly composited LPS (low-pressure system) intensity and its corresponding precipitation isotopic values revealed a noteworthy inverse relation.

SUBMITTER: Chakraborty S 

PROVIDER: S-EPMC11862113 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature