The changing relationship between Cholera and interannual climate variables in Kolkata over the past century.

ABSTRACT:

Background

In the Bengal Delta, research has shown that climate and cholera are linked. One demonstration of this is the relationship between interannual ocean-atmospheric oscillations such as the El Niño Southern Oscillation (ENSO) and the Indian Ocean Dipole (IOD). What remains unclear in the present literature is the nature of this relationship in the specific context of Kolkata, and how this relationship may have changed over time.

Results

In this study, we analyse the changing relationship between ENSO and IOD with cholera in Kolkata over recent (1999-2019) and historical (1897-1941) time intervals. Wavelet coherence analysis revealed significant non-stationary association at 2-4 year and 4-8 year periods between cholera and both interannual timeseries during both time

SUBMITTER: Shackleton D 

PROVIDER: S-EPMC10498578 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature