Publications

Golder, MR; Shuva, MSH; Rouf, MA; Uddin, MM; Bristy, SK; Bir, J (2021). Chlorophyll-a, SST and particulate organic carbon in response to the cyclone Amphan in the Bay of Bengal. JOURNAL OF EARTH SYSTEM SCIENCE, 130(3), 157.

Abstract
This study aims to explore the variation of Chlorophyll-a (Chl-a), particulate organic carbon (POC) and sea surface temperature (SST) before (pre-cyclone) and after (post-cyclone) the cyclone Amphan in the Bay of Bengal (BoB). Moderate Resolution Imaging Spectroradiometer (MODIS) Aqua satellite level-3 data were used to assess the variability of the mentioned parameters. Chl-a concentration was observed to be significantly (t = -3.16, df approximate to 18.03, p = 0.005) high (peak 2.30 mg/m(3)) during the post-cyclone period compared to the pre-cyclone (0.19 mg/m(3)). Similarly, POC concentration was significantly (t = 3.41, df approximate to 18.06, p = 0.003) high (peak 464 mg/m(3)) during the post-cyclone compared to the pre-cyclone (59.40 mg/m(3)). Comparatively, high SST was observed during the pre-cyclone period and decreases drastically with a significant difference (t = 14, df = 33, p = 1.951e-15) after the post-cyclone period. The results indicated an increase in Chl-a (502%) and POC (240%) with a positive anomaly of 0.55 and 94.11 mg/m(3), but a decrease in SST (8.52%) with a negative anomaly of 2.7 degrees C in the BoB.

DOI:
10.1007/s12040-021-01668-1

ISSN:
2347-4327