Air-Sea interactions

We study atmospheric features and their effects on the ocean surface and upper ocean layer. Ocean heat can be a major contributor to multiscale atmospheric events. Data is mostly obtained from buoys, floats, radars and satellites. This helps us form a broad picture of the natural processes like cyclones, monsoon depressions and other major atmospheric oscillations.

Comparative Analysis of SCATSat-1 Gridded Winds With Buoys, ASCAT, and ECMWF Winds in the Bay of Bengal

This paper presents the first results on comparisons of Scatterometer Satellite-1 (SCATSat-1) derived wind datasets with the in situ, reanalysis as well as another operational scatterometer derived winds in the Bay of Bengal during the period November 2016-March 2017. This paper also reports the capability of SCATSat-1 to capture three tropical cyclones Kyant, Vardah, and Mora during the period of study with the highest WS of 23.5 m/s.

S. Mandal, S. Sil, A. Shee, D. Swain and P. C. Pandey, "Comparative Analysis of SCATSat-1 Gridded Winds With Buoys, ASCAT, and ECMWF Winds in the Bay of Bengal," in IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, vol. 11, no. 3, pp. 845-851, March 2018


The northern Bay of Bengal is well known for its fresh ocean surface due to low salinity input from rivers. This study investigates the hydrography from the temperature and salinity profiles obtained from an Argo float, which drifted for 44 months in the northern Bay of Bengal.

Shee, A., Sil, S., Gangopadhyay, A., Gawarkiewicz, G., & Ravichandran, M. (2019). Seasonal Evolution of Oceanic Upper Layer Processes in the Northern Bay of Bengal following a Single Argo Float. Geophysical Research Letters

In this study, the upper ocean and subsurface variability during the different phases of the cyclonic storm ROANU along the western Bay of Bengal (BoB) in May 2016 are investigated by using the moored buoys, Argos, HF radar and satellite datasets in the proximity of the cyclone track.

Mandal, S., Sil, S., Shee, A. et al. Upper Ocean and Subsurface Variability in the Bay of Bengal During Cyclone ROANU: A Synergistic View Using In Situ and Satellite Observations. Pure Appl. Geophys. 175, 4605–4624 (2018).