Open AccessWinter Thermohaline Features along 10 degree N in the Bay of Bengal
Author(s) -
Dominic Ricky Fernandez,
Suganth Balaji,
T. Pradeep Kumar,
K. V. Sanilkumar
Publication year - 2019
Publication title -
defence science journal/defence science journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.198
H-Index - 32
eISSN - 0976-464X
pISSN - 0011-748X
DOI - 10.14429/dsj.69.14222
Subject(s) - bay , bengal , thermohaline circulation , oceanography , geology , anomaly (physics) , indian ocean , salinity , transect , channel (broadcasting) , degree (music) , temperature salinity diagrams , climatology , engineering , physics , acoustics , electrical engineering , condensed matter physics
To commemorate the contributions made by Indian Naval Ship (INS) Kistna during the first International Indian ocean expedition programme a scientific cruise was planned in the Bay of Bengal during November 2017 onboard INS Sagardhwani. The objective was to study the thermohaline properties along 10 °N in the Bay of Bengal and understand the sound channel characteristics in the region. A fresh water cap of ~20 m thickness is noticed in the top layers of the Bay of Bengal occupying the region extending from 83 °E – 93 °E. A prominent anti-cyclonic eddy was noticed around 10 °N centered between 90 °E and 93 °E, a negative sea level (west of 90 °E) co-exists with a positive sea level anomaly to its east along the observational tracks along 10 °N. The climatological temperature and salinity sections also shows the same features as observed along the transect. The study also sheds light on the deep sound channel characteristics along the 10 °N channel.