Sound Velocity Properties due to Salinity, Temperature and Depth of The Whole Banda Sea: A Marvelous Thing of The ~318 Meter Surface of Deep Sea

Abstract

Hendry I Elim, Pieldrie Nanlohy, Nasrin Silawane, I Wayan Nurjaya and Agus S Atmadipoera

A marvelous thing of the ~300 meter surface of a deep sea in an interesting area like Banda sea surrounding by 11 small islands in Banda prefecture of Maluku province was investigated based on sound velocity properties due to salinity, temperature and depth of the whole Banda sea using INDESO data from 3rd March 2007 to 18th March 2014 or about 7 years plus 15 days (715.t) with the depth of the whole data reaching as deep as 318 meter from the Banda sea surface. From 9 different areas that we devided based on the whole Banda sea area, the east part of Banda sea was very attractive areas called as areas of no. 3, no. 6 and no. 9 due to their economic potential exploration, respectively. According to our ongoing works during the 715.t, we discovered that the speed velocity of sound propagating (vs) in the sea was mainly temperature dependent in 3 different depths called as (1) Mixed layer (ML), (2) Thermocline layer (TL), and (3) Below Thermocline layer (BTL) on top 318 m surface of the deep Banda sea. The detail of the influences of North West Monsoon (NWM) and South East Monsoon (SEM) related to the vs is discussed. Our results suggest that the east part of the whole Banda sea produced faster vs than that in the others 6 areas. While when the NWM, there was a shift of the vs especially in TL from the east to the center of Banda sea that made Seram and Buru sea islands warm. In addition, in the influence area due to NWM of BTL, the vs is faster in the south area of Banda sea.

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