Ocean Monitoring Model Using Acoustic by Integrated Autonomous Underwater Vehicle (IAUV)

A new model is tried to develop to resolve the existing limitation of comprehensive Ocean monitoring both in methods and technological knowhow. The main target of this modelling is to develop a sustainable, easy install able, cost efficient, faster data collection, wide range covering and easy interpretable techniques. The model is developed by integrated observing system through linking existing instruments and techniques. New dimension of ocean monitoring will be explored through using this model named Integrated Acoustic Underwater Autonomous Vehicle (IAUV). This IAUV will be developed through combination of existing Ocean monitoring instruments (e.g.; AUV, Gliders, mooring and boys). Using a number of active acoustic mobile and fixed platform it will be able to monitor or measure in-situ data transmitting acoustical pulse through Deep Sound Channel (SOFAR Channel) avoiding sound attenuation and maintaining lowest transmission and absorption loss. The IAUV will be able to transmit/receive data through acoustic pulse within 500 to 1000 km ranges and for ensuring security, it will deliver data to the base station, without using satellite. This will measure Oceanographic (T, S, D, pH, TDS, Eddies, Tide, wave, Current speed with direction, etc.), Biological (Chl., Nutrient, fish school, etc.), Meteorological data, as well as will provide bathymetric, early earthquake (Tsunami) warning, seismic, gravity data and also Chemical analysis data of any depth. The limitation of continuous energy supply can be solved by using micro-nuclear reactor plant (m-NRP) & sufficient battery storage. It will avoid any obstacles by self-guiding principles. Though primarily have some limitations, it may solve in near future. This newly developed integrated underwater autonomous vehicle will be the versatile tool for ocean monitoring as well as maritime security.

Keywords: Integrated; IAUV; Sustainable; Ocean monitoring; Maritime security