000			02148cam a2200205 4500
100	1		_aDAS Arnab
245			_aUnderwater radiated noise: _ba new perspective in the Indian Ocean region/ _cArnab Das
260			_a2019
520			_aUnderwater Radiated Noise (URN) is an interesting research area both for military as well as non-military applications. The proliferation of submarines particularly by new entrants in the developing world requires far better URN management to effectively achieve the desired acoustic stealth. The ever increasing merchant marine fleet is accompanied with high levels of low frequency ambient noise that interferes with the marine mammal perception of their environment leading to severe Acoustic Habitat Degradation. The Indian Ocean Region (IOR) has particularly become strategically relevant in the twenty-first century with larger presence of warships and merchant marines from across the globe. URN measurement and analysis requires deep understanding of the signal characteristics and fluctuations in the tropical littorals of the IOR. The entire URN management issue needs to be looked at from a comprehensive perspective including policy, technology & innovation and human resource development. URN management requires massive infrastructure and resource investment and given the socio-economic priorities in the region, such resources are hard to get for any long-term strategic vision. The paper attempts to present the fundamental aspects of URN and then discuss the challenges and opportunities in the IOR to ensure safe, secure, sustainable growth for all in the region.
650			_aUNDERWATER RADIATED NOISE (URN)
650			_aINDIAN OCEAN REGION (IOR)
650			_aTROPICAL LITTORAL WATERS
650			_aACOUSTIC HABITAT DEGRADATION
650			_aACOUSTIC STEALTH
650			_aMEASUREMENT AND ANALYSIS
773			_aMaritime Affairs: _gJournal of the National Maritime Foundation of India : _gVol 15, No. 1, 2019, pp. 65-77
598			_aMARITIME, INDIA
856			_uhttps://www.tandfonline.com/doi/full/10.1080/09733159.2019.1625225 _zClick here for full text
945			_i67819.1001 _rY _sY
999			_c41810 _d41810