• HOME
  • About NIO
  • Research
  • Consultancy
  • Education
  • News & Events
  • Tenders
  • Vacancies
  • Outreach
  • Contact Us
  • Projects
    • Institute
    • Grant-in-aid
  • Publications
    • Articles
    • Monographs
    • Institutional Repository
  • Patents /Technology
    • Patents
    • Anti-malerial Compound
    • Anti HIV Agent
    • AUV Technology
    • Decolourization & Detoxification
    • Seafloor Classification
  • Researchers
  • Collaborations
    • National
    • International
  • Data Repositories
    • Cruise Reports and Data
    • Chlorophyll climatology data
    • Real-time Data
    • Time-series Data
    • Sea-floor Data
    • Biodiversity data
    • Bioinformatics
    • Mangroveindia
    • bioSearch
Seafloor Classification



 
Why Seafloor Classification?
The ocean floor acts as interface between the oceanic lithosphere & hydrosphere, and the interaction (i.e., exchange of mass and energy) zone for the processes are provided by the boundary layers.
Sand dunes off Tarapur, Mumbai Seafloor pockmark off Goa
 
How can we explore the Seafloor?  
  • Application of multi-beam and single-beam echo-sounder.
  • In India NIO installed first deep water multi-beam system onboard ORV Sagar Kanya (1990).
  • Multi-beam system also acquires backscatter data, which provides fine scale parameters of the spatial & temporal seafloor processes.


 How we get normalized seafloor backscatter images?
Backscatter Image
Publications based on seafloor classification technology
  • Chakraborty et al. IEEE TGARS, 2000, 38 (5), pp2419-2422.
  • Chakraborty et al. IEEE TGARS, 2001, 39(12), pp2722-2725.
  • Chakraborty et al. Geo-Marine Letters,2001,20(3), pp174-181.
  • Chakraborty,LNAI 2275,2002, pp. 245-250.
  • Chakraborty et al. Marine Geodesy, 2002, special issue 25 (1-2), pp.19-26.
  • Chakraborty et al. IEEE JOE,2003,28(1), PP. 121-128.
  • Chakraborty & Kodagali, Geo-Mar. Letters, 2004, 24 (1),pp.
  • Chakraborty et al. IEEE GRSL, 2004,1 (3), pp. 196-200.
  • Chakraborty et. al, ICES J. Mar. Sci. 2007, 64, 551-558.
  • De and Chakraborty, IEEE GRSL. 2009, 06, 743-747.
Use of echo-waveform for seafloor classification

Important project where seafloor characterization & classification Technology is used
  • Exclusive Economic Zone (EEZ) multi-beam mapping (MoES).
  • Development of IT based technique for Seafloor Classification (MIT).
  • Polymetallic nodule (survey & exploration) (MoES).
  • Acoustic technique for seafloor habitat studies (NIOT, MoES).
 Response from industry (International) to license NIO’s Patents
  • Received offer from USA / European (Denmark) firm (m/s Reson Inc.). Letter dated15 August 2006.
  • Received offer from USA / European (Germany) firm (m/s L3 communications, Elak Nautik). Letter dated 10 April 2004.
Copyrighted Software
  • Processing Backscatter Signal “PROBASI” (CR23/99).
  • Interpreting Backsscatter Signal “INBASI” (CR24/99).
  • PROBASI-II (communicated).
Patents
  • U.S. Patent No. US 6,549,853 B2 on multi-beam Backscatter data processing (chakraborty,
  • Kodagali,V.,2003, Method for determining seafloor roughness using multi-beam echo- sounder.
  • U.S. Patent No. US 6763303 B2 on seafloor classification. (Chakraborty, Kodagali, V., Baracho,J., Joseph, A.,2004, A system for seafloor classification).
Awards
  • CSIR Young Scientist Award 1992.
  • CSIR Technology Award 2004.
  • Silver Medal in Underwater Acoustic 2004.
  • National Mineral Award 2006.
  • ISCA Poster Prize 2006.
 


NIO, Dona Paula-Goa, 403 004, India. EPABX:+91(0)832-2450450; Fax:+91(0)832-2450602, -2450603; e-mail:ocean@nio.org     Sitemap