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Heterogeneous microbial oceanographic environments: Application of GIS technology in deciphering of microenvironment scenarios off the central west coast of India

Raghavan, BR and Nayak, SR and Shylini, SK and Deepthi, T and Sadatipour, SMT and Chauhan, P and Srinivasakumar, T and Lotliker, A and Venkat Reddy, D and Kumaraswami, M and Ashwini, S and Nisaj, M (2011) Heterogeneous microbial oceanographic environments: Application of GIS technology in deciphering of microenvironment scenarios off the central west coast of India. International Journal of Earth Sciences and Engineering, 4 (3). pp. 395-410.

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Abstract

In the vast oceanic microbial environment of 2468.83km 2, GIS modeling techniques involving sixty query steps, enabled the deciphering of Microenvironments as low as 1.19km 2 to 38.6 km 2 for the summer of 2004 and in case of summer 2005 where 84 query steps were involved to decipher Microenvironments of 10.55km 2 to 25.94km 2. Thirtythree sampling stations were established between Betul to Ankola off the central west coast of India accounting for a spatial coverage of 2468.83km 2. GIS query-modeling investigation was carried out using spatial layers of depth, optical parameters (k-Irradiance attenuation Coefficient, c-Beam attenuation coefficient), sediment size parameters (Sediment Mean Size and Sediment Sorting) and Benthic Foraminifera Suborders (Rotaliina, Textulariina, Miliolina, Lagenina). Foraminifera have been used as a surrogate parameter. However, any microbial parameter could proxy for foraminifers providing for the numerical deciphering of microenvironments. This is suggestive of the assimilation of GIS technology for a better appreciation of microbial oceanography.

Item Type: Article
Additional Information: Copyright of this article belongs to CAFET-INNOVA TECHNICAL SOCIETY.
Subjects: Oceanography > oceanography
Divisions: Mangalore Univ - Marine Geology and Geophysics
Depositing User: INCOIS Library
Date Deposited: 08 Dec 2013 09:59
Last Modified: 25 Jun 2014 04:45
URI: http://moeseprints.incois.gov.in/id/eprint/177

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