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Use of marine robot`MAYA` for monitoring the Zuari and Mandovi esturine systems

DRS at CSIR-National Institute of Oceanography

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Title Use of marine robot`MAYA` for monitoring the Zuari and Mandovi esturine systems
 
Creator Mascarenhas, A.A.M.Q.
Afzulpurkar, S.
Navelkar, G.S.
Maurya, P.K.
Fernandes, L.
Desa, E.S.
Madhan, R.
Shenoy, D.
Kurian, S.
Naik, H.
Nagvekar, S.
Vimalakumari, D.
Dalvi, H.S.
Manoharan, V.
deAraujo, B.A.
Lamani, V.
Naik, N.
Mohan, N.
Dias, Albertina
Dias, A.
 
Subject OCEANOGRAPHIC SUPPORT SERVICES
CHEMISTRY AND BIOGEOCHEMISTRY
CHEMISTRY AND BIOGEOCHEMISTRY
OCEANOGRAPHIC SUPPORT SERVICES
 
Description Autonomous Surface Vehicles (ASVs) are gaining popularity among oceanographic, meteorological and defense research organizations (Motwani, 2012). The Autonomous Underwater Vehicle, MAYA designed and built at CSIR-NIO (Desa, E et al., 2007) was used to study the spatial distribution of biogeochemical properties in the Zuari and Mandovi Estuarine systems during the onset of tides. MAYA was repurposed as an ASV to tightly follow a path (Maurya, P et al., 2008) along the mid-section of the rivers and water properties ie. Temperature, Salinity, Dissolved Oxygen (DO), Fluorescence and Turbidity were mapped. Surface water samples were simultaneously collected along the path at discrete points and analyzed using conventional laboratory methods (Autosal for salinity, Winkler titration for DO, and fluorometry for chlorophyll a) for validation purposes. Salinity and DO values from MAYA sensors and lab analysis agreed within ~1% and ~2% respectively. The Zuari section was about 34 kms in length and was covered in 2 days during February 2015. Salinity along the track varied from 33.79 to 10.25 PSU, indicating that the measurements were made in different sections of the river. The Mandovi section was about 21 kms in length and was covered in a day during June 2015. In both cases MAYA was aided by the upstream tidal currents and cruised at an average velocity of ~1.5 m/sec. Autonomous Vehicles such as MAYA are essential in providing better spatial and temporal coverage of biogeochemical data
 
Date 2016-01-08T06:39:44Z
2016-01-08T06:39:44Z
2015
 
Type Conference Article
 
Identifier Dynamics of the Indian Ocean: Perspective and Retrospective: Proceedings of International Symposium on Indian Ocean. (Int. Symp. Indian Ocean; Goa; India; Nov. 30th-Dec. 4th, 2015). ; 2015; 8pp
http://drs.nio.org/drs/handle/2264/4885
 
Language en
 
Rights Copyright [2015]
 
Publisher National Institute of Oceanography, Goa