DRS at CSIR-National Institute of Oceanography: Recent submissions
Now showing items 2891-2910 of 9513
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An autonomous underwater vehicle "Maya", for monitoring coastal waters, estuaries, rivers and dams
(Indian National Centre for Ocean Information Services (INCOIS), 2012)This article demonstrates the use of Maya, Autonomous Underwater Vehicle (AUV) for monitoring coastal waters, estuaries, rivers and dams. Maya is a mono hull structure with detachable nose and tail cones. The nose cone is ... -
Recent studies on wind seas and swells in the Indian Ocean: A review
(SAGE Publications, 2013)Winds and waves measured at a few locations along the west coast of India were analysed to study the wave characteristics in the deep as well as near shore regions during different seasons The potential generation of swells ... -
Signatures of Indian Ocean dipole and El Nino-Southern Oscillation events in sea level variations in the Bay of Bengal
(American Geophysical Union, 2012)We investigate the impact of the Indian Ocean Dipole (IOD) and El Nino and the Southern Oscillation (ENSO) on sea level variations in the North Indian Ocean during 1957-2008. Using tide-gauge and altimeter data, we show ... -
Upper ocean variability in the Bay of Bengal during the tropical cyclones Nargis and Laila
(Elsevier, 2012)Upper ocean variability at different stages in the evolution of the tropical cyclones Nargis and Laila is evaluated over the Bay of Bengal (BoB) during May 2008 and May 2010 respectively. Nargis initially developed on 24 ... -
Some ecological aspects and potential threats to an intertidal gastropod, Umbonium vestiarium
(Triveni Enterprises, 2012)Kalbadevi Bay in Ratgnairi has been identified as potential site for placer mining along the west coast of India. Since, Umbonium vestiarium is a keystone species of the region; study on some ecological aspect was carried ... -
Petrological Characteristics and Genesis of the Central Indian Ocean Basin Basalts
(Geological Society of China, 2012)The Central Indian Ocean Basin (CIOB) basalts are plagioclase-rich, while olivine and pyroxene are very few. The analyses of 41 samples reveal high FeO sup(T) (approx. 10-18 wt percent) and TiO sub(2) (approx. 1.4-2.7 wt ... -
Linkage between seasonal insolation gradient in the tropical northern hemisphere and the sea surface salinity of the equatorial Indian Ocean during the last glacial period
(Geological Society of China, 2012)Paired stable oxygen isotope and Mg/Ca analyses in calcite tests of the mixed-layer-dwelling planktic foraminifer Globigerinoides ruber has been used to reconstruct equatorial Indian Ocean delta sup(18)O of seawater (delta ... -
Wealth of bioactive molecules from marine bacteria and their applications
(2012)By the term, "Bioactive molecules" we generally mean a range of compounds produced by living fauna and flora the effect of which tend to improve the status of man�s health, wealth and overall welfare These molecules could ... -
Distribution of intertidal phytobenthos of polluted and comparatively unpolluted regions along Mumbai
(University of Mumbai, 2012)The dynamics of microphytobenthos may be influenced by water pollution which can be through anthropogenic discharges including domestic waste water and industrial effluents. The pollutants in overlying water settle at the ... -
Nature and sources of suspended particulate organic matter in a tropical estuary during the monsoon and pre-monsoon: Insights from stable isotopes (delta 13C POC, delta 15 N TPN) and carbohydrate signature compounds
(Elsevier, 2012)Mandovi estuary, on the west coast of India, behaves like a fresh water system during the monsoon (June to September), and as a marine system during the pre-monsoon (October to May). The effect of these contrasting conditions ... -
Total petroleum hydrocarbon in the tissues of some commercially important fishes of the Bay of Bengal
(Elsevier, 2012)The level of total petroleum hydrocarbon (TPH) in 27 commercially important fish, crustaceans and cephalopods are reported from Orissa coast, Bay of Bengal to provide the baseline data for oil contamination in marine biota. ... -
A new species of the genus Acarothrix (Acari: Halacaridae) from Brunei Darussalam and India
(Station Biologique de Roscoff, 2012)Acarothrix grandocularis sp. nov. is described from specimens collected in Brunei Darussalam and India. The new species is characterized by the presence of dorsal seta 1 on the posterior part of anterior dorsal plate, a ... -
Tracing the Paleo sulfate-methane transition zones and H2S seepage events in marine sediments: An application of C-S-Mo systematics
(American Geophysical Union, 2012)Microbially mediated anaerobic oxidation of methane (AOM) coupled with sulfate consumption within the sulfate methane transition zone (SMTZ) in marine sediments is a widely recorded biogeochemical reaction and has profound ... -
Online Stable Isotope Analysis of Dissolved Organic Carbon Size Classes Using Size Exclusion Chromatography Coupled to an Isotope Ratio Mass Spectrometer
(American Chemical Society, 2012)Stable isotopic content of dissolved organic carbon (delta sup(13)C-DOC) provides valuable information on its origin and fate. In an attempt to get additional insights into DOC cycling, we developed a method for delta ... -
Fractionation and fragmentation of glass cosmic spherules during atmospheric entry
(Elsevier, 2012)Glass cosmic spherules are a sub-type of S-type cosmic spherules that are almost at the end phase of fractionation and volatilization during atmospheric entry. A focused investigation of 36 glass spherules out of several ... -
Study of aerosol optical thickness using MODIS satellite data and sun photometer in a part of West coast of India
(Cafet-Innova Technical Society, 2012)The knowledge of aerosol optical properties plays an important role in estimation of the direct aerosol forcing. The aerosol optical thickness obtained from MODIS and Microtops II Sunphotometer is described. The data has ... -
Seamounts - characteristics, formation, mineral deposits and biodiversity
(Biblioteca de Geologia (UB-CSIC), 2012)Seamounts represent crust-mantle activities and are areas of petrological deviations, biodiversity, seismicity and hydrothermal events. An estimated approx. 50 million tons/year of basalts are required to produce seamounts ... -
Primary productivity and nitrogen fixation by Trichodesmium spp. in the Arabian Sea
(Elsevier, 2012)Trichodesmium was studied with the purpose of understanding its distribution, organic production and nitrogen fixation in the Arabian Sea. Out of the 143 stations sampled, a total of 93 stations showed the presence of ... -
Geochemical and geological constraints on the composition of marine sediment pore fluid: Possible link to gas hydrate deposits
(Elsevier, 2012)Pore water sulfate consumption in marine sediments is controlled by microbially driven sulfate reduction via organo-clastic and methane oxidation processes. In this work, we present sediment pore fluid compositions of 10 ... -
Extreme sea-level events in coastal regions
(Current Science Association, 2012)Underlines the need for documentation of the adaptation practices from previous extreme events for handling future exigencies in the coastal regions.

