DRS at CSIR-National Institute of Oceanography: Recent submissions
Now showing items 6621-6640 of 9429
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Sulfur and strontium isotopic compositions of carbonate and evaporite rocks from the late Neoproterozoic–early Cambrian Bilara Group (Nagaur-Ganganagar Basin, India): Constraints on intrabasinal correlation and global sulfur cycle
(Elsevier, 2006)Sulfur and strontium isotope ratios are presented for carbonate and evaporite rocks from the late Neoproterozoic and early Cambrian Bilara and Hanseran Evaporite Groups, NW India. The sulfur isotopic compositions of trace ... -
Seaweed: Promising plant of the millennium
(Indian Science News Association, 2005)Seaweeds, one of the important marine living resources could be termed as the futuristically promising plants. These plants have been a source of food, feed and medicine in the orient as well as in the west, since ancient ... -
Intermittent swarming of copepods in Versova mangrove, Mumbai
(ENVIS Centre, 2003)Some zooplankton taxa like copepods, ostracods, ctenophores and medusae exhibit dense aggregations in a wide range of marine environment. Copepods have been frequently reported to occur in swarms from coral and mangrove ... -
'Saurashtra stone anchors' (Ring-stones) from Dwarka and Somnath, west coast of India
(Indian Archaeological Society, 2002)Last two decades of marine archaeological research along the Indian coast has brought to light a large number of stone anchors of different types and sizes, indicating that the Indian coast has witnessed brisk maritime ... -
Eco-geomorphological zonation of the Bangaram reef, Lakshadweep
(The Indian Society of Remote Sensing, 2005)Coral reefs, which are known for rich biological diversity and productivity, are being threatened throughout the world by various natural and anthropogenic activities. The present study concentrates on establishing methodology ... -
Assessment of coastal wetland resources of central west coast, India, using LANDSAT data
(The Indian Society of Remote Sensing, 2001)The part of central west coast (Maharashtra and Goa) of India has been classified and quantified for coastal wetlands using LANDSAT data of 1985-86. The classification accuracy of the maps and area estimates achieved was ... -
Retrieval of chlorphyll from the sea-leaving radiance in the Arbaian Sea
(The Indian Society of Remote Sensing, 2001)Error estimates in chlorophyll retrieval in the sea from satellite data have always been higher compared to the errors in retrieval of sea surface temperature or wind speed from satellite data. This is due to the higher ... -
Wave directional spectrum from SAR imagery
(The Indian Society of Remote Sensing, 2000)Gaussian smoothed SAR image spectra have been evaluated from 512 x 512 pixel sub- scenes of image mode ERS-1 SAR scenes off Goa, Visakhapatnam, Paradeep and Portugal. The two recently acquired scenes off Portugal showed ... -
A Late Harappan Port at Kindar Kheda on the Saurashtra coast
(Indian Society for Prehistoric and Quaternary Studies, 2005)During onshore exploration along the Saurashtra coast a Protohistoric site at Kindar Kheda was visited and a large number of artefacts were observed within agricultural lands. The potsherds noted here point to this ... -
New light on the maritime archaeology of Porbandar, Saurashtra Coast, Gujarat
(Indian Society for Prehistoric and Quaternary Studies, 2004)Onshore explorations around Porbandar on the Saurashtra coast, Gujarat, India brought to light new evidence on ancient settlements dating back to the late Harappan period. The ancient site known as Kotada is situated on ... -
Onshore excavation at Bet Dwarka Island, in the Gulf of Kachchh, Gujarat
(Indian Society for Prehistoric and Quaternary Studies, 2003)Several ancient habitational sites were discovered in the coastal area of Bet Dwarka island during the last two decades of marine archaeological exploration. A large amount of protohistoric and historical pottery was ... -
Recent underwater explorations at Dwarka and surroundings of Okha Mandal
(Indian Society for Prehistoric and Quaternary Studies, 2000)Onshore explorations were carried out in Dwarka, Bet Dwarka, Aramda, Kachhigadhi, Okhamadi and Amrapura area. At Dwarka about 1.6 km2 area was explored between water depths of 1.5 to 20 m off Samudranarayan temple. Diving ... -
Methane hydrates in marine sediments - Untapped source of energy
(2001)Existing largely in the form of a crystalline, frozen mixture of methane and water under low temperature and high pressure, methane hydrates are now looked upon as an untapped source of hydrocarbon energy) Methane production ... -
The biggest stone anchors (Indo-Arab type) from Mithi Virdi, Bhavnagar, west coast of India
(2005)A coastal archaeological exploration in Talaja taluka of Bhavnagar district, Gujarat, brought to light 5 grapnel stone anchors in an agriculture land. The site and these anchors are known as Bhima ka Khatiya ('Cot of Bhima', ... -
Microbial exopolysaccharides: Effect on corrosion and partial chemical characterization
(Indian Institute of Science, 1999)Test panels of mild steel were deployed in the surface waters of the Dona Paula Bay over a period of 28 days. Biofilm material on mild steel panels was analyzed for biofilm biomass las organic carbon), exopolysaccharide ... -
Characterizing biogenous sediments using multibeam echosounder backscatter data - Estimating power law parameter utilizing various models
(The Acoustical Society of India, 2001)In this paper, Helmholtz-Kirchhoff (H-K) roughness model is employed to characterize seafloor sediment and roughness parameters from the eastern sector of the Southern Oceans The multibeam- Hydroswcep system's angular-backscatter ... -
Monthly mean sea level variations at Cochin, southwest coast of India
(International Scientific Publications, 2001)This study focuses on the variations in monthly mean sea level at Cochin, southwest coast of India, over a period of 50 years (1949-1998). Analysis have shown that there are strong seasonal variations in the monthly mean ... -
Spatial zonation of zooplankton in the northwestern Arabian Sea: A multivariate approach
(International Scientific Publications, 2000)Latitudinal variation in abundance, diversity, dominance pattern and zonation of the major groups of zooplankton was studied n the coastal waters of northwestern Arabian Sea, between 25°44' N and 10°44' N. Maxwell Boltzmann ... -
Surge ammonium uptake in macroalgae from a coral atoll
(Elsevier, 2006)Surge (non-linear) uptake of ammonium, measured by incorporation of 15N, was investigated in three species of macroalgae (Ulva lactuca Linnaeus (Chlorophyta), Soliera robusta (Greville) Kylin (Rhodophyta) and Dictyota ... -
Application of remote sensing and GIS in the analysis of environment of Bay of Bengal
(2006)The Bay of Bengal is a northern extended arm of the Indian Ocean, situated in eastern part between equator and 220N latitude and 800E and 1000E longitude. It is a tropical basin, landlocked in the north by the landmasses ...