DRS at CSIR-National Institute of Oceanography: Recent submissions
Now showing items 6711-6730 of 9513
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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 ... -
Environmental studies of the Arabian Sea using remote sensing, GIS and GPS techniques
(2006)The Arabian Sea, situated in the western part of the northern Indian Ocean is a tropical basin. It is bounded on the east by the Indian peninsula, on the north by Baluchistan and Sindh provinces of Pakistan and on the west ... -
Exploration of a Portuguese shipwreck in Goa waters, western coast of India
(The Australasian Institute for Maritime Archaeology, 2006)Maritime archaeological explorations have been initiated in Goa waters since 1997 for locating port installations and shipwrecks both in coastal waters and riverbanks. Exploration off Sunchi reef in 3 to 6 m water depth ... -
Water masses in the Gulf of Aden
(The Oceanographic Society of Japan, 2007)Hydrographic data collected from Gulf of Aden since 1920 have been compiled to identify and refine the definitions of water masses in the Gulf of Aden (GA) and to describe their spatio-temporal variability. Four water ... -
Contribution of water soluble organic nitrogen to total nitrogen in marine aerosols over the East China Sea and western North Pacific
(Elsevier, 2006)This paper presents information on concentrations, size distributions, geographical distributions and sources of water-soluble organic nitrogen (ONws) in aerosols over the East China Sea and western North Pacific to ... -
Link between western Arabian sea surface temperature and summer monsoon strength and high-latitude abrupt climate events
(Geological Society of India, 2006)Sea surface temperature (SST) is modulated by the summer monsoon winds and the associated upwelling in the Arabian Sea. Here, I report the changes of summer and winter SST's in the western Arabian Sea reconstructed for the ... -
Morphometric characteristics in the horseshoe crab Tachypleus gigas (Arthropoda: Merostomata)
(NISCAIR, CSIR, 2000)The relationships observed between total carapace length with carapace width, carapace weight, telson length, body weight were found statistically significant (p < 0.05) in the male and female horseshoe crab, Tachypleus ...

