DRS at CSIR-National Institute of Oceanography: Recent submissions
Now showing items 6851-6870 of 9513
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Palaeoceanographic implications of abundance and mean proloculus diameter of benthic foraminiferal species Epistominella exigua in sub-surface sediments from distal Bay of Bengal fan
(Indian Academy of Sciences, 2005)Temporal variation in abundance and mean proloculus diameter of the benthic foraminiferal species Epistominella exigua has been reconstructed over the last approx. 50,000 yr BP, from a core collected from the distal Bay ... -
Spatial distribution of meteorological parameters around 900 hPa level over the Arabian Sea and Indian Ocean regions during the IFP-99 of the INDOEX programme as revealed from the constant altitude balloon experiments conducted from Goa
(Indian Academy of Sciences, 2001)During the IFP-99 of the INDOEX programme, an Indo-French joint scientific team conducted 17 constant balloon flights from Goa (India) mainly to study the various features features of the continental air mass flow from the ... -
Coastal processes along the Indian coastline
(Indian Academy of Sciences, 2006)Based on the measured data, wave height and current speed at a few locations are presented along with the estimated sediment transport rates. The maximum significant wave height recorded during the passage of cyclone along ... -
Long-range forecast of monthly rainfall over India during summer monsoon season using SST in the north Indian Ocean
(Indian Academy of Sciences, 2006)Long-range forecasting of summer monsoon rainfall was reported through linear models by Delsole and Shukla3. They showed that minimum number of predictors are sufficient for accurate forecasts. Recent studies4,5 reported ... -
Occurrence of large fractions of mercury-resistant bacteria in the Bay of Bengal
(Indian Academy of Sciences, 2006)As insights from tolerance responses of native microflora are useful in deciphering their involvement in biogeochemical cycling of heavy metals, we enumerated mercury resistant bacteria (MRB) using sea water nutrient agar ... -
Evidences of methane-derived authigenic carbonates from the sediments of the Krishna–Godavari Basin, eastern continental margin of India
(Indian Academy of Sciences, 2006)Evidences of anaerobic oxidation of methane and interstitial carbonate precipitation have been recorded in sediment cores from Krishna–Godavari basin, Andhra Pradesh, India. High magnesian calcite and aragonite, typically ... -
Gas hydrate-related proxies inferred from multidisciplinary investigations in the India offshoe areas
(Indian Academy of Sciences, 2006)The presence of gas hydrates along the Indian continental margins has been speculated by earlier workers based on the identification of Bottom Simulating Reflection (BSR) on the multichannel seismic reflection records and ... -
Do gas seepage sites support distinct macrofaunal community ? - An observation in the tropical shelf region of Goa, Arabian Sea, India
(Indian Academy of Sciences, 2006)The macrofaunal community in the shelf region (depth 15–50 m) of Goa, Arabian Sea, India, at seven sites in the gas seep and seven sites in non-seep areas during March 2005 is examined. A total of 56 species were recorded, ... -
Some enigmatic aspects of the marine cyanobacterial genus, Trichodesmium
(Indian Academy of Sciences, 2006)Trichodesmium, an important nitrogen fixing marine genus has some coupled features that appear contrasting, either in their operational requirements or ecological dominance e.g. N2 fixation and photosynthesis take place ... -
Long-chain alkaenone unsaturation index as sea surface temperature proxy in southwest Bay of Bengal
(Indian Academy of Sciences, 2006)As a proxy of the sea surface temperature (SST), C sub(37) long-chain alkenones (LCAs) preserved in sediments of the southwestern Bay of Bengal and dating back to the last glacial period, were identified in SIM GC-EI MS ... -
Reply: Is Kappaphycus alvarezii heading towards marine bioinvasion ?
(Indian Academy of Sciences, 2006) -
Post-disaster reflections
(Indian Academy of Sciences, 2005) -
Need for reassessment in the post-tsunami scenario
(Indian Academy of Sciences, 2005)Tamil Nadu (India), in particular Nagapattinam, experienced major wrath of recent Tsunami. In view of this, it is of paramount importance to carry out geophysical studies over coastal and shelf regions to analyze any ... -
Three-phase tectonic evolution of the Andaman backarc basin
(Indian Academy of Sciences, 2005)A three-phase evolutionary scheme since Late Oligocene for the Andaman backarc basin is proposed based on the multibeam swath bathymetry, magnetic and seismological data. A SW–NE trending spreading ridge bisects the basin. ... -
Red tide of Noctiluca miliaris off south of Thiruvananthapuram subsequent to the ‘stench event’ at the southern Kerala coast
(Indian Academy of Sciences, 2005)'Red tides' refer to the discoloration of the ocean surface caused by the blooming of some planktonic organisms. A few species of dinoflagellates (a group of protists) periodically form red tides along the west coast of ... -
Variations in terrigenous sediment discharge in a sediment core from southeastern Arabian Sea during the last 140 ka
(Indian Academy of Sciences, 2005)The bulk concentration (wt%) and mass accumulation rates (MAR; g/cm sup(2)/ka) of terrigenous source representing elements such as Al, Ti, K and Zr in a sediment core (SK-129/CR-05) from southeastern Arabian Sea, record ... -
Science plan for coastal hazard preparedness
(Indian Academy of Sciences, 2005)The tsunami that hit the coast of India on 26 December 2004 reminded the country that our 7000 km long coastline is exposed to hazards and that we are not prepared to face all of them. Preparedness to guard against hazards ... -
Is Gulf of Mannar heading for marine bioinvasion?
(Indian Academy of Sciences, 2005) -
Ancient shell industry at Bet Dwarka island
(Indian Academy of Sciences, 2005)Almost every archaeological site in the Indian subcontinent has the remains of shells. It had been recognized as a major industry during the Indus Valley Civilization, dating back to the mid-Holocene. The most important ... -
Need of a disaster alert system for India through a network of real-time monitoring of sea-level and other meteorological events
(Indian Academy of Sciences, 2005)Need of a disaster alert system (DAS) capable of online transmission of real-time integrated sea-level and surface meteorological data is discussed. In addition to INSAT platform transmit terminal, VHF, etc., the ubiquitous ...

