Institute's contributions: Recent submissions
Now showing items 3861-3880 of 9252
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On an upwelling front, propagation of upwelling and vertical velocity in the eastern Arabian sea during monsoon, 1987
(PORSEC Committee, Shimizu, Japan, 1992)A coastal upwelling front parallel to the coast and identifiable upto a depth of 75 m was observed between 12.5 and 16 degrees N along the eastern Arabian Sea in September, 1987 from closely spaced digital BT data. With a ... -
Advective surface velocity in the north west Pacific derived from NOAA AVHRR images
(PORSEC Committee, Shimizu, Japan, 1992)Using sequential AVHRR images in November 1983, nearsurface advective velocities are derived in the region Kuroshio south of Japan. For deriving the velocities two methods are used. One is the Method of Cross Correlation ... -
Characteristic mixing triangles in the Bay of Bengal
(Indian Society for Physical Sciences of the Oceans, 1992)Temperature-salinity structures in the inner part of Bay of Bengal showed complete mixing processes in the upper bay, less than about 600 m can be characterisEd. by a mixing triangle constitutEd. by three characteristic ... -
Estimation of added-mass and damping coefficients of a tethered spherical float using potential flow theory
(Elsevier, 1992)Added-mass (alpha) and damping coefficients (beta) of a tethered spherical float, undergoing oscillatory motion in sinusoidal waves, have been derived from the motion generated velocity potential for one degree-of-freedom ... -
Coastal circulation and upwelling index along the east coast of India
(Indian Society for Physical Sciences of the Oceans, 1992)Hydrographic data collected during November-December, 1983 and July-August (1984) along sections normal to the east coast of India were analysed for salinity and temperature structures. Coastal circulation and volume ... -
Selection of site coolant intake and discharge of shore based power stations - coastal oceanographic considerations
(BARC, Bombay, 1992)Many new nuclear power plants, reactors are proposed along coastal area of Indian coastline apart from the existing ones. All these, being ultimately a heat exchange process, necessitate enormous quantity of cooling water ... -
Estimates of vertical velocities and eddy coefficients in the Bay of Bengal
(Indian Society for Physical Sciences of the Oceans, 1992)Vertical velocities and eddy coefficients in the intermediate depths of the Bay of Bengal are calculated from mean hydrographic data for 300 miles-squares. The linear current density (sigma- O) versus log-depth plots show ... -
Measuring the monsoon
(Reed Business Information Ltd., 1992)Monsoons are familiar elements of tropical life, bringing rain to the crops that feed millions. The effects do not stop there, in the Arabian Sea, the twice-yearly monsoon winds enrich the fishing grounds, as well as setting ... -
Relationships between Indian summer monsoon rainfall and ice cover over selected oceanic regions
(Indian Society for Physical Sciences of the Oceans, 1992)The variations in oceanic ice cover at selected polar regions during 1973 to 1987 have been analysed in relation to the seasonal Indian summer monsoon rainfall. The ice cover over the Arctic regions in June has negative ... -
Hydrographic features of the Lakshadweep (Laccadives) sea during winter
(Indian Society for Physical Sciences of the Oceans, 1992)Hydrographic features of the Lakshadweep Sea during winter have been studied using the data collected in December during the 13th cruise of R.V. Gaveshani. The mixed layer depth in this region varies between 30 and 70 m. ... -
Seasonally reversing current bands across 15 degrees N in the Arabian Sea and their implications
(NISCAIR, New Delhi, 1992)Geostrophic currents computed from hydrographic data collected in different months from a section along 15 degrees N in the Arabian Sea show alternate N-S current bands. Flow directions of these bands are found to reverse ... -
Sound-speed structure and propagational characteristics of a cold core eddy in the Bay of Bengal
(Indian Society for Physical Sciences of the Oceans, 1992)An analysis of acoustic characteristics of a cold core eddy in the Bay of Bengal reveals that the eddy introduces in sound-speEd. by about 10 ms-1. The depth of deep sound channel axis beneath eddy remains constant whereas ... -
Diurnal variability of heat fluxes and heat content at a few locations off central east coast of India during April 1989
(India Meteorological Department, 1992)Diurnal variability of surface wind speed, net heat exchange, sea surface temperature, vertical thermal structure and heat content at three locations, viz., station A (17 degrees 59'N, 83 degrees 53.9'E), station B (17 ... -
Wave refraction studies off Agonda beach (Goa)
(NISCAIR, New Delhi, 1992)Analysis of wave refraction and longshore current has been carried out for a narrow strip off the shores of Agonda (Goa, India). Zones with high wave energy and rip currents have been demarcated. It is found from the ... -
Diurnal and semi-diurnal tidal currents in the deep mid-Arabian sea
(Indian Academy of Sciences, 1992)Current meter records from two depths, approximately 1000 m, at three mooring in the deep mid-Arabian Sea were used to study tidal components. Tidal ellipses for the semi-diurnal (M2, S2 and K2) and the diurnal (K1 and P1) ... -
Estimation of design wave heights based on exterme value statistics for Kakinada coast, Bay of Bengal
(NISCAIR, New Delhi, 1992)Statistical analyses for longterm distribution of significant wave heights were performed using Lognormal, Weibull, Gumbel and Fretcher distributions for waves measured off Kakinada, Andhra Pradesh, India from June 1983 ... -
Potential vorticity field in the Bay of Bengal during southwest monsoon
(Indian Society for Physical Sciences of the Oceans, 1992)The distribution of potential vorticity along potential density surfaces in the upper 500 m indicates the presence of a wind driven anticyclonic gyre between 10 degrees N and 14 degrees N in the eastern Bay during southwest ... -
Water characteristics, mixing and circulation in the Bay of Bengal during southwest monsoon
(Yale University, 1992)Influence of the freshwater influx, the wind forcing and the Indian Ocean monsoon drift current on the property distributions and the circulation in the Bay of Bengal during southwest monsoon has been quantified. At the ... -
Satellite observations of the northeast monsoon coastal current
(PORSEC Secretariat, Shimizu, Japan, 1992)Satellite Infrared observations, from Advanced Very High Resolution Radiometer (AVHRR), during November 1987-February 1988 and hydrographic data from the eastern Arabian Sea are used to describe the poleward flowing coastal ...