DRS at CSIR-National Institute of Oceanography: Recent submissions
Now showing items 5341-5360 of 9443
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Directional spectrum of ocean waves from array measurements using phase/time/path difference methods
(Pergamon, 2000)Wave direction has for the first time been consistently, accurately and unambiguously evaluated from array measurements using the phase/time/path difference (PTPD) methods of Esteva in case of polygonal arrays and Borgman ... -
Low frequency variability of the Indian Ocean from TOPEX/POSEIDON sea surface height anomalies
(NIO, Dona Paula, Goa (India), 2000)The sea surface height (SSH) anomalies derived from TOPEX/POSEIDON altimeter have been utilized to study the variability of surface circulation in the Indian Ocean during 1993-1999. The Western Bay, southeastern Arabian ... -
Seasonal cyclogenesis and the role of near-surface stratified layer in the Bay of Bengal
(NIO, Dona Paula, Goa (India), 2000)The role of the near-surface stratified layer developed due to the spread of low salinity waters under the influence of freshwater influx on the cyclogenesis over the Bay of Bengal is addressed. The seasonal variation of ... -
Directional spread parameter at intermediate water depth
(Pergamon, 2000)The characteristics of directional spread parameters at intermediate water depth are investigated based on a cosine power '2s' directional spreading model. This is based on wave measurements carried out using a Datawell ... -
Wave climatology of the Indian Ocean derived from altimetry and wave model
(NIO, Dona Paula, Goa (India), 2000)GEOSAT altimeter data for the period 1986-1989 have been utilised to derive wave climatology for the Indian Ocean region bounded by 20 degrees S to 25 degrees N and 40 degrees E to 110 degrees E. The results are presented ... -
Inertial currents in the Indian Ocean derived from satellite tracked surface drifters
(Ifremer/ CNRS/ IRD/ Editions scientifiques et medicales Elsevier SAS. Tous droits reserves, 2000)Satellite-tracked surface drifters were used to analyze the characteristics of inertial currents in the tropical Indian Ocean. The drifters were drogued at 15 m depth and had wind-produced slips less than 0.1% of the wind ... -
Retrieval of sea surface velocities using sequential ocean colour monitor (OCM) data
(NIO, Dona Paula, Goa (India), 2000)The Indian Remote Sensing Satellite, IRS-P4 (Oceansat-I) launched on May 26, 1999 carried two sensors on board, i.e., Ocean Colour Monitor (OCM) and a Multifrequency Scanning Microwave Radiometer (MSMR) to study both ... -
Chlorophyll modulation of sea surface temperature in the Arabian Sea in a mixed-layer isopycnal general circulation model
(American Geophysical Union, 2000)Remotely sensed chlorophyll pigment concentrations from the Coastal Zone Color Scanner (CZCS) are used to estimate biological heating rate and investigate the biological modulation of the sea surface temperature (SST) in ... -
Inter-annual variability of sea surface temperature, wind speed and sea surface height anomaly over the tropical Indian Ocean
(NIO, Dona Paula, Goa (India), 2000)Being land-locked at the north, the Indian Ocean and its surrounding atmosphere behave in such a way that the ocean-atmosphere interaction over this domain is different from that over the other oceans, exhibiting a peculiar ... -
Studies on thermal fields in the Bay of Bengal
(Indian Geological Congress, Roorkee, India, 2000)As an Indian component of the International Tropical Ocean Global Atmosphere (TOGA) program, the National Institute of Oceanography, Goa, has initiated a long-term observational program during 1990 with financial support ... -
Signatures of Kelvin and Rossby wave propagation in the northern Indian Ocean from TOPEX/POSEIDON Altimeter
(NIO, Dona Paula, Goa (India), 2000)The climatological monthly mean sea surface height (SSH) anomalies derived from T/P altimeter in the northern Indian Ocean, during 1993 to 1997, are used to prepare time-longitude plots. Along the equator they reveal strong ... -
Wave directional spectrum from SAR imagery
(Indian Society of Remote Sensing, Deharadun, 2000)Gaussian smoothed SAR image spectra have been evaluated from 512 x 512 pixel subscenes of image mode ERS-1 SAR scenes off Goa, Visakhapatnam, Paradeep and Portugal. The two recently acquired scenes off Portugal showed the ... -
Characteristics of waves off Goa, west coast of India
(Coastal Research Foundation, 2000)Directional wave measurements were carried out using Datawell directional waverider buoy off Goa along west coast of India during the south west monsoon period in 1996 and the results are presented. Theoretical joint ... -
Remote mapping of sea-surface currents using radiowave doppler radar systems
(Marcel Dekker, New York, USA, 2000) -
Chlorophyll modulation of mixed layer thermodynamics in a mixed-layer isopycnal general circulation model - An example from Arabian Sea and Equatorial Pacific
(NIO, Dona Paula, Goa (India), 2000)Western Tropical Indian Ocean, Arabian Sea and equatorial Pacific are known to be regions of intense bio-chemical-physical interactions with Arabian sea being largest in seasonal phytoplankton bloom while the equatorial ... -
A climatic atlas of the air-sea interaction parameters and fluxes of the oceans using satellite data
(NIO, Dona Paula, Goa (India), 2000)The present climatic atlas is based on the newly available data set known as the Hamburg Ocean Atmosphere Parameters and fluxes from Satellite data (HOAPS), for the global oceans. It presents the basic fields of air-sea ... -
Detection of Bay of Bengal eddies from TOPEX and in situ observations
(Sears Foundation, 2000)Oceanic eddies have warm or cold temperatures and high or low sea surface height (SSH) at the center depending upon the direction of rotation. However, since the Bay of Bengal waters are highly stratified, sea surface ... -
Anomalous circulation in the eastern equatorial Indian Ocean during southwest monsoon of 1994
(NIO, Dona Paula, Goa (India), 2000)Geostrophic circulation derived from hydrographic data collected during July-August, 1994 along 80, 84 and 88E between 5N and 3S latitudinal belt in the eastern equatorial Indian Ocean is presented. A broad westward flow ... -
The Hamburg Ocean-Atmosphere Parameters and Fluxes from Satellite Data (HOAPS): A climatological atlas of satellite-derived air-sea interaction parameters over the world oceans
(Max-Planck-Institut fur Meteorologie; Hamburg, 2000) -
Marine data and information management system for the Indian Ocean
(Indian National Science Academy, New Delhi, India, 2000)