Browsing Institute's contributions by Title
Now showing items 8747-8766 of 9167
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Utility of natural generalised inverse technique in the interpretation of dyke structures
(NISCAIR, CSIR, 2005)Forward and Inverse methods of magnetic interpretation have been used to estimate the parameters of dyke like intrusion over the eastern continental shelf of India. In the forward problem, the tentative parameters of the ... -
Utilization of adult burrows by juveniles of the ghost shrimp, Callianassa japonica Ortmann: evidence from resin casts of burrows
(Carcinological Society of Japan, 1992) -
Utilization of high resolution satellite geoid data for estimation of lithospheric thickness in the Bay of Bengal
(NISCAIR, CSIR, 2009)Very high-resolution database generated from Seasat, Geosat GM, ERS-1 and TOPEX/ POSEIDON altimeters data of the northern Indian Ocean has been used for the first time for preparation of geoid and free-air gravity maps. ... -
Utilization of nitrate and phosphate by the green alga Tetraselmis gracilis Kylin
(CSIR-NISCAIR, 1975) -
UV radiation and natural fluorescence linked primary production in Antarctic waters
(Marine Biological Association of India, 2001)Primary productivity and chlorophyll values have been measured using an underwater profiling radiometer for the first time in the waters around Indian Antarctic Station (70°46'S & 11°44'E) in the summer of 1994. The profiles ... -
UV radiation and primary production in the Antarctic waters
(Department of Ocean Development, New Delhi, 1997)A profiling underwater radiometer was used for the first time in the waters around Indian Antarctic Station (70 degrees 46 minutes S and 11 degrees 44 minutes E) in the summer of 1994. The profiles include natural fluorescence ... -
UV-absorbing bacteria in coral mucus and their response to simulated temperature elevations
(Springer, 2013)Reef-building corals encompass various strategies to defend against harmful ultraviolet (UV) radiation. Coral mucus contains UV-absorbing compounds and has rich prokaryotic diversity associated with it. In this study, we ... -
Validation of argo data in the Indian Ocean
(Universidad de Concepcion, 2004)ARGO-salinity data from the Indian Ocean are validated using salinity from float-versus-float match-ups and also using CTD observations from three cruises. Validation data sets are selected in such a way that the float and ... -
Validation of EIA sampling methods - bacterial and biochemical analysis
(International Society of Offshore and Polar Engineers, Cupertino, CA (USA), 1999)Deep sea sediments from Central Indian Ocean Basin (CIOB) were sampled from 10 degrees .00'-10 degrees .10'S latitude and 75 degrees .55'-76 degrees .05'E longitude for assessing the potential environmental impact of ... -
Validation of ERS-1 and high-resolution satellite gravity with in-situ shipborne gravity over the Indian offshore regions: Accuracies and implications to subsurface modeling
(Taylor & Francis, 2007)Geoid and gravity anomalies derived from satellite altimetry are gradually gaining importance in marine geoscientific investigations. Keeping this in mind, we have validated ERS-1 (168 day repeat) altimeter data and very ... -
Validation of multi-channel scanning microwave radiometer on-board Oceansat-1
(Indian Academy of Sciences, 2004)Sea surface temperature (SST), sea surface wind speed (WS) and columnar water vapour (WV) derived from Multi-frequency Scanning Microwave Radiometer (MSMR) sensor on-board IRS-P4 (Oceansat-1) were validated against the in ... -
Validation of multi-channel scanning microwave radiometer onboard OCEANSAT - 1
(Allied, India, 2003)IRS-P4 (OCEASAT-1) was the first operational oceanographic satellite that India has launched. An extensive validation campaign was unleashed immediately after its launch in May 1999. Various platforms (Ship, Moored buoy, ... -
Validation of salinity data from ARGO floats: Comparison between the older ARGO floats and that of later deployments
(The Korean Earth Science Society, 2005)Continued observation of ARGO floats or years (about 4 years) makes the conductivity sensor more vulnerable to fouling by marine life and associated drift in salinity measurements. In this paper, we address this issue by ... -
Validation of satellite derived LHF using coare_3.0 scheme and time series data over north-east Indian Ocean
(Universidad de Concepcion, 2004)Time series measurement of surface meteorological parameters using an Autonomous Weather Station and Moored Buoy positioned at 10.5 N and 72 E from July to November 2000 are used to compute latent heat flux (LHF) using ... -
Validation of satellite-derived tropical cyclone heat potential with in situ observations in the North Indian Ocean
(Taylor & Francis, 2012)Tropical cyclone heat potential (TCHP) is an important ocean parameter influencing cyclones and hurricanes. The best approach for computing TCHP is to use in situ measurements. However, since in situ data have both spatial ... -
Validation of sea surface temperature, wind speed and integrated water vapour from MSMR measurements. Project report
(National Institute of Oceanography, India, 2003)IRS-P4 (OCEANSAT-1) is the first operational oceanographic satellite that India has launched. An extensive validation campaign was unleashed immediately after its launch in May 1999. Various platforms (viz., ship, moored ... -
Validity of zooplankton biomass estimates and energy equivalent in the Indian Ocean
(CSIR-NISCAIR, 1986)Analysis of the published data on zooplankton biomass in the Indian Ocean reveals that due to omission of data from highly productive neritic Waters, the projected values of 519 x 10 6 tons become underestimated by 91 x ... -
Variability in abundance and fluxes of dimethyl sulphide in the Indian Ocean
(Springer, 2007)Dimethyl sulphide (DMS) is a biogenic gas of climatic significance on which limited information is available from the Indian Ocean. To fill in this gap, we collected data on DMS and DMSPt (total dimethylsulphoniopropionate) ... -
Variability in biological responses influenced by upwelling events in the Eastern Arabian Sea
(Elsevier, 2008)This study documents the result of field observations from the southeastern Arabian Sea during onset, peak and late phases of summer monsoon. The pronounced variations in phytoplankton standing stock (chlorophyll a), primary ...