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dc.contributor.authorVarkey, M.J.
dc.contributor.authorNagarajan, R.
dc.date.accessioned1995-05-21T10:01:10Z
dc.date.accessioned2017-09-29T13:48:27Z
dc.date.available1995-05-21T10:01:10Z
dc.date.available2017-09-29T13:48:27Z
dc.date.issued1985
dc.identifier.citationMausam, vol.36; 1985; 57-66
dc.identifier.issn0252-9416
dc.identifier.urihttp://drs.nio.org/drs/handle/2264/6369
dc.description.abstractContinuous vertical profiles of temperature and salinity recorded by a CTD-system from the continental slope and the continental rise off Goa, west coast of India, were used for delineating the gross statistical features of the fine structure and to understand the underlying physical processes. Spectra of temperature and salinity fluctuations from the different stations showed similar patterns and trend of decrease to a wave length of about 10 m, generally with a crest like feature at 20 m wave length. The estimates of spectral density for temperature and salinity were comparatively very high for low wave numbers and showed a difference varying from 1.5 to 2 decades. The spectra for the range 0-0.11 cy/m computed using the perturbation series from a first difference filter and corrected for the filter-response followed an average slope of - 2.9 (range: - 2.57 to - 3.43 and std. dev.: - 0.3) and - 2.6 (range: - 2.05 to - 3.15 and std. dev.: - 0.36) with correlation coefficients - 0.96 and - 0.92 for temperature and salinity, respectively. Coherency estimates were high ( 0.8) for the range 0-0.02 cy/m and were independent of the distance between stations showing the spatial homogeneity of low wave number processes. Correlation coefficients between T' and S' and the individual standard deviations for different layers increased with increasing filter length and generally decreased with depth. Both hoizontal and vertical mixing processes were very active in the upper water column (0-250 m). In the deeper layers, 500 m, non-isopycnal mixing processes were found to be active
dc.languageen
dc.publisherIndia Meteorological Department
dc.relation.ispartofMausam
dc.relation.isreferencedbySCI
dc.subjectOceanography and Limnology
dc.subject.othervertical mixing
dc.subject.otherspectra
dc.subject.otherwave number
dc.subject.otherstructures
dc.subject.otherstatistics
dc.subject.othervertical profiles
dc.subject.othersalinity profiles
dc.subject.othercontinental slope
dc.subject.othertemperature
dc.subject.otherISW, India, West Coast
dc.titleSpectra and gross features of vertical temperature and salinity profiles off the central west coast of India
dc.typeJournal Article
dc.affiliation.authorCSIR-National Institute of Oceanography, Dona Paula, Goa, India


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