dc.contributor.author | Deshpande, R.D. | |
dc.contributor.author | Muraleedharan, P.M. | |
dc.contributor.author | Singh, R.L. | |
dc.contributor.author | Kumar, B. | |
dc.contributor.author | Rao, M.S. | |
dc.contributor.author | Dave, M. | |
dc.contributor.author | Sivakumar, K.U. | |
dc.contributor.author | Gupta, S.K. | |
dc.date.accessioned | 2013-12-10T05:55:49Z | |
dc.date.available | 2013-12-10T05:55:49Z | |
dc.date.issued | 2013 | |
dc.identifier.citation | Marine Chemistry, vol.157; 2013; 144-161 | |
dc.identifier.uri | http://drs.nio.org/drs/handle/2264/4403 | |
dc.description.abstract | Isotopic compositions ( delta<sup>18O</sup> and deltaD) and salinity (S) of 683 surface water samples from the Arabian Sea (AS) collected during 2008–2010, were measured to understand the factors controlling the spatio-temporal distribution of these parameters. From the distributions of delta<sup>18O</sup> and salinity (S), and the relationships between delta<sup>18O</sup>– deltaD and delta<sup>18O</sup>–S, the following inferences have been drawn: (1) there is a broad correspondence between the geographic distributions of the delta<sup>18O</sup> and S; (2) in spite of a large scatter, a statistically significant delta<sup>18O</sup>–S relationship can be identified in much of the investigated part of the AS; (3) the delta<sup>18O</sup>– deltaD regression line for all samples clumped together has a slope of 3.2 (± 0.16), much lower than that (7.37) for the global ocean surface water line (GOSWL), which in the case of the AS is seen only for samples with salinity < 34; (4) the linear relationship between delta<sup>18O</sup> and deltaD breaks down completely in the months of March–May; (5) contrary to the adjoining Bay of Bengal (BOB), both delta<sup>18O</sup> and S progressively increase from the equator northwards; (6) the delta<sup>18O</sup>– deltaD and the delta<sup>18O</sup>–d-excess relationships indicate strong kinetic fractionation due to evaporation from surface waters of the AS throughout the year, with enhancement during summer months. | |
dc.language.iso | en | |
dc.publisher | Elsevier | |
dc.rights | An edited version of this paper was published by Elsevier. Copyright [2013] Elsevier | |
dc.subject | geographical distribution | |
dc.subject | temporal distribution | |
dc.subject | salinity | |
dc.subject | oxygen isotopes | |
dc.title | Spatio-temporal distributions of delta<sup>18</sup>O, delta D and salinity in the Arabian Sea: Identifying processes and controls | |
dc.type | Journal Article | |