|
|
|
|
|
| Currie, Ri. |
| Observations made during the International Indian Ocean Expedition provide the basis for a description of the summer circulation in the upper 500 m of the western Arabian Sea, off the coast of Oman. Under the influence of the south-west monsoon a pronounced geostrophic current develops along at least 1 000 km off the South-East Arabian coast between Ras Fartak and Ras al Hadd in May and the strong south-westerly wind brings about offshore transport of the surface layers between 55-degrees and 60-degrees-E. Water is upwelled onto the continental shelf from depths of about 150 m and this creates a strong negative sea-surface temperature anomaly along the coast, reaching a maximum development in July-August. With the decline of the monsoon upwelling ceases in... |
| Tipo: Text |
Palavras-chave: CIRCULATION; UPWELLING; ARABIAN SEA; COAST OF OMAN; IIOE. |
| Ano: 1992 |
URL: http://archimer.ifremer.fr/doc/00100/21175/18792.pdf |
| |
|
|
| Sardessai, S. |
| Organic carbon and humic acids in the sediments of the Arabian Sea show distinct regional variations to the south and north of 15-degrees-N latitude. Significant variations are also observed from the shelf of the slope regions. Organic carbon and humic acids are enriched on the slope compared to the inner and outer shelf. While upwelling, primary productivity and redox conditions at the bottom are known to influence organic matter accumulation in sediments, bacterial population and sediment texture also contribute to the preservation of organic matter and humic acids. A positive correlation (r = 0.716) between total organic carbon and humic acid content in the sediments indicates fairly favourable conditions for the humification of organic matter. The C/N... |
| Tipo: Text |
Palavras-chave: ORGANIC CARBON; HUMIC ACIDS; ARABIAN SEA; SURFICIAL SEDIMENTS; ENVIRONMENTAL FACTORS. |
| Ano: 1994 |
URL: http://archimer.ifremer.fr/doc/00099/21026/18652.pdf |
| |
|
|
| Naqvi, Wa. |
| Utilizing all the available data, the distribution of nitrite at the secondary nitrite maximum is studied to delineate the boundaries of the denitrification zone and to understand some of the processes that control the extent of denitrification in the Arabian Sea. Nitrite distribution shows little correspondence with primary productivity, and the three major sites of seasonal upwelling appear to be located outside the zone of intense denitrification. This distinguishes the Arabian Sea from the other two major oceanic denitrification sites, located in the Pacific Ocean. The relationship between nitrite and nitrate deficit suggests that the distribution of the former effectively reflects the extent of denitrification. The locus of the most intense... |
| Tipo: Text |
Palavras-chave: ARABIAN SEA; DENITRIFICATION; PRIMARY PRODUCTION; SURFACE CIRCULATION; WINTER CONVECTION. |
| Ano: 1991 |
URL: http://archimer.ifremer.fr/doc/00101/21257/18870.pdf |
| |
|
|
|
