scholarly journals Distribution of 228Ra in surface sea water of the East Indian Ocean.

1979 ◽  
Vol 13 (5) ◽  
pp. 201-206 ◽  
Author(s):  
Takashi Okubo ◽  
Kazunori Furuyama ◽  
Masanobu Sakanoue
Keyword(s):  
Indian Ocean ◽  
Sea Water ◽  
East Indian ◽  
East Indian Ocean

Seasonal variations in the Indian Ocean along 110°E. I. Hydrological structure of the upper 500 m

1969 ◽  
Vol 20 (1) ◽  
pp. 1 ◽  
Author(s):  
DJ Rochford
Keyword(s):  
Indian Ocean ◽  
Surface Waters ◽  
Water Masses ◽  
Surface Currents ◽  
Temperature Changes ◽  
East Indian ◽  
Hydrological Structure ◽  
The Indian Ocean ◽  
The Tropics ◽  
East Indian Ocean

Tropical and subtropical water masses at surface and subsurface depths were separated by their salinity, temperature, oxygen, and nutrient characteristics. The annual mean depths and latitudinal extent of these water masses were determined. Annual changes in the upper 50 m were generally so small relative to those found in other oceans that advection and mixing must have been less important in their genesis than local climatic changes. There was a barely significant seasonal rhythm in surface phosphate and nitrate, with peak occurrences of each some 6 months apart. At each latitude the permanent thermal discontinuity centred around a particular isotherm varied little in intensity during the year, but rose and fell in accordance with surface currents. The thermocline south of c. 18�S. varied little in depth but greatly in intensity during the summer. The depth of the mixed layer was much less in summer and at all times shallower in the tropics. The depth of this layer was governed more by the accumulation of surface waters by zonal currents and eddies, than by wind stress or convective overturn. Therefore there was little difference from south to north, or month to month, in average nutrient values of this mixed column. The movement of the various surface waters, deduced from salinity and temperature changes during the year, usually agrees with geostrophic currents across 110�E, and ships' observations of surface currents in the south-east Indian Ocean.

Spatial variation of CDOM and its influencing factors in tropical East Indian Ocean during summer

2018 ◽  
Author(s):  
Xiaoqing Cai ◽  
Xiaoyong Wang ◽  
Jie Meng ◽  
Dayong Bi ◽  
Qingwei Zhou
Keyword(s):  
Indian Ocean ◽  
Spatial Variation ◽  
Influencing Factors ◽  
East Indian ◽  
East Indian Ocean

Hydrology of the Indian Ocean. III. Water masses of the upper 500 metres of the South-east Indian Ocean

1964 ◽  
Vol 15 (1) ◽  
pp. 25 ◽  
Author(s):  
DJ Rochford
Keyword(s):  
Indian Ocean ◽  
Persian Gulf ◽  
Water Mass ◽  
Sea Water ◽  
Core Layer ◽  
Water Masses ◽  
Intermediate Water ◽  
Surface Currents ◽  
North West ◽  
East Indian

The following seven water masses have been identified, and their distribution traced during several seasons of the year: Red Sea mass, with the same distribution and properties in 1962 as the north-west Indian Intermediate described in 1959-60; Persian Gulf mass, which is confined to the region south of Indonesia and is limited in extent of easterly flow by the opposing flow of Banda Intermediate water; upper salinity minimum mass, entering via Lombok Strait and moving zonally in the direction of the prevailing surface currents, a secondary movement of this water mass towards north-west Australia is limited by the northern boundary of a south-east Indian high salinity water mass. This latter water mass occurs as three separate core layers north of 22-23� S. The deep core layer mixes with waters of the oxygen maximum below it, the mid-depth core layer mixes with Persian Gulf and upper salinity minimum water masses, and the upper core layer mixes with the Arabian Sea water mass. The latter water mass spreads eastwards to about 120� E. and southwards to north-west Australia, in conformity with surface currents. A sixth water mass enters with the counter-current and is found as a salinity maximum within the thermocline to about 20� S. A seventh water mass characterized by a salinity maximum around temperatures of 28-29�C has a limited distribution and an unknown origin. Both of these water masses move in the direction of surface currents.

A possible relationship between East Indian Ocean SST and tropical cyclone affecting Korea

2014 ◽  
Vol 76 (1) ◽  
pp. 283-301 ◽  
Author(s):  
Ki-Seon Choi ◽  
Sangwook Park ◽  
Ki-Ho Chang ◽  
Jong-Ho Lee
Keyword(s):  
Tropical Cyclone ◽  
Indian Ocean ◽  
East Indian ◽  
East Indian Ocean

scholarly journals Atmospheric microplastic over the South China Sea and East Indian Ocean: abundance, distribution and source

2020 ◽  
Vol 389 ◽  
pp. 121846 ◽  
Author(s):  
Xiaohui Wang ◽  
Changjun Li ◽  
Kai Liu ◽  
Lixin Zhu ◽  
Zhangyu Song ◽  
...  
Keyword(s):  
Indian Ocean ◽  
South China Sea ◽  
South China ◽  
The South China Sea ◽  
Abundance Distribution ◽  
The South ◽  
China Sea ◽  
East Indian ◽  
East Indian Ocean

Mixing Trajectories of Intermediate Depth Waters of the South-East Indian Ocean as Determined by a Salinity Frequency Method

1963 ◽  
Vol 14 (1) ◽  
pp. 1 ◽  
Author(s):  
DJ Rochford
Keyword(s):  
Indian Ocean ◽  
Water Masses ◽  
Intermediate Water ◽  
The South ◽  
Intermediate Depth ◽  
East Indian ◽  
The Core ◽  
Deep Mixing ◽  
Core Method ◽  
East Indian Ocean

A new method for the detection of water masses and for the tracing of their mixing paths is described. Histograms of the salinity frequency distribution on 0.10 σt intervals from σt 26.90 to 27.70 contain modes which indicate the salinity characteristics of the intermediate water masses of the south-east Indian Ocean. These salinity characteristics are used to trace the extent of spreading of the water masses on these σt intervals and to determine trajectories of shallow and deep mixing. Comparison is made of the results obtained by the new method with those by the core method for the water masses and circulation in intermediate depth of the south-east Indian Ocean. The core method in this region has not been able to show the large extent of deep mixing associated with the spreading of the Banda and Antarctic Intermediate water masses. The core method has also failed to show the widespread distribution of patches of Banda water at about 400-500 m throughout the whole south-east Indian Ocean.

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