Integrated Research during Cruise 33 of the R/V Akademik Nikolaj Strakhov

Sivkov, Vadim; Peive, A. A.; Bubnova, E. S.; Akhmedzyanov, V. R.; Krechik, V. А.; Sukhikh, E. A.

doi:10.1134/s0001437019020164

Cited by 3 publications

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“…Multibeam bathymetry survey was carried out at the western part of the Romanche Trench during the 33 th cruise of the research vessel Akademik Nikolaj Strakhov in 22 nd of November 2016 [2] ( Fig. 1 ).…”

Section: Experimental Design Materials and Methodsmentioning

confidence: 99%

Multibeam bathymetry data of the western part of the Romanche Trench (Equatorial Atlantic)

2021

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We present the multibeam bathymetry data of the western part of the Romanche Trench (Equatorial Atlantic) which is the main natural corridor that regulates inflow of Antarctic Bottom Water into the eastern basin of the Atlantic Ocean. Multibeam bathymetry survey was carried out during the 33 th cruise of the research vessel Akademik Nikolaj Strakhov in November 2016. The data were collected using the multibeam echosounder RESON SeaBat 7150 and processed using PDS2000 software. The multibeam bathymetry data are presented as digital elevation models in XYZ tabular format ASCII (*.txt), ESRI ASCII grid (*.asc) and GeoTIFF raster (*.tif) formats with a resolution of 100 m. The dataset is available with the article.

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Section: Experimental Design Materials and Methodsmentioning

confidence: 99%

Multibeam bathymetry data of the western part of the Romanche Trench (Equatorial Atlantic)

2021

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Suspended Matter Distribution in the Surface Layer of the East Equatorial Atlantic

et al. 2020

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Study of the Contourite Drift north of the Kane Gap (eastern equatorial Atlantic)

Sivkov¹,

Bashirova²,

Dorokhova³

et al. 2019

Russ. J. Earth Sci.

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The sediment drift north of the Kane Gap has been investigated by means of the seismoacoustic profiling. The surface area of the drift is about 500 km 2 and maximal thickness is 70 m. The contourite drift was formed under the control of the Antarctic Bottom Water (AABW) flow in the Kane Gap. It is suggested naming this contourite fan as the "Kane Drift". Variations in the activity of the AABW current were registered in the sediment core ANS-33056, retrieved near the summit of the drift. For this purpose, the mean size of sortable silt (, mineral fraction 10-63 m) was used. It was shown that during the Mid-Pleistocene to Holocene, the speed of the AABW flow north of the Kane Gap was not strictly determined by the alternation of the climatic cycles. A strong relationship between the AABW flow and the short-time climatic fluctuations was found only during the marine isotope stages (MIS) 4 and 5: intensification of the near-bottom current coincides with the cold intervals. Moreover, during the Terminations II and I (MIS 2/1 and MIS 6/5, respectively), the intensity of the current also increased. Maximal near-bottom current activity was registered at the end of the MIS 2.

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Integrated Research during Cruise 33 of the R/V Akademik Nikolaj Strakhov

Cited by 3 publications

References 0 publications

Multibeam bathymetry data of the western part of the Romanche Trench (Equatorial Atlantic)

Multibeam bathymetry data of the western part of the Romanche Trench (Equatorial Atlantic)

Suspended Matter Distribution in the Surface Layer of the East Equatorial Atlantic

Study of the Contourite Drift north of the Kane Gap (eastern equatorial Atlantic)

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