Multibeam bathymetry data of Discovery Gap in the eastern North Atlantic

We present a multibeam bathymetry dataset of Discovery Gap; a narrow gap in ridge of the Azores-Gibraltar Fracture Zone (eastern North Atlantic). The gap serves as gateway for the exchange of deep water between the Madeira and Iberian abyssal plains. A bathymetric survey was carried out during the 4...

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Published in:Data in brief 2020-08, Vol.31, p.105679-105679, Article 105679
Main Authors: Dudkov, Ivan, Dorokhova, Evgenia
Format: Article
Language:English
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Deep ocean gateway
Digital elevation model
Earth and Planetary Science
Geomorphology
Multibeam swath bathymetry
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description We present a multibeam bathymetry dataset of Discovery Gap; a narrow gap in ridge of the Azores-Gibraltar Fracture Zone (eastern North Atlantic). The gap serves as gateway for the exchange of deep water between the Madeira and Iberian abyssal plains. A bathymetric survey was carried out during the 43rd cruise of the research vessel (R/V) Akademik Nikolaj Strakhov in October 2019. The data were collected with the acquisition system RESON SeaBat 7150 (12.5 kHz), using the integrated navigation system Applanix POS MV, and processed using QINSy software. The multibeam bathymetry data are presented in tabular format (ASCII-table (*.txt), spreadsheets (*.xlsx)), and as a digital elevation model (DEM) of the bottom relief. The DEM was created using ArcGIS software in ESRI-ASCII-grid (*.asc) and GeoTIFF raster (*.tif) formats with a spatial resolution of 100 m. We provide processed data that can be used directly for further studies. The dataset is available with the article.
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subjects Deep ocean gateway
Digital elevation model
Earth and Planetary Science
Geomorphology
Multibeam swath bathymetry
title Multibeam bathymetry data of Discovery Gap in the eastern North Atlantic
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