Geo-referenced acoustic and optical data sets from the DISCOL area in the Peru-basin acquired during RV SONNE cruise SO242/1

DOI

The latest expedition to the DISCOL experimental area (DEA, www.discol.de) was conducted in 2015 during cruise SO242 with the German RV SONNE. The entire disturbance area was extensively mapped with the ship-mounted Multibeam Echosound (MBES) System. An AUV has been deployed several times in different modes for the acquisition of high resolution MBES, Side Scan Sonar (SSS) and optical data. Even with state-of-the-art positioning technology the remaining navigation uncertainties in the deep sea and the use of a variety of acoustical and optical sensors at different resolutions require detailed post-processing in terms of absolute geographic positioning to improve the overall accuracy of the data. The ship-based bathymetric map of the survey area was used as absolute geographic reference and the AUV-acquired high resolution-data sets available here were geo-referenced and aligned to each other (see the respective assigned PANGEA-links for the different data sets and Gausepohl et al., in review, for details) resulting in the most accurate geo-referenced dataset of the DEA to date.The plough tracks from the disturbance experiment in the DEA in 1989 are visible in all of the acquired high resolution data sets, which enabled digitizing, geo-referencing and age-sequencing of the disturbance tracks (Gausepohl et al., in review).This dataset includes the gridded MBES data from the Kongsberg EM122 mounted in RV SONNE (https://doi.pangaea.de/10.1594/PANGAEA.905579) and the geo-referenced AUV ABYSS-acquired MBES (https://doi.pangaea.de/10.1594/PANGAEA.905580) and SSS (https://doi.pangaea.de/10.1594/PANGAEA.905617) datasets. Furthermore it includes two georeferenced photo mosaics generated from two AUV photo transects (https://doi.pangaea.de/10.1594/PANGAEA.905581). The identified, digitized and georeferenced plough marks are available as GIS-readable shape files here. We further provide the Matrix that was used for the age succession evaluation of the plough marks (Gausepohl et al., in review) in .xlsx and .csv format.

Supplement to: Gausepohl, Florian; Hennke, Anne; Schoening, Timm; Köser, Kevin; Greinert, Jens (2020): Scars in the abyss: reconstructing sequence, location and temporal change of the 78 plough tracks of the 1989 DISCOL deep-sea disturbance experiment in the Peru Basin. Biogeosciences, 17(6), 1463-1493

Identifier
DOI https://doi.org/10.1594/PANGAEA.905616
Related Identifier https://doi.org/10.5194/bg-17-1463-2020
Related Identifier https://store.pangaea.de/Publications/GausepohlF-etal_2019/DISCOL_Disturbance-Tracks_Age-Determination_Matrix.zip
Related Identifier https://store.pangaea.de/Publications/GausepohlF-etal_2019/Plough_Marks.zip
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.905616
Provenance
Creator Gausepohl, Florian; Hennke, Anne; Schoening, Timm ORCID logo; Köser, Kevin; Greinert, Jens ORCID logo
Publisher PANGAEA
Publication Year 2019
Rights Creative Commons Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Representation
Resource Type Supplementary Publication Series of Datasets; Collection
Format application/zip
Size 4 datasets
Discipline Earth System Research
Spatial Coverage (-88.516W, -7.119S, -88.333E, -6.985N)
Temporal Coverage Begin 2015-07-31T08:29:00Z
Temporal Coverage End 2015-08-17T14:53:00Z