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Gausepohl, Florian; Hennke, Anne; Schoening, Timm; Köser, Kevin; Greinert, Jens; Steinführer, Anja (2019): Merged and geo-referenced Side Scan Sonar map from AUV dives during SONNE cruise SO242/1. PANGAEA, https://doi.org/10.1594/PANGAEA.905617, In 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, https://doi.org/10.5194/bg-17-1463-2020

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Abstract:
The AUV-acquired Side Scan Sonar (SSS) data during RV SONNE cruise SO242_1 of the entire DEA is provided as GeoTIFF here (0.5 x 0.5 m resolution, UTM 16S).
Coverage:
Median Latitude: -7.073192 * Median Longitude: -88.460042 * South-bound Latitude: -7.073217 * West-bound Longitude: -88.460067 * North-bound Latitude: -7.073167 * East-bound Longitude: -88.460017
Date/Time Start: 2015-07-31T18:00:00 * Date/Time End: 2015-07-31T21:08:00
Minimum Elevation: -4158.3 m * Maximum Elevation: -4135.4 m
Event(s):
SO242/1_18-1 (SO242/1_18-1_AUV 2) * Latitude Start: -7.073217 * Longitude Start: -88.460067 * Latitude End: -7.073167 * Longitude End: -88.460017 * Date/Time Start: 2015-07-31T18:00:00 * Date/Time End: 2015-07-31T21:08:00 * Elevation Start: -4135.4 m * Elevation End: -4158.3 m * Campaign: SO242/1 (JPI-OCEANS) * Basis: Sonne_2 * Method/Device: Autonomous underwater vehicle (AUV)
Comment:
AUV ABYSS (REMUS 6000 type) is equipped with an Edgetech 2200 MP SSS system. The merged dataset includes the following surveys: Abyss189 - SO242/1_25-1; Abyss190 - SO242/1_33-1. The survey altitude during the SSS missions were set to 20 m, the data were processed with CleanSweep (from Ocean Imaging Consultants). The merged data set was geo-referenced based on the AUV MBES data (https://doi.pangaea.de/10.1594/PANGAEA.905580) as a reference layer. The plough marks resolved in both data sets and three dominant morphological structures with distinct substrate characteristics were applied as anchor points for the alignment (Gausepohl et al, 2020).
Change history:
2020-07-27T13:08:02 – corrected .tif data file; georeferencing in data set version before was mistakenly not the most recent version
Size:
279.6 MBytes

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