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Alevizos, Evangelos; Greinert, Jens (2018): Grid files from two AUV missions in the DISCOL area during the SONNE cruise SO242/1. PANGAEA,, Supplement to: Alevizos, Evangelos; Schoening, Timm; Köser, Kevin; Snellen, Mirjam; Greinert, Jens (in review): Quantification of the fine-scale distribution of Mn-nodules: insights from AUV multi-beam and optical imagery data fusion. Biogeosciences Discussions, 1-29,

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The zip file contains grid files in UTM 16S resulted from AUV mutlibeam data processing and a table with descriptions of these grid files. AUV bathymetry data resulted from interpolation of multibeam depth measurements using the IDW algorithm in SAGA GIS. The AUV bathymetric derivatives (Bathymetric Position Index, Concavity, LS factor, and Terrain Ruggedness Index were calculated in SAGA GIS. The slope derivative was calculated in ArcMap. The AUV backscatter statistics (10th quantile, 90th quantile, mean and mode) were calculated in FMGT Geocoder. The Bayesian classification map was created in SAGA GIS using data from Bayesian classification in Matlab. The ISODATA classification map was created in SAGA GIS using the the AUV backscatter statistics and the Random Forest predictive map was created using the MGET toolbox in ArcMap and the AUV bathymetry, bathymetric derivatives and backscatter statistics data.
Median Latitude: -7.085067 * Median Longitude: -88.483333 * South-bound Latitude: -7.097500 * West-bound Longitude: -88.505700 * North-bound Latitude: -7.072633 * East-bound Longitude: -88.460967
Date/Time Start: 2015-08-05T07:48:00 * Date/Time End: 2015-08-06T03:15:00
Minimum Elevation: -4163.6 m * Maximum Elevation: -4140.7 m
SO242/1_47-1 (SO242/1_47-1_AUV 6) * Latitude Start: -7.072633 * Longitude Start: -88.460967 * Latitude End: -7.097500 * Longitude End: -88.505700 * Date/Time Start: 2015-08-05T07:48:00 * Date/Time End: 2015-08-06T03:15:00 * Elevation Start: -4163.6 m * Elevation End: -4140.7 m * Campaign: SO242/1 (JPI-OCEANS) * Basis: Sonne_2 * Device: Autonomous underwater vehicle (AUV)
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