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Schoening, Timm (2017): Results of nodule detection along AUV track SO239_19-1_AUV2 (Abyss_168) during SONNE cruise SO239. PANGAEA, https://doi.org/10.1594/PANGAEA.879868, In: Schoening, T (2017): Results of nodule detection along AUV tracks during SONNE cruises SO239 and SO242/1. PANGAEA, https://doi.org/10.1594/PANGAEA.883838

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Abstract:
Images were acquired by the DeepSurvey Camera on board GEOMAR's AUV Abyss. Nodules were delineated by the CoMoNoD algorithm [see related to references]. Result files are computed per AUV dive. Nodule detections below 5cm^2 are neglected as are detections above 707cm^2. Abundance statistics are computed per m^2 and gridded per m^2 as well. For overlapping images, max-pooling has been applied to select the values reported in the result files. Pixel values in the rendered maps correspond to the units reported in the ASCI files (median-nodule-size: cm^2, nodule-number: m^-2, percent-coverage: %, sorting, skewness and pixel-contributions are unit-free).
Related to:
Greinert, Jens; Schoening, Timm; Köser, Kevin; Rothenbeck, Marcel (2017): Seafloor images and raw context data along AUV track SO239_19-1_AUV2 (Abyss_168) during SONNE cruise SO239. PANGAEA, https://doi.org/10.1594/PANGAEA.882182
Peukert, Anne; Schoening, Timm; Alevizos, Evangelos; Köser, Kevin; Kwasnitschka, Tom; Greinert, Jens (2018): Understanding Mn-nodule distribution and evaluation of related deep-sea mining impacts using AUV-based hydroacoustic and optical data. Biogeosciences, 15(8), 2525-2549, https://doi.org/10.5194/bg-15-2525-2018
Schoening, Timm (2017): Source code for the Compact Morphology-based Nodule Delineation (CoMoNoD) algorithm. PANGAEA, https://doi.org/10.1594/PANGAEA.875070
Schoening, Timm; Jones, Daniel O B; Greinert, Jens (2017): Compact-Morphology-based poly-metallic Nodule Delineation. Scientific Reports, 7(1), https://doi.org/10.1038/s41598-017-13335-x
Coverage:
Median Latitude: 11.855233 * Median Longitude: -117.028160 * South-bound Latitude: 11.844808 * West-bound Longitude: -117.056692 * North-bound Latitude: 11.863933 * East-bound Longitude: -117.008736
Date/Time Start: 2015-03-21T18:11:00 * Date/Time End: 2015-03-22T09:40:00
Minimum Elevation: -4132.6 m * Maximum Elevation: -4132.6 m
Event(s):
SO239_19-1 (SO239_19-1_AUV2) * Latitude Start: 11.861670 * Longitude Start: -117.034000 * Latitude End: 11.844170 * Longitude End: -117.056830 * Date/Time Start: 2015-03-21T18:11:00 * Date/Time End: 2015-03-22T09:40:00 * Location: German prospective mining area (German PA) * Campaign: SO239 * Basis: Sonne_2 * Method/Device: Autonomous underwater vehicle (AUV) * Comment: Recovery: SO239_22-1
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1LATITUDELatitudeSchoening, TimmGeocode
2LONGITUDELongitudeSchoening, TimmGeocode
3ELEVATIONElevationm a.s.l.Schoening, TimmGeocode
4DEPTH, sediment/rockDepthmSchoening, TimmGeocode
5AreaAream2Schoening, Timm
6Number of photosPhoto#Schoening, Timmcontributing photos
7NodulesNodules%Schoening, Timmseafloor coverage by nodules
8NodulesNodules#Schoening, Timm
9Nodules, sizeNodules sizecm2Schoening, Timmmedian nodule size
10Standard deviationStd dev±Schoening, Timmsize of nodules
11SortingSortSchoening, Timm
12SkewnessSkewSchoening, Timm
Size:
3321592 data points

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