Results of nodule detection along AUV track SO239_115-1_AUV9 (Abyss_175) during SONNE cruise SO239

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).

本数据集的图像由GEOMAR旗下自主水下航行器（Autonomous Underwater Vehicle, AUV）"Abyss"搭载的DeepSurvey相机采集获取。结核轮廓由CoMoNoD算法勾勒完成，详见相关参考文献。结果文件以单次AUV下潜任务为单位生成。面积小于5平方厘米（cm²）或大于707平方厘米（cm²）的结核检测结果均予以剔除。丰度统计以每平方米为单位开展计算，并同样以每平方米为单位完成网格化处理。针对重叠图像，已应用最大池化（max-pooling）操作选取结果文件中记录的数值。渲染生成的地图中的像素值与ASCI文件中记载的单位一一对应：结核中位尺寸单位为平方厘米（cm²），结核数量单位为每平方米（m⁻²），覆盖百分比单位为%；而分选性、偏度及像素贡献度均无单位。