Results of nodule detection along AUV track SO239_65-1_AUV6 (Abyss_172) 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的‘深渊号’自主水下航行器（Autonomous Underwater Vehicle，AUV）搭载的DeepSurvey相机采集。结核边界由CoMoNoD算法勾勒划定，详见相关参考文献。结果文件按单次AUV下潜任务生成并计算。面积小于5平方厘米（cm²）或大于707平方厘米（cm²）的结核检测结果将被剔除。丰度统计以每平方米（m²）为单位进行计算，同时也以相同单位完成网格化处理。针对存在重叠的图像，采用最大池化（max-pooling）方法选取结果文件中记录的对应数值。渲染后地图的像素值与ASCI文件中记录的单位保持一致：结核中位尺寸单位为平方厘米（cm²），结核计数单位为每平方米（m⁻²），覆盖率单位为百分比（%）；排序、偏度及像素贡献度均为无量纲量。