Geomorphology Map of the Australasian Seafloor

A geomorphology map of the Australasian seafloor was created as a Geographic Information System layer for the study described in Torres, Leigh G., et al. "From exploitation to conservation: habitat models using whaling data predict distribution patterns and threat exposure of an endangered whale." Diversity and Distributions 19.9 (2013): 1138-1152.The geomorphology map was generated using parameters derived from the General Bathymetric Chart of the World (GEBCO 2008, http://www.gebco.net/), with 30 arc-second grid resolution.Geomorphology features were delineated manually with a consistent spatial resolution. Each feature was assigned a primary attribute of depth zone and a secondary attribute of morphological feature. The following feature classes are defined: shelf, slope, rise, plain, valley, trench, trough, basin, hills(s), mountains(s), ridges(s), plateau, seamount.Further information (methods, definitions and an illustration of the geomorphology map) is provided in Appendix S2 of the paper which is available for download (see related URLs).

本数据集为托雷斯（Torres, Leigh G.）等人在《从开发到保护：利用捕鲸数据构建栖息地模型以预测濒危鲸类的分布格局与威胁暴露风险》（载于《生物多样性与分布（Diversity and Distributions）》2013年第19卷第9期，第1138-1152页）的研究中制作的澳大拉西亚海底地貌图，以地理信息系统（Geographic Information System, GIS）图层形式呈现。该海底地貌图基于世界海洋测深图（General Bathymetric Chart of the World，GEBCO 2008，网址：http://www.gebco.net/）衍生的参数生成，网格分辨率为30弧秒。海底地貌要素以统一的空间分辨率进行人工勾绘，每个要素均被赋予两项属性：一级属性为深度带，二级属性为地貌类型。本次研究定义了如下地貌要素类别：陆架、陆坡、陆隆、海底平原、海底谷、海沟、海槽、海盆、丘陵、山地、海脊、海底高原、海山。该论文的附录S2中提供了该海底地貌图的更多信息，包括制图方法、要素定义及示意图，该附录可通过相关网址下载获取。