#Cartographica sinica license

A new arc-chord ratio (ACR) rugosity index for quantifying three-dimensional landscape structural complexity. Washington, DC: Naval Research Laboratory, 483–488ĭu Preez C. Characteristics of the two-dimensional spectrum of roughness on a seamount. Cham: Springer, 333–347Ĭzarnecki M F, Bergin J M. In: Micallef A, Krastel S, Savini A, eds. Geochemistry, Geophysics, Geosystems, 4(6): 1048, doi: Ĭasalbore D. Automatic processing of high-rate, high-density multibeam echosounder data. Geomorphology, 137(1): 5–26, doi: Ĭalder B R, Mayer L A. Geospatial technologies and digital geomorphological mapping: Concepts, issues and research. Geochemistry International, 48(5): 423–445, doi: īishop M P, James L A, Shroder J F Jr, et al. Geochemical zoning in ferromanganese crusts of Ita-MaiTai Guyot. ICES Journal of Marine Science, 65(6): 1004–1011, doi: Īsavin A M, Kubrakova I V, Mel’nikov M E, et al. Acoustic seabed classification: current practice and future directions. The coverage of local crests on the seamount is ∼1 000 km 2, and the local crests on the peak and flanks of the guyots may be the areas where thick and continuous plate-like CRCs are likely to occur.Īnderson J T, Van Holliday D, Kloser R, et al. Additionally, landslide masses can be observed at the bottom of these slopes. “Radial” mountain ridges have developed on the eastern side, while large-scale gravitational landslides have developed on the western and southern flanks. Furthermore, the classification of the terrain and geological analysis indicated that the Weijia Guyot has a large flat summit, with local crests at the southern summit, whereas most of the guyot flanks were covered by gentle slopes.

The classification revealed four first-order terrain units (e.g., flat, crest, slope, and depression) and eleven second-order terrain units (e.g., local crests, depressions on crests, gentle slopes, crests on slopes, and local depressions, etc.). Based on the DBM construted by bathymetirc data, broad- and fine-scale bathymetric position indices were utilized for quantitative classification of the terrain units of the Jiaxie Guyots on multiple scales.

#Cartographica sinica license

Our study used an EM122 multibeam echosounder to retrieve high-resolution bathymetry data in the CRCs contract license area of China, i.e., the Jiaxie Guyots in 20. The benthic terrain classification of seamounts can solve this problem, thereby, facilitating the rapid exploration of seamount CRCs. Thick, plate-like CRCs are known to form on the summit and slopes of seamounts at the 1 000–3 000 m depth, while the relationship between seamount topography and spatial distribution of CRCs remains unclear. For instance, cobalt-rich crusts (CRCs) are important mineral resources found on seamounts and guyots in the western Pacific Ocean. Given the advances in satellite altimetry and multibeam bathymetry, benthic terrain classification based on digital bathymetric models (DBMs) has been widely used for the mapping of benthic topographies.