Morphology and multifractal features of a guyot in specific topographic vicinity in the Caroline Ridge,West Pacific
文献类型：CNKI期刊论文
| 作者 | Yu GAN; Xiaochuan MA; Zhendong LUAN; Jun YAN |
| 发表日期 | 2021-09-15 |
| 出处 | Journal of Oceanology and Limnology
 |
| 关键词 | guyot morphology multifractal detrended fluctuation analysis(MFDFA) Caroline Ridge West Pacific Ocean |
| 英文摘要 | Massive seamounts have been surveyed and documented in the last decades.However,the morphologies of seamounts are usually described in qualitative manners,yet few quantitative detections have been carried out.Here,based on the high-re solution multi-beam bathymetric data,we report a recentlysurveyed guy ot on the Caroline Ridge in the West Pacific,and the large-scale volcanic structures and smallscale erosive-depositional landforms in the guyot area have been identified.The multifractal features of the guyot are characterized for the first time by applying multifractal detrended fluctuation analysis on the surveyed bathymetric data.The results indicate that the multifractal spectrum parameters of the seafloor have strong spatial dependency on the fluctuations of local landforms.Both small-and large-scale components contribute to the degree of asymmetry of the multifractal spectrum(B),while the fluctuations of B are mostly attributed to the changes in small-scale roughness.The maximum singularity strength(α_0) correlates well with the roughness of large-scale landforms and likely reflects the large-scale topographic irregularity.Comparing to traditional roughness parameters or monofractal exponents,multifractal spectra are able to depict not only the multiscale characteristics of submarine landforms,but also the spatial variations of scaling behaviors.Although more comparative works are required for various seamounts,we hope this study,as a case of quantifying geomorphological characters and multiscale behaviors of seamounts,can encourage further studies on seamounts concerning geomorphological processes,ocean bottom circulations,and seamount ecosystems. |
| 文献子类 | CNKI期刊论文 |
| 资助机构 | Supported by the Senior User Project of R/V Kexue (No.KEXUE2018G11) ; the Science and Technology Basic Resources Investigation Program of China (No.2017FY100801) ; the Open Fund of the Key Laboratory of Marine Geology and Environment,Chinese Academy of Sciences (No.MGE2018KG02) |
| 卷 | v.39期:05页:9-22 |
| 语种 | 英文; |
| 分类号 | P714 |
| ISSN号 | 2096-5508 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/187655]  |
| 专题 | 中国科学院海洋研究所 |
| 作者单位 | 1.LaboratoryforMarineGeology,PilotNationalLaboratoryforMarineScienceandTechnology(Qingdao) 2.CenterforOceanMega-Science,ChineseAcademyofSciences 3.CASKeyLaboratoryofMarineGeologyandEnvironment,InstituteofOceanology,ChineseAcademyofSciences |
| 推荐引用方式 GB/T 7714 | Yu GAN,Xiaochuan MA,Zhendong LUAN,et al. Morphology and multifractal features of a guyot in specific topographic vicinity in the Caroline Ridge,West Pacific. 2021. |
入库方式： OAI收割
来源：海洋研究所
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