《国际泥沙研究》杂志刊登“希腊帕帕斯湖浅水环境下河床的形态多样性”

作  者：G. PAPATHEODOROU， P. AVRAMIDIS， E. FAKIRIS， D. CHRISTODOULOU， N. KONTOPOULOS

刊  物：《国际泥沙研究》，2012年，27版，1-17页，

关键词：沉积物分析，侧扫声纳，粒径，声学分类，地面实际调查

摘  要：在希腊西部帕帕斯湖近岸带浅水水域（<3.0m），利用声学分类系统和沉积物趋势分析方法来研究河床变化和生物多样性。

以100千赫侧扫声纳系统模拟收集数据，进行数字化后分为6个声学类别，应用声学分类开发研究系统（SonarClass，TargAn）。通过对声学类别与实际沉积物粒径、湖泊形态对比。结果显示，六种声学类型与各自的沉积物类型或者植被类型对应良好。因此，各类声学分布的测量结果可以用作分析湖泊沉积物的分布。再通过粒径分析还可以确定三个主要的来沙途径和可能的主导风向。得到泥沙主要通过泻湖南部的一个支流汇入。在不同的时间、空间尺度下，通过对声学和沉积学的数据分析，可以更好的理解和分析沉淀的产生，因为沉积形态和生物化学过程是在不同的时间和空间尺度下进行的，所以进行此类分析有益于沉积学和生物多样性的研究。

Bed diversity in the shallow water environment of Pappas lagoon in Greece

Authors: G. PAPATHEODOROU， P. AVRAMIDIS， E. FAKIRIS， D. CHRISTODOULOU， N. KONTOPOULOS

Journal: 《International Journal of Sediment Research》，27(2012)1-17，

Key words: Trend sediment analysis, Side scan sonar, Grain size, Acoustic classification, Ground truthing

Abstract: Acoustic classification systems and the Sediment Trend Analysis method were used to identify and map the bed diversity in a very shallow(<3．0m)，coastal lagoon，Pappas lagoon，Western Greece． Analogue acoustic data．collected by means of a 100 kHz side scan sonar system．were digitized and classified into six acoustic classes using recently developed acoustic classification systems (SonarClass，TargAn)．By comparing the acoustic classes to ground truth data consisting of sediment grain size and visual inspection of the lagoon．bed．it is demonstrated that the six acoustic classes correlate well with the predominant surface sediment types and vegetation．Thus the spatial distribution of the classes can be considered to represent the spatial pattern of the sedimentary assemblages of the lagoon．The grain size fiend analysis identified three dominant sediment pathways and directional订ends which could be related to the predominant wind direction．the sediment influx through the inlets and the sediment supply from a small stream in the southern part of the lagoon．The integration of acoustic and sedimentological data together with advanced data processing systems leads to a better understanding of the sedimentary，morphological and biological processes in a shallow lagoon in different spatial and temporal scales and will therefore be beneficial to both sedimentological and biotic-diversity studies．

原文链接：http://d.g.wanfangdata.com.cn/Periodical_gjnsyj-e201201001.aspx