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首页> 外文期刊>Water Science >Delineation and mapping of palaeochannels using remote sensing, geophysical, and sedimentological techniques: A comprehensive approach
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Delineation and mapping of palaeochannels using remote sensing, geophysical, and sedimentological techniques: A comprehensive approach

机译：使用遥感，地球物理和沉积学技术描绘和映射古希腊菜：综合方法

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摘要

Palaeochannels are remnants of rivers or stream channels that flowed in the past and have been currently filled or buried by younger fluviatile sediments. There are a number of techniques for detecting palaeochannels with each of them having its own intrinsic advantages and disadvantages. In the present study, apart from applying different approaches, the capabilities, and effectiveness of the approaches to locate and map palaeochannels are compared. Remote sensing-based approaches are comprised of high-resolution satellite datasets and a LiDAR-derived elevation map for displaying extensive drainage networks of surface feature channels hypothesized to be palaeochannels, palaeorivers, or palaeovalleys. Ground-penetrating radar (GPR) transects along with concurrent visual observations are ground-truthing field approaches and has proved to be one of the most appropriate and accurate methods for locating palaeochannels due to their capability to identify subsurface sedimentary stratigraphy innate to palaeochannels. Nevertheless, visual field observations for ground-truthing of prospective palaeochnnels either exhibiting only subtle alterations in desiccation or vegetation are considered a potent field approach. The present review work lays a strong emphasis on delineation and mapping of palaeochannels using remote sensing, geophysical, and sedimentological techniques to meet the sustainable groundwater development goals.
机译：Palaeochannels是河流或流渠道的残余，过去流动，目前填充或埋葬了年轻的氟毒物沉积物。有许多用于检测古人们的技术，其中每个具有其自身的内在优点和缺点。在本研究中，除了应用不同的方法，能够定位和绘制古人的方法的能力和有效性。基于遥感的方法包括高分辨率卫星数据集和LIDAR推导的升降图，用于显示假设古人的表面特征频道的广泛排水网络，成为Palaeochannels，Palaeoriver或Palaeovalleys。接地雷达（GPR）横切以及并发的视觉观察是地面跟踪场方法，并且已被证明是由于其能力识别PalaeocheNels的地下沉积地层先天生先生而定位PalaeoChannels的最合适和准确的方法之一。尽管如此，对未来古草氏植物的地面特写的视野观察，即在干燥或植被中仅进行微妙的改变被认为是一种有效的场方法。本综述工作规定了使用遥感，地球物理和沉积学技术划分和绘图的划分和映射，以满足可持续地下水的发展目标。

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