Shallow Water Bathymetry(浅水测深)研究综述
Shallow Water Bathymetry 浅水测深 - Optical satellite remote sensing (RS) is a time- and cost-effective approach for shallow-water bathymetry over large areas. [1] Empirical methods for estimating shallow-water bathymetry using passive multispectral satellite imagery are robust and globally applicable, in theory, but they require copious local measurements of water depth for algorithm calibration. [2] Shallow water bathymetry is important for nautical navigation to avoid stranding, as well as for the scientific simulation of high tide and high waves in coastal areas. [3] Shallow water bathymetry is essential information for coastal science and nautical navigation. [4] This study addresses the mapping of shallow water bathymetry with high spatial resolution and accuracy by comparing three remote sensing (RS) approaches: one based on echo sounding (active RS) and two on photogrammetry (passive RS): bathymetric Structure from Motion (SfM) and optical modelling. [5] Traditional in situ measurements with topographic equipment provide spatially sparse datasets and they could not map in detail the spatial variability in wave and current fields, the shallow water bathymetry and the beach morphology. [6] The objective of this paper is to explore the feasibility of shallow water bathymetry using satellite two-media photogrammetry. [7] In coastal areas, the concentrations and the optical properties of the water components have a large spatial and temporal variability, due to river discharges and meteo-marine conditions, such as wind, wave and current, and their interaction with shallow water bathymetry. [8]光学卫星遥感 (RS) 是一种用于大面积浅水测深的时间和成本效益高的方法。 [1] 使用被动多光谱卫星图像估计浅水测深的经验方法在理论上是稳健且全球适用的，但它们需要大量的水深局部测量以进行算法校准。 [2] 浅水测深对于航海航行避免搁浅以及科学模拟沿海地区的涨潮和大浪具有重要意义。 [3] 浅水测深是海岸科学和航海导航的重要信息。 [4] 本研究通过比较三种遥感 (RS) 方法来解决具有高空间分辨率和精度的浅水测深制图问题：一种基于回声探测（主动 RS）和两种基于摄影测量（被动 RS）：运动测深结构 (SfM)和光学建模。 [5] 传统的地形设备原位测量提供空间稀疏的数据集，无法详细绘制波浪和水流场的空间变化、浅水测深和海滩形态。 [6] 本文的目的是探讨利用卫星二介质摄影测量进行浅水测深的可行性。 [7] 在沿海地区，由于河流流量和海洋气象条件（如风、波浪和水流）及其与浅水测深的相互作用，水成分的浓度和光学特性具有很大的时空变异性。 [8]