A Data Set of Sea Surface Stereo Images to Resolve Space-Time Wave Fields

Stereo imaging observations of the sea surface elevation provide unique field data to investigate geometry and dynamics of oceanic waves. Typically, this technique allows to retrieve the 4-D ocean topography (3-D space + time) at high frequency (up to 15-20 Hz) over a sea surface region of area ~10^4 m^2. Stereo data fill the existing wide gap between sea surface elevation time-measurements, like the local observation provided by wave buoys, and large-scale ocean observations by satellites. The analysis of stereo images provides a direct measurement of the wavefield without the need of any linear-wave theory assumption, so it is particularly interesting to investigate the nonlinearities of the wave field, wave-current interaction, rogue waves, wave-wave interaction, wave breaking, air-sea interaction, and potentially other processes not explored yet. In this context, this open data set aims at providing the oceanographic community, for the first time, valuable stereo measurements collected in different seas and wave conditions to invite the ocean-wave scientific community to continue exploring these data and to contribute to a better understanding of the nature of the sea surface dynamics.

海面高程立体成像观测可为海浪几何形态与动力学特性研究提供独特的原位实测数据。通常而言，该技术可在面积约10^4平方米的海面区域内，以高达15~20Hz的高频率获取四维海洋地形（三维空间+时间维度）。立体成像数据填补了当前海面高程时序观测（如波浪浮标提供的局地观测）与卫星大规模海洋观测之间的广泛数据空白。立体图像分析可直接测量波场，无需依赖任何线性波浪理论假设，因此特别适用于研究波场非线性特性、波-流相互作用、畸形波、波-波相互作用、波浪破碎、气-海相互作用，以及其他尚未被探索的潜在过程。在此背景下，本开放数据集首次为海洋学领域提供了在不同海域与海浪条件下采集的宝贵立体测量数据，旨在邀请海浪研究学界进一步挖掘这些数据，助力人们更深入地理解海面动力学的本质。

搜集汇总

背景与挑战

背景概述

该数据集是一个海洋表面立体图像集合，用于解析时空波场，通过立体成像技术提供高频率、大面积的海面高程数据，填补了传统浮标与卫星观测之间的空白。数据集包含全球多个海域在不同海况下的原始记录和校准文件，支持无需线性波理论假设的直接波场测量，适用于研究海浪非线性特性、波-流相互作用等海洋动力学过程。