Study on the Influence of Waves on Coastal Diffusion Using Image Analysis
Study on the Influence of Waves on Coastal Diffusion Using Image Analysis
复制标题
利用图像分析研究波浪对海岸扩散的影响
DOI：
10.1023/a:1001131304881
复制
发表时间：
1997
影响因子：
2.4
通讯作者：
J. Redondo
中科院分区：
文献类型：
--
作者：
M. Bezerra;M. Diez;C. Medeiros;Andrés Rodríguez;E. Bahia;A. Sánchez;J. Redondo
一系列新的图像分析技术已被用来研究冲浪区流体动力学利用最近的数字处理的图像从视频记录的海岸附近的海面的优势。图像分析的使用允许的波场，表面环流和混合在碎波区的空间和时间特性的估计。在非常不同的海洋条件下，在离海岸线不同距离处释放的染料斑点的分散被用来测量表面涡扩散率。初步的一组实地测量是在测试方法的埃布罗三角洲进行的。在西班牙的维拉诺瓦和巴西的累西腓进行了进一步的实验。
A series of novel image analysis techniques have been used to study surf-zone hydrodynamics taking advantage of recent advances in digital processing of images taken from video recordings of the sea surface near the coast. The use of image analysis allows the estimation of both spatial and temporal characteristics of wave fields, surface circulation and mixing in the surf zone. The dispersion of blobs of dye released at different distances from the coastline under very different sea conditions is used to measure surface eddy diffusivities. A preliminary set of field measurements were done in the Ebro Delta where the methodology was tested. Further experiments have been performed at Vilanova, Spain and Recife, Brazil.