Results 1 to 10 of about 2,067 (261)
Bathymetry estimation for coastal regions using self-attention [PDF]
Scientific ReportsBathymetric mapping of the coastal area is essential for coastal development and management. However, conventional bathymetric measurement in coastal areas is resource-expensive and under many constraints.
Xiaoxiong Zhang, Maryam R. Al Shehhi
doaj +4 more sources
Estimation of Coastal Bathymetry Using Wavelets [PDF]
Journal of Marine Science and Engineering, 2020 When waves propagate in coastal areas at depths lower than one half the wavelength, they exhibit a different signature at the sea surface and the observed wavelength pattern enables inferring bathymetries.
Diogo Santos +3 more
doaj +2 more sources
Addressing Challenges in Port Depth Analysis: Integrating Machine Learning and Spatial Information for Accurate Remote Sensing of Turbid Waters [PDF]
SensorsBathymetry estimation is essential for various applications in port management, navigation safety, marine engineering, and environmental monitoring.
Xin Li, Zhongqiang Wu, Wei Shen
doaj +2 more sources
Nearshore Bathymetry Estimation Using Synthetic Aperture Radar (SAR) Imagery
Canadian Journal of Remote Sensing, 2021 A method to estimate nearshore bathymetry using SAR imagery is presented in this paper. A Fast-Fourier Transform (FFT) and Wavelet hybrid method is proposed to analyze the wave spectra and calculate the wavelength of the long swell waves from SAR ...
Yue Ma +4 more
doaj +2 more sources
Cubesats Allow High Spatiotemporal Estimates of Satellite-Derived Bathymetry [PDF]
Remote Sensing, 2019 High spatial and temporal resolution satellite remote sensing estimates are the silver bullet for monitoring of coastal marine areas globally. From 2000, when the first commercial satellite platforms appeared, offering high spatial resolution data, the ...
Dimitris Poursanidis +3 more
doaj +3 more sources
GIScience & Remote Sensing, 2023 Accurate bathymetric information is an important foundation for marine resource development and nearshore ecological protection. Existing empirical algorithms can estimate water depth from high resolution images with the aid of ground truth bathymetry ...
Xiaohan Zhang +3 more
doaj +1 more source
Estimating runup with limited bathymetry
Coastal Engineering, 2022 Abstract Wave runup estimates are used in erosion and overtopping models, and in coastal structure design. However, runup depends on often incompletely known surf and swash bathymetry. The many existing runup parameterizations characterizing bathymetry with only the foreshore (swash zone) beach slope β f are necessarily of limited ...
Athina M.Z. Lange +4 more
openaire +1 more source
Research on bathymetry estimation by Worldview-2 based with the semi-analytical model [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015 South Sea Islands of China are far away from the mainland, the reefs takes more than 95% of south sea, and most reefs scatter over interested dispute sensitive area.
L. Sheng +4 more
doaj +1 more source
The Influence of Camera Calibration on Nearshore Bathymetry Estimation from UAV Videos
Remote Sensing, 2021 Measuring the nearshore bathymetry is critical in coastal management and morphodynamic studies. The recent advent of Unmanned Aerial Vehicles (UAVs), in combination with coastal video monitoring techniques, allows for an alternative and low cost ...
Gonzalo Simarro +6 more
doaj +1 more source
Error estimation for gridded bathymetry [PDF]
2015 IEEE Applied Imagery Pattern Recognition Workshop (AIPR), 2015 Estimating the uncertainty or predicted accuracy of gridded products that are generated from historical bathymetric survey data is of high interest to the maritime navigation community. Surface interpolation methods used for gridding survey data in practice are well established. This paper investigates error estimation methods for gridded bathymetry in
Peter Doucette +5 more
openaire +1 more source