Results 31 to 40 of about 3,001 (262)

Improving Satellite-derived Bathymetry [PDF]

, 2016
Bathymetry is traditionally acquired using singlebeam or multibeam echosounders. This method produces accurate depth measurements along transects but is constrained by operating cost and an inability to survey in very shallow waters. Airborne Lidar is able to produce accurate bathymetric information over clear waters at depths up to 70m, but can be ...
Cahalane, Conor
openaire   +2 more sources

Coastal Bathymetry Estimation from Sentinel-2 Satellite Imagery: Comparing Deep Learning and Physics-Based Approaches

Remote Sensing, 2022
The ability to monitor the evolution of the coastal zone over time is an important factor in coastal knowledge, development, planning, risk mitigation, and overall coastal zone management.
Mahmoud Al Najar, Rachid Benshila, Youssra El Bennioui, Grégoire Thoumyre, Rafael Almar, Erwin W. J. Bergsma, Jean-Marc Delvit, Dennis G. Wilson   +7 more
doaj   +1 more source

Gradient Boosting and Linear Regression for Estimating Coastal Bathymetry Based on Sentinel-2 Images

Remote Sensing, 2022
Thousands of vessels travel around the world every day, making the safety, efficiency, and optimization of marine transportation essential. Therefore, the knowledge of bathymetry is crucial for a variety of maritime applications, such as shipping and ...
Fahim Abdul Gafoor, Maryam R. Al-Shehhi, Chung-Suk Cho, Hosni Ghedira   +3 more
doaj   +1 more source

Improved Filtering of ICESat-2 Lidar Data for Nearshore Bathymetry Estimation Using Sentinel-2 Imagery

Remote Sensing, 2021
The accurate estimation of nearshore bathymetry is necessary for multiple aspects of coastal research and practices. The traditional shipborne single-beam/multi-beam echo sounders and Airborne Lidar bathymetry (ALB) have a high cost, are inefficient, and
Congshuang Xie, Peng Chen, Delu Pan, Chunyi Zhong, Zhenhua Zhang   +4 more
doaj   +1 more source

Investigating the Shallow-Water Bathymetric Capability of Zhuhai-1 Spaceborne Hyperspectral Images Based on ICESat-2 Data and Empirical Approaches: A Case Study in the South China Sea

Remote Sensing, 2022
Accurate bathymetric and topographical information is crucial for coastal and marine applications. In the past decades, owing to its low cost and high efficiency, satellite-derived bathymetry has been widely used to estimate the depth of shallow water in
Yuan Le, Mengzhi Hu, Yifu Chen, Qian Yan, Dongfang Zhang, Shuai Li, Xiaohan Zhang, Lizhe Wang   +7 more
doaj   +1 more source

SATELLITE DERIVED BATHYMETRY FOR MONITORING NEARSHORE DYNAMICS

Coastal Engineering Proceedings, 2023
Research on the physical, ecological, and environmental processes in the coastal zone traditionally rely on the availability of accurate seafloor topography (bathymetry) information. This information becomes increasingly important as coastal environments are under pressure by climate change and anthropogenic developments. Nonetheless, the bathymetry of
Etiënne Kras, Arjen Luijendijk, Gennadii Donchyts, Giorgio Santinelli, Jaap Langemeijer, Robyn Gwee, Antonio Moreno Rodenas   +6 more
openaire   +1 more source

Satellite-derived bathymetry in optically complex waters using a model inversion approach and Sentinel-2 data [PDF]

, 2020
This study presents an assessment of a model inversion approach to derive shallow water bathymetry in optically complex waters, with the aim of both understanding localised capability and contributing to the global evaluation of Sentinel-2 for coastal ...
Hedley, John D., Cahalane, Conor, Monteys, X, Monteys, Xavier, McCarthy, Tim, Hedley, J. D., Cahalane, C., McCarthy, T, Harris, P., Harris, Paul, Casal, G., Casal, Gema   +11 more
core   +1 more source

SaTSeaD: Satellite Triangulated Sea Depth Open-Source Bathymetry Module for NASA Ames Stereo Pipeline

Remote Sensing, 2023
We developed the first-ever bathymetric module for the NASA Ames Stereo Pipeline (ASP) open-source topographic software called Satellite Triangulated Sea Depth, or SaTSeaD, to derive nearshore bathymetry from stereo imagery.
Monica Palaseanu-Lovejoy, Oleg Alexandrov, Jeff Danielson, Curt Storlazzi   +3 more
doaj   +1 more source

The application of satellite derived bathymetry for coastline mapping

IOP Conference Series: Earth and Environmental Science, 2022
Abstract There is a gap in bathymetry data in shallow water due to the difficulty in measuring the depth. Meanwhile, to obtain an accurate datum-based coastline, sufficient depth and topography data are required. In the situation in which bathymetry data from the conventional method (sounding measurement) is limited, the bathymetry data ...
R S Dewi, I Sofian, null Suprajaka
openaire   +1 more source

A Sub-Bottom Type Adaption-Based Empirical Approach for Coastal Bathymetry Mapping Using Multispectral Satellite Imagery

Remote Sensing, 2023
Accurate bathymetric data in shallow water is of increasing importance for navigation safety, coastal management, and marine transportation. Satellite-derived bathymetry (SDB) is widely accepted as an effective alternative to conventional acoustic ...
Xue Ji, Yi Ma, Jingyu Zhang, Wenxue Xu, Yanhong Wang   +4 more
doaj   +1 more source