Results 41 to 50 of about 24,901,573 (306)

Assessing the Utility of Open-Access Bathymetric Data for Shipwreck Detection in the United States

The Heritage, 2020
Investigation of submerged cultural heritage is an important area of archeological focus. However, the expense of acquiring the necessary data to conduct studies of underwater landscapes is often prohibitive to many researchers. Within the United States,
Dylan S. Davis, Danielle C. Buffa, Amy C. Wrobleski   +2 more
semanticscholar   +1 more source

UTILIZATION OF MULTIBEAM ECHOSOUNDER DATA FOR BATHYMETRY MAPPING: EVALUATION WITH INTERNATIONAL STANDARD

JGE
Bathymetric mapping is crucial for understanding seabed conditions, especially in maritime countries like Indonesia. This study evaluates the quality of bathymetric data acquired using Multibeam Echosounder (MBES) in Jakarta waters. The acquired data was
Zulfikar Adlan Nadzir, Manson Brian Utama Munthe   +1 more
doaj   +1 more source

High-resolution bathymetry by deep-learning-based image superresolution.

PLoS ONE, 2020
Seafloor mapping to create bathymetric charts of the oceans is important for various applications. However, making high-resolution bathymetric charts requires measuring underwater depths at many points in sea areas, and thus, is time-consuming and costly.
Motoharu Sonogashira, Michihiro Shonai, Masaaki Iiyama   +2 more
doaj   +1 more source

Performance assessment of GEBCO_2023 gridded bathymetric data in selected shallow waters of Indian ocean using the seafloor from ICESat-2 photons

Marine Geophysical Research
Bathymetric data represents estimated seafloor topography and aids in understanding the intricacies of earth and ocean interaction processes. The General Bathymetric Chart of the Oceans (GEBCO) released the GEBCO_2023 gridded bathymetric data as an ...
D. Giribabu, Rohit Hari, J. Sharma, Koushik Ghosh, Niyati Padiyar, Aryan Sharma, A. Bera, S. K. Srivastav   +7 more
semanticscholar   +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
semanticscholar   +1 more source

Spatial Analysis of Bathymetric Data from UAV Photogrammetry and ALS LiDAR: Shallow-Water Depth Estimation and Shoreline Extraction

Remote Sensing
The shoreline and seabed topography are key components of the coastal zone and are essential for hydrographic surveys, shoreline process modelling, and coastal infrastructure management.
Oktawia Specht
doaj   +1 more source

Bathymetric data coverage and density from single-beam and multibeam echo sounding surveys using unmanned surface vehicles in shallow inland waters [PDF]

Journal of Water and Land Development
Hydrographic surveys must comply with the IHO S-44 standard. For the most stringent orders (Exclusive, Special, and 1a), 100% seafloor coverage is required, posing challenges in shallow waters near the 1 m isobath. Recent advancements in unmanned surface
Oktawia Specht
doaj   +1 more source

Deriving Highly Accurate Shallow Water Bathymetry From Sentinel-2 and ICESat-2 Datasets by a Multitemporal Stacking Method

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
Empirical models have been widely used to retrieve shallow water bathymetry from multispectral/hyperspectral satellite imagery. In traditional studies on deriving the topography and monitoring its temporal changes, a single date satellite image ...
Nan Xu, Xin Ma, Yue Ma, Pufan Zhao, Jian Yang, Xiao Hua Wang   +5 more
doaj   +1 more source

Analysis and Accuracy Assessment of a New Global Nearshore ICESat‐2 Bathymetric Data Product

Although designed primarily for cryospheric science objectives, NASA's ICESat‐2 satellite, which launched in 2018, quickly became recognized as the world's first spaceborne bathymetric lidar. Initially, there was no dedicated bathymetric data product for
Christopher E. Parrish, Lori A. Magruder, Jeff Perry, Matthew Holwill, J. Swinski, Keana Kief   +5 more
semanticscholar   +1 more source

Active Faults' Geometry in the Gulf of Aqaba, Southern Dead Sea Fault, Illuminated by Multibeam Bathymetric Data

Tectonics, 2020
Detailed knowledge of fault geometry is important for accurate seismic hazard assessment. The Gulf of Aqaba, which corresponds to the southern termination of the 1200‐km‐long Dead Sea fault system, remains one of the least known parts of this plate ...
Matthieu Ribot, Y. Klinger, S. Jónsson, U. Avşar, E. Pons‐Branchu, R. Matrau, Francis L. Mallon   +6 more
semanticscholar   +1 more source