Results 71 to 80 of about 394 (161)

Validation of ICESat-2 ATLAS Bathymetry and Analysis of ATLAS’s Bathymetric Mapping Performance

open access: yesRemote Sensing, 2019
NASA’s Ice, Cloud, and Land Elevation Satellite-2 (ICESat-2) was launched in September, 2018. The satellite carries a single instrument, ATLAS (Advanced Topographic Laser Altimeter System), a green wavelength, photon-counting lidar, enabling global ...
Christopher E. Parrish   +5 more
doaj   +1 more source

Neural networks for the generation of sea bed models using airborne lidar bathymetry data

open access: yesGeodesy and Cartography, 2016
Various sectors of the economy such as transport and renewable energy have shown great interest in sea bed models. The required measurements are usually carried out by ship-based echo sounding, but this method is quite expensive.
Kogut Tomasz   +2 more
doaj   +1 more source

Classification of Underwater Sediments in Lab Based on LiDAR Full-Waveform Data

open access: yesJournal of Marine Science and Engineering
The classification of shallow sea sediments based on airborne LiDAR bathymetry represents a significant advancement in marine science and engineering.
Libin Du   +5 more
doaj   +1 more source

Erosion - deposition evaluation through hybrid DTMs derived by LiDAR and colour bathymetry: the case study of the Brenta, Piave and Tagliamento rivers

open access: yesJournal of Agricultural Engineering, 2013
Risk management and flood protection are frequently assessed through geo-morphometric evaluations resulting by floods events. If we aim at elevation models with high resolutions and covering large areas, airborne LiDAR surveys can represent a good ...
J. Moretto   +4 more
doaj   +1 more source

Bathymetry retrieval from optical images with spatially distributed support vector machines

open access: yesGIScience & Remote Sensing, 2019
This paper presents a spatially distributed support vector machine (SVM) system for estimating shallow water bathymetry from optical satellite images. Unlike the traditional global models that make predictions from a unified global model for the entire ...
Lei Wang   +3 more
doaj   +1 more source

Assessing ICESat-2’s Capability for Global Mangrove Forest Canopy Measurements

open access: yesRemote Sensing
NASA’s ICESat-2 mission offers potential for coastal monitoring by combining its land/vegetation (ATL08) and nearshore bathymetry (ATL24) products. However, the combined performance of these products in environments where both canopy and bathymetry are ...
Megan Renshaw   +3 more
doaj   +1 more source

A satellite-derived bathymetry method combining depth invariant index and adaptive logarithmic ratio: A case study in the Xisha Islands without in-situ measurements

open access: yesInternational Journal of Applied Earth Observations and Geoinformation
Accurate bathymetric data is crucial for various aspects such as marine resource exploitation and marine ecological conservation. Currently, satellite-derived bathymetry (SDB) based on empirical and physical models has been widely utilized in ...
Xiangtao Zhao   +5 more
doaj   +1 more source

A high-precision fusion bathymetry of multi-channel waveform curvature for bathymetric LiDAR systems

open access: yesInternational Journal of Applied Earth Observations and Geoinformation
Airborne LiDAR bathymetry (ALB) system is an attractive and efficient method for nearshore bathymetry and underwater topography mapping. To ensure and improve the measurement accuracy and reliability in various water environments, different receivers ...
Lin Wu   +5 more
doaj   +1 more source

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