Results 11 to 20 of about 3,001 (262)

Satellite derived bathymetry using deep learning [PDF]

open access: yesMachine Learning, 2021
Coastal development and urban planning are facing different issues including natural disasters and extreme storm events. The ability to track and forecast the evolution of the physical characteristics of coastal areas over time is an important factor in coastal development, risk mitigation and overall coastal zone management.
Al Najar, Mahmoud   +5 more
openaire   +3 more sources

An Approach to Minimize Atmospheric Correction Error and Improve Physics-Based Satellite-Derived Bathymetry in a Coastal Environment [PDF]

open access: yesRemote Sensing, 2020
Physics-based radiative transfer model (RTM) inversion methods have been developed and implemented for satellite-derived bathymetry (SDB); however, precise atmospheric correction (AC) is required for robust bathymetry retrieval.
Christopher O. Ilori, Anders Knudby
doaj   +4 more sources

A VGGNet-Based Method for Refined Bathymetry from Satellite Altimetry to Reduce Errors

open access: yesRemote Sensing, 2022
Only approximately 20% of the global seafloor topography has been finely modeled. The rest either lacks data or its data are not accurate enough to meet practical requirements.
Xiaolun Chen   +7 more
doaj   +2 more sources

Automated classification of valid and invalid satellite derived bathymetry with random forest

open access: yesInternational Journal of Applied Earth Observations and Geoinformation
Recent decades have seen rapid growth in algorithms and workflows for generating bathymetry from multispectral satellite imagery, with the output typically referred to as satellite derived bathymetry (SDB).
Matthew B. Sharr   +2 more
doaj   +3 more sources

A COMBINED COLOR AND WAVE-BASED APPROACH TO SATELLITE DERIVED BATHYMETRY USING DEEP LEARNING [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022
Knowledge of the evolution of the littoral zone over time is paramount for coastal science and coastal zone management. However, traditional bathymetric surveys using echo-sounding techniques are unsuitable for large-scale applications due to a variety ...
M. Al Najar   +9 more
doaj   +2 more sources

Confronting turbidity, the major challenge for satellite-derived coastal bathymetry

open access: yesScience of The Total Environment, 2023
Monitoring the complex seafloor morphology that drives the functioning of shallow coastal ecosystems is vital for assessing marine activities. Satellite-derived bathymetry (SDB) can provide a crucial dataset for creating the bathymetry maps needed to understand hazards and impacts produced by climate change in vulnerable coastal zones. SDB is effective
Caballero, Isabel, Stumpf, Richard P.
openaire   +4 more sources

Satellite-Derived Bathymetry of an Inland Reservoir in India

open access: yes, 2023
<p>Estimating depth of water columns in reservoirs, referred to as bathymetry, is an important task in water resource management. Satellite-derived bathymetry (SDB), where depths of water columns are estimated using satellite data, is an emerging and promising technique, especially for shallow-water scenarios.
M. Selva Balan   +2 more
openaire   +2 more sources

Improved Bathymetry Estimation Using Satellite Altimetry-Derived Gravity Anomalies and Machine Learning in the East Sea [PDF]

open access: yesJournal of Marine Science and Engineering
This study aims to improve the accuracy of bathymetry predicted by gravity-geologic method (GGM) using the optimal machine learning model selected from machine learning techniques.
Kwang Bae Kim, Jisung Kim, Hong Sik Yun
doaj   +2 more sources

Preliminary Results of Satellite-Derived Nearshore Bathymetry

open access: yesIV Conference on Geomatics Engineering
This article presents the preliminary results of a study on satellite-derived bathymetry. The purpose of this research is to explore the use of remote sensing and optical imagery for mapping the depth of coastal waters. This study uses empirical models to estimate the water depth based on the optical properties of the water column.
Ausiàs Roch-Talens   +2 more
openaire   +3 more sources

Performance of Haiyang-2 Derived Gravity Field Products in Bathymetry Inversion

open access: yesRemote Sensing, 2022
Haiyang-2A (HY-2A), China’s first altimetry satellite mission, was launched more than ten years ago, and its follow-up satellites, HY-2B, HY-2C, and HY-2D, have also been launched.
Xiaoyun Wan   +3 more
doaj   +2 more sources

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