Results 271 to 280 of about 116,854 (310)

Analysis of sentinel-2 image time series for enhancing satellite-derived bathymetry

Marine Geodesy
Fine bathymetry is essential for oceanographic and geomorphological research. Traditional methods like shipborne sonar and airborne LiDAR have limitations in spatial coverage and high costs.
Qizhi Zhuang, Shanlin Gao, Yitong Liu, Zixuan Lu, Hengyong Chu, Jianbo Xiao, Jian Cheng, Qixin Hu, Sensen Chu   +8 more
semanticscholar   +1 more source

Does Hyperspectral Imagery Improve Satellite-Derived Bathymetry? A Case Study from a Posidonia oceanica-Dominated Mediterranean Region

Remote Sensing
Coastal bathymetric mapping is essential for marine conservation, navigation, and environmental management. Satellite-derived bathymetry (SDB) is a cost-effective solution to mapping bathymetry over large shallow areas. However, traditional multispectral
Rosemary Jones, Anders Knudby
semanticscholar   +1 more source

Satellite Derived Bathymetry in Hard-To-Reach Areas: Leveraging ICESat-2 and Sentinel-2 with ML and DL Techniques

SPE Conference at Oman Petroleum & Energy Show
Satellite-Derived Bathymetry (SDB) is crucial for mapping underwater topography in regions where traditional bathymetric surveys are challenging due to logistical, environmental, or financial constraints.
N. Supekar, Madhavi Dewalkar, A. Deshpande, S. Peddada   +3 more
semanticscholar   +1 more source

Application of Backpropagation (BP) Neural Networks for Satellite-Derived Bathymetry Using Sentinel-2 Data: Accurate Depth Estimation in Coastal Environments

Marine Geodesy
Accurate bathymetry estimation is essential for coastal management, resource exploration, and ecological conservation. However, traditional depth measurement methods are often time-consuming, expensive, and logistically challenging, particularly for ...
Che Heng, Guohao Liu, Zhongqiang Wu
semanticscholar   +1 more source

Improving Satellite-Derived Bathymetry in Complex Coastal Environments: A Generalised Linear Model and Multi-Temporal Sentinel-2 Approach

Remote Sensing
Satellite-derived bathymetry (SDB) enhances monitoring capabilities in the context of global change and provides a cost-effective alternative to traditional in situ methods.
X. Monteys, Tea Isler, Gema Casal, C. Gallagher   +3 more
semanticscholar   +1 more source

Physics-based satellite-derived bathymetry

Coastal and inland shallow-water environments are increasingly exposed to climate-change-related impacts such as sea-level rise, coastal erosion and ecosystem degradation. Reliable numerical hydrodynamic and morphological models are essential for assessing these impacts and supporting coastal adaptation strategies [1].
Annika Klein, C. Gabriel David
openaire   +1 more source

Satellite-derived bathymetry to improve bathymetric map of Indonesia

Sixth International Symposium on LAPAN-IPB Satellite, 2019
Satellite imagery along with image processing techniques are essential tools for bathymetry retrieval since they are relatively inexpensive in term of time and budget in comparison to the conventional bathymetry survey. Approximately, 1126 bathymetric maps in various scales were produced by Badan Informasi Geospasial (BIG) covering Indonesia’s oceans ...
Ratna Sari Dewi, Prayudha Hartanto, Nadya Oktaviani, Intan Pujawati, Nursugi Nursugi, Sandi Aditya   +5 more
openaire   +1 more source

Optimising Satellite-Derived Bathymetry Using Optical Imagery over the Adelaide Metropolitan Coast

Remote Sensing
This study enhances the accuracy of optical satellite-derived bathymetric datasets in a shallow, mixed-bottom, low-wave-energy coastal environment by identifying the optimal combination of input satellite imagery, spectral bands, and empirical derivation
Joram Downes, David Bruce, G. Miot da Silva, P. Hesp   +3 more
semanticscholar   +1 more source

SCBMLD: a photon signal extraction method for ICESat-2 satellite-derived bathymetry.

Optics Express
The integration of satellite remote sensing imagery with ICESat-2 photons offers an effective, economical, and large-scale approach for mapping shallow seabed topography. However, ICESat-2 photon data are vulnerable to noise from sea surface fluctuations,
Ningning Li, Mi Wang, Bo Yang, Jun Pan, Y. Pi, Zhongli Fan   +5 more
semanticscholar   +1 more source

Global Coastal Satellite-Derived Bathymetry

  Coastal zones are home to about 40% of the world's population and include key infrastructure and ecosystems. These regions are crucial for economic activities like maritime transport or the deployment of offshore renewable energy, are vital for human settlement and contain unique habitats.
Mona Reithmeier, Knut Hartmann, Etiënne Kras, George Spoelstra   +3 more
openaire   +1 more source