Results 71 to 80 of about 3,001 (262)

The Contribution of Multispectral Satellite Image to Shallow Water Bathymetry Mapping on the Coast of Misano Adriatico, Italy

Journal of Marine Science and Engineering, 2020
The results of absolute satellite-derived bathymetry (SDB) are presented in the current study. A comparative analysis was conducted on empirical methods in order to explore the potential of SDB in shallow water on the coast of Misano, Italy.
Anselme Muzirafuti, Giovanni Barreca, Antonio Crupi, Giancarlo Faina, Diego Paltrinieri, Stefania Lanza, Giovanni Randazzo   +6 more
doaj   +1 more source

Consideration of Level of Confidence within Multi-Approach Satellite-Derived Bathymetry [PDF]

ISPRS International Journal of Geo-Information, 2019
The Canadian Hydrographic Service (CHS) publishes nautical charts covering all Canadian waters. Through projects with the Canadian Space Agency, CHS has been investigating remote sensing techniques to support hydrographic applications. One challenge CHS has encountered relates to quantifying its confidence in remote sensing products.
René Chénier, Ryan Ahola, Mesha Sagram, Marc-André Faucher, Yask Shelat   +4 more
openaire   +2 more sources

Submerged geomorphic record of Quaternary palaeoshorelines: terraces and clinothems along a shelf‐edge in the Žirje Archipelago, Adriatic Sea

Boreas, EarlyView.
Numerous studies have shown that during the Quaternary there were substantial fluctuations in sea level in response to glacial–interglacial climate variability, reaching lowstand positions up to 134 m below the present sea level (b.s.l.). These fluctuations have had a strong influence on the morphology of shallow shelf seas, which preserve evidence of ...
Ozren Hasan, Dea Brunović, Natalia Smrkulj, Maria Geraga, Dimitris Christodoulou, Nikolina Ilijanić, George Papatheodorou, Slobodan Miko   +7 more
wiley   +1 more source

Authoring Terrestrial Planets with Diffusion Models

Computer Graphics Forum, EarlyView.
Abstract To support the design and subsequent generation of terrestrial planets for use in the creative media, we propose a solution that employs a generative model trained on satellite data from planetary bodies with a defined solid surface, such as the Earth and Mars.
Oliver Borg, James Gain, Éric Guérin, Adrien Peytavie, Marie‐Paule Cani, Eric Galin, Guillaume Cordonnier   +6 more
wiley   +1 more source

Topology‐based Visual Analysis of Hydrothermal Plumes

Computer Graphics Forum, EarlyView.
Abstract Hydrothermal plumes are turbulent structures of intense heat and mineral smoke that rise and disperse into the deep ocean. Existing models generally characterize these systems as a single axisymmetric plume originating from a point source. However, this assumption breaks down in weakly venting, spatially distributed systems, where low‐flux ...
Adhitya Kamakshidasan, Tushar Jain, Karen Bemis, Valerio Pascucci   +3 more
wiley   +1 more source

Integrating fossil data in ecological niche models to improve predictions of future habitat of Caribbean corals

Conservation Biology, EarlyView.
Abstract Ecological niche models (ENMs) are used to assess the abiotic preferences of species by linking their occurrences to the environmental conditions in which they live. We developed a fossil‐informed ENM framework that integrates mid‐Holocene and modern occurrences to test niche stability and reconstruct abiotic niche characteristics for four ...
Claire. M. Williams, Fernando Machado‐Stredel, Rowan C. Martindale, Corinne E. Myers   +3 more
wiley   +1 more source

Shallow Water Bathymetry Estimation with Landsat 8 Imagery: Band Ratio Application Method in Karimunjawa Waters, Central Jawa, Indonesia

Journal of Geospatial Information Science and Engineering
Bathymetric data are essential for producing water-depth maps and supporting navigational safety. The Karimunjawa Islands were selected as the study area because they are characterized by shallow waters, complex coastal ecosystems, and active marine ...
Luhur Moekti Prayogo, Abdul Basith
doaj   +1 more source

A Hybrid Bio-Optical Transformation for Satellite Bathymetry Modeling Using Sentinel-2 Imagery

Remote Sensing, 2019
The article presents a new hybrid bio-optical transformation (HBT) method for the rapid modelling of bathymetry in coastal areas. The proposed approach exploits free-of-charge multispectral images and their processing by applying limited manpower and ...
Athanasios K. Mavraeidopoulos, Emmanouil Oikonomou, Athanasios Palikaris, Serafeim Poulos   +3 more
doaj   +1 more source

Lack of Compliance in Gillnet Fisheries Regulations Increases Risk to a Vulnerable Species

Fisheries Management and Ecology, EarlyView.
ABSTRACT This article presents an analysis of regulatory compliance in a Brazilian gillnet fishery, based on Vessel Monitoring System (VMS) tracking data. Satellite transmissions records, interpreted as proxies for gillnet haulings events, were analyzed and classified using a neural network to assess the level of compliance of the gillnet fleet.
Rodrigo Claudino dos Santos, Eduardo R. Secchi, Joanna Turner, Luis Gustavo Cardoso   +3 more
wiley   +1 more source

UAV-Derived Multispectral Bathymetry

, 2020
Bathymetry is considered an important component in marine applications as several coastal erosion monitoring and engineering projects are carried out in this field.
Lorenzo Rossi, Pelliccia, Filippo, Filippo Pelliccia, Rossi, Lorenzo, Mammi, Irene, Irene Mammi   +5 more
core   +1 more source