Results 61 to 70 of about 22,981 (256)

SATELLITE BATHYMETRY USE IN NUMERICAL MODELS OF OCEAN THERMAL STRESS

Gayana, 2004
Techniques for deriving estimated bathymetry from satellite data are well established; however, use of this product in complex terrains is limited.
S.F Heron, W.J Skirving
doaj  

Leveraging Commercial High-Resolution Multispectral Satellite and Multibeam Sonar Data to Estimate Bathymetry: The Case Study of the Caribbean Sea

Remote Sensing, 2019
The global coastal seascape offers a multitude of ecosystem functions and services to the natural and human-induced ecosystems. However, the current anthropogenic global warming above pre-industrial levels is inducing the degradation of seascape health ...
Samuel Pike, Dimosthenis Traganos, Dimitris Poursanidis, Jamie Williams, Katie Medcalf, Peter Reinartz, Nektarios Chrysoulakis   +6 more
doaj   +1 more source

The Development of A Rigorous Model for Bathymetric Mapping from Multispectral Satellite-Images

Remote Sensing, 2022
Models for bathymetry retrieval from multispectral images have not considered the errors caused by tidal fluctuation. A rigorous bathymetric model that considers the variation in tide height time series, including the tide height calculation and ...
Jiasheng Xu, Guoqing Zhou, Sikai Su, Qiaobo Cao, Zhou Tian   +4 more
doaj   +1 more source

Preliminary Results of Satellite-Derived Nearshore Bathymetry

IV 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, Josep Eliseu Pardo-Pascual, Jaime Almonacid-Caballer   +2 more
openaire   +2 more sources

Breaking down seagrass fragmentation in a marine heatwave impacted World Heritage Area

Remote Sensing in Ecology and Conservation, EarlyView.
Habitat fragmentation can exacerbate the impacts of habitat loss but is rarely quantified in marine environments. Using satellite‐derived habitat maps, we identify widespread seagrass fragmentation following a marine heatwave that contributed to a dramatic shift in seascape structure in the Shark Bay World Heritage Area.
Michael D. Taylor, Simone Strydom, Matthew W. Fraser, Ana M. M. Sequeira, Gary A. Kendrick   +4 more
wiley   +1 more source

Operational tsunami modelling with TsunAWI – recent developments and applications [PDF]

, 2013
In this article, the tsunami model TsunAWI (Alfred Wegener Institute) and its application for hindcasts, inundation studies, and the operation of the tsunami scenario repository for the Indonesian tsunami early warning system are presented.
Androsov, Alexey, Danilov, Sergey, Fuchs, Annika, Harig, Sven, Hiller, Wolfgang, Immerz, Antonia, Rakowsky, Natalja, Schröter, Jens   +7 more
core   +2 more sources

Comparing convolutional neural network and random forest for benthic habitat mapping in Apollo Marine Park

Remote Sensing in Ecology and Conservation, EarlyView.
A comparison of Convolutional Neural Network (CNN) and Random Forest (RF) model predictions of benthic habitats within Apollo Marine Park. The CNN (left) and RF (right) classification maps show the spatial distribution of three habitat types: high energy circalittoral rock with seabed‐covering sponges, low complexity circalittoral rock with non‐crowded
Henry Simmons, Dang Nguyen, Benjamin Misiuk, Daniel Ierodiaconou, Sunil Gupta, Oli Dalby, Mary Young   +6 more
wiley   +1 more source

Evaluating methods for high‐resolution, national‐scale seagrass mapping in Google Earth Engine

Remote Sensing in Ecology and Conservation, EarlyView.
Marine habitat mapping using satellite imagery can provide baseline and monitoring data across large spatial scales and in remote locations globally. This study evaluates how key methodological choices influence the accuracy of open‐source (for non‐commercial use), cloud‐based satellite mapping workflows for seagrass meadows in the Maldives.
Matthew Floyd, Holly K. East, Andrew J. Suggitt   +2 more
wiley   +1 more source

Nautical Chart Adequacy Evaluation Using Publicly-Available Data [PDF]

, 2015
The International Hydrographic Office (IHO) C-55 publication communicates the need to improve the collection, quality and availability of hydrographic data world-wide, while also monitoring and rectifying possible deficiencies and shortcomings that are ...
Freire, Ricardo, Klemm, Anthony, Nyberg, John, Pe\u27eri, Shachak, Smith, Shep M, LT   +4 more
core   +1 more source

Morphology and tectonics of the Mid-Atlantic Ridge, 7°–12°S

, 2003
We present swath bathymetric, gravity, and magnetic data from the Mid-Atlantic Ridge between the Ascension and the Bode Verde fracture zones, where significant ridge–hot spot interaction has been inferred.
Bijwaard, Bonatti, Bougault, Bourdon, Brozena, Brozena, Bruguier, Cande, Cande, Carlson, Chen, Davies, Delaney, DeMets, Dosso, Fontignie, Graham, Grindlay, Hanan, Heirtzler, Hey, Ito, Ito, J. M. Brozena, Johnson, Kincaid, Klingelhoefer, Kuo, LaBrecque, Macdonald, Malamud, Michael, Miller, Minshull, Minshull, N. J. Bruguier, Naar, Niu, O'Connor, Parker, Parker, Parsons, Phipps Morgan, Reid, Sandwell, Schilling, Schilling, Shen, Shirey, Sleep, Small, T. A. Minshull, Tucholke, van Andel, Verma, Vogt, Wolfe   +56 more
core   +1 more source