Results 31 to 40 of about 56,657 (315)

High-resolution bathymetry by deep-learning-based image superresolution.

open access: yesPLoS ONE, 2020
Seafloor mapping to create bathymetric charts of the oceans is important for various applications. However, making high-resolution bathymetric charts requires measuring underwater depths at many points in sea areas, and thus, is time-consuming and costly.
Motoharu Sonogashira   +2 more
doaj   +1 more source

Understanding the Impact of Bathymetric Changes in the German Bight on Coastal Hydrodynamics: One Step Toward Realistic Morphodynamic Modeling

open access: yesFrontiers in Marine Science, 2021
The hydrodynamic response to morphodynamic variability in the coastal areas of the German Bight was analyzed via numerical experiments using time-referenced bathymetric data for the period 1982–2012.
Benjamin Jacob, Emil V. Stanev
doaj   +1 more source

Deriving Highly Accurate Shallow Water Bathymetry From Sentinel-2 and ICESat-2 Datasets by a Multitemporal Stacking Method

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
Empirical models have been widely used to retrieve shallow water bathymetry from multispectral/hyperspectral satellite imagery. In traditional studies on deriving the topography and monitoring its temporal changes, a single date satellite image ...
Nan Xu   +5 more
doaj   +1 more source

Gridded bathymetric data

open access: yesEos, Transactions American Geophysical Union, 1982
A gridded bathymetric data base for the coastal United States, including Alaska and Hawaii, is now available for purchase from the National Geophysical Data Center (NGDC). The data base was compiled by NGDC, in cooperation with the U.S. Geological Survey, from original data supplied by the National Ocean Survey (NOS).
openaire   +1 more source

Use of remotely-derived bathymetry for modelling biomass in marine environments [PDF]

open access: yes, 2013
The paper presents results on the influence of geometric attributes of satellite-derived raster bathymetric data, namely the General Bathymetric Charts of the Oceans, on spatial statistical modelling of marine biomass. In the initial experiment, both the
Godbold, Jasmin A.   +4 more
core   +2 more sources

UTILIZATION OF MULTIBEAM ECHOSOUNDER DATA FOR BATHYMETRY MAPPING: EVALUATION WITH INTERNATIONAL STANDARD

open access: yesJGE
Bathymetric mapping is crucial for understanding seabed conditions, especially in maritime countries like Indonesia. This study evaluates the quality of bathymetric data acquired using Multibeam Echosounder (MBES) in Jakarta waters. The acquired data was
Zulfikar Adlan Nadzir   +1 more
doaj   +1 more source

Changes in Imja Tsho in the Mount Everest Region of Nepal [PDF]

open access: yes, 2014
Imja Tsho, located in the Sagarmatha ( Everest) National Park of Nepal, is one of the most studied and rapidly growing lakes in the Himalayan range. Compared with previous studies, the results of our sonar bathymetric survey conducted in September of ...
Byers, A. C.   +3 more
core   +2 more sources

Spatial Analysis of Bathymetric Data from UAV Photogrammetry and ALS LiDAR: Shallow-Water Depth Estimation and Shoreline Extraction

open access: yesRemote Sensing
The shoreline and seabed topography are key components of the coastal zone and are essential for hydrographic surveys, shoreline process modelling, and coastal infrastructure management.
Oktawia Specht
doaj   +1 more source

A geomorphological overview of glacial landforms on the Icelandic continental shelf [PDF]

open access: yes, 2009
The availability of a bathymetric database that covers about 80% of the Icelandic shelf has made it possible to produce a geomorphological map of the glacial landforms.
Clark, C.D., Spagnolo, M.
core   +1 more source

Assessing the Ability to Quantify Bathymetric Change over Time Using Solely Satellite-Based Measurements

open access: yesRemote Sensing, 2022
Coastal regions are undergoing rapid change, due to natural and anthropogenic forcings. A current constraint in understanding and modeling these changes is the lack of multi-temporal bathymetric data, or recursive observations.
Joan Herrmann   +3 more
doaj   +1 more source

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