Results 41 to 50 of about 92,051 (340)

Bathymetric Data Requirements for Operational Coastal Erosion Forecasting Using XBeach

open access: yesJournal of Marine Science and Engineering, 2021
There is an increasing interest in the broad-scale implementation of coastal erosion early warning systems (EWS) with the goal of enhancing community preparedness to extreme coastal storm wave events.
Nashwan Matheen   +5 more
doaj   +1 more source

Reconnaissance surveying of Bechevin Bay, AK using satellite-derived bathymetry [PDF]

open access: yes, 2015
Recently, a remote sensing study has been conducted over Bechevin Bay Channel, Alaska as part of a collaboration project between NOAA and the U.S. Coast Guard (USCG).
Gonsalves, Michael   +4 more
core   +1 more source

UBathy: a new approach for bathymetric inversion from video imagery [PDF]

open access: yes, 2019
A new approach to infer the bathymetry from coastal video monitoring systems is presented. The methodology uses principal component analysis of the Hilbert transform of video images to obtain the components of the wave propagation field and their ...
Calvete Manrique, Daniel   +4 more
core   +2 more sources

Observations of River Topography and Flow Around Bridges [PDF]

open access: yes, 2009
This investigation was motivated by the amount of river, estuarine, and coastal infrastructure that is susceptible to extreme wave and flooding events. The high velocities and resulting shear stresses associated with high flow velocities are capable of ...
Lippmann, Thomas C.
core   +1 more source

Very Shallow Water Bathymetry Retrieval from Hyperspectral Imagery at the Virginia Coast Reserve (VCR\u2707) Multi-Sensor Campaign [PDF]

open access: yes, 2008
A number of institutions, including the Naval Research Laboratory (NRL), have developed look up tables for remote retrieval of bathymetry and in-water optical properties from hyperspectral imagery (HSI) [6].
Bachmann, Charles M   +14 more
core   +3 more sources

Combining multibeam and single beam echosounders for quantifying gas bubble release from the seafloor

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract Marine gas bubble release is a worldwide phenomenon that impacts the local marine ecosystem and contributes to carbon fluxes with respect to global warming. It is still challenging to assess gas flow for large seep areas (tens of km2), but recent advances in calibrating and processing multibeam echosounder (MBES) data make this problem ...
P. Urban   +2 more
wiley   +1 more source

High-accuracy shallow-water bathymetric method including reliability evaluation based on Sentinel-2 time-series images and ICESat-2 data

open access: yesFrontiers in Marine Science
Shallow-water bathymetric maps provide vital geographic information for various coastal and marine applications such as environmental management, engineering construction, oil and gas resource exploration, and ocean fisheries. Recently, satellite-derived
Yuan Le   +8 more
doaj   +1 more source

Automated Global Shallow Water Bathymetry Mapping Using Google Earth Engine

open access: yesRemote Sensing, 2021
Global shallow water bathymetry maps offer critical information to inform activities such as scientific research, environment protection, and marine transportation.
Jiwei Li   +6 more
doaj   +1 more source

Alumni of the First Ten Years of Nippon Foundation/GEBCO Postgraduate Certificate in Ocean Bathymetry Training Program [PDF]

open access: yes, 2014
The Nippon Foundation/GEBCO Training Programme is a twelve-month course leading to a Postgraduate Certificate in Ocean Bathymetry (PCOB). It is held at the University of New Hampshire, USA and is helping to develop a new generation of seafloor mappers ...
Wigley, Rochelle A.
core   +1 more source

The first ultra-high resolution Digital Terrain Model of the shallow-water sector around Lipari Island (Aeolian Islands, Italy) [PDF]

open access: yes, 2015
Very high resolution bathymetric map obtained through multibeam echosounders data are crucial to generate accurate Digital Terrain Models from which the morphological setting of active volcanic areas can be analyzed in detail. Here we show and discuss
Anzidei, M   +5 more
core   +2 more sources

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