Results 21 to 30 of about 85,904 (293)

Variational assimilation of surface wave data for bathymetry reconstruction. Part I: algorithm and test cases

open access: yesTellus: Series A, Dynamic Meteorology and Oceanography, 2021
Accurate mapping of ocean bathymetry is needed for effective modelling of ocean dynamics, such as tsunami prediction. Available bathymetry data does not always provide the resolution to model such nonlinear waves accurately, and collection of accurate ...
R. A. Khan, N. K.-R. Kevlahan
doaj   +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

Sidescan Only Neural Bathymetry from Large-Scale Survey

open access: yesSensors, 2022
Sidescan sonar is a small and low-cost sensor that can be mounted on most unmanned underwater vehicles (UUVs) and unmanned surface vehicles (USVs).
Yiping Xie, Nils Bore, John Folkesson
doaj   +1 more source

Research on bathymetry estimation by Worldview-2 based with the semi-analytical model [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015
South Sea Islands of China are far away from the mainland, the reefs takes more than 95% of south sea, and most reefs scatter over interested dispute sensitive area.
L. Sheng   +4 more
doaj   +1 more source

Evaluating Multispectral Imagery and Lidar Data for Vegetation Classification: A Comparative Assessment of UASs and Traditional Field Methods to Support Coastal Restoration Monitoring

open access: yesRemote Sensing
There is growing interest in uncrewed aircraft system (UAS) technology to supplement coastal restoration monitoring, yet it’s unclear how UAS data products compare to traditional field monitoring data that are fundamental to restoration programs. In this
Molly K. Reif   +4 more
doaj   +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

Coastal Bathymetry Estimation from Sentinel-2 Satellite Imagery: Comparing Deep Learning and Physics-Based Approaches

open access: yesRemote Sensing, 2022
The ability to monitor the evolution of the coastal zone over time is an important factor in coastal knowledge, development, planning, risk mitigation, and overall coastal zone management.
Mahmoud Al Najar   +7 more
doaj   +1 more source

Dynamics of wind-driven upwelling and relaxation between Monterey Bay and Point Arena: Local-, regional-, and gyre-scale controls [PDF]

open access: yes, 2009
In north and central California, equatorward winds drive equatorward flows and the upwelling of cold dense water over the shelf during the midspring and summer upwelling season.
Dever, Edward P, Pringle, James M.
core   +2 more sources

Improved bathymetry estimates beneath Amundsen Sea ice shelves using a Markov Chain Monte Carlo gravity inversion (GravMCMC, version 1) [PDF]

open access: yesGeoscientific Model Development
Bathymetry beneath ice shelves in West Antarctica plays an important role in the delivery and circulation of warm waters to the ice-shelf bottom and grounding line.
M. J. Field   +4 more
doaj   +1 more source

Generating synthetic fjord bathymetry for coastal Greenland [PDF]

open access: yesThe Cryosphere, 2017
Bed topography is a critical boundary for the numerical modelling of ice sheets and ice–ocean interactions. A persistent issue with existing topography products for the bed of the Greenland Ice Sheet and surrounding sea floor is the poor ...
C. N. Williams   +9 more
doaj   +1 more source

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