Results 141 to 150 of about 11,277,587 (243)

Lakes Amplify Carbon Emissions Relative to Downstream Export in Aquatic Networks

Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract Inland waters emit and export large quantities of carbon (C), and the balance between emission and export determines the role of inland waters in the global C cycle. Modeling studies of stream‐lake networks suggest that C emission‐to‐export ratios (emission:export) are higher in lake‐rich networks with longer network residence times (NRT), yet
F. Alriksson, G. Rocher‐Ros, M. Klaus, C. Gudasz, V. Hazuková, D. Vachon, L. E. Polvi, M. Rosvall, J. Karlsson   +8 more
wiley   +1 more source

Global Evidence for Off‐Axis Flexural Modification of Abyssal Hill Faults at Mid‐Ocean Ridges

Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract Young oceanic lithosphere flexes as axial topography decays across mid‐ocean ridge shoulders, yet this deformation has been quantified at only a few segments, leaving its global expression poorly constrained. We analyzed 50 across‐axis bathymetric profiles from 21 regions spanning slow to fast spreading rates, identified 1,201 abyssal‐hill ...
Ran Li, Zhonglan Liu, Shuming Feng, Teng Peng, Yuan Wang   +4 more
wiley   +1 more source

ECNet: Efficient Convolutional Networks for Side Scan Sonar Image Segmentation. [PDF]

Sensors (Basel), 2019
Wu M, Wang Q, Rigall E, Li K, Zhu W, He B, Yan T.   +6 more
europepmc   +1 more source

Calibration and mosaicing of forward-scan sonar DIDSON images

, 2012
DIDSON(Dual-frequency identification sonar),a new generation of acoustic video cameras, is applied to research and detect the underwater environment in this paper.
Xu YY(徐元玉), Jin, Wenjun, Chen JB(陈金波), Xie SR(谢少荣), Luo J(罗均)   +4 more
core  

Sonar image interpretation and modelling

, 1996
The problem addressed is that of providing a model-based system to interpret sonar data from an autonomous or remotely controlled vehicle instrumentation, to aid navigation, improve sea floor mapping techniques, identify objects, simulate acoustic images
Bell, Judith M., Clarke, Stuart J., Russell, George T., Holt, Patrik O B   +3 more
core  

Adaptive Beamforming for Active Sonar Imaging.

, 2012
As of today, sonar imaging is the most effective means of documenting the subsea environment. Existing sonar imaging systems generally rely on conventional beamforming methods to form the image. While conventional beamformers are robust and simple, they leave many of the challenges of sonar imaging unresolved.
openaire   +2 more sources

Seabed characterization with multi-band interferometric sonar

, 2020
Mapping of the seabed is important for numerous applications, including the detection of buried objects such as cables, pipelines, unexploded ordnance (UXO), off-shore engineering, and soil remediation.
Beckers, A.L.D., Vossen, R. van, Mulders, I,, Duijster, A.J., Burg, D.W. van der, Sande, J.J.M. van de   +5 more
core  

Detection of submarine pipeline and cable targets based on depth feature of high resolution sonar image. [PDF]

PLoS One
Liu D, Jin Z, Chen J, Xu Z.
europepmc   +1 more source

Anti-submarine warfare with continuously active sonar

, 2011
Existing surveillance sonar systems for anti-submarine warfare (ASW) use a pulsed sonar deployed at a low duty cycle. Continuously active sonar (CAS) is of special interest since the technique could provide better detection performance than conventional ...
Vossen, R. van, Spek, E. van der, Beerens, S.P.   +2 more
core  

Sonar image denoising based on clustering and Bayesian sparse coding. [PDF]

PLoS One
Xing C, Bao D, Huang T, Meng Y.
europepmc   +1 more source