Results 31 to 40 of about 115,694 (298)

Accuracy Evaluation of CFOSAT SWIM L2 Products Based on NDBC Buoy and Jason-3 Altimeter Data

Remote Sensing, 2021
Chinese-French Oceanography Satellite (CFOSAT), the first satellite which can observe global ocean wave and wind synchronously, was successfully launched On 29 October 2018. The CFOSAT carries SWIM that can observe ocean wave on a global scale.
Guozhou Liang, Jungang Yang, Jichao Wang
doaj   +1 more source

Clustering-Based Global Forecasting Models for Significant Wave Height Prediction

, 2023
Accurate wave predictions safeguard maritime operations, coastal communities, and marine ecosystems. Significant wave height, an average height of the highest one-third of the waves recorded during the sampling period, plays a crucial role in analyzing ...
Chandrala, Rohini
core  

Sea state and rain: a second take on dual-frequency altimetry [PDF]

, 2004
TOPEX and Jason were the first two dual-frequency altimeters in space, with both operating at Ku- and C-band. Each thus gives two measurements of the normalized backscatter, sigma0, (from which wind speed is calculated) and two estimates of wave height ...
Quartly, G.D.
core   +1 more source

Significant Wave Height Forecasting Based on EMD-TimesNet Networks

Journal of Marine Science and Engineering
Significant Wave Height (SWH) is a crucial parameter in ocean wave dynamics, impacting coastal safety, maritime transportation, and meteorological research.
Zhuxin Ouyang, Yaoting Gao, Xuefeng Zhang, Xiangyu Wu, Dianjun Zhang   +4 more
doaj   +1 more source

Application of neural networks and support vector machine for significant wave height prediction

Oceanologia, 2017
For the purposes of planning and operation of maritime activities, information about wave height dynamics is of great importance. In the paper, real-time prediction of significant wave heights for the following 0.5–5.5 h is provided, using information ...
Jadran Berbić, Eva Ocvirk, Dalibor Carević, Goran Lončar   +3 more
doaj   +1 more source

Ocean wave mapping from ERS SAR images in the presence of swell and wind-waves

Scientia Marina, 2004
We present a method for estimating the significant wave height of ocean waves (SWH) in coastal zones from satellite SAR images and using the value of the width of the spectral azimuthal cutoff.
Stéphan Rousseau, Philippe Forget
doaj   +1 more source

Extremal Prediction of Significant Wave Height

Coastal Engineering 1978, 1978
The most generally used procedure for estimating the extremal distribution of ge_o physical variates consists in obtaining a sample of extreme values (for instance a number of annual maxima) and fitting to them a distribution function. One of the main problems - involved in this procedure is the choice of the type of distribution adequate in each case.
openaire   +2 more sources

A two-parameter wind speed algorithm for Ku-band altimeters [PDF]

, 2002
Globally distributed crossovers of altimeter and scatterometer observations clearly demonstrate that ocean altimeter backscatter correlates with both the near-surface wind speed and the sea state.
Moat, B.I., Escobedo, João Francisco, Vandemark, D., Dijk, A., van, Lefevre, Fabien, Gommenginger, C.P., Roget, Elena, Tabary, Pierre, Kelly, P., G. P. Gommenginger, Pan, NX, Berry, D.I., Piera, Jaume, Barnaba, F., Kazantzidis, A., Gobbi, G.P., Gourrion, J., Webb, Ann, Machado, A. J., J. Gourrion, Schallhart, B., Schmitt, R., von Hünerbein, S, Cipollini, P., van Dijk, A., F. H. Lyard, Escobedo, João Francisco [UNESP], Challenor, P.G., Pascal, R.W., D. Vandemark, Junkermann, W., Blumthaler, M, E. J. O. Schrama, Chapron, B., Visbeck, Martin, Petitdidier, Monique, B. Chapron, Schreder, J., Liberti, G. L., P. G. Challenor, Schrama, Ernest J. O., Bailey, S., Thiel, S., C. Le Provost, Kift, R.; id_orcid, Catalán, Jordi, Topaloglou, C., Piera Fernàndez, Jaume, Wolff, Eric W., Lyard, Florent, Kylling, A., Danielsen, T., Srokosz, M.A., Bais, A.F., Ponte, R. M., S. Bailey, Catalán Aguilà, Jordi, Yelland, M.J., F. Lefèvre, Le Provost, C., Rankin, Andrew M., Richner, H, M. A. Srokosz, Cromwell, D., de Oliveira, A. P., Misslbeck, M.   +65 more
core   +1 more source

Application of decision tree techniques for the Prediction of Significant Wave Height

, 2007
Significant wave height estimates are necessary for many applications in coastal and offshore engineering and therefore various prediction models have been proposed in the literature for this purpose.
Mahjoobi, J, A. Etemad Shahidi, Shahidi, A Etemad, J. Mahjoobi   +3 more
core   +1 more source

Robust Spot Melting by 3D Spot Arrangements in Electron Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
This work proposes an approach to replace separately melted contours for spot melting in electron beam powder fusion. Adapting the spot arrangements close to the contour combined with stacking yields a comparable surface quality without the inherent challenges of separate contours, as demonstrated, by electron optical images and roughness measurements.
Tobias Kupfer, Lukas Spano, Sebastian Pohl, Carolin Körner, Matthias Markl   +4 more
wiley   +1 more source