Results 11 to 20 of about 6,465,054 (251)

A cyclo-stationary complex multichannel wiener filter for the prediction of wind speed and direction [PDF]

, 2013
This paper develops a linear predictor for application to wind speed and direction forecasting in time and across different sites. The wind speed and direction are modelled via the magnitude and phase of a complex-valued time-series.
Dowell, Jethro, Weiss, Stephan, Hill, David, Weiss, S., Infield, David   +4 more
core   +5 more sources

Quantifying wind and pressure effects on trace gas fluxes across the soil–atmosphere interface [PDF]

Biogeosciences, 2015
Large uncertainties persist in estimates of soil–atmosphere exchange of important trace gases. One significant source of uncertainty is the combined effect of wind and pressure on these fluxes. Wind and pressure effects are mediated by surface topography:
K. R. Redeker, A. J. Baird, Y. A. Teh
doaj   +1 more source

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

, 1989
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., Windt, H., Dinniman, Michael S., A. GRIFFA, Watts, D. Randolph, Meinen, Christopher S., ZAMBIANCHI, Enrico, Chong, Michel, Dunkhorst, W., Lohmann, Martin, Chave, Alan D., Booth, Donald, Webb, A. R., Tracey, Karen L., A. J. MARIANO, Richman, James, Roget, E., Eshbaugh, JV, Bais, A. F., Ding, Li, Frasier, SJ, Kift, R., Chin, T. M, Blumthaler, M., Holländer, W., Haza, A. C, Luther, Douglas S., Klinck, John M., Lödding, H., Bousquet, Olivier, Farmer, David, Gobbi, G. P., T. ZGKMEN, Mariano, A. J, Herbers, T.H.C., Zrnic, D. S., Smith, J. N., Bacic, S., Bringi, V. N., Oleskiw, M., Zrnic, Dúsan S., Seinfeld, J. H., Bozier, KE, Davies, F, Nenes, Athanasios, Rowland, John, Flagan, R. C., Sanderson, Brian, Chuang, P. Y., Collier, CG, Oldenburg, J., Strapp, J. W., Brassington, Gary, Pearson, GN, Miller, D., Lilie, L., Leone, G., Vukovic, Z., O'Reilly, W C, Emery, E., Goldhirsh, Julius, Seymour, R J, Balakrishnan, N., Guza, R T, Chandrasekar, V., Ide, R., Carol Johnson, B., Vömel, H., Mönnich, E., Shiotani, M., Codina, Bernat, Fujiwara, M., Clark, Dennis K., Heinrich, G., Lohou, Fabienne, Clark, C. D., Weppner, J., Jacoby Koaly, Sandra, Brown, Steven W., Saunders, Clive, Kim, Kyung-Eak, Morel, A, Hasebe, Fumio, May, P., Saltzman, E. S., Reid, I., Fujiwara, Masatomo, Kapustin, V., Hasebe, F., Horinouchi, Takeshi, Soula, Serge, Lothon, Marie, Johnson, B. Carol, Shin D. -B., Lothon, M., Girard-Ardhuin, F., Clarke, A., Jacoby-Koaly, Sandra, Güsten, H., Tsuda, Toshitaka, Maring, H., Heo, Bok-Haeng, Gaussiat, Nicolas, Battaglia A., Beckers, Jean-Marie, Druilhet, Aimé, Vomel, Holger, Féral, Laurent, Smedley, Andrew; id_orcid, Jacoby-Koaly, S., Oltmans, Samuel J., Bech, Joan, Kummerow C., Covert, D. S., Shiotani, Masato, Lorente, Jeroni, Hynes, A. J., Williams C., Bénech, B., Lucas, C., Howell, S., Ruppert, Paul W., Kohsiek, W., Oltmans, S. J., Jung, Eun-Sil, Brooks, IM, Feinholz, Michael E., Girard-Ardhuin, Fanny, Illingworth, Anthony, J, Lataitis, R., Yarbrough, Mark, Habauzit, Catherine, Bénech, Bruno, Illingworth, Anthony,, Bruin, H.A.R., de, Barnes, J. E., Campistron, Bernard, Lykke, Keith R., Nolle, M., Sauvageot, Henri, Bebbington, D., Druilhet, A., Campuzano-Jost, P., Rixen, M., Hooker, Sb, Beckers, J.M., de Bruin, H.A.R.   +211 more
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Algorithm for sea surface wind retrieval from TerraSAR-X and TanDEM-X data [PDF]

, 2014
A Geophysical Model Function (GMF), denoted XMOD2, is developed to retrieve sea surface wind field from Xband TerraSAR-X/TanDEM-X (TS-X/TD-X) data. In contrast to the previously developed XMOD1, XMOD2 consists of a nonlinear GMF, and thus, it depicts ...
Li, Xiao Ming, Lehner, Susanne
core   +1 more source

Modelling and control of a variable-speed switched reluctance generator based wind turbine [PDF]

, 2007
This paper studies the system modelling and control aspects of switched reluctance generator (SRG) based variable speed wind turbines. A control system is implemented to provide proper operation of the SRG as well as power tracking capabilities for ...
McSwiggan, D., Littler, Timothy; id_orcid, D. McSwiggan, Xu, L., T. Littler, Littler, T., L. Xu   +6 more
core   +4 more sources

Wind speed forecasting using Singular Systems Analysis [PDF]

, 2013
We report on a method to predict wind speeds up to 24 hours ahead using a technique originating in Dynamical Systems and Chaos theory using a signal processing technique known as Singular Systems Analysis.The method predicts wind speeds based on a set of
Fruh, Wolf-Gerrit; id_orcid, C. Skittides, Skittides, Christina, W.-G. Früh   +3 more
core   +1 more source

Deterministic prediction of surface wind speed variations [PDF]

Annales Geophysicae, 2014
Accurate prediction of wind speed is an important aspect of various tasks related to wind energy management such as wind turbine predictive control and wind power scheduling.
G. V. Drisya, D. C. Kiplangat, D. C. Kiplangat, K. Asokan, K. Satheesh Kumar   +4 more
doaj   +1 more source

Joint segmentation of wind speed and direction using a hierarchical model [PDF]

, 2007
The problem of detecting changes in wind speed and direction is considered. Bayesian priors, with various degrees of certainty, are used to represent relationships between the two time series.
Dobigeon, Nicolas, Tourneret, Jean-Yves
core   +1 more source

Study on Windproof Effect of Gauze Sand Barriers on Mobile Sand Dunes in Ulan Buh Desert

Shuitu baochi yanjiu, 2021
In order to select suitable gauze sand barriers for control mobile sand, the effect of the gauze sand barrier on sand fixation was studied, and it's the impact on the characteristics of near-surface wind speed was evaluated. The 2 m × 2 m, 4 m × 4 m, 6 m
YAN Deren, YUAN Limin, HUANG Haiguang, HU Xiaolong, YANG Zhiguo   +4 more
doaj  

Influence of Topography and the Underlying Surface of the Bohai Sea on Wind and Gust Forecasts

Earth and Space Science, 2023
Accurate gust forecasts can reduce potential threats to people's lives and properties, but we need more reliable forecasting methods and models. A recent development is the meteorologically stratified gust factor (MSGF) model, which is more accurate in ...
Ke Wang, Xinyu Lyu, Jing Huang, Meng Luo, Fei Xu   +4 more
doaj   +1 more source