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Thematische Bibliographien / Wind-tides

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Auswahl der wissenschaftlichen Literatur zum Thema „Wind-tides“

Autor: Grafiati

Veröffentlicht am 26. November 2023

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Zeitschriftenartikel zum Thema "Wind-tides"

1

Farrer, Lawrence A. „WIND TIDES ON LAKE OKEECHOBEE“. Coastal Engineering Proceedings 1, Nr. 6 (29.01.2011): 7. http://dx.doi.org/10.9753/icce.v6.7.

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Determination of wind tides and wave action is an essential step in the design of flood-control and navigation projects and of structures near large bodies of water which may be subjected to hurricane winds. In 1948, the Corps of Engineers initiated a program to collect wind-tide and wave data on Lake Okeechobee. Basic data collected and investigations made under that program have been published as a series of project bulletins, "Waves and Wind Tides in Inland Waters, Lake Okeechobee, Florida, and in a summary report, "Civil Works Investigation CW-167, Waves and Wind Tides in Shallow Lakes and Reservoirs." Data on wind velocities, wind tides, and waves have been collected under that program during six hurricanes and many minor storms. In this paper an attempt is made to summarize the results of the wind-tide studies and outline the procedure developed for computing wind tides on Lake Okeechobee.

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2

Tolman, Hendrick L. „PROPAGATION OF WIND WAVES ON TIDES“. Coastal Engineering Proceedings 1, Nr. 21 (29.01.1988): 36. http://dx.doi.org/10.9753/icce.v21.36.

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Effects of instationary depths and currents in tides on shelf seas on wind wave propagation are investigated using two numerical models in two academical situations representing shelf sea conditions. It is shown that changes in absolute frequency, which are induced by the instationarity of depth and current, are significant in contrast to what is usually assumed. If these changes are neglected large and unpredictable errors may occur in calculated changes of wavenumber and amplitude.

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3

Shang, Jiancheng, Jian Sun, Lei Tao, Yuanyi Li, Zhenhua Nie, Haiying Liu, Rui Chen und Dekui Yuan. „Combined Effect of Tides and Wind on Water Exchange in a Semi-Enclosed Shallow Sea“. Water 11, Nr. 9 (23.08.2019): 1762. http://dx.doi.org/10.3390/w11091762.

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The Bohai Sea is a semi-enclosed shallow sea in China, where the tides and wind are the dominant factors contributing to the water exchange with the Yellow Sea. However, existing studies on this water exchange primarily consider only the effect of tidal action, neglecting the contribution of wind. In this study, numerical models were used to simulate the hydrodynamic processes and tracer transport, with the consideration of both tides and wind. Based on the models, the two time scales, age and half-life, are applied to study the water exchange in the Bohai Sea quantitatively. The results show that the age and half-life decrease significantly when wind is included in the simulation, revealing that wind is an important contributor to the water exchange in such a semi-enclosed shallow sea. Under the combined forcing of tides and wind, the water transport in the Bohai Sea becomes clockwise, in contrast with the counterclockwise transport driven by the tides only. The seasonal-varying wind leads to a fluctuation of water exchange in an annual cycle, with the stronger water exchange in the northern (Liaodong Bay) and the western (Bohai Bay) regions of the Bohai Sea in winter and in the southern part (Laizhou Bay) in summer.

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4

Hagen, Jonas, Klemens Hocke, Gunter Stober, Simon Pfreundschuh, Axel Murk und Niklaus Kämpfer. „First measurements of tides in the stratosphere and lower mesosphere by ground-based Doppler microwave wind radiometry“. Atmospheric Chemistry and Physics 20, Nr. 4 (28.02.2020): 2367–86. http://dx.doi.org/10.5194/acp-20-2367-2020.

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Abstract. Atmospheric tides are important for vertical coupling in the atmosphere, from the stratosphere down to the troposphere and up to the thermosphere. They are planetary-scale gravity waves with well-known periods that are integer fractions of a day and can be observed in the temperature or wind fields in the atmosphere. Most lidar techniques and satellites measure atmospheric tides only in the temperature field and continuous measurements of the tides in the wind field of the stratosphere and lower mesosphere are rare, even though, with modern lidars, they would be feasible. In this study, we present measurements of the diurnal tide in the wind field in the stratosphere and lower mesosphere by ground-based microwave wind radiometry for two different campaigns in tropical and polar regions. Further, we compare our measurements to MERRA-2 reanalysis data. In the tri-monthly mean, we find a good correspondence in the amplitude and phase of the diurnal tide between measurements and reanalysis with the most important features of the diurnal tides represented in both data sets. When looking at shorter timescales, we find significant differences in the data sets. We make an attempt to examine these differences and discriminate between atmospheric variability and noise, and we present some hints for intermittent diurnal tides. We conclude that continuous ground-based observations of tides in the middle atmospheric wind field are feasible, and they deliver consistent results for the mean amplitude and phase of the diurnal tide in the tri-monthly mean. We further discuss the limitations in regards to short timescale observations of tides and the possibility to provide additional insight into middle atmospheric dynamics that is complementary to temperature observations and reanalysis data.

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5

Paugam, Caroline, Damien Sous, Vincent Rey und Samuel Meule. „FIELD STUDY OF WIND TIDE IN SEMI-ENCLOSED SHALLOW BASINS“. Coastal Engineering Proceedings, Nr. 36v (28.12.2020): 27. http://dx.doi.org/10.9753/icce.v36v.currents.27.

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The aim of the study is to understand the wind effect on mean water level variation in semi-enclosed shallow basins. The studied physical phenomenon is nearly steady water surface tilting due to wind stress, the so-called wind tide (Platzman (1963)). During strong wind conditions, wind tides can have significant consequences on low-lying areas such as submersion and flooding. Two field sites are monitored in the S-E of France to characterize wind tides and more specifically to understand the relative effect of wind magnitude and depth on the mean water level dynamics.Recorded Presentation from the vICCE (YouTube Link): https://youtu.be/Q30I0taty9w

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6

Hibbins, R. E., M. P. Freeman, S. E. Milan und J. M. Ruohoniemi. „Winds and tides in the mid-latitude Southern Hemisphere upper mesosphere recorded with the Falkland Islands SuperDARN radar“. Annales Geophysicae 29, Nr. 11 (04.11.2011): 1985–96. http://dx.doi.org/10.5194/angeo-29-1985-2011.

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Abstract. Meteor wind data from the first year of operation of the Falkland Islands SuperDARN radar (52° S, 59° W) are used to characterize the atmospheric tides and background winds in the upper mesosphere above the South Atlantic. Strong (>40 m s−1) semidiurnal tides are observed in the winter time and large amplitude (>60 m s−1) bursts of quasi two-day wave activity are seen in January 2011. Data are in good agreement with those presented from the SAAMER meteor radar (54° S, 68° W). Comparison with SuperDARN meteor wind data from a geographically similar Northern Hemisphere site at Goose Bay (53° N 60° W) reveal clear interhemispheric differences especially in the semidiurnal and terdiurnal components of the tides. The winter time amplitudes of the tides are much stronger in the Southern Hemisphere than in the north. Background winds are observed to be significantly more polewards and westwards throughout the year than those predicted by the empirical horizontal wind model HWM07.

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7

Lai, Zhigang, Ronghua Ma, Mingfen Huang, Changsheng Chen, Yong Chen, Congbin Xie und Robert C. Beardsley. „Downwelling wind, tides, and estuarine plume dynamics“. Journal of Geophysical Research: Oceans 121, Nr. 6 (Juni 2016): 4245–63. http://dx.doi.org/10.1002/2015jc011475.

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8

Kareem, Kola Yusuff, Yeonjeong Seong, Kyungtak Kim und Younghun Jung. „A Case Study of Tidal Analysis Using Theory-Based Artificial Intelligence Techniques for Disaster Management in Taehwa River, South Korea“. Water 14, Nr. 14 (09.07.2022): 2172. http://dx.doi.org/10.3390/w14142172.

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Monitoring tidal dynamics is imperative to disaster management because it requires a high level of precision to avert possible dangers. Good knowledge of the physical drivers of tides is vital to achieving such a precision. The Taehwa River in Ulsan City, Korea experiences tidal currents in the estuary that drains into the East Sea. The contribution of wind to tide prediction is evaluated by comparing tidal predictions using harmonic analysis and three deep learning models. Harmonic analysis is conducted on hourly water level data from 2010–2021 using the commercial pytides toolbox to generate constituents and predict tidal elevations. Three deep learning models of long short-term memory (LSTM), gated recurrent unit (GRU), and bi-directional lstm (BiLSTM) are fitted to the water level and wind speed to evaluate wind and no-wind scenarios. Results show that Taehwa tides are categorized as semidiurnal tides based on a computed form ratio of 0.2714 in a 24-h tidal cycle. The highest tidal range of 0.60 m is recorded on full moon spring tide indicating the significant lunar pull. Wind effect improved tidal prediction NSE of optimal LSTM model from 0.67 to 0.90. Knowledge of contributing effect of wind will inform flood protection measures to enhance disaster preparedness.

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9

Bunya, S., J. C. Dietrich, J. J. Westerink, B. A. Ebersole, J. M. Smith, J. H. Atkinson, R. Jensen et al. „A High-Resolution Coupled Riverine Flow, Tide, Wind, Wind Wave, and Storm Surge Model for Southern Louisiana and Mississippi. Part I: Model Development and Validation“. Monthly Weather Review 138, Nr. 2 (01.02.2010): 345–77. http://dx.doi.org/10.1175/2009mwr2906.1.

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Abstract A coupled system of wind, wind wave, and coastal circulation models has been implemented for southern Louisiana and Mississippi to simulate riverine flows, tides, wind waves, and hurricane storm surge in the region. The system combines the NOAA Hurricane Research Division Wind Analysis System (H*WIND) and the Interactive Objective Kinematic Analysis (IOKA) kinematic wind analyses, the Wave Model (WAM) offshore and Steady-State Irregular Wave (STWAVE) nearshore wind wave models, and the Advanced Circulation (ADCIRC) basin to channel-scale unstructured grid circulation model. The system emphasizes a high-resolution (down to 50 m) representation of the geometry, bathymetry, and topography; nonlinear coupling of all processes including wind wave radiation stress-induced set up; and objective specification of frictional parameters based on land-cover databases and commonly used parameters. Riverine flows and tides are validated for no storm conditions, while winds, wind waves, hydrographs, and high water marks are validated for Hurricanes Katrina and Rita.

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10

Pei, Qiantong, Jinyu Sheng und Kyoko Ohashi. „Numerical Study of Effects of Winds and Tides on Monthly-Mean Circulation and Hydrography over the Southwestern Scotian Shelf“. Journal of Marine Science and Engineering 10, Nr. 11 (09.11.2022): 1706. http://dx.doi.org/10.3390/jmse10111706.

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A nested-grid modelling system is used to quantify effects of winds and tides on the three-dimensional (3D) circulation and hydrography over the southwestern Scotian Shelf (swScS) and surrounding areas in 2018. The performance of the nested-grid modelling system is assessed by comparing model results with observations and reanalysis data. Analysis of model results demonstrates that both winds and tides enhance the vertical mixing and modify the 3D circulation over the swScS. In winter (summer), the wind-induced vertical mixing warms (significantly cools) the sea surface temperature (SST) over the Scotian Shelf (ScS). In addition to intense vertical mixing associated with winter convection, the wind-induced mixing raises the sea surface salinity (SSS) by entraining the relatively salty sub-surface waters with the surface waters. The effect of wind-induced vertical mixing is evident in the upper water columns of ~40 m (~15 m) in February (August) 2018 over the swScS, reflecting the typically stronger wind forcing in winter than in summer. The wind forcing also enhances the seaward spreading of river runoff. Strong tidal mixing and advection also play an important role in affecting the hydrography and density-driven currents over the Bay of Fundy (BoF), Georges Bank (GeB), and swScS. In summer, tides significantly reduce the SST, increase the SSS, and affect large density-driven currents over the BoF, GeB, and swScS. Winds and tides also modify the large-scale ocean circulation, eddies, meanders, and frontal structures in the deep waters off the swScS through the modulation of baroclinic hydrodynamics.

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Dissertationen zum Thema "Wind-tides"

1

Hebel, Martin. „Tides Within: Concerto for Wind Ensemble“. University of Cincinnati / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1623167017549242.

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2

Largier, John L. „Internal shelf tides and wind-driven motions in deepening the surface mixed layer“. Thesis, University of Cape Town, 1987. http://hdl.handle.net/11427/26080.

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3

Poulose, Jismy. „Interaction of storm tides with wind waves : coastal inundation along the west coast of India“. Thesis, IIT Delhi, 2019. http://eprint.iitd.ac.in:80//handle/2074/8117.

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4

Löffelmann, J., Friederike Lilienthal und Christoph Jacobi. „Trend analyses of solar tides in the middle atmosphere“. Universität Leipzig, 2019. https://ul.qucosa.de/id/qucosa%3A74180.

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Using a mechanistic global circulation model, we analysed the trends of solar tides in the middle atmosphere. Forced by monthly mean assimilation of reanalysis data in the lower atmosphere and monthly adjusted CO2 and ozone distributions, the simulations represent a time period from January 1980 to May 2019. The time series of monthly mean wind and temperature amplitudes of all tidal components have been extracted from these data. Trend analyses by linear regression show prevailing negative trends in July and October for all tides and for all latitudes in the mesosphere and lower thermosphere. In April and January, however, trends are positive or negative, depending on the tidal component. Furthermore, the data set has been examined on possible trend changes via a statistical trend algorithm. A large part of those break points for the zonal wind amplitudes were found from 1985 to 1988 and from 2012 to 2015 for the investigated months January and April. Therefore, a clear relation between changes in the atmospheric ozone concentration and trends of the amplitudes of solar tides is not evident for the presented variables.
Unter Verwendung eines mechanistischen globalen Zirkulationsmodells wurden Trends von solaren Gezeiten in der mittleren Atmosphäre analysiert. Die Simulationen, die in den unteren Atmosphärenschichten mit monatlich gemittelten Reanalysedaten angetrieben wurden sowie mit angepassten CO2 und Ozonverteilungen, decken einen Zeitraum von Januar 1980 bis Mai 2018 ab. Aus diesen Daten wurden Zeitreihen für Monatsmittel in den Amplituden des Windes und der Temperatur für alle vier Gezeiten herausgefiltert. Die über lineare Regression gewonnen Trends ergeben -global betrachtet in der Mesosphäre und unteren Thermosphäre - vorwiegend negativsignifikante Trends im Juli und Oktober. Im April und Januar können jedoch je nach Gezeit und Parameter positive wie auch negative Trends vorkommen. Weiterhin wurden die Datenreihen auf mögliche Trendänderungen mit Hilfe eines statistischen Algorithmus untersucht. Ein Großteil dieser Trend-Wendepunkte in den Zonalwindamplituden liegen für die untersuchten Monate Januar und April in den Jahren von 1985 bis 1988 und von 2012 bis 2015. Eine direkte Verbindung zwischen Änderungen in der atmosphärischen Ozonkonzentration und Trends in den Amplituden solarer Gezeiten lassen sich in den hier behandelten Größen daher nicht ableiten.

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5

Paugam, Caroline. „Niveau d'eau à la côte en bassin semi-ouvert ˸ : effets combinés du vent, des vagues et de la bathymétrie“. Electronic Thesis or Diss., Toulon, 2021. http://www.theses.fr/2021TOUL0003.

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Cette thèse s’intéresse aux variations du niveau d’eau en bassin côtier semi-ouvert et de l’impact du vent, des vagues et de la bathymétrie. Les deux phénomènes à l’origine de variations du niveau de l’eau étudiés sont les basculements de la surface libre induits par le vent et les seiches. Trois bassins côtiers ont été sélectionnés sur le littoral français de la région Provence-Alpes-Côte d’Azur ˸ l’étang de Vaccarès, l’étang de Berre et la Rade de Toulon. Le choix de ces sites réside dans le fait que bien qu’ils soient exposés à des régimes de vent équivalents, mais leurs profondeurs, leurs morphologies et leurs ouvertures à la mer sont différentes, permettant une analyse comparative. Ce travail s’appuie sur l’utilisation de données de niveaux d’eau in-situ, issues du réseau HTM-NET et de deux campagnes expérimentales. Il a été mis en évidence que plus la vitesse du vent est importante, plus la pente de la surface libre est forte. Le basculement est d’autant plus important que la profondeur du bassin est faible. De plus, plus l’ouverture à la mer est importante, plus les basculements sont faibles. La détermination d’un coefficient de frottement constant à permis une prédiction satisfaisante des basculements modérés. Il a également été observé que dans les bassins de profondeur finie et en conditions de fetch limité, les conditions de vagues sont responsables d’un frottement plus important du vent sur la surface de l’eau. L’analyse des courants a mis en évidence la présence des basculement a un impact sur la courantologie dans les trois sites. Les périodes des seiches dans les trois sites ont été déterminées et les axes de résonances ont en partie pu être identifiés. Les amplitudes des seiches sont de l’ordre du mm dans l’étang de Vaccarès et du cm dans l’étang de Berre et la Rade de Toulon. Les frottements importants dans le site de faible profondeur est responsable d’un atténuation des amplitudes des seiches. La présence de seiches a été corrélée avec les basculements du plan d’eau dans les étangs de Berre et Vaccarès dont l’ouverture à la mer est modérée. En revanche, dans la Rade de Toulon bénéficiant d’une large ouverture à la mer, d’autres forçages sont susceptibles d’exciter les modes propres
This doctoral research focuses on water level variations in semi-open coastal basins and the impact of wind, waves and bathymetry. The two phenomena causing water level variations studied are wind-tides and seiching. Three coastal basins were selected on the French coast of the Provence-Alpes-Côte d’Azur region˸ the Vaccarès lagoon, the Berre lagoon and the Toulon Bay. The choice of these sites is due to the fact that they are exposed to equivalent wind regimes, their depths, morphologies and openings to the seaare different, allowing a comparative analysis. This work is based on the use of in-situ water level data from the HTM-NET network and two experimental campaigns. It was shown that the higher the wind speed, the steeper the slope of the free surface. Wind-tide is all the more important as the depth of the basin is low. In addition, the greater the opening to the sea, the lower the wind-tide. The determination of a constant drag coefficient allowed a satisfactory prediction of moderate wind-tides. It was also observed that in basins of finite depth and limited fetch conditions, the wave conditions are responsible for a higher wind friction on the water surface. The analysis of the currents showed that the presence of wind-tides has an impact on the currentology in the three sites. The periods of the seiches in the three sites were determined and the axes of resonance could be partly identified. The seiche amplitudes are of the order of mm in the Vaccarès lagoon and cm in the Berre lagoon and the Toulon Bay. The high friction in theshallow water site is responsible for an attenuation of the seiche amplitudes. The presence of seiche was correlated with wind-tides in the Berre and Vaccarès lagoons, which have a moderate opening to the sea. On the other hand, in the Toulon Bay, which has a large opening to the sea, other forcings are likely to excite the natural modes

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Wargula, Anna (Anna Elizabeth). „Wave-, wind-, and tide-driven circulation at a well-mixed ocean inlet“. Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/111741.

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Thesis: Ph. D. in Mechanical and Oceanographic Engineering, Joint Program in Oceanography/Applied Ocean Science and Engineering (Massachusetts Institute of Technology, Department of Mechanical Engineering; and the Woods Hole Oceanographic Institution), 2017.
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 93-104).
The effects of waves, wind, and bathymetry on tidal and subtidal hydrodynamics at unstratified, shallow New River Inlet, NC, are evaluated using field observations and numerical simulations. Tidal flows are ebb-dominated (-1.5 to 0.6 m/s, positive is inland) inside the main (2 to 5 m deep) channel on the (1 to 2 m deep) ebb shoal, owing to inflow and outflow asymmetry at the inlet mouth. Ebb-dominance of the flows is reduced during large waves (> 1 m) owing to breaking-induced onshore momentum flux. Shoaling and breaking of large waves cause depression (setdown, offshore of the ebb shoal) and super-elevation (setup, on the shoal and in the inlet) of the mean water levels, resulting in changes to the cross-shoal pressure gradient, which can weaken onshore flows. At a 90-degree bend 800-m inland of the inlet mouth, centrifugal acceleration owing to curvature drives two-layered cross-channel flows (0.1 to 0.2 m/s) with surface flows going away from and bottom flows going toward the bend. The depth-averaged dynamics are tidally asymmetric. Subtidal cross-channel flows are correlated (r² > 0.5) with cross-channel wind speed, suggesting that winds are enhancing and degrading the local-curvature induced two-layer flow, and driving three-layer flow.
by Anna Wargula.
Ph. D. in Mechanical and Oceanographic Engineering

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7

Chahboun, Abderrahim. „Les formations sableuses fluviatiles, littorales et eoliennes aux embouchures des oueds tensift, ksob et souss (atlas-atlantique, maroc)“. Paris 6, 1988. http://www.theses.fr/1988PA066131.

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L'etude des formations sableuses aux embouchures des oueds tensift, ksob et souss de l'atlas-atlantique (maroc) permet de mettre en evidence les processus de leur mise en place, ainsi que l'origine de leur materiel. Les oueds apportent jusqu'a l'ocean des elements terrigenes (quartz, feldspaths et mineraux lourds). Ces elements sont remanies et melanges aux depots marins. Le stock sedimentaire est redistribue par les actions marines, et principalement une forte derive littorale nord-sud. Ainsi, dans le systeme du tensift, le materiel dunaire evolue sous l'influence des alizes et des vents d'ouest, mais l'activite de ces derniers se revele plus efficace. Dans le systeme de ksob, le materiel dunaire evolue sous l'action principale des alizes. Dans le systeme du souss, la dynamique eolienne se fait sous l'action conjuguee des alizes et des vents d'ouest. Ces evolutions sedimentaires se traduisent par une amelioration du tri, une diminution progressive du grain moyen et des teneurs en carbonates et mineraux lourds, ainsi que par une eolisation croissante des grains quartz.

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8

Kai-yin, Chen, und 陳凱胤. „Observation of Atmospheric Tides of Three Dimensional Wind Field in Mesosphere Using Chungli VHF Radar“. Thesis, 2016. http://ndltd.ncl.edu.tw/handle/06686969155947310121.

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碩士
國立中央大學
太空科學研究所
104
The antenna array which consists of five Yagi antenna was used in this research.Five Yagi antenna was placed in a cross shape and the distances of each Yagi were different. The position of the target in three dimensional space can be derived by different phases.The targets may fail to locate because of different phases during operating in radar system and phase confusion. By using IGRF model, different phases during operating in radar system can be solved and geometric logic can deal with the phase confusion. Positions of the meteor tails can be located successfully and the three dimensional wind field of the mesosphere can be estimated with sliding window method.After surveying the HWM wind field observed, they are consist with my results and the Diurnal Tide features are quite obvious.

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Timko, Patrick George. „Tidal and wind forced flow in Clode Sound : observations and numerical modelling /“. 2004.

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Bücher zum Thema "Wind-tides"

1

Muschal, Frank. Energy from wind, sun, and tides. Ann Arbor, Mich: Cherry Lake, 2008.

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2

Tolman, H. L. The numerical model WAVEWATCH: A third generation model for hindcasting of wind waves on tides in shelf areas. Delft: Delft University of Technology, Faculty of Civil Engineering, 1989.

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3

O'Connor, William P. The 14 month wind stressed residual circulation (pole tide) in the North Sea. Greenbelt, Md: Goddard Space Flight Center, 1986.

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United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch., Hrsg. The 14 month wind stressed residual circulation (pole tide) in the North Sea. [Washington, DC]: National Aeronautics and Space Administration, Scientific and Technical Information Branch, 1987.

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5

Against Wind and Tides. United Nations, 2016. http://dx.doi.org/10.18356/ad14427c-en.

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6

Muschal, Frank. Energy from Wind, Sun, and Tides. Cherry Lake Publishing, 2007.

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7

War and Wind (TIDES) (Volume 2). Danger Bearing Press, 2017.

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8

Muschal, Frank. Energy from Wind, Sun, and Tides. Cherry Lake Publishing, 2014.

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9

Wolf, E. L. Wind, hydro and tides Fully sustainable energy. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198769804.003.0008.

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Wind-turbine science and technology is outlined, following the work of Betz. Rotor design, blade construction and aspects of electric power generation are described, principally for large horizontal-axis devices, with some mention of vertical axis wind turbines. Hydropower and pumped storage are treated, with mention of Francis and Kaplan turbines. A summary of tidal energy is included. We now go into detail on some aspects of these topics. As these forms of energy come either from the Sun (in an indirect fashion) or from the motion of the Earth and Moon, they are available on an indefinite term into the future.

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10

A Sailor's Guide to Wind, Waves, and Tides. Adlard Coles Nautical, 1997.

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Buchteile zum Thema "Wind-tides"

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Snowber, Celeste Nazeli. „Water, Wind, Tides, and Heron Lessons“. In Dance, Place, and Poetics, 41–53. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-09716-4_4.

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Zou, Caineng. „New Energy Resources—Wind, Light and Tides“. In New Energy, 391–423. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-2728-9_12.

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Shipway, Martin. „The Wind of Change and the Tides of History: de Gaulle, Macmillan and the Beginnings of the French Decolonizing Endgame“. In The Wind of Change, 180–94. London: Palgrave Macmillan UK, 2013. http://dx.doi.org/10.1057/9781137318008_9.

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4

Häusler, Kathrin, und Hermann Lühr. „Longitudinal Variations of the Thermospheric Zonal Wind Induced by Nonmigrating Tides as Observed by CHAMP“. In Aeronomy of the Earth's Atmosphere and Ionosphere, 339–48. Dordrecht: Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-94-007-0326-1_25.

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Hafner, Manfred, und Giacomo Luciani. „Economics of Power Generation“. In The Palgrave Handbook of International Energy Economics, 103–9. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-86884-0_5.

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AbstractThis chapter provides an introduction to the economics of electricity generation, presenting the major economic differences between the multiple power generation solutions and highlighting the comparative advantages and disadvantages of each. In order to provide a satisfactory treatment of power generation technology and economics, a single chapter would have expanded beyond a practical dimension: accordingly the discussion has been divided into a general introduction and a sequence of specific chapters each devoted to a different generation solution: thermal power based on fossil fuels (coal, oil, and gas), thermal power based on nuclear fission, hydroelectricity chapter, solar power, wind power, geothermal power, and power from tides and waves. The present introductory chapter explains where on the load curve the different power generation options should be placed depending on costs, the issue of dispatchability, as well as the difference in the economic cost approach between dispatching and future capacity planning. Also flexibility mechanisms to integrate a large share of non-dispatchable renewable energy sources are discussed. Finally, issues related to space occupation and locational constraints are addressed.

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„The political and institutional dimension: Gender strategies and women's participation in decision-making“. In Against Wind and Tides, 9–23. United Nations, 2016. http://dx.doi.org/10.18356/81ce0b8a-en.

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„Gender equality indices: A brief outlook“. In Against Wind and Tides, 69–72. United Nations, 2016. http://dx.doi.org/10.18356/81e687c9-en.

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„List of the beijing platform for action's strategic objectives“. In Against Wind and Tides, 67–68. United Nations, 2016. http://dx.doi.org/10.18356/bf6817b2-en.

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9

Zdravkovich, M. M. „Non-Uniform Free Stream“. In Flow Around Circular Cylinders, 458–96. Oxford University PressOxford, 1997. http://dx.doi.org/10.1093/oso/9780198563969.003.0015.

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Abstract In most wind-tunnels and water channels a uniform low-turbulence free stream is produced in order to obtain reliable measurements. Such a uniform free stream, however, is not at all common in many engineering applications. For example, the wind is an atmospheric boundary layer and has ashear velocity profile. Other non-uniform velocity profiles may be found in tides and currents. Hence, all cylindrical structures submerged in winds, tides or currents are always exposed to a non-uniform free stream.

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Soukissian, Takvor, Harilaos Kontoyiannis, Flora Karathanasi und Kostas Belibassakis. „The Aegean Sea: Wind Waves and Tides“. In The Handbook of Environmental Chemistry. Berlin, Heidelberg: Springer Berlin Heidelberg, 2020. http://dx.doi.org/10.1007/698_2020_658.

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Konferenzberichte zum Thema "Wind-tides"

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Tolman, Hendrik L. „Propagation of Wind Waves on Tides“. In 21st International Conference on Coastal Engineering. New York, NY: American Society of Civil Engineers, 1989. http://dx.doi.org/10.1061/9780872626874.037.

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Tolman, Hendrik L. „North Sea Wind Waves on Tides and Storm Surges“. In 22nd International Conference on Coastal Engineering. New York, NY: American Society of Civil Engineers, 1991. http://dx.doi.org/10.1061/9780872627765.093.

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Афанасьев, В., und V. Afanas'ev. „MORPHODYNAMICS OF COASTAL TIDAL SUBARCTIC SEAS AFTER A STABLE TRANSITION OF AVERAGE DAILY TEMPERATURE THROUGH 0 AND COASTAL PROTECTION“. In Sea Coasts – Evolution ecology, economy. Academus Publishing, 2018. http://dx.doi.org/10.31519/conferencearticle_5b5ce387b8bb03.63862372.

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It was noted that in a homogeneous coastal bluffs, the beach at comparable settings (the basic structure of the wave energy dissipation), and hydrodynamic effects (tides, surges, long waves and wind), the most intense erosion occurs in November–January. During this period, at the upper levels of the coastal profile, which are equilibrium for storm conditions with maximum tides, beach sediments are freezing and the consequent deterioration of their dissipation properties. Loss of redistribution of snow and blizzard in the profile essentially simulates morphodynamics beach properties at this time.

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Dighe, Kalpak A., Craig A. Tepley, Raul Garcia und Jonathan Friedman. „The Arecibo Observatory Daytime Lidar : Preliminary Results“. In Optical Remote Sensing of the Atmosphere. Washington, D.C.: Optica Publishing Group, 1993. http://dx.doi.org/10.1364/orsa.1993.tud.15.

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The vertical propagation of atmospheric tides and acoustic gravity waves and their corresponding travelling ionospheric disturbances play a crucial role in the transportation and balance of momentum and energy in the earth's atmosphere. The unique availability of both radar and lidar instrumentation at Arecibo can provide simultaneous access to the neutral density, temperature and wind perturbations induced by such wave activity at mesospheric and stratospheric altitudes.

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Illarionova, Margarita, und Margarita Illarionova. „THE INFLUENCE OF SEA ICE ON THE SEA COAST OF SHANTAR ISLANDS“. In Managing risks to coastal regions and communities in a changing world. Academus Publishing, 2017. http://dx.doi.org/10.31519/conferencearticle_5b1b9399a9be55.67359338.

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The Shantar Islands is the group of islands satiated in the Sea of Okhotsk near the exit of Uda Bay, Tugur Bay and Ulban Bay. The islands separated from the mainland and started to exist only 6000 years ago. It happened under the influence of the sea transgression followed by flooding of some parts of the land surface and isolation of the most elevated mountain parts from the mainland. The climate of The Shantar Island is more severe than the climate in the North part of the Sea of Okhotsk due to its proximity to cold regions of Yakutia, complex system of wind and tidal currents, the duration of the ice period, loads of fog and frequent storm winds. The height of tides on the islands can reach 8 meters, and these tidal currents are considered as one of the fastest tides of the World Ocean. The ice near the islands appears in the beginning of November and doesn’t melt for 8-9 months, usually, till mid-July, but some years till mid-August. Such severe ice conditions cannot be observed anywhere else in the Sea of Okhotsk. The variety of forms of the Shantar Islands is a consequence of severe ice conditions, unusual tidal currents and irregularity of the seashore. The most important seashores forming factor is considered to be the activity of sea ice.

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Illarionova, Margarita, und Margarita Illarionova. „THE INFLUENCE OF SEA ICE ON THE SEA COAST OF SHANTAR ISLANDS“. In Managing risks to coastal regions and communities in a changing world. Academus Publishing, 2017. http://dx.doi.org/10.21610/conferencearticle_58b4315b18932.

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The Shantar Islands is the group of islands satiated in the Sea of Okhotsk near the exit of Uda Bay, Tugur Bay and Ulban Bay. The islands separated from the mainland and started to exist only 6000 years ago. It happened under the influence of the sea transgression followed by flooding of some parts of the land surface and isolation of the most elevated mountain parts from the mainland. The climate of The Shantar Island is more severe than the climate in the North part of the Sea of Okhotsk due to its proximity to cold regions of Yakutia, complex system of wind and tidal currents, the duration of the ice period, loads of fog and frequent storm winds. The height of tides on the islands can reach 8 meters, and these tidal currents are considered as one of the fastest tides of the World Ocean. The ice near the islands appears in the beginning of November and doesn’t melt for 8-9 months, usually, till mid-July, but some years till mid-August. Such severe ice conditions cannot be observed anywhere else in the Sea of Okhotsk. The variety of forms of the Shantar Islands is a consequence of severe ice conditions, unusual tidal currents and irregularity of the seashore. The most important seashores forming factor is considered to be the activity of sea ice.

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Rahman, Mosfequr, Mohammad Bashar, Gustavo Molina, Valentin Soloiu und Travis Salyers. „Numerical Investigation on Vertical Axis Wind Turbine in Search for an Efficient Design“. In ASME 2015 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/imece2015-52712.

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The continuous improvement of this world is based on technological advancement. And the technological advancement is directly related to the utilization of energy. The demand of energy is creeping up every day due to increase of population, industrial and agricultural advancement. But the conventional energy sources are becoming limited which is ultimately making them more expensive. In addition to this, everyone is concerned about global climate change. This whole scenario is pushing the world to find the alternative sources of energy. Alternative sources involve natural phenomena such as sunlight, wind, tides, plant growth, and geothermal heat. Solar and Wind power are the most popular among the various sources of renewable energy. Wind alone can fulfill most of the energy requirement of the world by its efficient conversion in to energy. Though Horizontal Axis Wind Turbine (HAWT) is more popular but needs high wind speed to extract energy from the wind. On the Other hand Vertical Axis Wind Turbine (VAWT) can run at low wind speed, independent of wind direction and can be installed anywhere with cheapest cost. The main objective of this research is to improve the design and performance of VAWT to make it more attractive, efficient, durable and sustainable. For a VAWT, the blades perform the main role to extract energy from the wind. Airfoil is considered as the blade for this new design of VAWT. Airfoil has some good aerodynamic characteristics, matches with the characteristics of Savonious type VAWT, such as good stall characteristics and little roughness affect, relatively high drag and low lift coefficient. Three dimensional CAD models of various simple airfoils have been designed in Solidworks. Using these airfoils CFD simulation has been performed for five different VAWT designed models. Moving mesh and fluid flow simulation have been performed using CFD software FLUENT. The findings of these numerical simulations provided pressure contour, velocity contour, drag coefficient, lift coefficient, torque coefficient and power coefficient for all these models. From the results it can be concluded that NACA7510 airfoil VAWT model gives the better performance at higher Tip Speed Ratio (λ) than other models.

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Cifuentes, Cristian, Gonzalo Tampier, Alonso Echevarría und Carlos Felipe Hurtado. „Determination of Mooring Load Levels on a Cage Designed for Exposed Aquaculture in Chile“. In ASME 2023 42nd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2023. http://dx.doi.org/10.1115/omae2023-101308.

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Abstract The determination of mooring tension on a prototype cage for salmon production on exposed areas in southern Chile is obtained using experiments at laboratory scale, numerical simulations as well as on site measurements using a submersible load cell. The 40m diameter prototype cage used in this study is constructed out of HDPE pipe and has a ballast tank attached to the bottom to control the operational depth in case of high waves. The cage uses a copper nickel alloy net cancelling the need for a predatory net as in traditional systems. First, drag coefficients for the net were obtained at the Wave/Towing tank at Universidad Austral de Chile (UACh), plus the characterization of dynamic response and deformation of two cage models. These results were used as input for numerical simulations of the cage using the commercial software AquaSim. The last stage of the campaign was the measurement of tension on the prototype cage, using a load cell on a mooring line along with measurements of tides, wind, waves, and currents. The results are the base for a more complex analysis, since the net, due to its geometry, stiffness and wet weight, has a particular behavior when compared to traditional fiber-based nets.

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Korablina, Anastasia, Anastasia Korablina, Victor Arkhipkin, Victor Arkhipkin, Sergey Dobrolyubov, Sergey Dobrolyubov, Stanislav Myslenkov und Stanislav Myslenkov. „MODELING STORM SURGES AND WAVE CLIMATE IN THE WHITE AND BARENTS SEAS“. In Managing risks to coastal regions and communities in a changing world. Academus Publishing, 2017. http://dx.doi.org/10.31519/conferencearticle_5b1b93b9756d34.56648850.

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Russian priority - the study of storm surges and wave climate in the Arctic seas due to the active development of offshore oil and gas. Researching the formation of storm surge and wave are necessary for the design and construction of facilities in the coastal zone, as well as for the safety of navigation. An inactive port ensues considerable economic losses. It is important to study the variability of storm surges, wave climate in the past and forecast the future. Consequently, this information would be used for planning the development of the Arctic in accordance with the development programme 2020. Mathematical modeling is used to analyze the characteristics of storm surges and wave climate formation from 1979 to 2010 in the White and Barents Seas. Calculation of storm surge heights in the seas is performed using model AdCirc on an unstructured grid with a 20 km pitch in the Barents Sea and 100 m in the White Sea. The model AdCirc used data of wind field reanalysis CFSv2. The simulation of storm surge was conducted with/without pressure, sea state, tides. A non-linear interaction of the surge and tide during the phase of destruction storm surge was detected. Calculation of the wave climate performed using SWAN spectral wave model on unstructured grids. Spatial resolution is 500 m-5 km for the White Sea and 10-20 km for the Barents Sea. NCEP/CFSR (~0.3°) input wind forcing was used. The storminess of the White Sea tends to increase from 1979 to 1991, and then decrease to minimum at 2000 and increase again till 2010.

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Korablina, Anastasia, Anastasia Korablina, Victor Arkhipkin, Victor Arkhipkin, Sergey Dobrolyubov, Sergey Dobrolyubov, Stanislav Myslenkov und Stanislav Myslenkov. „MODELING STORM SURGES AND WAVE CLIMATE IN THE WHITE AND BARENTS SEAS“. In Managing risks to coastal regions and communities in a changing world. Academus Publishing, 2017. http://dx.doi.org/10.21610/conferencearticle_58b4317442aca.

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Russian priority - the study of storm surges and wave climate in the Arctic seas due to the active development of offshore oil and gas. Researching the formation of storm surge and wave are necessary for the design and construction of facilities in the coastal zone, as well as for the safety of navigation. An inactive port ensues considerable economic losses. It is important to study the variability of storm surges, wave climate in the past and forecast the future. Consequently, this information would be used for planning the development of the Arctic in accordance with the development programme 2020. Mathematical modeling is used to analyze the characteristics of storm surges and wave climate formation from 1979 to 2010 in the White and Barents Seas. Calculation of storm surge heights in the seas is performed using model AdCirc on an unstructured grid with a 20 km pitch in the Barents Sea and 100 m in the White Sea. The model AdCirc used data of wind field reanalysis CFSv2. The simulation of storm surge was conducted with/without pressure, sea state, tides. A non-linear interaction of the surge and tide during the phase of destruction storm surge was detected. Calculation of the wave climate performed using SWAN spectral wave model on unstructured grids. Spatial resolution is 500 m-5 km for the White Sea and 10-20 km for the Barents Sea. NCEP/CFSR (~0.3°) input wind forcing was used. The storminess of the White Sea tends to increase from 1979 to 1991, and then decrease to minimum at 2000 and increase again till 2010.

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Berichte der Organisationen zum Thema "Wind-tides"

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Hart, Kate, Jodi Lejeune, Rebecca Beavers, Sam Whitin, Christopher Overcash, Monique LaFrance Bartley und Suzie Boltz. National Park Service beach nourishment guidance (second edition). National Park Service, Mai 2023. http://dx.doi.org/10.36967/2299256.

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Sandy coastal areas (including coastal dunes, beaches, and submerged intertidal and nearshore areas) are naturally dynamic ecosystems. These areas experience accretion, erosion, dune and island migration, overwash, and other processes as sediments are transported by the wind, waves, tides, and currents. If these natural physical processes are disrupted, the beach ecosystem may transform, become unstable, or disappear completely over time. Human development of coastal areas, sea level rise, and increasing frequency and intensity of coastal storms are examples of coastal change that interfere with sediment transport and therefore threaten the stability of coastal ecosystems. Beach nourishment is a nature-based engineering strategy that artificially delivers sand (a size of sediment) to a coastal ecosystem to lessen the disruption of sediment supply. Generally, beach nourishment is intended to mitigate erosion, protect infrastructure and buildings, and/or to restore habitat. The National Park Service (NPS) has produced an updated guidance manual that provides a consistent approach to beach nourishment based on sound coastal science and engineering. The goal of this updated guidance is to provide information on this method to protect and preserve the beaches and associated resources of the National Park System.

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