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Dissertations / Theses on the topic 'Ocean surface model'

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Published: 3 June 2025

Last updated: 31 July 2025

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1

Brookins, A. Henry. "Ocean wave height transformation model using surface roller theory." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1993. http://handle.dtic.mil/100.2/ADA272610.

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2

El-Nimri, Salem. "DEVELOPMENT OF AN IMPROVED MICROWAVE OCEAN SURFACE EMISSIVITY RADIATIVE TRANSFER MODEL." Doctoral diss., University of Central Florida, 2010. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/2878.

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An electromagnetic model is developed for predicting the microwave blackbody emission from the ocean surface over a wide range of frequencies, incidence angles, and wind vector (speed and direction) for both horizontal and vertical polarizations. This ocean surface emissivity model is intended to be incorporated into an oceanic radiative transfer model to be used for microwave radiometric applications including geophysical retrievals over oceans. The model development is based on a collection of published ocean emissivity measurements obtained from satellites, aircraft, field experiments, and

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3

Xing, Zeda. "The response of a simple model atmosphere to sea surface temperature anomalies in the North Pacific." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ37178.pdf.

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4

Weaver, Anthony T. "On assimilating sea surface temperature data into an ocean general circulation model." Thesis, University of British Columbia, 1990. http://hdl.handle.net/2429/29204.

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The feasibility of sea surface temperature (SST) data improving the performance of an ocean general circulation model (OGCM) is investigated through a series of idealized numerical experiments. The GFDL Bryan-Cox-Semtner primitive equation model is set-up as an eddy resolving, unforced, flat bottomed channel of uniform depth. 'Observed' SST data taken from a reference ocean established in a control run are continuously assimilated into an 'imperfect' model using a simple 'nudging' scheme based on a surface relaxation condition of the form Q = C(SST — T₁) where Q is the heat flux and T₁ is th

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5

Kukulka, Tobias. "The effect of breaking waves on a coupled model of wind and ocean surface waves." View online ; access limited to URI, 2006. http://0-digitalcommons.uri.edu.helin.uri.edu/dissertations/AAI3248233.

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6

Currie, Jock C. "Interannual variability in Indian Ocean surface waters and tuna-environment relationships : filling the gaps with a coupled bio-physical ocean model." Master's thesis, University of Cape Town, 2011. http://hdl.handle.net/11427/10313.

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Study of the Indian Ocean has lagged behind that of the Atlantic and Pacific, with large knowledge gaps remaining in our understanding of regional or basin-scale controls on productivity and higher trophic levels. A lack of in situ data, especially for mid and upper trophic-level organisms, has commonly limited to small spatiotemporal scales, investigations into environmental control of biological systems. These data gaps are increasingly being filled by coupled bio-physical ocean models. Throughout this thesis, outputs from such a coupled ocean model (NEMO-PISCES) were employed to provide hin

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7

EL-Nimri, Salem. "AN IMPROVED MICROWAVE RADIATIVE TRANSFER MODEL FOR OCEAN EMISSIVITY AT HURRICANE FORCE SURFACE WIND SPEED." Master's thesis, University of Central Florida, 2006. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/2523.

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An electromagnetic model for predicting the microwave blackbody emission from the ocean surface under the forcing of strong surface winds in hurricanes is being developed. This ocean emissivity model will be incorporated into a larger radiative transfer model used to infer ocean surface wind speed and rain rate in hurricanes from remotely sensed radiometric brightness temperature. The model development is based on measurements obtained with the Stepped Frequency Microwave Radiometer (SFMR), which routinely flys on the National Oceanic and Atmospheric Administration's hurricane hunter aircraft.

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8

Soisuvarn, Seubson. "AN OCEAN SURFACE WIND VECTOR MODEL FUNCTION FOR A SPACEBORNE MICROWAVE RADIOMETER AND ITS APPLICATION." Doctoral diss., University of Central Florida, 2006. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/2563.

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Ocean surface wind vectors over the ocean present vital information for scientists and forecasters in their attempt to understand the Earth's global weather and climate. As the demand for global wind velocity information has increased, the number of satellite missions that carry wind-measuring sensors has also increased; however, there are still not sufficient numbers of instruments in orbit today to fulfill the need for operational meteorological and scientific wind vector data. Over the last three decades operational measurements of global ocean wind speeds have been obtained from passive mi

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9

Hallsworth, Stephen. "Modelling the diurnal-variation of sea surface temperature using a one-dimensional ocean turbulence model." Thesis, University of Edinburgh, 2005. http://hdl.handle.net/1842/13986.

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With strong diurnal warming, the temperature at the air-sea interface could be several degrees warmer than the temperature at one or two metres depth. To correctly interpret SST measurements during conditions of diurnal-warming of SST, the diurnal response to environmental conditions must be understood. This thesis is a study of the response of diurnal-warming of SST to the primary environmental conditions that cause it. A one-dimensional ocean turbulence model is used to simulate the diurnal-cycle of warming of SST. The model is developed and enhanced to enable accurate predictions of amplitu

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10

Nelson, A. D. "Observation-Model Comparisons of Near-Surface Ocean Variability on Interannual, Multidecadal, and Orbital Time Scales." Thesis, University of Colorado at Boulder, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10283702.

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<p> This thesis explores the concepts and techniques of observation-model comparisons of the natural variability of the near-surface ocean on three different time scales. The emphasis on natural variability includes removing the all-time trend and seasonality of the data. All analyses used model outputs of the Community Climate System Model version 3.5 (CCSM3.5). </p><p> The first work, <u>An Ensemble Observing System Simulation Experiment of Global Ocean Heat Content Variability,</u> introduces the use of ensemble of model time series to study how a set of observations and how they are proc

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11

Zelenke, Brian Christopher. "An empirical statistical model relating winds and ocean surface currents : implications for short-term current forecasts." Thesis, Connect to the title online, 2005. http://hdl.handle.net/1957/2166.

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12

Ead, Richard M. "Predicting the effects of sea surface scatter on broad band pulse propagation with an ocean acoustic parabolic equation model." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2004. http://library.nps.navy.mil/uhtbin/hyperion/04Jun%5FEad.pdf.

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13

Wijesundara, Shanka N. "Studies of Electromagnetic Backscattering from Ocean Surfaces." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1565976614784442.

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14

Zhang, Xi. "Multi-model method for simulating 2D surface-piercing wave-structure interactions." Thesis, City, University of London, 2018. http://openaccess.city.ac.uk/19772/.

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Wave-structure interactions play an important role on the design and maintenance of coastal and offshore constructions. Computational Fluid Dynamics (CFD) is a convenient tool for analyzing wave-structure interactions in costal and offshore engineering. The potential model and the viscous model are traditional mathematical models for wave-structure interactions, which have disadvantages in computational robustness, when they are applied individually. Therefore, recently, more and more multi-model methods are used for coupling the viscous model and the potential model together. So far, in the e

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15

Wang, Zhaomin. "A simple coupled atmosphere-ocean-sea ice-land surface-ice sheet model for climate and paleoclimate studies." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape9/PQDD_0020/NQ55391.pdf.

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16

Wang, Zhaomin 1963. "A simple coupled atmosphere-ocean-sea ice-land surface-ice sheet model for climate and paleoclimate studies /." Thesis, McGill University, 1999. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=36068.

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We develop a new coupled atmosphere-ocean-sea ice-land surface-ice sheet model for long-term climate change studies. This five-component model incorporates the seasonal cycle, and the three major ocean basins, the Antarctic Circumpolar Current region and the major continents are resolved. The model variables are sectorially averaged across the different ocean basins and continents.<br>The above coupled model (less the ice sheet component) is first used to simulate the major features of the present day climate. In a global warming (cooling) experiment, the thermohaline circulation (THC) in the

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17

Meyers, Patrick C. "Development and Analysis of the Systematically Merged Atlantic Regional Temperature and Salinity (SMARTS) Climatology for Satellite-Derived Ocean Thermal Structure." Scholarly Repository, 2011. http://scholarlyrepository.miami.edu/oa_theses/271.

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A new oceanic climatology to calculate ocean heat content (OHC) was developed for application year-round in the Atlantic Ocean basin. The Systematically Merged Atlantic Regional Temperature and Salinity (SMARTS) Climatology blends temperature and salinity fields from the World Ocean Atlas 2001 (WOA) and Generalized Digital Environmental Model v.3.0 (GDEM) at 1/4° resolution. This higher resolution climatology better resolves features in the Gulf of Mexico (GOM), including the Loop Current and eddy structures, than the previous coarser 1/2° products. Daily mean isotherm depths of the 20° C (D20

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18

Chen, Chia-Jeng. "Hydro-climatic forecasting using sea surface temperatures." Diss., Georgia Institute of Technology, 2012. http://hdl.handle.net/1853/48974.

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A key determinant of atmospheric circulation patterns and regional climatic conditions is sea surface temperature (SST). This has been the motivation for the development of various teleconnection methods aiming to forecast hydro-climatic variables. Among such methods are linear projections based on teleconnection gross indices (such as the ENSO, IOD, and NAO) or leading empirical orthogonal functions (EOFs). However, these methods deteriorate drastically if the predefined indices or EOFs cannot account for climatic variability in the region of interest. This study introduces a new hydro-climat

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19

Taws, Sarah Lilian. "Seasonal re-emergence of sea surface temperature anomalies in the North Atlantic : an observational and ocean model study." Thesis, University of Southampton, 2013. https://eprints.soton.ac.uk/359069/.

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The aim of this thesis is to provide a more comprehensive and dynamic understanding of sea surface temperature anomaly (SSTA) re-emergence in the North Atlantic, by (a) re-evaluating the utility of re-emergence for sea surface temperature (SST) variability quantitatively and/or by analysing its temporal variability, and (b) investigating the e�ects of horizontal advection, subduction and mesoscale phenomena on the occurrence and nature of SSTA re-emergence in the ocean. Such analyses may contribute towards an improved representation of SSTA re-emergence in seasonal forecast models, which is cu

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20

Lemon, Michael R. "Comparison of Los Alamos National Laboratory (LANL) Parallel Ocean Program (POP) model velocity fields with Pacific surface drifter measurements." Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1997. http://handle.dtic.mil/100.2/ADA341312.

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Thesis (M.S. in Physical Oceanography) Naval Postgraduate School, September 1997.<br>"September 1997." Thesis advisor(s): Julie L. McClean, Jeffrey D. Paduan. Includes bibliographical references (p. 111-114). Also available online.

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21

Pelton, Jimmy W. "A comparison of output from the Los Alamos National Laboratory (LANL) Parallel Ocean Program (POP) model with surface velocity data from drifting Buoys in the North Atlantic Ocean." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2000. http://handle.dtic.mil/100.2/ADA375844.

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Thesis (M.S. in Operations Research) Naval Postgraduate School, March 2000.<br>Thesis advisor(s): McClean, Julie L. "March 2000." Includes bibliographical references (p. 135-138). Also available in print.

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22

Wu, Lichuan. "Introducing Surface Gravity Waves into Earth System Models." Doctoral thesis, Uppsala universitet, Luft-, vatten och landskapslära, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-314760.

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Surface gravity waves alter the turbulence of the bottom atmosphere and the upper ocean. Accordingly, they can affect momentum flux, heat fluxes, gas exchange and atmospheric mixing. However, in most state-of-the-art Earth System Models (ESMs), surface wave influences are not fully considered or even included. Here, applying surface wave influences into ESMs is investigated from different aspects. Tuning parameterisations for including instantaneous wave influences has difficulties to capture wave influences. Increasing the horizontal resolution of models intensifies storm simulations for both

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23

Senan, Retish. "Intraseasonal Variability Of The Equatorial Indian Ocean Circulation." Thesis, Indian Institute Of Science, 2004. https://etd.iisc.ac.in/handle/2005/297.

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Climatological winds over the equatorial Indian Ocean (EqlO) are westerly most of the year. Twice a year, in April-May ("spring") and October-December ("fall"), strong, sustained westerly winds generate eastward equatorial jets in the ocean. There are several unresolved issues related to the equatorial jets. They accelerate rapidly to speeds over lms"1 when westerly wind stress increases to about 0.7 dyne cm"2 in spring and fall, but decelerate while the wind stress continues to be westerly; each jet is followed by westward flow in the upper ocean lasting a month or longer. In addition to the

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Senan, Retish. "Intraseasonal Variability Of The Equatorial Indian Ocean Circulation." Thesis, Indian Institute Of Science, 2004. http://hdl.handle.net/2005/297.

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Climatological winds over the equatorial Indian Ocean (EqlO) are westerly most of the year. Twice a year, in April-May ("spring") and October-December ("fall"), strong, sustained westerly winds generate eastward equatorial jets in the ocean. There are several unresolved issues related to the equatorial jets. They accelerate rapidly to speeds over lms"1 when westerly wind stress increases to about 0.7 dyne cm"2 in spring and fall, but decelerate while the wind stress continues to be westerly; each jet is followed by westward flow in the upper ocean lasting a month or longer. In addition to the

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25

Yin, Jianjun, Jonathan Overpeck, Cheryl Peyser, and Ronald Stouffer. "Big Jump of Record Warm Global Mean Surface Temperature in 2014-2016 Related to Unusually Large Oceanic Heat Releases." AMER GEOPHYSICAL UNION, 2018. http://hdl.handle.net/10150/627121.

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A 0.24 degrees C jump of record warm global mean surface temperature (GMST) over the past three consecutive record-breaking years (2014-2016) was highly unusual and largely a consequence of an El Nino that released unusually large amounts of ocean heat from the subsurface layer of the northwestern tropical Pacific. This heat had built up since the 1990s mainly due to greenhouse-gas (GHG) forcing and possible remote oceanic effects. Model simulations and projections suggest that the fundamental cause, and robust predictor of large record-breaking events of GMST in the 21st century, is GHG forci

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26

Tang, Chao. "Model estimations of possible climate changes of surface solar radiation at regional scales over Southern Africa and the South West Indian Ocean." Thesis, La Réunion, 2017. http://www.theses.fr/2017LARE0055/document.

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Les variations du rayonnement solaire en surface (SSR) peuvent avoir un impact significatif sur divers aspects du système climatique, et notamment sur le développement socio-économique d’un pays. Pour identifier les impacts possibles du changement climatique sur le rayonnement solaire en surface à l'échelle régionale (~ 50 km) en Afrique australe jusqu'à la fin du 21ème siècle, on a analysé les données mensuelles produites dans le cadre du projet CORDEX-Afrique sur la période 1979-2099. Ces données sont issues des sorties de 5 modèles régionaux de climat (RCM) forcés par 10 modèles globaux de

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27

Kiss, Andrew Elek, and Andrew Kiss@anu edu au. "Dynamics of laboratory models of the wind-driven ocean circulation." The Australian National University. Research School of Earth Sciences, 2001. http://thesis.anu.edu.au./public/adt-ANU20011018.115707.

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This thesis presents a numerical exploration of the dynamics governing rotating flow driven by a surface stress in the " sliced cylinder " model of Pedlosky & Greenspan (1967) and Beardsley (1969), and its close relative, the " sliced cone " model introduced by Griffiths & Veronis (1997). The sliced cylinder model simulates the barotropic wind-driven circulation in a circular basin with vertical sidewalls, using a depth gradient to mimic the effects of a gradient in Coriolis parameter. In the sliced cone the vertical sidewalls are replaced by an azimuthally uniform slope around the

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28

Moore, Matthew J. "Evolution of boundary layer height in response to surface and mesoscale forcing." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2005. http://library.nps.navy.mil/uhtbin/hyperion/05Mar%5FMoore.pdf.

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29

Gleßmer, Mirjam Sophia [Verfasser]. "A model-based investigation of transport pathways of thermocline waters to the ocean surface, with a focus on tropical oxygen minimum zones / Mirjam Sophia Gleßmer." Kiel : Universitätsbibliothek Kiel, 2010. http://d-nb.info/1019983671/34.

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30

Li, Peng. "Temporal and Spatial Variability of Surface Solar Radiation over the South-West Indian Ocean and Reunion Island : Regional Climate Modeling." Thesis, La Réunion, 2015. http://www.theses.fr/2015LARE0021/document.

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Ce travail documente la variabilité spatiale et temporelle du rayonnement solaire à la surface sur le sud-ouest de l'océan Indien (SOOI) et l'île de La Réunion à l'aide de deux modèles régionaux de climat (MRC) : les modèles RegCM et WRF. La première partie de ce travail est dédiée à l'analyse de la variabilité temporelle du rayonnement solaire à l'aide du modèle RegCM sur le SOOI avec une résolution spatiale modérée (50km). S'agissant du premier travail sur la modélisation régionale du climat pour l'étude du rayonnement solaire dans le SOOI, une première série de tests pour illustrer les perf

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Schulte, Walter B. III. "The frequency response, impulse response, and transfer function of an ocean waveguide." Thesis, Monterey, California. Naval Postgraduate School, 2004. http://hdl.handle.net/10945/1516.

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Approved for public release, distribution is unlimited<br>In this thesis, the ocean was modeled as a waveguide with an ideal pressure - release surface, and an ideal rigid bottom. The ocean waveguide was then treated as a linear, time - invariant, space - variant (TISV) filter or communication channel. The filter is time - invariant because no motion was modeled and because the properties of the ocean were assumed to be constant. The filter is space - variant because of the presence of the two boundaries, that is, the ocean surface and ocean bottom. This thesis investigates the ocean as a line

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32

Harlander, Uwe. "On periodic solutions found in simple ocean models with fixed surface fluxes." Universitätsbibliothek Leipzig, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-213065.

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In einer kürzlich erschienenen Arbeit haben Greatbatch und Zhang darauf hingewiesen, daß interdekadische Oszillationen in einem Ozean-Becken-Modell gefunden werden können, falls dieses mit festgehaltenen Wärmeflüssen angetrieben wird. Diese Oszillationen haben Ahnlichkeit mit jenen, welche Delworth et al. in einem gekoppelten Ozean-Atmosphären-Modell fanden. In der vorliegenden Arbeit werden Mechanismen verglichen, die in drei einfachen Ozeanmodellen mit festgehaltenen Antrieben zu Schwingungen führen. Die Experimente mit einem drei-dimensionalen Becken-Modell werden ausführlich beschrieben. I

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Harlander, Uwe. "On periodic solutions found in simple ocean models with fixed surface fluxes." Wissenschaftliche Mitteilungen des Leipziger Instituts für Meteorologie ; 4 = Meteorologische Arbeiten aus Leipzig ; 2 (1996), S. 151-169, 1996. https://ul.qucosa.de/id/qucosa%3A15062.

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In einer kürzlich erschienenen Arbeit haben Greatbatch und Zhang darauf hingewiesen, daß interdekadische Oszillationen in einem Ozean-Becken-Modell gefunden werden können, falls dieses mit festgehaltenen Wärmeflüssen angetrieben wird. Diese Oszillationen haben Ahnlichkeit mit jenen, welche Delworth et al. in einem gekoppelten Ozean-Atmosphären-Modell fanden. In der vorliegenden Arbeit werden Mechanismen verglichen, die in drei einfachen Ozeanmodellen mit festgehaltenen Antrieben zu Schwingungen führen. Die Experimente mit einem drei-dimensionalen Becken-Modell werden ausführlich beschrieben. I

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34

Tracey, Brian Hearne. "An integrated modal approach to surface and volume scattering in ocean acoustic waveguides." Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/11280.

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Páleník, Branislav. "Návrh plovoucí betonové konstrukce." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2014. http://www.nusl.cz/ntk/nusl-226747.

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The project aimed to familiarize yourself with the issue of floating structures, according to the procurement documents and knowledge acquired during studie, a study of existing floating structures. Review was conducted design adapted from documents. More space was devoted bottom structure in the assessment. Other structures designed only provisionally.

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Genco, Marie-Laure. "Les marées dans l'Océan atlantique : modélisation et bilan énergétique." Grenoble 1, 1993. http://www.theses.fr/1993GRE10009.

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L'objectif de cette these est d'ameliorer notre connaissance des marees dans l'ocean atlantique. Ce travail a ete mene en particulier dans le cadre de la mission satellitale topex/poseidon, l'exploitation des donnees altimetriques necessitant des corrections tres precises de marees. Cette etude repose sur l'utilisation d'un modele hydrodynamique original, formule par le provost en 74. Ce modele est base sur les equations des ondes longues integrees sur la verticale et quasi lineaire. Une methode spectrale permet la decomposition en temps des equations et conduit a resoudre un probleme specifiq

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Zhang, Chiong C. (Chiong Chelsea). "Turbulent free-surface wakes behind towed models : experimental measurements, numerical simulations and stability analysis." Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/10731.

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Karsten, Richard H. "Nonlinear effects in two-layer, frontal-geostrophic models of surface ocean fronts." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape15/PQDD_0027/NQ34786.pdf.

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Arnaud, Laurent. "Modélisation de la transformation de la neige en glace à la surface des calottes polaires : étude du transport des gaz dans ces milieux poreux." Phd thesis, Université Joseph Fourier (Grenoble), 1997. http://tel.archives-ouvertes.fr/tel-00709566.

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La glace, lorsqu'elle se forme dans les zones centrales des calottes polaires, est surmontée de plus de 100 m de neige et de névé. Au moment, où elle emprisonne dans ces bulles l'air atmosphérique, l'age de cette glace peut dépasser plusieurs milliers d'années. Ce travail contribue à préciser les étapes de cette transformation neige/névé/glace en s'appuyant sur des données de structure de ce milieu poreux et sur une modélisation physique de ces processus. La structure 2D a été caractérisée grâce à une nouvelle méthode, basée sur l'observation en épiscopie coaxiale de la surface sublimée des éc

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Marble, Douglas Craig. "A model analysis of potential vorticity on isopycnal surfaces for the global ocean." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1993. http://handle.dtic.mil/100.2/ADA275047.

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Thesis (M.S. in Meteorology and Physical Oceanography) Naval Postgraduate School, September 1993.<br>Thesis advisor(s): Semtner, Albert J. "September 1993." Bibliography: p. 33-35. Also available online.

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Duhaut, Thomas H. A. "Wind-driven circulation : impact of a surface velocity dependent wind stress." Thesis, McGill University, 2006. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=101117.

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The use of an ocean surface velocity dependent wind stress is examined in the context of a 3-layer double-gyre quasigeostrophic wind-driven ocean circulation model. The new wind stress formulation results in a large reduction of the power input by the wind into the oceanic circulation. This wind stress is proportional to a quadratic function of Ua--u o, where Ua is the wind at 10m above the ocean surface and uo is the ocean surface current. Because the winds are typically faster than the ocean currents, the impact of the ocean surface velocity on the wind stress itself is relatively small. How

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Verdy, Ariane. "Variability of zooplankton and sea surface temperature in the Southern Ocean." Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/39197.

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Thesis (S.M.)--Joint Program in Physical Oceanography (Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences; and the Woods Hole Oceanographic Institution), 2006.<br>Includes bibliographical references (p. 69-74).<br>Interactions between physical and biological processes in the Southern Ocean have significant impacts on local ecosystems as well as on global climate. In this thesis, I present evidence that the Southern Ocean circulation affects the variability of zooplankton and sea surface temperature, both of which are involved in air-sea exchanges of carb

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Chan, Johnson Lap-Kay. "Numerical procedure for potential flow problems with a free surface." Thesis, University of British Columbia, 1987. http://hdl.handle.net/2429/28637.

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A numerical procedure based upon a boundary integral method for gravity wave making problems is studied in the time domain. The free-surface boundary conditions are combined and expressed in a Lagrangian notation to follow the free-surface particle's motion in time. The corresponding material derivative term is approximated by a finite difference expression, and the velocity terms are extrapolated in time for the completion of the formulations. The fluid-body intersection position at the free surface is predicted by an interpolation function that requires information from both the free surface

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Wannasingha, Usa. "Nested rigid-lid and free-surface numerical primitive equation ocean models for the Faroese Channels." Thesis, University of Exeter, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.324026.

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Lee, Craig M. "Observations and models of upper ocean response to atmospheric forcing : wind driven flow, surface heating and near-inertial wave interactions with mesoscale currents /." Thesis, Connect to this title online; UW restricted, 1995. http://hdl.handle.net/1773/11039.

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Moatar-Bertrand, Florentina. "Modélisations statistiques et déterministes des paramètres physico-chimiques utilisés en surveillance des eaux de rivières : application à la validation des séries de mesures en continu (cas de la Loire moyenne)." Grenoble INPG, 1997. http://www.theses.fr/1997INPG0219.

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Pour la surveillance hydroecologique des centrales nucleaires, des stations automatiques mesurent en continu quatre parametres physico-chimiques : la temperature de l'eau, l'oxygene dissous, le ph et la conductivite electrique. Ces stations produisent a chaque heure des mesures de la qualite de l'eau prelevee en amont, en aval et au droit du rejet des centrales. Ce travail propose un ensemble d'outils permettant la critique et la validation de ces donnees. Ces outils devraient permettre de detecter les valeurs aberrantes, les discontinuites et les derives des enregistrements les plus frequemme

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Morris-Thomas, Michael. "An investigation into wave run-up on vertical surface piercing cylinders in monochromatic waves." University of Western Australia. School of Oil and Gas Engineering, 2003. http://theses.library.uwa.edu.au/adt-WU2004.0010.

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[Formulae and special characters can only be approximated here. Please see the pdf version of the abstract for an accurate reproduction.] Wave run-up is the vertical uprush of water when an incident wave impinges on a free- surface penetrating body. For large volume offshore structures the wave run-up on the weather side of the supporting columns is particularly important for air-gap design and ultimately the avoidance of pressure impulse loads on the underside of the deck structure. This investigation focuses on the limitations of conventional wave diffraction theory, where the free-surface

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Napoly, Adrien Antoine. "Apport de paramétrisations avancées des processus liés à la végétation dans les modèles de surface pour la simulation des flux atmosphériques et hydrologiques." Phd thesis, Toulouse, INPT, 2016. http://oatao.univ-toulouse.fr/17682/7/napoly.pdf.

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La version actuelle du modèle de surface continentale ISBA représente la couche de sol superficiel et la végétation comme un composite dont les propriétés physiques résultent de pondérations entre les propriétés du sol et de la végétation (albédo, rugosité par exemple). Une nouvelle version, ISBA-MEB (Multi-Energy-Balance), représente le sol et la végétation au travers de deux bilans séparés. Ce développement permet notamment une approche plus réaliste de la modélisation des flux au-dessus, dans et sous de la canopée avec un traitement propre à chacune des couches et la prise en compte de nouv

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Lang, Michel. "Les chroniques en hydrologie : modélisation comparée par un système de gestion de bases de données relationnel et orienté-objet : traitements de base et intervalles de confiance des quantiles de crues : techniques d'échantillonnage par la méthode du renouvellement." Grenoble 1, 1995. http://www.theses.fr/1995GRE10047.

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Le sujet de la these concerne les chroniques hydrologiques. Cette these comporte quatre parties. Apres un rappel du contexte general de la gestion des donnees en hydrologie, nous presentons en premiere partie les outils de gestion informatique disponibles et les principaux logiciels existants en hydrologie. La deuxieme partie decrit plusieurs modeles conceptuels pour modeliser le systeme d'information des donnees hydrologiques, fournit des exemples appliques a l'hydrologie, et presente une comparaison de l'aptitude de deux generations de systemes de gestion de bases de donnees a gerer des chro

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Mondet, Jean. "Etude des paramètres de surface de la calotte polaire antarctique, dans les domaines spectraux du visible et du proche infrarouge, à partir des données de l'instrument de télédétection POLDER." Phd thesis, Grenoble 1, 1999. http://tel.archives-ouvertes.fr/tel-00766029.

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L'albédo de la surface antarctique Joue un rôle important dans les études climatologiques. Essentiellement deux facteurs peuvent modifier sa valeur: la taille des grains de neige et la rugosité de surface générée par les vents dominants. Ces caractéristiques de surface varient dans l'espace et dans le temps et seuls les satellites permettent régulièrement leurs estimations sur un continent aussi vaste, inhospitalier et isolé que l'Antarctique. Parmi les in struments de télédétection, POLDER (POLarization and Directionality of the Earth's Reflectances), à bord du satellite ADEOS, est le premier

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