Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 60 for “"Atmospheric forcing"”.
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On surface versus atmospheric forcing in regional climate simulations
… of numerical experiments to contrast surface and atmospheric forcing in regional climate simulations. Results of the first paper showed that a transient increase in soil moisture enhanced domain total rainfall. The increase in soil moisture enhanced local rainfall when the lower atmosphere was …
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The Response of an Idealized Continental Shelf to Atmospheric Forcing
<p>The response of continental shelf water to cooling and wind stress is investigated using a two-dimensional numerical model. The topography of the east coast continental shelf was idealized by connecting a shallow (50 m) rectangular nearshore basin to a deeper (100 m) rectangular offshore basin. …
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Near-inertial and thermal to atmospheric forcing in the North Atlantic Ocean
… upper ocean response to wind and buoyancy forcing in the North Atlantic Ocean. First, the seasonal kinetic energy variability of near-inertial motions observed with a moored profiler is described. Observed wintertime enhancement and surface intensification of near-inertial kinetic energy …
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Near-inertial and thermal upper ocean response to atmospheric forcing in the North Atlantic Ocean
… upper ocean response to wind and buoyancy forcing in the North Atlantic Ocean. First, the seasonal kinetic energy variability of near-inertial motions observed with a moored profiler is described. Observed wintertime enhancement and surface intensification of near-inertial kinetic energy …
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Understanding the role of stochastic atmospheric forcing in tropical Pacific decadal variability and ENSO modulation
… extratropics through integration of stochastic atmospheric forcing by the ocean mixed layer. However, it remains unclear how the extratropical signal propagates into the tropical Pacific and forms a basin-wide anomaly pattern and how the resultant tropical Pacific decadal variability (TPDV) …
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An investigation of momentum exchange parameterizations and atmospheric forcing for the Coastal Mixing and Optics Program
This thesis presents an investigation of the influence of surface waves on momentum exchange. A quantitative comparison of direct covariance friction velocity measurements to bulk aerodynamic and inertial dissipation estimates indicates that both indirect methods systematically underestimate the …
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An investigation of momentum exchange parameterizations and atmospheric forcing for the Coastal Mixing and Optics Program
This thesis presents an investigation of the influence of surface waves on momentum exchange. A quantitative comparison of direct covariance friction velocity measurements to bulk aerodynamic and inertial dissipation estimates indicates that both indirect methods systematically underestimate the …
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Global barotropic variability of the ocean in response to atmospheric forcing based on multichannel regression and Kalman filter techniques
… in the analysis of the global ocean response to atmospheric forcing. We use two different approaches to test the hypothesis that the global sea surface height variability can be adequately described by linear barotropic ocean models: the multichannel regression and the optimal smoothing …
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Global barotropic variability of the ocean in response to atmospheric forcing based on multichannel regression and Kalman filter techniques
… Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 1996.
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Coastal ocean variability off the coast of Taiwan in response to Typhoon Morakot : river forcing, atmospheric forcing, and cold dome dynamics
The ocean is a complex, constantly changing, highly dynamical system. Prediction capabilities are constantly being improved in order to better understand and forecast ocean properties for applications in science, industry, and maritime interests. Our overarching goal is to better predict the ocean …
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Coastal ocean variability off the coast of Taiwan in response to typhoon Morakot : river forcing, atmospheric forcing, and cold dome dynamics
The ocean is a complex, constantly changing, highly dynamical system. Prediction capabilities are constantly being improved in order to better understand and forecast ocean properties for applications in science, industry, and maritime interests. Our overarching goal is to better predict the ocean …
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The role of short-term atmospheric variability in shaping Lagrangian transport in the Southern Benguela
… set-up. Simulation A is forced with a6 hourly atmospheric forcing (surface heat and fresh-water fluxes and wind stress). In simulation B and C, the atmospheric forcing is low-pass filtered with 5 days and 30 days cut-off periods. The ocean model outputs are averaged and saved at deferent …
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Forced synoptic coastal-trapped waves along the southern African coastline
… theory. In this dissertation, an analysis of atmospheric pressure and sea level data from 1980 to 1990, a scale analysis of the equations of motion and numerical modelling are used to characterise the subinertial coastal-trapped wave motions off the west coast and south coasts of southern …
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Exploring the Influence of Diurnal Forcing on Tidal Inlet Exchange and the Impact on the movement of Oxygen Depleted Waters in the Mississippi Sound and Bight Region
… alone. A physical model using high-resolution atmospheric forcing has been developed which provides insights into the physical interactions in this coastal marine system heavily influenced by freshwater plumes and diurnal wind forcing. Twin experiments using a high temporal (hourly) and spatial …
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Atlantic Ocean circulation at the Last Glacial Maximum : inferences from data and models
This thesis focuses on ocean circulation and atmospheric forcing in the Atlantic Ocean at the Last Glacial Maximum (LGM, 18-21 thousand years before present). Relative to the pre-industrial climate, LGM atmospheric CO2 concentrations were about 90 ppm lower, ice sheets were much more extensive, and …
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Atlantic Ocean circulation at the last glacial maximum : inferences from data and models
This thesis focuses on ocean circulation and atmospheric forcing in the Atlantic Ocean at the Last Glacial Maximum (LGM, 18-21 thousand years before present). Relative to the pre-industrial climate, LGM atmospheric CO₂ concentrations were about 90 ppm lower, ice sheets were much more extensive, and …
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Atmospheric drivers of ice drift in the Antarctic marginal ice zone
… been identified as the primary effect of atmospheric forcing. When these lower frequencies were filtered out using the Butterworth high-pass filter it allowed the inertial oscillations to become more significant within the wavelet power spectrum, where it can be seen that these inertial …
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Variability of zooplankton and sea surface temperature in the Southern Ocean
… can be explained as a linear response to local atmospheric forcing by the Southern Annular Mode and remote forcing by El-Nifio southern oscillation, in the presence of advection by a mean flow.
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Ensemble forecasting in the Mediterranean sea
… the ocean response to uncertainty only in the forcing. The ECMWF Ensemble Prediction System (EPS) surface winds are also used to generate a reference ocean ensemble to evaluate the performance of the BHM method that proves to be eective in concentrating the forecast uncertainty at the ocean …
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Tidal band current variability over the Northern California continental shelf
… variability is discussed, and the role played by atmospheric forcing is examined in detail. In Chapter III, the barotropic semidiurnal tidal currents over the shelf are described, and the effect of small-scale bumps in the coastline is evaluated. The baroclinic semi diurnal tidal currents, which …
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