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.
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Showing 1 to 20 of 27 for “"Air-sea interaction"”.
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An experiment in large-scale air-sea interaction
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Meteorology, 1979.
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Air-sea interaction at contrasting sites in the eastern tropical Pacific : mesoscale variability and atmospheric convection at 10°N
The role of ocean dynamics in driving air-sea interaction is examined at two contrasting sites on 125°W in the eastern tropical Pacific Ocean using data from the Pan American Climate Study (PACS) field program. Analysis based on the PACS data set and satellite observations of sea surface …
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Air-sea interaction at contrasting sites in the Eastern Tropical Pacific : mesoscale variability and atmospheric convection at 10°N
The role of ocean dynamics in driving air-sea interaction is examined at two contrasting sites on 125°W in the eastern tropical Pacific Ocean using data from the Pan American Climate Study (PACS) field program. Analysis based on the PACS data set and satellite observations of sea surface …
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Investigations of scalar transfer coefficients in fog during the Coupled Boundary Layers and Air Sea Transfer experiment : a case study
… for this thesis used data taken primarily at the Air-Sea Interaction Tower (ASIT) during the Coupled Boundary Layers and Air-Sea Transfer (CBLAST) Experiment 2003 from the 20-27 August 2003. Other data from the shore based Martha's Vineyard Coastal Observatory (MVCO) and moored buoys in the …
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Numerical Modelling of Breaking Waves under the Influence of Wind
Wave breaking plays an important role in air-sea interaction, surf zone dynamics, nearshore sediment transport, marine hydrodynamics, and wave-structure interaction. When the wind is blowing over water waves, it not only enhances the exchanges of heat, mass and momentum on the air-water interface, …
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Quantitative imaging of the air-water flow fields formed by unsteady breaking waves
… measuring the velocity fields on the air and water side of unsteady breaking waves is presented. The method is applied to breaking waves to investigate the physics of the air and water flow fields to further our knowledge of the impact of wave breaking on air-sea interaction. The …
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On the observed and simulated responses of the extratropical atmosphere to surface thermal forcing
… of the climate system, and its closely-coupled interactions with the atmosphere system have wide-ranging impacts on the large-scale and local patterns of climate and weather variability from one region of the globe to another. Improvements in the resolution of satellite observations and …
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Energetics and similarity theory in the wave-affected atmospheric boundary layer
… Oceanographic Institution’s (WHOI) Buzzards Bay Air-Sea Interaction Tower (BB-ASIT). BB-ASIT held a vertical co-located array of over 30 sensors spanning the ocean and the atmosphere, and twelve of those sensors are used in this analysis to examine atmospheric fluxes occurring within the …
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The structure of the upper ocean, atmosphere and heat fluxes - Tropical Indian Ocean
Sea surface temperatures in the tropical Indian Ocean have been shown to be inversely related to South African summer rainfall, making advanced predictions of this rainfall practicable. Such predictability has enormous potential economic benefits. However, these predictions have been purely …
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Forecasting Wind Direction Across Very Short and Short Term Time Horizons for Wind Turbine Control
… by the Woods Hole Oceanographic Institute Air-Sea Interaction Tower to assess the predictive performance of three methods for deterministic wind direction forecasting: persistence, autoregressive moving average (ARMA), and ridge regression. The models were tested on several time horizons …
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Investigations of scalar transfer coefficients in fog during the Coupled Boundary Layers and Air Sea Transfer Experiment : a case study
… for this thesis used data taken primarily at the Air-Sea Interaction Tower (ASIT) during the Coupled Boundary Layers and Air-Sea Transfer (CBLAST) Experiment 2003 from the 20-27 August 2003. Other data from the shore based Martha's Vineyard Coastal Observatory (MVCO) and moored buoys in the …
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On the role of high frequency waves in ocean altimetry
<p>This work mines a coastal and open ocean air-sea interaction field experiment data set where the goals are to refine satellite retrieval of wind, wind stress, and sea level using a microwave radar altimeter. The data were collected from a low-flying aircraft using a sensor suite designed to …
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Observations of the Upper Ocean from Autonomous Platforms during the Passage of Extratropical Cyclone Epsilon (2020)
Hurricane Epsilon (2020) was a late-season, category-3 tropical cyclone that underwent extratropical transition and became Extratropical Cyclone Epsilon on 26 October. The upper ocean response to the passage of the storm was observed by three types of autonomous platforms: the eXpendable Spar buoy, …
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Synthetic aperture imaging for three dimensional resolution of fluid flows
… in a variety of engineering applications from air-sea interaction to Naval hydrodynamics to turbulence and beyond. The imaging system is based upon synthetic aperture (SA) imaging, which has received much attention in the computer vision community recently. In focus images from an array of …
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Sea Spray-Mediated Fluxes at Extreme Wind Speeds
… of intensity forecasts depends heavily on the air-sea interaction scheme. However, at extreme wind speeds the air-sea transition layer becomes replete with sea spray such that there is no longer a well-defined interface. This means that the microphysics of sea spray plays a critical role in …
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Oceanic response observations due to passing tropical cyclones: an assessment of drag and sea spray parameterizations
… positive wind stress curl imparted on the sea surface. In August 2015, Air-Launched Autonomous Micro Observer float 9077 was intercepted by Hurricane Ignacio and its temperature measurements revealed a 40 m depression of the 26°C isotherm ahead of the device’s closest point of approach with …
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Observational studies of scatterometer ocean vector winds in the presence of dynamic air-sea interactions
… scatterometer retrievals in areas of complex air-sea dynamics without, perhaps, sufficient justification from supporting observations.</p><p>This dissertation uses satellite data, in situ measurements, and model simulations to evaluate these assumptions. Robustness is assured by using multiple …
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Azimuth Modulation of the Radar Backscatter at Near-Normal Incidence
<p>Radar observations of the ocean surface are becoming increasingly important. Common applications are wind retrieval and global weather forecasting and characterization. Because of the common use of ocean radar measurements, it is important to understand the sensitivity of the backscatter to both …
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Interannual middle-latitude atmosphere-ocean interactions
This thesis discusses the interaction of atmosphere and ocean in midlatitudes on interannual and decadal timescales. We investigate the extent to which mutuallycoupled atmosphere-ocean feedback can explain the observed coupled variability on these timescales, and look for preferred modes of …
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Understanding of weak turbulence of capillary waves
… of an ensemble of waves in weakly nonlinear interactions. In the wavenumber k domain, the WTT steady-state analytical solution yields a power-law inertial-range spectrum I - ka, with a constant energy flux P from large forcing scales to small dissipative scales. Over the years, this result …
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