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 122 for “"Basin-scale"”.
-
Study of basin scale acoustic transmissions
A basin-scale acoustic tomography experiment was conducted in the northeast Pacific from May 1987 to September 1987. In this thesis, the stability of the forward model is analyzed. There are large non-linearities in the changes in travel time between ray paths for the four seasons . I constructed a …
-
Basin-scale tidal measurements using acoustic tomography
Travel-times of acoustic signals were measured between a bottom-mounted source near Oahu and four bottom-mounted receivers located near Washington, Oregon, and California in 1988 and 1989. This paper discusses the observed tidal signals. At three out of four receivers, observed travel times at M2 …
-
Basin-scale spatiotemporal analysis of hydrologic floodplain connectivity
Floodplain inundation often provides water quality benefits by trapping sediment and biogeochemically transforming other pollutants. Hydrologic floodplain connectivity is a measure of water exchanges and interactions between the main channel and the floodplain via surface (inundation) and …
-
Quantifying channelized submarine depositional systems from bed to basin scale
… and outcrop exposures to study turbidites at scales ranging from bed to basin. At the basin scale, I develop a method to estimate the time-frame over which sedimentation and subsidence come into equilibrium. Using seismic data from the Fisk Basin, Gulf of Mexico, I find that, during periods of …
-
Quantifying channelized submarine depositional systems from bed to basin scale
… and outcrop exposures to study turbidites at scales ranging from bed to basin. At the basin scale, I develop a method to estimate the time-frame over which sedimentation and subsidence come into equilibrium. Using seismic data from the Fisk Basin, Gulf of Mexico, I find that, during periods of …
-
Drainage Timescale Estimates and Storage Change Analysis on A Basin Scale
… travel time depicts the characteristic timescale of the catchment drainage process and is therefore also known as drainage timescale (K). Catchment drainage timescale can be estimated empirically from recession flow analysis as well as from hydraulic theory. Applicability of is critical in …
-
Modelling water budget at a basin scale using JGrass-NewAge system
… are useful to understand the water balance of a basin, providing information for water resource forecast, assessment, and management. The effectiveness of the models in estimating the freshwater space-time availability and variability, however, depends on concurrent and explicitly modelling of …
-
An investigation of basin-scale controls on upper ocean export and remineralization
… deep ocean, where it can be sequestered on timescales of centuries to millennia. Climate change is predicted to decrease the efficiency of the global BCP, however, the magnitude and timescale of this shift is largely uncertain and will likely impact some areas of the global ocean more …
-
An investigation of basin-scale controls on upper ocean export and remineralization
… deep ocean, where it can be sequestered on timescales of centuries to millennia. Climate change is predicted to decrease the efficiency of the global BCP, however, the magnitude and timescale of this shift is largely uncertain and will likely impact some areas of the global ocean more …
-
Basin-scale modeling of nutrient impacts in the Eel River Watershed, Plymouth, Massachusetts
Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2002.
-
Understanding the Limits of Residential Water Conservation through Generalized, Basin-Scale System Dynamics
… available for continued growth, the impacts on a basin-wide scale have yet to be established. By changing the relative water demand for indoor and outdoor uses within a municipality, the amount of water being consumed can thereby reduce the effluent available for downstream communities. This …
-
Towards basin-scale in-situ characterization of sea-ice using an Autonomous Underwater Glider
… Glider (AUG) architecture that is intended for basin-scale unattended survey of Arctic sea-ice. The distinguishing challenge for AUG operations in the Arctic environment is the presence of year-round sea-ice cover which prevents vehicle surfacing for localization updates and shore-side …
-
Study On the Basin Scale Salt Exchange In the Indian Ocean Using Satellite Observations and Model Simulations
… component in the exchange of salt in the basins. Results of depth integrated transport using HYCOM output show southward salt transport in the surface waters and northward salt transport in bottom waters. This study emphasizes that</p> <p>HYCOM SSS is a good proxy to compare the …
-
The role of soil moisture and weather patterns for flood occurrence and characteristics at the river basin scale
Flood generation at the scale of large river basins is triggered by the interaction of the hydrological pre-conditions and the meteorological event conditions at different spatial and temporal scales. This interaction controls diverse flood generating processes and results in floods varying in …
-
Quantifying high-resolution hydrologic parameters at the basin scale using InSAR and inverse modeling, Las Vegas Valley, NV
… aquifer and conductance (CR) of the basin-fill faults for the entire Las Vegas basin, and to investigate future trends of land subsidence in Las Vegas Valley. This dissertation consists of three separate stand-alone chapters. Chapter 2 presents a discrete adjoint parameter estimation …
-
A spatial decision support system for basin scale assessment of improved management of water quantity and quality in stream-aquifer systems
Challenges in river basin management have intensified over the years, with expanding competition among water demands and emerging environmental concerns, increasing the complexity of the decision making framework. A State-of-the-art spatial-decision support system (River GeoDSS) is developed herein …
-
From basin to reservoir models: an integrated workflow
… On the contrary, the integration of regional (or basin) scale information is commonly performed in a qualitative or semi-quantitative way, for example through the definition of regional property trends. This qualitative or semi-quantitative approach can strongly limit the assessment of the impact …
-
Farm-scale Water Management in Adaptation to Climate Change in Morocco
… relies on large reservoirs built to achieve basin-scale water resources management, small-scale reservoirs are investigated here as a possible way to adapt to these dryer conditions and to collect overland flow for irrigation purposes before its evaporation or infiltration into the ground. We …
Page 1 of 7