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 215 for “"inundation"”.
-
Collapse of stone column foundations due to inundation.
… foundations, in collapsible soil subjected to inundation. Laboratory tests were carried out, under controlled conditions of sand density and surcharge pressure, using six different types of foundation supports (a sand column, sand columns confined by T700, T1000, T1500 or T2000 geofabrics and a …
-
Critical Review of Inundation Mapping Procedures for Floodplain Management
Inundation mapping is a major component of floodplain management, providing critical information as to the consequences of potential failures of flood control structures, such as dams. To develop inundation maps, a dam and river system are modeled with engineering computer programs, and a …
-
Tidal Wetland Inundation and Vegetation Phenology from Space: A Synthesis of Approaches for Characterizing Ecological Status and Inundation Dynamics in Tidal Wetlands with Remote Sensing Observations
… characterization, and assessment of tidal marsh inundation patterns. Chapter 5 summarizes the preceding chapters and highlights future research directions.</p> <p>The primary research objective of Chapter 2 is the mapping and study of tidal marshes of the Chesapeake and Delaware Bays. This …
-
Mapping and Modeling the Seattle Fault Tsunami Inundation in Puget Sound
… of Puget Sound are susceptible to tsunami inundation from multiple sources. Two sources of potential tsunami hazard that threaten the region are earthquakes on crustal faults in the Puget Lowlands, or earthquakes originating on the Cascadia subduction zone. This study investigated two …
-
Inundation Flooding in Urban Environments using on-lattice Density Functional Theory
… theory (DFT) for evaluating the risk of inundation flooding in urban environments. Originally developed in Materials Science for porous materials this DFT model is herein upscaled from the nanoscale to the city scale. We show that the strength of such an equilibrium-based approach, which …
-
QUANTIFYING EFFECTS OF SEASONAL INUNDATION ON METHANE FLUXES FROM FORESTED FRESHWATER WETLANDS
… scales. In Chapter 1, I show the importance of inundation extent and duration as major drivers of wetland methane emissions, that methane fluxes have a non-linear relationship with water level, and that methane fluxes are higher when water levels are falling rather than rising. In Chapter 2, I …
-
Field and numerical investigations of wave transformation and inundation on atoll islands
… rise (SLR) on shoreline wave energy, runup and inundation within atoll environments. Field data from Fatato Island indicate clear tidal controls on sea swell (SS) waves and setup at the reef flat and shoreline, but identify no tidal influence on infragravity (IG) waves that were consistently …
-
Evaluation of Tsunami Design Codes and Recommendations for Bridges Susceptible to Tsunami Inundation
Much of the past tsunami research has focused on inundation modeling, evacuation strategies and to a lesser extent, building design. Although many of the bridges that lie within possible tsunami inundation zones provide critical lifelines to coastal communities, the effects of tsunamis on …
-
Impacts of inundation and season on greenhouse gas fluxes from a low-order floodplain
The global climate is changing and much of this is attributed to the greenhouse effect, which has been exacerbated by increased anthropogenic releases of greenhouse gases (GHGs). However, important GHGs, carbon dioxide (CO2), nitrous oxide (N2O), and methane (CH4), are produced naturally in the …
-
Stratigraphic and microfossil evidence of repeated late Holocene tsunami inundation at Sitkalidak Island, Alaska
… and microfossil evidence of repeated tsunami inundation over the last ~400 years at Sitkalidak Island, located 0.5 km off the coast of south-central Kodiak Island. Peat cores collected from an estuary in southern Sitkalidak Island reveal three anomalous, laterally continuous sand beds with …
-
Modeling inundation impacts on transportation network performance : a GIS and four-step transportation modeling analysis
… of transport systems during, or shortly after inundation events. Inundation affects the availability and quality of network assets (i.e. Transportation Supply) and inhabitable land, which produces and attracts transportation users (i.e. Demand). In this thesis, I apply an altered four-step …
-
Cumulative Impacts of Stream Restoration on Watershed-Scale Flood Attenuation, Floodplain Inundation, and Nitrate Removal
… and length, on flood attenuation and floodplain inundation dynamics at the watershed scale during more frequent storm recurrence intervals (i.e., 2-year, 1-year, 0.5-year, and monthly). We created a 1D HEC-RAS model to simulate the effects of Stage 0 restoration within a 4th-order generic …
-
Identifying inundation-driven effects among intertidal Crassostrea virginica in a commercially important Gulf of Mexico estuary
… affected since they are dependent on daily inundation and exposure. The eastern oyster Crassostrea virginica is an economically and biologically important sessile intertidal species ranging from Canada to the Gulf of Mexico. Declines and changes in distribution of oyster populations has …
-
Mat Movement in Coastal Louisiana Marshes: Effect of Salinity and Inundation on Vegetation and Nutrient Levels
… differing responses to open-water salinities and inundation, as well as the nutrient distribution in the porewaters and sediment. The effects of the physical differences in the two marsh types on the ocurrence of the dominant emergent vegetation was discussed.</p> <p>The main difference in …
-
Growth Of Bald Cypress Boles And Knees As Influenced By Precipitation And Inundation At Sardis Lake, Mississippi
… distichum) boles and knees in response to inundation and precipitation over small (< 4 m) elevation gradients was examined by measuring interannual growth increments of boles and knees at five sites at Sardis Lake, Mississippi. There was a significant (p=0.019) growth response to …
-
Expanding the stratigraphic record of tsunami inundation along the semi-arid, siliciclastic coast of north-central Chile
… sedimentological evidence of previous tsunami inundation of the site. The 2015 tsunami deposit and an older sand bed ~10 cm lower in the stratigraphy exhibit similar sedimentological characteristics. Both sand beds are composed of poorly to moderately sorted, gray-brown, fine- to medium-grained …
-
Earth Observatory-based Assessment of Spatial and Temporal trends in Inundation Extent in the Barotse Wetland,Western Zambia
… catchment of the Barotse Wetland could alter the inundation extent dynamics and impact the flood dependent ecosystem. There is very little information available in public domain on inundation extent dynamics of the wetland. This study investigated trends in inundation extent in the Barotse Wetland …
Page 1 of 11