Browsing by Subject "Geomorphology"
Now showing items 1-15 of 15
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Analysis and Modeling of Landscape Topography: Statistical Description and Evolution Under Natural and Disturbed Conditions
(2018)The topographical properties of a landscape and their time evolution are key features of the Earth's surface, regulating ecosystem functioning in terms of soil properties as well as water and energy budgets, and creating ... -
Convexity, Concavity, and Human Agency in Large-scale Coastline Evolution
(2014)Coherent, large-scale shapes and patterns are evident in many landscapes, and evolve according to climate and hydrological forces. For large-scale, sandy coastlines, these shapes depend on wave climate forcing. The wave ... -
Evolution of Coastal Landforms: Investigating Sediment Dynamics, Hydrodynamics, and Vegetation Dynamics
(2018)Coastal ecosystems provide a wide range of services including protecting the mainland from the destructive effects of storms, nutrient cycling, water filtration, nurseries for fish and crustaceans, and carbon sequestration. ... -
Exploring Links between Climate and Orogeny by Estimating Uplift with a Physical-Statistical Model
(2013)The Andes Mountains provide a unique setting to study the interplay between climate and geomorphology. The mechanism proposed to describe the evolution of Andean topography is a feedback loop where precipitation erodes the ... -
From the River to the Sea: Modeling Coastal River, Wetland, and Shoreline Dynamics
(2017)Complex feedbacks dominate landscape dynamics over large spatial scales (10s – 100s km) and over the long-term (10s – 100s yrs). These interactions and feedbacks are particularly strong at land-water boundaries, such as ... -
Global Rates of Free Hydrogen (H2) Production by Serpentinization and other Abiogenic Processes within Young Ocean Crust
(2015)The main conclusion of this dissertation is that global H2 production within young ocean crust (<10 Mya) is higher than currently recognized, in part because current estimates of H2 production accompanying the serpentinization ... -
Hydrologic Functioning of Low-Relief, Deep Soil Watersheds and Hydrologic Legacies of Intensive Agriculture in the Calhoun Critical Zone Observatory, South Carolina, USA
(2020)Watersheds are complex, three dimensional structures that partition water between the components of the water balance and multiple storage pools within the watershed. This central function, however, remains poorly understood ... -
Inner Shelf Sorted Bedforms: Long-Term Evolution and a New Hybrid Model
(2014)Sorted bedforms are spatial extensive (100 m-km) features present on many inner continental shelves with subtle bathymetric relief (cm-m) and localized, abrupt variations in grain size (fine sand to coarse sand/gravel). ... -
Land-use legacy dynamics in decades- and centuries-old soils
(2020)This dissertation asks how anthropogenic disturbances are subsequently modified by pedogenic processes over century and decadal-time scales in two soil systems that have, at best, a modicum of previous study. The first ... -
Pedogenesis and Anthropedogenesis on the Southern Piedmont
(2014)This aim of this dissertation is to investigate "pedogenesis" (soil formation and change over multi-millennial timescales with minimal human impact) and "anthropedogenesis" (centurial and decadal soil formation and change ... -
Rethinking Rivers: How Light, Lakes, and Sediment Vary Along the River Continuum
(2018)This dissertation focuses on the riverine water column and the lentic (i.e. lake like) nature of rivers in the context of predominant themes in river science: spatial heterogeneity and scale. River science has developed ... -
Shifting thermal and metabolic regimes in a low gradient, temperate river network
(2021)Rivers transform more than half of the organic inputs they receive from terrestrial systems through metabolic processes. In addition to providing the energetic base to sustain stream food webs, these transformations are ... -
Spatial and Temporal Drivers of Coastal Wetland Formation and Persistence
(2017)Coastal wetlands are complex biogeomorphic systems that provide important ecosystem services, but our current understanding of salt marsh evolution and persistence is based on models and empirical studies of limited spatial ... -
The roles of vegetation, sediment transport, and humans in the evolution of low-lying coastal landforms: Modeling and GIS investigations
(2018)Low-lying coastal landforms such as barrier islands and river deltas are attractive sites for human habitation and infrastructure. They are also highly vulnerable to both climate change impacts such as rising sea levels ... -
Vulnerability of Coal- and Natural Gas-Fired Power Plants to Climate Change
(2018)Modeling studies predict that droughts and hotter water and air temperatures caused by climate warming will reduce the efficiency (η) of thermoelectric plants by 0.12-0.45% for each 1°C of warming. In Chapter 2, we evaluate ...
