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Full-Text Articles in Physical Sciences and Mathematics
Vegetation, Rainfall, And Pulsing Hydrology In The Pantanal, The World's Largest Tropical Wetland, Sarah J. Ivory, Michael M. Mcglue, Stephanie Spera, Aguinaldo Silva, Ivan Bergier
Vegetation, Rainfall, And Pulsing Hydrology In The Pantanal, The World's Largest Tropical Wetland, Sarah J. Ivory, Michael M. Mcglue, Stephanie Spera, Aguinaldo Silva, Ivan Bergier
Earth and Environmental Sciences Faculty Publications
Wetlands provide valuable ecosystem services and play a central role in global carbon cycling. Changes in rainfall and the flood-pulse are likely to disrupt the processes that maintain these landscapes; further, landscape modification may dramatically alter wetlands and promote terrestrialization. The Pantanal, South America, is the world's largest wetland due to flooding along the Upper Paraguay River. Predicting how water resources in the Pantanal may change is problematic due to a complex drainage network, resulting in the out-of-phase timing of rainfall and the flood pulse. We use remote sensing data of vegetation and climate to better understand the relationships among …
Validating A Universal Model Of Particle Transport Lengths With Laboratory Measurements Of Suspended Grain Motions, Robert C. Mahon, Brandon Mcelroy, Suleyman Naqshband
Validating A Universal Model Of Particle Transport Lengths With Laboratory Measurements Of Suspended Grain Motions, Robert C. Mahon, Brandon Mcelroy, Suleyman Naqshband
Earth and Environmental Sciences Faculty Publications
t The mechanics of sediment transport are of fundamental importance for fluvio-deltaic morphodynamics. The present study focuses on quantifying particle motions and trajectories across a wide range of flow conditions. In particular, a continuous model is presented that predicts particle travel distances for saltation and suspension based on Rouse number and relative grain roughness. By utilizing a series of eight video cameras in a plexiglass flume direct measurements of the distributions of particle travel distances (excursion lengths) were obtained. To this end, experiments were carried out in dark under black lights with fluorescent painted plastic and quartz sand particles. For …