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Full-Text Articles in Physical Sciences and Mathematics
Rapid: Assessing Tsunami Impacts On The Benthic Community Of Robinson Crusoe Island, Richard Wahle, Peter Petraitis
Rapid: Assessing Tsunami Impacts On The Benthic Community Of Robinson Crusoe Island, Richard Wahle, Peter Petraitis
University of Maine Office of Research Administration: Grant Reports
This RAPID project will assess the subtidal ecological impacts of the tsunami that struck Robinson Crusoe Island on 27 February 2010 with support from the Biological Oceanography Program and the Office of International Science and Engineering/Americas. It will take advantage of baseline data collected as part of an ongoing Chilean research project. Robinson Crusoe Island belongs to the Juan Fernandez archipelago, some 600 km west of the coast of Chile in the southeast Pacific. The island group is unique for its high level of marine and terrestrial endemism, including a fishery for the prized Robinson Crusoe Island lobster, Jasus frontalis. …
Late 20th Century Hydrologic Change In Western North America: Regional Impacts And The Role Of Climate, Shaleen Jain
Late 20th Century Hydrologic Change In Western North America: Regional Impacts And The Role Of Climate, Shaleen Jain
University of Maine Office of Research Administration: Grant Reports
Hydroclimatic variations and change directly impact the freshwater supplies in western North America. Streamflow in this region has shown increased variability of annual flow volumes and increasing synchroneity in the largest basins in the west towards the end of last century. As land-use change seems to play a lesser role, the PI will study the sensitivity of the western North American winter precipitation and related streamflow to El Nino-Southern Oscillation variations. The PI will use observations and multi-model ensemble integrations to study the decadal variations. The broader impact of this project will be an increase of the scientific knowledge required …
Collaborative Research: Integrated Geophysical And Hydrogeologic Study Of A Large Maine Peatland, Andrew S. Reeve
Collaborative Research: Integrated Geophysical And Hydrogeologic Study Of A Large Maine Peatland, Andrew S. Reeve
University of Maine Office of Research Administration: Grant Reports
Solute transport controls vegetation and water chemistry gradients in peatlands. Dispersive mixing and advective transport in peat will be measured in laboratory column experiments and in a natural gradient tracer test in a peatland to determine the relative importance of these processes. We will assess the retardation of solutes by matrix diffusion and the applicability of a dual-domain model. Electrical geophysical methods, verified through direct measurements, will be used to track tracer migration.
An extensive geophysical and hydrogeologic characterization of the peatland will map variability in peat depth across the basin and identify stratigraphy. Ground-penetrating radar and resistivity/induced polarization imaging …