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Development Of A Web-Based Gis For Groundwater Exploration In Arid Lands, Nakul Manocha
Development Of A Web-Based Gis For Groundwater Exploration In Arid Lands, Nakul Manocha
Masters Theses
A three-fold exercise was conducted to assess the groundwater potentiality in the Eastern Desert (ED) of Egypt. First, a database was generated to host all relevant data sets in a GIS environment for a better understanding of the spatial relationships between these data sets. Co-registered digital mosaics were generated from relevant data sets including remote sensing (e.g., Landsat TM, SIR-C, SRTM, TRMM), geochemical (solute concentrations, O and H stable isotope composition), geological (geologic maps), and hydrological (lithology, depth to water table) data sets. Second, a web-based GIS interface (ArcIMS) was developed to provide a vehicle for data analysis, visualization, and …
Investigating Nickel Partitioning In A Contaminant Aquifer, Suama Ndengu
Investigating Nickel Partitioning In A Contaminant Aquifer, Suama Ndengu
Masters Theses
Improved prediction of the transport and bioavailability of metals in contaminated sediments demands a better quantitative understanding of how metals partition between aqueous solutions and mineral phases. This research examines the partitioning of nickel in a contaminated aquifer from Grand Rapids, Ml. Contaminated aquifer sediments were examined using the five step Tessier et al. (1979) operationally defined sequential extraction procedure to determine the solid phase distribution of nickel in the aquifer sediments. Models used to guide remediation efforts at the contaminated site assume that Ni behavior can be predicted based on Ni adsorption onto ferrihydrite (HFO). Although sequential extraction results …
Seasonal Variability In Trace Metal Speciation And Vertical Redox Stratification Of Freshwater Lake And Marsh Sediments In The Kalamzoo River Watershed (Mi, Usa), Noah Tumusiime Ndenga
Seasonal Variability In Trace Metal Speciation And Vertical Redox Stratification Of Freshwater Lake And Marsh Sediments In The Kalamzoo River Watershed (Mi, Usa), Noah Tumusiime Ndenga
Masters Theses
This research was aimed at: 1) quantifying redox-sensitive parameters in order to study redox stratification of the upper freshwater sediments at Asylum Lake and Kleinstuck Marsh, 2) quantifying the speciation of metals (e.g., Pb, Mn, Fe, Cr, Cu, Zn, Co and Cd), particularly with respect to their association with Fe and Mn (hydr)oxide phases, and 3) assessing changes in redox stratification and metal speciation as a function of season in the sediments. Both the solid phase and sediment pore waters were collected to a depth of ~50cm. Pore waters were analyzed for redox-sensitive species and the sediment solid phase was …
Glacial Stratigraphy And Surficial Geology Of The Decatur, Lawrence, And Paw Paw U.S.G.S.7.5 Minute Quadrangles In Van Buren County, Michigan, Brian Bird
Masters Theses
The modern day landscape of Van Buren County Michigan was created by the advance and retreat of glaciers from about 13,000 to 20,000 years ago. The Lake Michigan Lobe of the Laurentide Ice Sheet sculpted southwest Michigan most recently. The sediments deposited by the glacier include diamicton, outwash sediments, and lacustrine deposits. The build up of sediment by the glaciers led to the construction of particular features such as moraines, till plains, and outwash fans. The huge amount of meltwater from the glaciers led to the erosion of channels throughout the area. In the area of this investigation the Ganges …