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Showing 1 to 12 of 12 for “"Susquehanna River"”.
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Trace metals in upper Susquehanna River ecosystem: environmental distribution, urban impacts, and interaction with sediment materials
<p>Environmental samples from the Upper Susquehanna River Basin [river water (RW) and bottom sediments, municipal wastewaters and sewage sludge, algae and fish] were collected and analyzed for the following Trace Metals (TMs), as appropriate: Pb, Cd, Co, Ni, Cr, Cu, Zn, and total and inorganic Hg. …
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Nitrogen biogeochemistry in Binghamton, NY, a medium-sized urban ecosystem
… N exported from eight urban streams to the Susquehanna River, which runs through the Binghamton area. The point-source N fluxes we measured from the B-JC WWTP were high because its function was impaired during the study, causing major environmental impacts on the Susquehanna River. …
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Evaluating Changes in Terrestrial Hydrological Components Due to Climate Change in the Chesapeake Bay Watershed
… are developed for future scenarios along the Susquehanna River including the City of Harrisburg in Pennsylvania. The HEC-RAS 2D model is calibrated and evaluated against the high-water marks from major historical flood events and the stage-discharge relationship of the available USGS …
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Provenance of Sands Within the Lower Chesapeake Bay Based on Ilmenite Composition
… input is probably minor except from the James River, which may serve as a local source of sands in the Thimble Shoals area. Sands in the western half of the bay are primarily derived from the erosion of the adjacent shoreline. In contrast, the eastern half of the bay has two major sources of …
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On evaluating small-scale variations of hydrologic processes in time and space
… in a 7.29 km2 sub-watershed within the Susquehanna River Basin in Pennsylvania. Rasterized data sets such as topographic data, soil data, and land use/land cover data are used as input to the HMS. Geographic Information System package is used to preprocess the raster data sets. …
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Crystalline bedrock geology of the lower Susquehanna Gorge: Conowingo to Havre de Grace, Maryland
The crystalline bedrock of the lowermost Susquehanna River Gorge, Conowingo to Havre de Grace, Maryland, consists of two discrete structural blocks, each with its own unique history prior to juxtaposition. The southern Havre de Grace Block is a Cambrian magmatic arc association (James Run Formation …
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Effects of food on bald eagle distribution and abundance on the northern Chesapeake Bay: an experimental approach
… winter concentration areas on the northern Bay (Susquehanna River and the Eastern Shore) and then to Blackwater National Wildlife Refuge (BWNWR) and vicinity (winter concentration area on the lower Bay) was tested. By supplying fish (mostly gizzard shad) ad libidum each morning at 2 sites from 28 …
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Flow Dynamics in Large River Basins: Self -Similar Network Structure and Scale Effects
… interaction between runoff generation, river-network geomorphology and the hydrodynamics of channel flow. In this research, the processes which contribute to the variance of the network hydrologic response are investigated by coupling the river network organization with hydraulic …
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Voltammetric and other properties of methylmercury compounds and distribution of methylmercury in environmental samples
… <p>Analyses of assorted fish from the Upper Susquehanna River basin revealed that ~83% of the mercury in them was methylmercury. Results ranged from about 0 - 1.2 ppm Hg (as methylmercury) and a high methylmercury accumulation in young predator fish (walleyes, smallmouth bass) seemed to taper …
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Tectonics of the lower Susquehhanna River region, southeastern Pennsylvania and northern Maryland: late proterozoic rifting to late paleozoic dextral transpression
… a pair of conjugate cleavages in the lower Susquehanna River region, and determined orientations of the principal compressive stresses suggest Late Paleozoic extension, possibly related to gravitational collapse. Previously published orthogonal collision and tectonic assembly models for the …
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Quantifying the Impact of Climate Change on Water Availability and Water Quality in the Chesapeake Bay Watershed
… the model was then scaled-up to the entire Susquehanna River basin and was used to evaluate if agricultural best management practices (BMPs) can offset the impact of climate change. Agricultural BMPs are increasingly and widely employed to reduce diffuse nutrient pollution. Climate change …
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Foraging ecology of bald eagles on the northern Chesapeake Bay with an examination of techniques used in the study of bald eagle food habits
… by eagles below a hydroelectric dam on the Susquehanna River in November and December, and also were taken frequently throughout the study area during a winter when ice cover was extensive. Shad were not commonly available during a milder winter. From April through September, bald eagles fed …