We use the Global Multi-resolution Terrain Elevation Data 2010 (GMTED, 7.5 arc-seconds) and Landsat Maps Global Surface Water (GSW, 1 arc-seconds) processed by GRASS-GIS hydrological modules to derive a fully standardized stream network. The GSW water occurrence was burned into the GMTED surface to force the drainage direction, thereby directing the stream network to pass through the observed w...

Samothraki is a northern Aegean island with poorly studied inland waters. River features show a high degree of naturalness; lotic, lentic and riparian conditions exhibit significant perennial flows with waterfalls, pools and ancient riparian woodlands. In this study, we document surface and ground water quality status based on recent field observations, data collection and analyses. The island ...

Measurements of groundwater–surface water exchange at three wetland stream sites were related to patterns in benthic productivity as part of the US Geological Survey’s Northern Temperate Lakes–Water, Energy and Biogeochemical Budgets (NTL–WEBB) project. The three sites included one high groundwater discharge (HGD) site, one weak groundwater discharge (WGD) site, and one groundwater recharge (GR...

A primary sewage treatment plant discharges its effluents into Butler Ditch, Oak Openings, Lucas County, Ohio. A marsh habitat near the discharge outlet, high turbidity, sludge covering the stream bed and pungent odor gave reason to believe that the effluent from the sewage treatment plant contaminated the ditch. Water and stream sediment samples were collected from 24 sample locations over a 2...

Effects of different land uses on densities of Escherichia coli, enterococci, and Clostridium perfringens in the water and soil of a tropical watershed were investigated. Densities of fecal indicator bacteria (FIBs) in the watershed exhibited a clear land-use dependency in the stream water. Significantly higher concentrations were detected in the urban portion of the stream (417, 420, and 44 CF...

[1] In many industrialized regions of the world, atmospherically deposited sulfur derived from industrial, nonpoint air pollution sources reduces stream water quality and results in acidic conditions that threaten aquatic resources. Accurate maps of predicted stream water acidity are an essential aid to managers who must identify acid-sensitive streams, potentially affected biota, and create re...

Golf courses are an increasingly prominent feature across the urban landscape. Most courses contain streams that pass through the course grounds and have the potential to chemically, biologically, and physically alter these streams and their aquatic ecosystems. This study assessed the impact of five golf courses in Greenville, South Carolina on stream water temperature. Courses were selected th...

Characterization of stream flow is essential to water resource management, water supply planning, environmental protection, and ecological restoration; while air temperature variation due to climate change can exacerbate stream flow and add instability to the flow. In this study, the wavelet analysis technique was employed to identify temporal trend of air temperature and its impact upon forest...