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From October 2007 through September 2010, the U.S. Geological Survey (USGS) in cooperation with the Tennessee Duck River Development Agency monitored water quality at 24 sites in the Upper Duck River Watershed. Water samples were collected and analyzed for carbonate hardness, acid neutralizing capacity, chloride, ammonia, nitrate, nitrite, phosphorus, boron, bromine, Enterococci and Escherichia coli (E. coli). A handheld sonde was also used to measure specific conductance, water temperature and turbidity. At a subset of sites, streamflow and selected water-quality characteristics (including some combination of turbidity, specific conductance, water temperature, and dissolved oxygen) were continuously monitored and...
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The southeastern U.S. contains a unique diversity of ecosystems that provide important benefits, including habitat for rare wildlife and plants, improved water quality, and recreation opportunities. Understanding how climate change will affect these ecosystems is vital for knowing how best to protect them and the services they supply. The goal of this project was to assess the climate change vulnerability of 12 key ecosystems in the southeastern U.S. and Caribbean, ranging from Caribbean coastal mangrove to Nashville Basin limestone glade and woodland. Scientists used the existing scientific literature and geospatial analysis to determine each ecosystem’s sensitivity to changes in climate, its exposure level to...
Categories: Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: 2012,
CASC,
Climate change,
Completed,
FY 2012, All tags...
Forests,
Forests,
Landscapes,
Landscapes,
Plants,
Plants,
Projects by Region,
Science Tools For Managers,
Science Tools for Managers,
Science Tools for Managers,
Southeast,
Southeast CASC,
Southeast Climate Science Center,
State of the Science,
State of the Science,
Vulnerability,
Water, Coasts and Ice,
Water, Coasts and Ice,
Wetlands,
Wetlands,
Wildlife and Plants,
Wildlife and Plants,
ecosytems, Fewer tags
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The Nacatoch Sand in northeastern and southwestern Arkansas and the Tokio Formation in southwestern Arkansas are sources of groundwater for agricultural, domestic, industrial, and public use. Water-level altitudes measured in 51 wells completed in the Nacatoch Sand and 42 wells completed in the Tokio Formation during 2014 and 2015 were used to compile potentiometric-surface maps of the two areas. Aquifers in the Nacatoch Sand and Tokio Formation are hereafter referred to as the Nacatoch aquifer and the Tokio aquifer, respectively. Potentiometric surfaces show that groundwater in the Nacatoch aquifer flows southeast toward the Mississippi River in northeastern Arkansas. Groundwater flow direction is towards the south...
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