Calibration of a Bio-optical Model in the North River, North Carolina (Albemarle–Pamlico Sound): A Tool to Evaluate Water Quality Impacts on Seagrasses

2007 ◽  
Vol 31 (1) ◽  
pp. 177-191 ◽  
Author(s):  
Patrick D. Biber ◽  
Charles L. Gallegos ◽  
W. Judson Kenworthy
2004 ◽  
Vol 49 (3) ◽  
pp. 63-70 ◽  
Author(s):  
T.B. Spruill

Water-quality and hydrologic information were collected along ground-water flow paths from two well-drained and two poorly drained Coastal Plain settings in North Carolina to evaluate the relative effectiveness of riparian buffers in reducing discharge of nitrate to streams. At one well-drained site with a 100 m buffer, little or no effect was detected on surface-water quality by discharging ground water because extensive woody vegetation in the buffer was able to take up not only most nitrate, but also most ground water before discharging to the stream during the growing season (March-October). At the second well-drained site, ground water discharging to the stream from the side with a buffer contained about 2 mg/L of nitrate-nitrogen after passing through the bed of the stream compared to 6 mg/L in ground water discharging from the side with no buffer. In the poorly drained settings, nitrate in ground water decreased from about 6 mg/L in the recharge area to less than 0.02 mg/L downgradient from the riparian buffer. Ground water discharging from the side with no buffer contained 0.83 mg/L. Riparian buffers appear effective in reducing nitrate in ground water discharging to Coastal Plain streams.


Geophysics ◽  
1950 ◽  
Vol 15 (3) ◽  
pp. 409-425 ◽  
Author(s):  
D. C. Skeels

Results are given of surveys conducted in 1944–1946 by the Esso Standard Oil Company in northeastern North Carolina, and extending into the southeast corner of Virginia. Gravitational, magnetic, refraction and reflection surveys were made. The gravity and magnetic maps indicate a basement of complex composition, with a grain approximately north‐south. The refraction data show the regional eastward dip of a high velocity layer, which in the western part of the area is identified as crystalline basement, but which in the eastern part is believed to be a limestone in the Lower Cretaceous. The reflection survey of Pamlico Sound shows regional east dip with a number of noses plunging east and northeast, and some possible faults but no closed structures.


2001 ◽  
Vol 33 (1) ◽  
pp. 91-101 ◽  
Author(s):  
John C. Whitehead ◽  
Thomas J. Hoban ◽  
William B. Clifford

AbstractThe North Carolina Agriculture Survey was designed to estimate the willingness to pay for agricultural research and extension programs. We find that North Carolina households are willing to pay between $218 and $401 million for food production programs and between $251 and $698 million for water quality programs annually. We find evidence of divergent validity and differences in the willingness to pay estimates from the single-bound and multiple-bound data.


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