scholarly journals Flow Characterization in the Santee Cave System in the Chapel Branch Creek Watershed, Upper Coastal Plain of South Carolina, USA

2013 ◽  
Vol 75 (2) ◽  
pp. 136-145 ◽  
Author(s):  
Amy Edwards ◽  
Devendra Amatya ◽  
Thomas Williams ◽  
Daniel Hitchcock ◽  
April James
Keyword(s):  
South Carolina ◽  
Coastal Plain ◽  
Cave System ◽  
Flow Characterization ◽  
Creek Watershed

scholarly journals Effects of cypress knee roughness on flow resistance and discharge estimates of the Turkey Creek watershed

2017 ◽  
Vol 49 (3) ◽  
pp. 179-199 ◽  
Author(s):  
Dorota Miroslaw-Swiatek ◽  
Devendra M. Amatya
Keyword(s):  
South Carolina ◽  
Coastal Plain ◽  
Flow Resistance ◽  
Atlantic Coastal Plain ◽  
Main Stream ◽  
Order Stream ◽  
North West ◽  
Creek Watershed ◽  
Atlantic Coastal ◽  
Cypress Trees

Abstract Effects of cypress knee roughness on flow resistance and discharge estimates of the Turkey Creek watershed. In this study effects of cypress knees as vegetation resistance factor on Turkey Creek watershed discharge calculation were analyzed. The Turkey Creek watershed is a 3rd order stream system draining an approximate area of 5,240 ha. It is located at 33°08' N latitude and 79°47' W longitude, approximately 60 km north-west of City of Charleston in South Carolina (USA). Turkey Creek (WS 78) is typical of other watersheds in the south Atlantic coastal plain. In the case of Turkey Creek watershed, one of the main channels and riparian floodplain vegetation contains cypress trees. Cypress trees live in moist or swampy regions along the Atlantic coastal plain. The cypress trees are characterized by the unique root system called knees that appear just above the water line, up to 1.2 m above water surface. This study is conducted to examine the effects of roughness of cypress knee as related to its shape (diameter and height) on discharge estimates of the Turkey Creek watershed. Hydraulic characteristics of the cypress knees were determined by field inventory in selected cross-section along the main stream channel. The Pasche method was used to calculate the total Darcy–Weisbach friction factor in discharge capacity calculation of the study watershed. The results of this study show that the effect of vegetation shape in the Pasche approach is significant. If the variability of vegetation stem diameter is taken into consideration in the calculations, an increase by 10–32% in the values of friction coefficients occurs.

scholarly journals Wintering Golden Eagles on the coastal plain of South Carolina

2015 ◽  
Vol 86 (4) ◽  
pp. 337-344 ◽  
Author(s):  
Mark Vukovich ◽  
Kelsey L. Turner ◽  
Tracy E. Grazia ◽  
Thomas Mims ◽  
James C. Beasley ◽  
...  
Keyword(s):  
South Carolina ◽  
Coastal Plain ◽  
Golden Eagles

Wave conversions from earthquakes and a new velocity model for the South Carolina coastal plain

1987 ◽  
Vol 77 (6) ◽  
pp. 2143-2151
Author(s):  
Susan Rhea
Keyword(s):  
Surface Layer ◽  
South Carolina ◽  
Coastal Plain ◽  
Velocity Structure ◽  
Velocity Model ◽  
Seismogenic Fault ◽  
Impedance Boundary ◽  
High Impedance ◽  
Hypocentral Parameters ◽  
Converted Phases

Abstract Phase conversions from P to SV and from SV to P occur at a high impedance boundary near the surface in Charleston, South Carolina. Four arrivals (P, converted P, converted S, and S) are observed on three-component records of earthquakes in this area. Using arrival-time differences between paired arrivals of direct and converted phases, a shallow surface layer Vp/Vs ratio of 2.9 was determined. Applying the Wadati method to travel times derived at the base of the surface layer yields a Vp/Vs ratio in deeper layers of 1.73. Relocating earthquakes using this more appropriate velocity structure for direct and converted shear waves alters hypocentral parameters such that epicenters diverge and depths converge. It is inferred that these relocated earthquakes are not exclusively associated with a single seismogenic fault.

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