Bankfull Curves for the Temperate Rainforests in the Southern Appalachian Mountains of Western North Carolina

Bankfull hydraulic geometry relationships, also called regional curves, relate bankfull stream channel dimensions and discharge to watershed drainage area. This paper describes results of bankfull curve relationships developed for the temperate rainforests of the Southern Appalachian Mountai...

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Main Authors: MICKEY B. HENSON, OLUWATOYIN D. KOLAWOLE, OMOTAYO AYENI
Format: Article
Language:English
Published: University of Bucharest 2014-08-01
Series:Cinq Continents
Subjects:
Online Access:http://cinqcontinents.geo.unibuc.ro/4/4_9_Henson.pdf
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author MICKEY B. HENSON
OLUWATOYIN D. KOLAWOLE
OMOTAYO AYENI
author_facet MICKEY B. HENSON
OLUWATOYIN D. KOLAWOLE
OMOTAYO AYENI
author_sort MICKEY B. HENSON
collection DOAJ
description Bankfull hydraulic geometry relationships, also called regional curves, relate bankfull stream channel dimensions and discharge to watershed drainage area. This paper describes results of bankfull curve relationships developed for the temperate rainforests of the Southern Appalachian Mountains primarily on Western North Carolina Mountain streams in the Southeastern United States. Gauge stations for small and larger catchments were selected with a range of 10 to 50 years of continuous or peak discharge measurements, no major impoundments, no significant change in land use over the past 10 years, and impervious cover ranges of <20%. Cross-sectional and longitudinal surveys were measured at each study reach to determine channel dimension, pattern, and profile information. Log-Pearson Type III distributions were used to analyze annual peak discharge data for nine small watersheds sites gauged by the United States Department of Agriculture (USDA), Forest Service, Southern Research Station, Coweeta Hydrologic Laboratory and for eleven larger watersheds gauged by the United States Geological Survey (USGS). Power function relationships were developed using regression analyses for bankfull discharge, channel cross-sectional area, mean depth, and width as functions of watershed drainage area.
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spelling doaj.art-08629feb8d3846d680199cb596a4cb112022-12-22T03:08:03ZengUniversity of BucharestCinq Continents2247-22902247-22902014-08-0194515Bankfull Curves for the Temperate Rainforests in the Southern Appalachian Mountains of Western North CarolinaMICKEY B. HENSON0OLUWATOYIN D. KOLAWOLE1OMOTAYO AYENI2Franklin, North Carolina, United StatesOkavango Research Institute [ORI], University of Botswana, Maun, BotswanaCroydon, United Kingdom and Abuja, NigeriaBankfull hydraulic geometry relationships, also called regional curves, relate bankfull stream channel dimensions and discharge to watershed drainage area. This paper describes results of bankfull curve relationships developed for the temperate rainforests of the Southern Appalachian Mountains primarily on Western North Carolina Mountain streams in the Southeastern United States. Gauge stations for small and larger catchments were selected with a range of 10 to 50 years of continuous or peak discharge measurements, no major impoundments, no significant change in land use over the past 10 years, and impervious cover ranges of <20%. Cross-sectional and longitudinal surveys were measured at each study reach to determine channel dimension, pattern, and profile information. Log-Pearson Type III distributions were used to analyze annual peak discharge data for nine small watersheds sites gauged by the United States Department of Agriculture (USDA), Forest Service, Southern Research Station, Coweeta Hydrologic Laboratory and for eleven larger watersheds gauged by the United States Geological Survey (USGS). Power function relationships were developed using regression analyses for bankfull discharge, channel cross-sectional area, mean depth, and width as functions of watershed drainage area.http://cinqcontinents.geo.unibuc.ro/4/4_9_Henson.pdfAppalachian MountainsBankfullChannel MorphologyGeomorphologySoutheastern United StatesStorm Recurrence IntervalsTemperate Rainforests
spellingShingle MICKEY B. HENSON
OLUWATOYIN D. KOLAWOLE
OMOTAYO AYENI
Bankfull Curves for the Temperate Rainforests in the Southern Appalachian Mountains of Western North Carolina
Cinq Continents
Appalachian Mountains
Bankfull
Channel Morphology
Geomorphology
Southeastern United States
Storm Recurrence Intervals
Temperate Rainforests
title Bankfull Curves for the Temperate Rainforests in the Southern Appalachian Mountains of Western North Carolina
title_full Bankfull Curves for the Temperate Rainforests in the Southern Appalachian Mountains of Western North Carolina
title_fullStr Bankfull Curves for the Temperate Rainforests in the Southern Appalachian Mountains of Western North Carolina
title_full_unstemmed Bankfull Curves for the Temperate Rainforests in the Southern Appalachian Mountains of Western North Carolina
title_short Bankfull Curves for the Temperate Rainforests in the Southern Appalachian Mountains of Western North Carolina
title_sort bankfull curves for the temperate rainforests in the southern appalachian mountains of western north carolina
topic Appalachian Mountains
Bankfull
Channel Morphology
Geomorphology
Southeastern United States
Storm Recurrence Intervals
Temperate Rainforests
url http://cinqcontinents.geo.unibuc.ro/4/4_9_Henson.pdf
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