Hydraulic geometry of Green and Birkenhead rivers: Southwestern Coast Mountains, British Columbia
Green and Birkenhead Rivers are located in the southwestern Coast Mountains of British Columbia, and the drainage in both basins is still strongly controlled by glacial features left after the retreat of the Vashon ice sheet. River slopes are imposed on the upland streams while the slope of the main...
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University of British Columbia
1972
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ftunivbritcolcir:oai:circle.library.ubc.ca:2429/34127 2023-05-15T16:41:08+02:00 Hydraulic geometry of Green and Birkenhead rivers: Southwestern Coast Mountains, British Columbia Ponton, John Robert 1972 http://hdl.handle.net/2429/34127 eng eng University of British Columbia For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use. Green River British Columbia Birkenhead River Text Thesis/Dissertation 1972 ftunivbritcolcir 2019-10-15T18:03:44Z Green and Birkenhead Rivers are located in the southwestern Coast Mountains of British Columbia, and the drainage in both basins is still strongly controlled by glacial features left after the retreat of the Vashon ice sheet. River slopes are imposed on the upland streams while the slope of the main valley streams is at least partly imposed by the glacial topography. Discharge in the streams is dominated by snowmelt during the summer though peak daily discharges frequently occur in autumn during autumn storms. At-a-station hydraulic geometry curves were determined by least square regression analysis for five sections from Water Survey of Canada gauging records. Velocity shows a more rapid than usual rate of adjustment, and resistance decreases more rapidly than the average as discharge increases. Residual values appear to be distributed about the regression lines in a systematic manner suggesting that the channel form fluctuates systematically over time. Similar results were found for ten other sections in the southwestern Coast Mountains. Downstream hydraulic geometries were determined for Green River and Birkenhead River. Bankfull discharge was assumed to have a constant recurrence interval of 2.33 years for both basins. Channel width shows a greater than usual increase in the downstream direction while velocity appears to remain constant or decrease. Arts, Faculty of Geography, Department of Graduate Thesis Ice Sheet University of British Columbia: cIRcle - UBC's Information Repository British Columbia ENVELOPE(-125.003,-125.003,54.000,54.000) Canada |
institution |
Open Polar |
collection |
University of British Columbia: cIRcle - UBC's Information Repository |
op_collection_id |
ftunivbritcolcir |
language |
English |
topic |
Green River British Columbia Birkenhead River |
spellingShingle |
Green River British Columbia Birkenhead River Ponton, John Robert Hydraulic geometry of Green and Birkenhead rivers: Southwestern Coast Mountains, British Columbia |
topic_facet |
Green River British Columbia Birkenhead River |
description |
Green and Birkenhead Rivers are located in the southwestern Coast Mountains of British Columbia, and the drainage in both basins is still strongly controlled by glacial features left after the retreat of the Vashon ice sheet. River slopes are imposed on the upland streams while the slope of the main valley streams is at least partly imposed by the glacial topography. Discharge in the streams is dominated by snowmelt during the summer though peak daily discharges frequently occur in autumn during autumn storms. At-a-station hydraulic geometry curves were determined by least square regression analysis for five sections from Water Survey of Canada gauging records. Velocity shows a more rapid than usual rate of adjustment, and resistance decreases more rapidly than the average as discharge increases. Residual values appear to be distributed about the regression lines in a systematic manner suggesting that the channel form fluctuates systematically over time. Similar results were found for ten other sections in the southwestern Coast Mountains. Downstream hydraulic geometries were determined for Green River and Birkenhead River. Bankfull discharge was assumed to have a constant recurrence interval of 2.33 years for both basins. Channel width shows a greater than usual increase in the downstream direction while velocity appears to remain constant or decrease. Arts, Faculty of Geography, Department of Graduate |
format |
Thesis |
author |
Ponton, John Robert |
author_facet |
Ponton, John Robert |
author_sort |
Ponton, John Robert |
title |
Hydraulic geometry of Green and Birkenhead rivers: Southwestern Coast Mountains, British Columbia |
title_short |
Hydraulic geometry of Green and Birkenhead rivers: Southwestern Coast Mountains, British Columbia |
title_full |
Hydraulic geometry of Green and Birkenhead rivers: Southwestern Coast Mountains, British Columbia |
title_fullStr |
Hydraulic geometry of Green and Birkenhead rivers: Southwestern Coast Mountains, British Columbia |
title_full_unstemmed |
Hydraulic geometry of Green and Birkenhead rivers: Southwestern Coast Mountains, British Columbia |
title_sort |
hydraulic geometry of green and birkenhead rivers: southwestern coast mountains, british columbia |
publisher |
University of British Columbia |
publishDate |
1972 |
url |
http://hdl.handle.net/2429/34127 |
long_lat |
ENVELOPE(-125.003,-125.003,54.000,54.000) |
geographic |
British Columbia Canada |
geographic_facet |
British Columbia Canada |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_rights |
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use. |
_version_ |
1766031574810230784 |