| Reference Type | Journal (article/letter/editorial) |
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| Title | Contemporary Squamish River sediment flux to Howe Sound, British Columbia |
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| Journal | Canadian Journal of Earth Sciences |
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| Authors | Hickin, Edward J. | Author |
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| Year | 1989 (October 1) | Volume | 26 |
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| Issue | 10 |
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| Publisher | Canadian Science Publishing |
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| DOI | doi:10.1139/e89-165Search in ResearchGate |
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| Generate Citation Formats |
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| Mindat Ref. ID | 480198 | Long-form Identifier | mindat:1:5:480198:0 |
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| GUID | 0 |
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| Full Reference | Hickin, Edward J. (1989) Contemporary Squamish River sediment flux to Howe Sound, British Columbia. Canadian Journal of Earth Sciences, 26 (10) 1953-1963 doi:10.1139/e89-165 |
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| Plain Text | Hickin, Edward J. (1989) Contemporary Squamish River sediment flux to Howe Sound, British Columbia. Canadian Journal of Earth Sciences, 26 (10) 1953-1963 doi:10.1139/e89-165 |
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| In | (1989, October) Canadian Journal of Earth Sciences Vol. 26 (10) Canadian Science Publishing |
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| Abstract/Notes | Squamish River drains 3600βkm2 in the southern Coast Mountains of British Columbia to Howe Sound at Squamish, some 50βkm north of Vancouver. This study uses differencing of digitized bathymetric surfaces based on the Canadian Hydrographic Services surveys of 1930, 1973, and 1984 at the head of Howe Sound to yield a long-term sedimentation rate for Squamish River delta. The sediment flux from Squamish River to Howe Sound is determined to be 1.29βΓβ106βm3βaβ1 or 1.81βΓβ109βkgβaβ1, rates consistent with loads calculated from flow and sediment-concentration regimes measured in the estuary in 1973 β 1975 and 1987 β 1988. The latter data indicate that the modal discharge-effectiveness class is 600 β 700βm3βsβ1, moving 13% of the annual suspended-sediment load. Discharges up to 1400βm3βsβ1 constitute 99.8% of all flows and are responsible for transporting 81.5% of the annual load. A very significant 18.5% of the load is moved by large-magnitude floods (>β1400βm3βsβ1), which occur less than 0.2% of the time.Squamish Delta is prograding downfjord at an average rate of 3.86βmβaβ1 although local extensions of the delta front in a given year may approach 20βm. Some of the geomorphic implications of extrapolating these contemporary rates of fjord infilling over the Holocene are discussed briefly. |
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