Measuring total longshore sediment transport with a LISST instrumented mini-sled.
| Title: | Measuring total longshore sediment transport with a LISST instrumented mini-sled. |
| Author: | Huchzermeyer, Erick Karl, 1974- |
| Abstract: | A surf zone sediment transport study was conducted in Jamaica Beach , Texas , using new oceanographic equipment . A mini -sled was constructed and outfitted with an instrument package that consisted of two velocimeters , one current profiler , three OBS's (Optical Back Scatter ) , and a Sequoia Instruments LISST (Laser in situ Scatteroineter and Transinissoineter ) . This instrumented sled was used to measure sand concentration and flow velocity across the surf zone . Using these two parameters we were able to determine longshore sand transport . The study provided an accurate measurernent of sand transport on a muddy coast . Previous methods for measuring total longshore sediment transport did not quantify the effect that mud -sized particles would have on OBS's . To circumvent this issue we used the LISST to measure sand concentration in the water . The LISST can measure sand concentration despite the presence of mud . During this study it appeared that sand transport peaks 10 cm above the sea bottom . The measured total longshore transport rate closely matched results from one equation for determining total longshore transport (Kamphius , 199 1 ) . The CERC equation was also compared to the measured result . |
| URI: |
http : / /handle .tamu .edu /1969 .1 /3357
http : / /hdl .handle .net /1969 .1 /3357 |
| Date: | 2006-04-12 |
Citation
(December 2005).
Measuring total longshore sediment transport with a LISST instrumented mini-sled..
Master's thesis,
Texas A&M University. Available electronically from
http : / /handle .tamu .edu /1969 .1 /3357
.
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| etd-tamu-2005C-OCNG-Huchzer-2.pdf | 3.603Mb | application/pdf |
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