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Understanding Rate of Transport for Suspended Load with Averaging Scales

Discover the complexities of calculating the rate of transport for suspended loads while being cautious of averaging scales in both time and space. Learn how to interpret findings and avoid assumptions in sediment flux studies.

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Understanding Rate of Transport for Suspended Load with Averaging Scales

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  1. Rate of transport for suspended load: But… remember

  2. Again, we need to be careful of our averaging scales: In the horizontal direction, as both time and space scales get small u’c’ 0 (assuming no gradient in horizontal)

  3. Example: There have been many studies of the coastal current off northern California that find the mean current ( u ) to be directed to the north in the winter. Can we automatically assume that the net flux of sediment is to the north?

  4. No, we can’t say that uc is determined by u c

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