Determine flow-partition proportion
نویسندگان
چکیده
This discussion paper is/has been under review for the journal Hydrology and Earth System Sciences (HESS). Please refer to the corresponding final paper in HESS if available. Abstract This paper revisits the tangent expression for the slope gradient (tan β) used in the general flow-partition function in multiple-flow-direction (MFD) algorithms. The deduction of the flow-partition function performed here based on hydrological theory shows that sin β, instead of tan β as used currently, provides a clear theoretical basis for de-5 termining the flow-partition proportions in MFD algorithms.
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