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A simple algorithm for generating streamflow networks for grid-based, macroscale hydrological models

✍ Scribed by Greg O'Donnell; Bart Nijssen; Dennis P. Lettenmaier

Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
602 KB
Volume
13
Category
Article
ISSN
0885-6087

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✦ Synopsis

A simple algorithm for generating streamΒ―ow networks for macroscale hydrological models (MHMs) from digital elevation models (DEMs) is presented. Typically these hydrological models are grid based, with the simulated runo produced within each cell routed through a stream network which connects the centers of cells in the direction of the major streams. Construction of such stream networks is a time consuming task, which has generally been done by hand with the aid of maps. Results indicate that the algorithm works satisfactorily in areas of both high and low relief, and for a wide range of model cell resolutions, although some manual adjustments may be necessary.

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## Wang and Ding (2007) present a daily streamflow simulation model based on the Gaussian kernel function. The model is found powerful in preserving statistical characteristics of the daily streamflow sequences. The purpose of this comment is to improve the presentation of the proposed model. To m

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His third suggestion is that a sequence of generated daily streamflow to show the time-irreversible structure of the daily streamflow hydrograph should be listed. This is a good suggestion. Owing to a constraint on the number of pages, generated daily streamflow hydrographs were not sketched. Howeve