Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
An analysis of lag time (defined as time between centroids of effective precipitation and runoff) from nine small urban watersheds shows that lag time variability is small and that lag time is not correlated with storm intensity. Effective precipitation can be routed through storage by the Muskingum method to accurately reproduce an observed runoff hydrograph. Effective precipitation is separated from total precipitation by the phi-index. Precipitation loss on a watershed is closely represented by a linear relationship between total storm precipitation and total storm runoff. On impervious watersheds, precipitation loss seems to be related to watershed slope. Instrumentation requirements for adequate data collection on urban watersheds include synchronization of precipitation and runoff records, use of at least two rain-gages, and accurate runoff measurement at high and low flows. Watershed selection is important for successful data collection.
An analysis of lag time (defined as time between centroids of effective precipitation and runoff) from nine small urban watersheds shows that lag time variability is small and that lag time is not correlated with storm intensity. Effective precipitation can be routed through storage by the Muskingum method to accurately reproduce an observed runoff hydrograph. Effective precipitation is separated from total precipitation by the phi-index. Precipitation loss on a watershed is closely represented by a linear relationship between total storm precipitation and total storm runoff. On impervious watersheds, precipitation loss seems to be related to watershed slope. Instrumentation requirements for adequate data collection on urban watersheds include synchronization of precipitation and runoff records, use of at least two rain-gages, and accurate runoff measurement at high and low flows. Watershed selection is important for successful data collection.
Time in Urban Hydrology
Willeke, Gene E. (Autor:in)
Journal of the Hydraulics Division ; 92 ; 13-29
01.01.2021
171966-01-01 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
| Engineering Index Backfile | 1966
| TIBKAT | 1984
| UB Braunschweig | 1984
Discussion of “Time in Urban Hydrology”
| ASCE | 2021
Closure to “Time in Urban Hydrology”
| ASCE | 2021