IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
Log On
About IAHRDirectoryCommitteesMy IAHRNews & JournalseLibraryeShopEventsJoin IAHRWorld CongressDonate
spacer.gif
spacer.gif eLibrary
spacer.gif eLibrary
You are here : eLibrary : IAHR World Congress Proceedings : 34th Congress - Brisbane (2011) : THEME 3: Water and Carbon: Climate Change Impact : Analysis of daily precipitation pattern in the yellow river basin
Analysis of daily precipitation pattern in the yellow river basin
Author : Ye Rui1, Chen Genfa1, Qin Dayong1
There are two widely-used methods in distributed hydrological models to compute daily rainfall pattern, random distribution pattern method and triangular distribution pattern method, neither of which, however, performs well enough. In order to improve the accuracy of rainfall input, this study investigated the real distribution of rainfall by using the long-term rainfall records from 1951 to 1997 collected by 767 Gauges in the Yellow River basin. The daily rainfall records were grouped into six categories according to the daily rainfall amount: <2mm, 2mm~10mm, 10mm~20mm, 20mm~50mm, 50mm~100mm, and >100mm. As to each category, statistical analysis showed that rainfall pattern was close to Pearson-Ⅲ type distribution. This study will significantly improve the accuracy of rainfall input in distributed hydrological models.
File Size : 413,413 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 34th Congress - Brisbane (2011)
Article : THEME 3: Water and Carbon: Climate Change Impact
Date Published : 01/07/2011
Download Now