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 eLibrary
spacer.gif eLibrary
You are here : eLibrary : IAHR World Congress Proceedings : 35th IAHR Congress - Chengdu (2013) : THEME 7 - WATER RESOURCES AND HYDROINFORMATICS : The Application of Information Entropy in the Optimization of Hydrological Station Network
The Application of Information Entropy in the Optimization of Hydrological Station Network
Author : Jing Xu, Qiong Huang and Xiaohong Ruan
Rainfall is one of the most important components in the hydrological cycle. At the same time, it is also the factor with the greatest uncertainty in runoff simulations. In this study, we evaluated the rainfall network over the Shihe river catchment, which is the upstream tributary of the Huaihe River. Based on the information entropy theory, we calculated and analyzed the information entropy of rainfall r ecords at four rainfall stations and determined the order of importance of each raingage. By comparing the independent and common information between the raigages, the best combination of raingages over the study basin was obtained. The results show that the conditions during different seasons and different sampling intervals required different rainfall network layouts and that these layouts should be adjusted depending on the actual situation. In general, the rainfall network should be designed with larger density in the summer than in the winter, and denser network is also needed for shorter sampling interval to capture the rainfall information.
File Size : 398,872 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 35th IAHR Congress - Chengdu (2013)
Date Published : 19/07/2016
Download Now