Influence of underlying surface changes on flood characteristics of Xiaoqing River in Shandong Province, China using HEC-HMS model

Autor:	C J Shan, D J Huang, C C Tian
Rok vydání:	2019
Předmět:	Hydrology geography geography.geographical_feature_category Flood myth Urbanization Flooding (psychology) Drainage basin Environmental science HEC-HMS Land area China Surface runoff
Zdroj:	IOP Conference Series: Earth and Environmental Science. 344:012117
ISSN:	1755-1315 1755-1307
DOI:	10.1088/1755-1315/344/1/012117
Popis:	The hydrological characteristics of the Xiaoqing River Basin (above Chahe Hydrological Station) in Shandong Province, China are changing due to increased urbanization. It has been found that since 1985 the constructed land area in the river basin has increased by 119% in 2015. Any changes in the river basin may increase the flood frequencies which may have severe consequences downstream of the river. We simulated the influence of underlying surface changes on flooding in the Xiaoqing river basin. The hydrological model HEC-HMS, a rainfall- runoff simulation model, was used to simulate the flood volume and the peak discharge values under the two underlying surface conditions in 1985 and 2015. The results indicated that influence of increased urbanization in 2015 increased in the flood volume and the peak discharge by approximately 17.8% and 15.4% on average respectively. Also the runoff R increases by 0.0058 mm for each unit increase of CN 2S value under the unit rainfall.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7915ce0cba56df3dfaa3631af2cd9392 https://doi.org/10.1088/1755-1315/344/1/012117 Zobrazit plný text záznamu