Next Article in Journal
Potential of Rainwater Utilization in Households Based on the Distributions of Catchment Area and End-Use Water Demand
Next Article in Special Issue
Influence of Three Gorges Dam on Downstream Low Flow
Previous Article in Journal
Capacity Building for Water Management in Peri-Urban Communities, Bangladesh: A Simulation-Gaming Approach
Previous Article in Special Issue
Variation Analysis of Streamflows from 1956 to 2016 Along the Yellow River, China
Open AccessArticle

Hydrological Simulation and Runoff Component Analysis over a Cold Mountainous River Basin in Southwest China

1
Institute of Hydrology and Water Resources, Civil Engineering, College of Civil Engineering and Architecture, Zhejiang University, Zhejingang Campus, Yuhangtang Road #866, Hangzhou 310058, China
2
Hydrochina Huadong, Hangzhou 311122, China
3
School of Water Resources and Hydropower, Sichuan University, Chengdu 610065, China
*
Author to whom correspondence should be addressed.
Water 2018, 10(11), 1705; https://doi.org/10.3390/w10111705
Received: 30 October 2018 / Revised: 15 November 2018 / Accepted: 16 November 2018 / Published: 21 November 2018
(This article belongs to the Special Issue Hydrological Processes under Environmental Change)
Assessment of water resources from mountainous catchments is crucial for the development of upstream rural areas and downstream urban communities. However, lack of data in these mountainous catchments prevents full understanding of the response of hydrology or water resources to climate change. Meanwhile, hydrological modeling is challenging due to parameter uncertainty. In this work, one tributary of the Yarlung Zangbo River Basin (the upper stream of the Brahmaputra River) was used as a case study for hydrological modeling. Tropical Rainfall Measuring Mission (TRMM 3B42V7) data were utilized as a substitute for gauge-based rainfall data, and the capability of simulating precipitation, snow, and groundwater contributions to total runoff by the Soil and Water Assessment Tool (SWAT) was investigated. The uncertainty in runoff proportions from precipitation, snowmelt, and groundwater was quantified by a batch-processing module. Hydrological signatures were finally used to help identify if the hydrological model simulated total runoff and corresponding proportions properly. The results showed that: (1) TRMM data were very useful for hydrological simulation in high and cold mountainous catchments; (2) precipitation was the primary contributor nearly all year round, reaching 56.5% of the total runoff on average; (3) groundwater occupied the biggest proportion during dry seasons, whereas snowmelt made a substantial contribution only in late spring and summer; and (4) hydrological signatures were useful for helping to evaluate the performance of the hydrological model. View Full-Text
Keywords: SWAT; TRMM 3B42V7; Niyang River Basin; runoff component analysis SWAT; TRMM 3B42V7; Niyang River Basin; runoff component analysis
Show Figures

Figure 1

MDPI and ACS Style

Xuan, W.; Fu, Q.; Qin, G.; Zhu, C.; Pan, S.; Xu, Y.-P. Hydrological Simulation and Runoff Component Analysis over a Cold Mountainous River Basin in Southwest China. Water 2018, 10, 1705.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map

1
Back to TopTop