[1]除 多,达 平,向莉英,等.GeoSFM水文模型在西藏拉萨河流域的应用[J].山地学报,2015,(06):751-758.[doi:10.16089/j.cnki.1008-2786.000091]
　CHU Du,DA Ping,XIANG Liying,et al.Application of GeoSFM Model in the Lhasa River Basin, Tibet[J].Mountain Research,2015,(06):751-758.[doi:10.16089/j.cnki.1008-2786.000091]
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GeoSFM水文模型在西藏拉萨河流域的应用()
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《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2015年06期
页码:
751-758
栏目:
山地信息技术
出版日期:
2015-12-01

文章信息/Info

Title:
Application of GeoSFM Model in the Lhasa River Basin, Tibet
作者:
除 多1; 2; 达 平3; 向莉英3; 罗布坚参4; Shrestha Mandira5; Bajracharya Sagar5
1.中国气象局成都高原气象研究所拉萨分部, 西藏 拉萨 850000; 2.西藏高原大气环境科学研究所,西藏 拉萨 850000; 3.西藏自治区水文水资源勘测局,西藏 拉萨 850000; 4. 西藏自治区气象台,西藏 拉萨 850000 5. 国际山地综合发展中心(ICIMOD),加德满都,尼泊尔
Author(s):
CHU Du1; 2;  DA Ping3; XIANG Liying3; NORBU Ghancan4; Shrestha Mandira5; Bajracharya Sagar5
1. Lhasa Campus of Institute of Plateau Meteorology, CMA, Lhasa 850000,China; 2. Tibet Institute of Plateau Atmospheric and Environmental Sciences, Lhasa 850000,China; 3. Tibet Bureau of Hydrology and Water Resources, Lhasa 851100,China; 4. Tibet Weather Observatory, Tibet Meteorological Bureau, Lhasa 850000,China; 5. International Centre for Integrated Mountain Development(ICIMOD), Kathmandu, Nepal
关键词:
水文模型;  GeoSFM;  拉萨河;  西藏
Keywords:
Hydrological model;  GeoSFM;  Lhasa River;  Tibet
分类号:
P333,TP79
DOI:
10.16089/j.cnki.1008-2786.000091
文献标志码:
A
摘要:
基于物理过程的半分布式水文模型USGS GeoSFM(Geospatial Stream Flow Model)对拉萨河2005年1—12月日径流量进行了模拟,并与同期的观测资料进行了对比。结果表明,GeoSFM模型在拉萨河流域的模拟效果较好,Nash-Sutcliffe效率系数为0.72,模拟和观测值之间的线性相关系数达0.89。由于GeoSFM模型输入参数较少,很多可以从应用广泛的全球或大尺度数据中获取,尤其是卫星遥感降水估算产品直接可以作为模型的降水驱动参数,所以在没有或缺少水文气象观测资料的地区应用前景广阔。
Abstract:
In this study, the daily river flow of Lhasa River basin,Tibet,China is simulated using USGS GeoSFM model and the validation is made using corresponding daily gauge data from Lhasa hydrological station. The results show that the general performance of GeoSFM model in Lhasa River basin is good and reasonable. Quantitatively, the simulated discharge can explain 80% of the variability in the observed discharge. The Nash-Sutcliffe efficiency coefficient(NSCE)and correlation between the observed and simulated runoff is 0.72 and 0.89, respectively. Qualitatively, the general trend of the simulated and observed daily runoff is same, which presents that the both simulated and observed river flow in Lhasa River basin is low with very small inter-daily variations before Jun. After onset of raining season, the runoff of Lhasa River is increasing fast until the river discharge reaches to the highest level in later August. During this period, the variation of daily discharge is high due to daily rainfall fluctuation. Most of discharge peaks in the basin are captured by GeoSFM model, but the simulated value is less than the observed value. The highest peak of discharge in later August is also smaller than the observed value. From the end of August, along with monsoon offset and rapid decease in rainfall, the simulated and observed discharge is deceasing fast. Until early October the river discharge reaches to a relatively stable stage. However, the average simulated value is smaller than the observed value and during the raining season the inter-daily variations of simulated runoff are higher than the observed runoff. GeoSFM is a physically-based semi-distributed hydrologic model. It have few parameters and variable input data requirements to simulate the dynamics of runoff processes by using remotely sensed data such as satellite-derived rainfall products and widely available continental or global data sets. Therefore, GeoSFM is very useful in sparsely hydro-meteorological station distributed regions.

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备注/Memo

备注/Memo:
收稿日期(Received date):2014-09-30; 修回日期(Accepted):2015-06-17。 基金项目(Foundation item):公益性行业(气象)科研专项(GYHY201206040; GYHY201306054)和国际山地中心(ICIMOD)共同资助。[This work is supported by the China Special Fund for Meteorological Research in the Public Interest(GYHY201206040; GYHY201306054)and Funding from ICIMOD.] 作者简介(Biography):除多(1969-), 男, 西藏白朗人, 理学博士, 正研级高级工程师, 主要从事高原环境遥感应用。[Chu Duo(1969-), male, born in Bailang County, Tibet, PhD,research professor, mainly engaged in remote sensing application in Tibetan Plateau.] E-mail:chu_d22 @hotmail.com
更新日期/Last Update: 1900-01-01