IMHE OpenIR  > Journal of Mountain Science  > Journal of Mountain Science-2017  > Vol14 No.11
Response of snow hydrological processes to a changing climate during 1961 to 2016 in the headwater of Irtysh River Basin, Chinese Altai Mountains
ZHANG Wei; KANG Shi-chang; SHEN Yong-ping; HE Jian-qiao; CHEN An-an
Corresponding AuthorZHANG Wei
2017-11
Source PublicationJournal of Mountain Science
ISSN1672-6316
Volume14Issue:11Pages:2295-2310
Subtype期刊论文
AbstractWith changing climatic conditions and snow cover regime, regional hydrological cycle for a snowy basin will change and further available surface water resources will be redistributed. Assessing snow meltwater effect on runoff is the key to water safety, under climate warming and fast social-economic developing status. In this study, stable isotopic technology was utilized to analyze the snow meltwater effect on regional hydrological processes, and to declare the response of snow hydrology to climate change and snow cover regime, together with long-term meteorological and hydrological observations, in the headwater of Irtysh River, Chinese Altai Mountains during 1961-2015. The average δ18O values of rainfall, snowfall, meltwater, groundwater and river water for 2014–2015 hydrological year were -10.9‰, -22.3‰, -21.7‰, -15.7‰ and -16.0‰, respectively. The results from stable isotopes, snow melting observation and remote sensing indicated that the meltwater effect on hydrological processes in Kayiertesi River Basin mainly occurred during snowmelt supplying period from April to June. The contribution of meltwater to runoff reached 58.1% during this period, but rainfall, meltwater and groundwater supplied 49.1%, 36.9% and 14.0% of water resource to annual runoff, respectively. With rising air temperature and increasing snowfall in cold season, the snow water equivalent (SWE) had an increasing trend but the snow cover duration declined by about one month including 13-day delay of the first day and 17-day advancement of the end day during 1961–2016. Increase in SWE provided more available water resource. However, variations in snow cover timing had resulted in redistribution of surface water resource, represented by an increase of discharge percentage in April and May, and a decline in June and July. This trend of snow hydrology will render a deficit of water resource in June and July when the water resource demand is high for agricultural irrigation and industrial manufacture.
KeywordIrtysh River Basin Chinese Altai Mountains Snow Hydrology Isotope Climate Change
DOIhttps://doi.org/10.1007/s11629-017-4556-z
Indexed BySCI
Language英语
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Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/19196
CollectionJournal of Mountain Science_Journal of Mountain Science-2017_Vol14 No.11
Recommended Citation
GB/T 7714
ZHANG Wei,KANG Shi-chang,SHEN Yong-ping,et al. Response of snow hydrological processes to a changing climate during 1961 to 2016 in the headwater of Irtysh River Basin, Chinese Altai Mountains[J]. Journal of Mountain Science,2017,14(11):2295-2310.
APA ZHANG Wei,KANG Shi-chang,SHEN Yong-ping,HE Jian-qiao,&CHEN An-an.(2017).Response of snow hydrological processes to a changing climate during 1961 to 2016 in the headwater of Irtysh River Basin, Chinese Altai Mountains.Journal of Mountain Science,14(11),2295-2310.
MLA ZHANG Wei,et al."Response of snow hydrological processes to a changing climate during 1961 to 2016 in the headwater of Irtysh River Basin, Chinese Altai Mountains".Journal of Mountain Science 14.11(2017):2295-2310.
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