Item: Characteristics of Spring Runoff in the Mogot Experimental Watershed, in the Southern Mountainous Taiga of Eastern Siberia
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Title: Characteristics of Spring Runoff in the Mogot Experimental Watershed, in the Southern Mountainous Taiga of Eastern Siberia
Proceedings: 2002 International Snow Science Workshop, Penticton, British Columbia
Authors:
- Kazuyoshi Suzuki [ Frontier Observational Research System for Global Change, Yokohama, Japan ]
- Jumpei Kubota [ Research Institute for Human and Nature, Kyoto, Japan ] [ Frontier Observational Research System for Global Change, Yokohama, Japan ]
- Tetsuo Ohata [ Institute for Low Temperature Sciences, Sapporo, Japan ] [ Frontier Observational Research System for Global Change, Yokohama, Japan ]
- Neli Vasilenk0 [ State Hydrological Institute, St Petersburg, Russian Federation ]
- Sergei Zhuravin [ State Hydrological Institute, St Petersburg, Russian Federation ]
- Varely Vuglinsk [ State Hydrological Institute, St Petersburg, Russian Federation ]
Date: 2002
Abstract: During the spring thaw in eastern Siberia, melt water sometimes causes avalanches and spring floods in mountain taiga permafrost regions. Thus, it is important to understand the spring run off generation in the region. We analyzed data for the Mogot experimental watershed, which is located in this region and was the site of intensive observations by the State Hydrological Institute for 10 years from 1976 to 1985. The spring runoff ratio was smaller than the annual ratio, and the variation in the spring runoff ratio was larger than that in the annual ratio. This demonstrated that spring runoff is generated by a different mechanism. The variation in the spring runoff ratio depended on the maximum snow water equivalent and fall soil moisture. Furthermore, the effective parameters determining infiltration into frozen soil were soil temperature and the duration of the thaw. To evaluate snow ablation, sublimation is also important. The estimated sublimation from snowcover was significant and amounted to nearly 11.6 mm/month in April.
Object ID: issw-2002-407-411.pdf
Language of Article: English
Presenter(s): Unknown
Keywords: eastern siberia, permafrost, sublimation, runoff ratio, soil moisture, snowmelt
Page Number(s): 407-411
Subjects: mogot experimental watershed snowmelt sublimation
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