Urban snowmelt and runoff in northern Sweden
作者:
LARS BENGTSSON,
GÖRAN WESTERSTRÖM,
期刊:
Hydrological Sciences Journal
(Taylor Available online 1992)
卷期:
Volume 37,
issue 3
页码: 263-275
ISSN:0262-6667
年代: 1992
DOI:10.1080/02626669209492586
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
Snowmelt and runoff in urban areas in Luleå, north Sweden, are discussed and compared with rural conditions. The uneven snow distribution in cities is quantified. Energy fluxes at the snow surface in different environments are estimated. It is shown that, mainly because of increased absorbed radiative energy in the snow, the daily melt is about 10 mm higher in the city than in rural environments. In the course of prolonged snowmelt, the infiltration capacity of most soils in urban areas becomes so reduced that melt-induced peak flows from grassed and gravelled surfaces are similar to those from asphalted surfaces. When rain falls on snow, overland flow may take place from the entire area of a basin.
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