NDLI: An observational study of snow aging and the seasonal variation of snow albedo by using data from Col de Porte, France

Content Provider	Springer Nature Link
Author	Chen, Ajiao Li, Weiping Li, Weijing Liu, Xin
Copyright Year	2014
Abstract	An 18-year long (1993–2011) comprehensive dataset of snow and meteorological variables from Col de Porte, France is used to analyze the variation of shortwave broadband albedo with elapsed time after snowfalls (snow aging) during each snow season. The effects of air temperature, snow surface temperature and snow depth on snow albedo are investigated. An index based on the accumulation of air temperature over several consecutive days with daily mean higher than 2.5 °C is proposed to divide each snow-covered period into a dry and the following wet snow season when this index reaches 18 °C. The results indicate that snow surface albedo decreases exponentially with time in both dry and wet snow seasons. Snow albedo reduction with snow aging is small at low surface temperature and the reduction rate increases with the rise of surface temperature. However, the reduction rate is widely scattered within the observed range of temperature, implying a loose relationship between snow albedo and snow surface temperature. Snow albedo in wet snow season is generally smaller and decreases faster than in dry snow season. For Col de Porte site, snow depths to effectively mask the underlying surface are 21 and 33 cm in dry and wet snow season respectively.
Starting Page	4881
Ending Page	4889
Page Count	9
File Format	PDF
ISSN	10016538
Journal	Chinese Science Bulletin
Volume Number	59
Issue Number	34
e-ISSN	18619541
Language	English
Publisher	Science China Press
Publisher Date	2014-05-15
Publisher Place	Heidelberg
Access Restriction	Subscribed
Subject Keyword	Snow aging Snow albedo Dry snow season Wet snow season Snow surface temperature Snow depth Science Life Sciences Physics Chemistry/Food Science Earth Sciences Engineering
Content Type	Text
Resource Type	Article
Subject	Multidisciplinary

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