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- Title
Spatial and Temporal Variability of Snow Bulk Density and Seasonal Snow Densification Behavior in Finland.
- Authors
Rasmus, Sirpa
- Abstract
The spatial and temporal variability of snow bulk density and seasonal snow densification behavior in Finland was studied using comprehensive set of snow survey data. Mapping of the monthly snow bulk densities showed small differences, mainly indicating slightly denser snow covers in the open areas compared to the dense forest conditions. Open areas / forest openings had statistically different snow densities compared to forested conditions most often during the melt period. On average, Finnish snow has a bulk density of approximately 200 kgm-3 during the early winter, and bulk density increases to approximately 230 kgm-3 in March and to more than 280 kgm-3 in April. The average densification behavior of the Finnish snow cover locates the country on a transition zone between the maritime and taiga snow zones. Early winter snow bulk densities showed decreasing trends at some locations and/or biotypes during recent decades; during the melt period some increasing trends were seen. Trends seen in long time series of the snow densification behavior were mostly small. Some significant increasing trends in snow densification were observed in the long times series from Jokioinen, Konnevesi and Kittilä. Densification behavior among the biotypes did not differ significantly.
- Subjects
SNOW density; SNOW measurement; SNOW-water equivalent; SOIL densification; SNOW surveys
- Publication
Geophysica, 2013, Vol 49, Issue 1/2, p53
- ISSN
0367-4231
- Publication type
Article