Talks and Poster Presentations (with Proceedings-Entry):
A. Bartsch, R. Kidd, W. Wagner:
"Diurnal thaw and refreeze during spring snowmelt from Quikscat over entire Siberia";
Talk: 5th EARSEL workshop on Remote Sensing of Snow and Glaciers: Changing Climate - Changing Cryosphere,
Bern;
2008-02-10
- 2008-02-11; in: "Proceedings",
(2008),
6 pages.
English abstract:
The adaptive, diurnal difference, approach developed for Seawinds/QuikScat data over central Siberia allows the determination of the length of the final period of diurnal thaw/refreeze. This dura-tion and the spatial dynamics are closely linked to surface hydrology and ecosystem processes.
The approach has been transferred to entire Russia (>55°N) and the sensitivity assessed. This revealed that some tundra regions are characterized by multiple periods of consecutive days with diurnal thaw and refreeze during spring snowmelt. This needs to be taken into consideration for monitoring of such extensive areas spanning several biomes.
Time series analysis (2000 - 2005) based on the improved snowmelt maps indicates different trends within the boreal, subarctic and arctic environments. They vary for the onset, the duration and the end of snowmelt. This impacts seasonal carbon sequestration dynamics as well as spring/early summer runoff which is directly related to spatial patterns of thaw in the high latitudes
Electronic version of the publication:
http://saturn.unibe.ch/rsbern/people/earsel/papers/Bartsch_Paper.pdf
Created from the Publication Database of the Vienna University of Technology.