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Local variability of sedimentation rate in Lake Arendsee, Germany |
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| Authors: | Burkhard W Scharf Bertram Boehrer Conrad Kopsch |
| Institution: | a Ellhornstraße 21, D-28195 Bremen, Germany b Helmholtz Center for Environmental Research—UFZ, Brueckstraße 3a, D-39114 Magdeburg, Germany c AWI Alfred Wegener Institute for Polar and Marine Research, Telegrafenberg A43, D-14473 Potsdam, Germany d AWI Alfred Wegener Institute for Polar and Marine Research, Columbusstraße, D-27515 Bremerhaven, Germany |
| Abstract: | We measured the thickness and the dry weight of recently deposited sediment along several transects across Lake Arendsee in order to quantify the sedimentation rate and its local variability. As a time marker, we used an artificial marl layer that was deposited by a remediation program in the year 1995. A portion of the sediment deposited during the year was transported from the littoral and the top of the submerged hills to the foot of the slope, where we found the greatest deposition. Within the same lake, the deposited sediment layer varied by a factor of 4 between minimal and maximal values over the same time periods. Lake Arendsee is a holomictic and eutrophic lake with depletion of oxygen in summer time. |
| Keywords: | Sedimentation rate Resuspension Lake morphometry Stratification Oxygen distribution Lake Arendsee |
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