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| Titel |
Potential climate change impacts on the water balance of subcatchments of the River Spree, Germany |
| VerfasserIn |
I. Pohle, H. Koch, U. Grünewald |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7340
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| Digitales Dokument |
URL |
| Erschienen |
In: Proceedings of the 15th Workshop on Large-scale Hydrological Modelling ; Nr. 32 (2012-12-11), S.49-53 |
| Datensatznummer |
250017324
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| Publikation (Nr.) |
 copernicus.org/adgeo-32-49-2012.pdf |
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| Zusammenfassung |
Lusatia is considered one of the driest regions of Germany. The climatic
water balance is negative even under current climate conditions. Due to
global climate change, increased temperatures and a shift of precipitation
from summer to winter are expected. Therefore, it is of major interest
whether the excess water in winter can be stored and to which extent it is
used up on increasing evapotranspiration.
Thus, this study focuses on estimating potential climate change impacts on
the water balance of two subcatchments of the River Spree using the Soil and
Water Integrated Model (SWIM). Climate input was taken from 100 realisations
each of two scenarios of the STatistical Analogue Resampling scheme STAR
assuming a further temperature increase of 0 K (scenario A) and 2 K by the
year 2055 (scenario B) respectively. Resulting from increased temperatures
and a shift in precipitation from summer to winter actual evapotranspiration
is supposed to increase in winter and early spring, but to decrease in later
spring and early summer. This is less pronounced for scenario A than for
scenario B. Consequently, also the decrease in discharge and groundwater
recharge in late spring is lower for scenario A than for scenario B. The
highest differences of runoff generation and groundwater recharge between
the two scenarios but also the highest ranges within the scenarios occur in
summer and early autumn. It is planned to estimate potential climate change
for the catchments of Spree, Schwarze Elster and Lusatian Neisse. |
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