38291
2014
2014
eng
1305
1321
17
4
18
article
Copernicus
Göttingen
1
--
--
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Comparing impacts of climate change on streamflow in four large African river basins
This study aims to compare impacts of climate change on streamflow in four large representative African river basins: the Niger, the Upper Blue Nile, the Oubangui and the Limpopo. We set up the eco-hydrological model SWIM (Soil and Water Integrated Model) for all four basins individually. The validation of the models for four basins shows results from adequate to very good, depending on the quality and availability of input and calibration data.
For the climate impact assessment, we drive the model with outputs of five bias corrected Earth system models of Coupled Model Intercomparison Project Phase 5 (CMIP5) for the representative concentration pathways (RCPs) 2.6 and 8.5. This climate input is put into the context of climate trends of the whole African continent and compared to a CMIP5 ensemble of 19 models in order to test their representativeness. Subsequently, we compare the trends in mean discharges, seasonality and hydrological extremes in the 21st century. The uncertainty of results for all basins is high. Still, climate change impact is clearly visible for mean discharges but also for extremes in high and low flows. The uncertainty of the projections is the lowest in the Upper Blue Nile, where an increase in streamflow is most likely. In the Niger and the Limpopo basins, the magnitude of trends in both directions is high and has a wide range of uncertainty. In the Oubangui, impacts are the least significant. Our results confirm partly the findings of previous continental impact analyses for Africa. However, contradictory to these studies we find a tendency for increased streamflows in three of the four basins (not for the Oubangui). Guided by these results, we argue for attention to the possible risks of increasing high flows in the face of the dominant water scarcity in Africa. In conclusion, the study shows that impact intercomparisons have added value to the adaptation discussion and may be used for setting up adaptation plans in the context of a holistic approach.
Hydrology and earth system sciences : HESS
10.5194/hess-18-1305-2014
1027-5606
1607-7938
wos:2014
WOS:000335375300005
Aich, V (reprint author), Potsdam Inst Climate Impact Res, Potsdam, Germany., aich@pik-potsdam.de
IMPACT2c project
Valentin Aich
Stefan Liersch
T. Vetter
S. Huang
J. Tecklenburg
P. Hoffmann
H. Koch
S. Fournet
Valentina Krysanova
N. Mueller
Fred Fokko Hattermann
Institut für Geowissenschaften
Referiert
Open Access
Institut für Erd- und Umweltwissenschaften
46578
2017
2017
eng
14317
14322
7
8
article
Nature Publ. Group
London
1
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Probing ultrafast pi pi*/n pi* internal conversion in organic chromophores via K-edge resonant absorption
Nature Communications
10.1038/s41467-017-00069-7
28642477
2041-1723
wos:2017
29
WOS:000403876000002
Koch, H; Guhr, M (reprint author), Stanford PULSE Inst, SLAC Natl Accelerator Lab, 2575 Sand Hill Rd, Menlo Pk, CA 94025 USA.; Koch, H (reprint author), Norwegian Univ Sci & Technol, Dept Chem, NO-7491 Trondheim, Norway.; Guhr, M (reprint author), Univ Potsdam, Inst Phys & Astron, Karl Liebknecht Str 24-25, D-14476 Potsdam, Germany., henrik.koch@ntnu.no; mguehr@uni-potsdam.de
AMOS program within the Chemical Sciences, Geosciences, and Biosciences Division of the Office of Basic Energy Sciences, Office of Science, U.S. Department of Energy; NOTUR [nn2962k]; Office of Science Early Career Research Program through the Office of Basic Energy Sciences, U.S. Department of Energy; NB [DE-SC0012376]; Lichtenberg Professorship from the Volkswagen foundation; German National Academy of Sciences Leopoldina [LPDS2013-14]; FP7-PEOPLE-IOF [625321]; European Research Agency [298210]; AIAS-COFUND program [609033]; Knut and Alice Wallenberg Foundation, Sweden; Swedish Research Council
importub
2020-04-20T02:38:01+00:00
filename=package.tar
b17789ba71310670e7d54f5d2e8c03be
T. J. A. Wolf
R. H. Myhre
J. P. Cryan
S. Coriani
R. J. Squibb
A. Battistoni
Nora Berrah
Christoph Bostedt
Philip H. Bucksbaum
G. Coslovich
R. Feifel
K. J. Gaffney
J. Grilj
T. J. Martinez
S. Miyabe
S. P. Moeller
M. Mucke
A. Natan
R. Obaid
T. Osipov
O. Plekan
S. Wang
H. Koch
Markus Guehr
Institut für Physik und Astronomie
Referiert
Import