TY  - JOUR
A1  - Huss, Matthias
A1  - Bookhagen, Bodo
A1  - Huggel, C.
A1  - Jacobsen, Dean
A1  - Bradley, Raymond S.
A1  - Clague, J. J.
A1  - Vuille, Mathias
A1  - Buytaert, Wouter
A1  - Cayan, D. R.
A1  - Greenwood, G.
A1  - Mark, B. G.
A1  - Milner, A. M.
A1  - Weingartner, Rolf
A1  - Winder, M.
T1  - Toward mountains without permanent snow and ice
JF  - Earths future
N2  - The cryosphere in mountain regions is rapidly declining, a trend that is expected to accelerate over the next several decades due to anthropogenic climate change. A cascade of effects will result, extending from mountains to lowlands with associated impacts on human livelihood, economy, and ecosystems. With rising air temperatures and increased radiative forcing, glaciers will become smaller and, in some cases, disappear, the area of frozen ground will diminish, the ratio of snow to rainfall will decrease, and the timing and magnitude of both maximum and minimum streamflow will change. These changes will affect erosion rates, sediment, and nutrient flux, and the biogeochemistry of rivers and proglacial lakes, all of which influence water quality, aquatic habitat, and biotic communities. Changes in the length of the growing season will allow low-elevation plants and animals to expand their ranges upward. Slope failures due to thawing alpine permafrost, and outburst floods from glacier-and moraine-dammed lakes will threaten downstream populations.Societies even well beyond the mountains depend on meltwater from glaciers and snow for drinking water supplies, irrigation, mining, hydropower, agriculture, and recreation. Here, we review and, where possible, quantify the impacts of anticipated climate change on the alpine cryosphere, hydrosphere, and biosphere, and consider the implications for adaptation to a future of mountains without permanent snow and ice.
Y1  - 2017
U6  - https://doi.org/10.1002/2016EF000514
SN  - 2328-4277
VL  - 5
SP  - 418
EP  - 435
PB  - Wiley
CY  - Hoboken
ER  - 
TY  - JOUR
A1  - Vormoor, Klaus Josef
A1  - Rossler, Ole
A1  - Bürger, Gerd
A1  - Bronstert, Axel
A1  - Weingartner, Rolf
T1  - When timing matters-considering changing temporal structures in runoff response surfaces
JF  - Climatic change : an interdisciplinary, intern. journal devoted to the description, causes and implications of climatic change
N2  - Scenario-neutral response surfaces illustrate the sensitivity of a simulated natural system, represented by a specific impact variable, to systematic perturbations of climatic parameters. This type of approach has recently been developed as an alternative to top-down approaches for the assessment of climate change impacts. A major limitation of this approach is the underrepresentation of changes in the temporal structure of the climate input data (i.e., the seasonal and day-to-day variability) since this is not altered by the perturbation. This paper presents a framework that aims to examine this limitation by perturbing both observed and projected climate data time series for a future period, which both serve as input into a hydrological model (the HBV model). The resulting multiple response surfaces are compared at a common domain, the standardized runoff response surface (SRRS). We apply this approach in a case study catchment in Norway to (i) analyze possible changes in mean and extreme runoff and (ii) quantify the influence of changes in the temporal structure represented by 17 different climate input sets using linear mixed-effect models. Results suggest that climate change induced increases in mean and peak flow runoff and only small changes in low flow. They further suggest that the effect of the different temporal structures of the climate input data considerably affects low flows and floods (at least 21% influence), while it is negligible for mean runoff.
Y1  - 2017
U6  - https://doi.org/10.1007/s10584-017-1940-1
SN  - 0165-0009
SN  - 1573-1480
VL  - 142
SP  - 213
EP  - 226
PB  - Springer
CY  - Dordrecht
ER  -