Daniel Viviroli

TL;DR: In this paper, a spatially explicit, global typology of the so-called "water towers" at the 0.5° × 0. 5° resolution is proposed to identify critical regions where disproportionality of mountain runoff as compared to lowlands is maximum, and an Earth systems perspective is considered with incorporation of lowland climates, distinguishing four different types of water towers.

TL;DR: The worldwide distribution and water supply of water towers (snowy or glacierized mountain ranges) is indexed, showing that the most important water towers are also the most vulnerable to socio-economic and climate-change stresses, with huge potential negative impacts on populations downstream.

TL;DR: In this paper, the authors examined the state of knowledge in water resources from a highland-lowland viewpoint, focusing on mountain areas on the one hand and the adjacent lowland area on the other hand, and concluded that effective management of mountain water resources urgently requires more detailed regional studies and more reliable scenario projections.

TL;DR: Wada et al. as discussed by the authors assesses global water stress at a finer temporal scale compared to conventional assessments, using simulations of monthly river discharge from the companion paper, which is confronted with global monthly water demand, defined as the volume of water required by users to satisfy their needs.

TL;DR: In this paper, a catchment-based approach using discharge data provided by the Global Runoff Data Centre (GRDC) was used to analyze the hydrological significance of mountain regions.