Deadline for manuscript submissions: 30 April 2020.

Dear Colleagues,

This Special Issue of Atmosphere is dedicated to "Climatological and Hydrological Processes in Mountain Regions". Due to their complex topography and small-scale heterogeneity with respect to many land-surface characteristics (e.g., land cover or soil conditions), climatological and hydrological processes in mountain regions differ from those in other regions of the world. Steep gradients in climate (e.g., temperature or solar radiation) often induce similarly rapid changes in hydrological conditions (e.g., evapotranspiration or the absence/presence of a snow cover), with the processes in the atmosphere and at the land surface being strongly linked due to various mechanisms of interaction and feedback. With respect to climate change and its effects on water resources, mountain regions are also characterized by very particular spatiotemporal patterns due to such phenomena as “elevation-dependent warming” and the often nonlinear response of snow- and ice-dominated regions to a changing climate.

To understand and describe the unique and complex climatological and hydrological setting in mountain regions, monitoring and modeling techniques represent important tools. While both share the ability to provide new knowledge (e.g., for scientific advance or decision support) under present-day conditions, climatological and hydrological models also allow us to assess potential changes in the climate and water systems in the light of global change.

Given the climatological and hydrological uniqueness of mountain environments as well as their particular sensitivity to environmental change, we invite you to contribute an article to this Special Issue by reporting on monitoring and modeling studies that provide new insights into climatological and hydrological processes in mountain regions. We thereby encourage research including (but not limited to) studies on the development and/or application of innovative modeling techniques, on regionalization and scaling issues in climatology and hydrology, on land surface–atmosphere interactions as well as on energy and water fluxes in different subsystems of the atmosphere/hydrosphere. Articles on human–climate and human–water interactions in mountain regions as well as on global-change-related alterations in the climate and water systems are also highly encouraged.

Dr. Thomas Marke
Dr. Wolfgang Gurgiser
Guest Editors