Abstract. The lack of comprehensive groundwater observations at regional and global scales has promoted the use alternative proxies indices to quantify predict droughts. Among them, Standardized Precipitation Index (SPI) is commonly used characterize droughts in different compartments hydro-meteorological system. In this study, we explore suitability SPI local- regional-scale using more than 2000 wells geologically areas Germany Netherlands. A multiscale evaluation performed station data...

In cold (i.e. boreal, subarctic, snowy) climate zones, dynamic groundwater storage is greatly affected by the timing and amount of snowmelt. With global warming, climates in northern hemisphere will transition to temperate. As temperatures rise, dominant type precipitation change from snow rain winter. Further, growing season prolonged. This has a direct impact on aquifer recharge pattern. However, little known about effect changing annual regimes storage. The present work deduces shifting...

Abstract A new method is presented to efficiently estimate daily groundwater level time series at unmonitored sites by linking dynamics local hydrogeological system controls. The proposed approach based on the concept of comparative regional analysis, an widely used in surface water hydrology, but uncommon hydrogeology. Using physiographic and climatic site descriptors, utilizes regression analysis cumulative frequency distributions levels (groundwater head duration curves, HDC) locations....

Interdisciplinary collaboration, particularly between natural and social sciences, is perceived as crucial to solving the significant challenges facing humanity. However, despite need for such collaboration being expressed more frequently intensely, it remains unclear what degree actually takes place, trends developments there are which actors involved. Previous studies, often based on bibliometric analysis of large bodies literature, partly observed an increase in interdisciplinary general,...

Abstract Time series of groundwater head measurements serve as a primary source information on systems. In different systems, and across several scales, we observe multitude patterns in time series, resulting from complex hydrogeological setups. Unlike surface hydrology, there is no generalized classification to categorize quantify the dynamics series. This leads lack tools that could help us disentangle contained systematic way. To approach such classification, present principle for...

Abstract. Today there is a great consensus that water resource research needs to become more holistic, integrating perspectives of large variety disciplines. Groundwater and surface (hereafter: GW SW) are typically identified as different compartments the hydrological cycle were traditionally often studied managed separately. However, despite this separation, these respective fields study usually not considered be They seen specializations hydrology with focus yet similar theory, concepts,...

Classification and similarity based methods, which have recently received major attention in the field of surface water hydrology, namely through PUB (prediction ungauged basins) initiative, not yet been applied to groundwater systems. However, it can be hypothesised, that principle "similar systems responding similarly similar forcing" applies subsurface hydrology as well. One fundamental prerequisite test this hypothesis eventually apply make "predictions for systems" is efficient methods...

Abstract The main goal of this study is to explore whether the ideas established by surface water hydrologists in context predictions ungauged basins can be useful hydrogeology. concrete question it possible create predictive models for groundwater systems with no or few observations based on knowledge derived from similar which are well observed. To do so, analyzes relationship between temporal dynamics levels and climatic physiographic characteristics. analysis data 341 wells Southern...

Recently, groundwater in Sweden has attracted media attention due to supply shortages caused by dry periods and low levels. About half of Swedish drinking water stems from groundwater. The small aquifers are highly dependent on frequent sufficient recharge. Groundwater recharge forms the link between meteorological drought thus main climate change sustainable supply. This study evaluated whether current knowledge is mitigate impacts change. A review international literature regions with...

Groundwater level fluctuations are caused by spatial and temporal superposition of processes within outside the aquifer system. Most subsurface usually observed on a small scale. Upscaling to regional scale, as required for future climate change scenarios, is difficult due data scarcity increasing complexity. In contrast limited availability system characteristics, high-resolution records groundwater hydrographs more generally available. Exploiting information contained in these should thus...

Abstract A new concept is proposed for describing, analysing and predicting the dynamic behaviour of groundwater resources based on classification similarity. The makes use ideas put forward by “PUB” (predictions in ungauged basins) initiative surface-water hydrology. One approaches developed PUB uses principle that similar catchments, exposed to weather conditions, will generate a discharge response at catchment outlet. This way, models well-observed catchments can be used make predictions...

Groundwater represents more than 97% of the globally available freshwater resources. is situated in geological structures subsurface and therefore not visible, difficult to characterize manage. As a consequence, it often adequately considered by authorities, general public – education. However, teaching learning Hydrogeology Management at universities, as well continuing education training for professionals, essential deal with future challenges. For this reason, important use...

Abstract. Future risks for groundwater resources, due to global change are usually analyzed by driving hydrological models with the outputs of climate models. However, this model chain is subject considerable uncertainties. Given high uncertainties it essential identify processes governing dynamics, as these likely affect resources in future, too. Information about dominant mechanisms can be achieved analysis long-term data, which assumed provide insight reaction changing conditions...

Abstract. The lack of comprehensive groundwater observations at regional and global scales has promoted the use alternative proxies indices to quantify predict droughts. Among them, Standardized Precipitation Index (SPI) is commonly used characterize droughts in different compartments hydro-meteorological system. In this study, we explore suitability SPI local scale using more than 2000 wells geologically areas Germany Netherlands. A multiscale evaluation performed station data their...

Climate change poses additional risks for natural and human systems including the hydrological cycle, leading to altered temporal spatial variation of hydroclimatic conditions. This work assessed current understanding dryness wetness conditions in Sweden over last two millenniums based on proxy instrumental data, as well climate model simulations projections until end twenty-first century. The assessment represents a summary existing literature concerning analysis four selected indices...