Jens Christian Refsgaard
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View article: Towards more credible models in catchment hydrology to enhance hydrological process understanding: Preface
Towards more credible models in catchment hydrology to enhance hydrological process understanding: Preface Open
Catchment modelling has undergone tremendous developments during the past decades. In the 1970s, the focus was on simulation of catchment runoff with process descriptions and data inputs being lumped to the catchment scale. Later developme…
View article: Towards more credible models in catchment hydrology to enhance hydrological process understanding: Preface
Towards more credible models in catchment hydrology to enhance hydrological process understanding: Preface Open
Catchment modelling has undergone tremendous developments during the past decades. In the 1970s, the focus was on simulation of catchment runoff with process descriptions and data inputs being lumped to the catchment scale. Later developme…
View article: Post Audit of Groundwater Model Predictions under Changing Conditions
Post Audit of Groundwater Model Predictions under Changing Conditions Open
Post audits of hydrological or groundwater models are the last part of the modelling protocol, where the original model predictions are tested using new data obtained after a certain period. The evaluation of model predictions and associat…
View article: Protocol for a cohort study to evaluate the effectiveness and cost-effectiveness of general population screening for cardiovascular disease: the Viborg Screening Programme (VISP)
Protocol for a cohort study to evaluate the effectiveness and cost-effectiveness of general population screening for cardiovascular disease: the Viborg Screening Programme (VISP) Open
Introduction The prevalence of cardiovascular disease (CVD) is increasing. Furthermore, asymptomatic individuals may not receive timely preventive initiatives to minimise the risk of further CVD events. Paradoxically, 80% of CVD events are…
View article: Hydroinformatics impact on hydrological modelling
Hydroinformatics impact on hydrological modelling Open
Mike Abbott was an outsider to hydrological science, who nevertheless fundamentally advanced hydrological modelling by introducing knowledge from computational hydraulics and later hydroinformatics. His main contribution was the developmen…
View article: Use of expert elicitation to assign weights to climate and hydrological models in climate impact studies
Use of expert elicitation to assign weights to climate and hydrological models in climate impact studies Open
Various methods are available for assessing uncertainties in climate impact studies. Among such methods, model weighting by expert elicitation is a practical way to provide a weighted ensemble of models for specific real-world impacts. The…
View article: Comment on hess-2021-597
Comment on hess-2021-597 Open
Abstract. Various methods are available for assessing uncertainties in climate impact studies. Among such methods, model weighting by expert elicitation is a practical way to provide a weighted ensemble of models for specific real-world im…
View article: Towards a More Robust Evaluation of Climate Model and Hydrological Impact Uncertainties
Towards a More Robust Evaluation of Climate Model and Hydrological Impact Uncertainties Open
The uncertainty of climate model projections is recognized as being large. This represents a challenge for decision makers as the simulation spread of a climate model ensemble can be large, and there might even be disagreement on the direc…
View article: The effect of weighting hydrological projections based on the robustness of hydrological models under a changing climate
The effect of weighting hydrological projections based on the robustness of hydrological models under a changing climate Open
International audience
View article: Are maps of nitrate reduction in groundwater altered by climate and land use changes?
Are maps of nitrate reduction in groundwater altered by climate and land use changes? Open
Nitrate reduction maps have been used routinely in northern Europe for calculating the efficiency of remediation measures and the impact of climate change on nitrate leaching. These maps are, therefore, valuable tools for policy analysis a…
View article: Reply on AC2
Reply on AC2 Open
Abstract. Hydrological catchment models are important tools that are commonly used as the basis for water resource management planning. In the 1960s and 1970s, the development of several relatively simple models to simulate catchment runof…
View article: Comment on hess-2021-597
Comment on hess-2021-597 Open
Abstract. Various methods are available for assessing uncertainties in climate impact studies. Among such methods, model weighting by expert elicitation is a practical way to provide a weighted ensemble of models for specific real-world im…
View article: Use of expert elicitation to assign weights to climate and hydrological models in climate impact studies
Use of expert elicitation to assign weights to climate and hydrological models in climate impact studies Open
Various methods are available for assessing uncertainties in climate impact studies. Among such methods, model weighting by expert elicitation is a practical way to provide a weighted ensemble of models for specific real-world impacts. The…
View article: Comment on hess-2021-542
Comment on hess-2021-542 Open
Abstract. Hydrological catchment models are important tools that are commonly used as the basis for water resource management planning. In the 1960s and 1970s, the development of several relatively simple models to simulate catchment runof…
View article: Are maps of nitrate reduction in groundwater altered by climate andland use changes?
Are maps of nitrate reduction in groundwater altered by climate andland use changes? Open
Nitrate reduction maps have been used routinely in Northern Europe for calculating efficiency of remediation measures and impact on climate change on nitrate leaching and are as such valuable tools for policy analysis and mitigation target…
View article: Nitrate Management Discourses in Poland and Denmark—Laggards or Leaders in Water Quality Protection?
Nitrate Management Discourses in Poland and Denmark—Laggards or Leaders in Water Quality Protection? Open
The most significant source of nitrate pollution in the European Union (EU) is attributed to agricultural activities, which threaten drinking water, marine, and freshwater resources. The Nitrates Directive is a key feature of the Water Fra…
View article: Climate change: Sources of uncertainty in precipitation and temperature projections for Denmark
Climate change: Sources of uncertainty in precipitation and temperature projections for Denmark Open
Global Climate Models (GCMs) are the main tools used to assess the impacts of climate change. Due to their coarse resolution, with cells of c. 100 km × 100 km, GCMs are dynamically downscaled using Regional Climate Models (RCMs) that bette…
View article: Real-time simulation of surface water and groundwater with data assimilation
Real-time simulation of surface water and groundwater with data assimilation Open
Data assimilation (DA) has proven to be a useful technique in real-time hydrological modeling and forecasting. Jointly assimilating both surface water and groundwater data has promising application value for hydrological simulations in are…
View article: Shared socio-economic pathways extended for the Baltic Sea: exploring long-term environmental problems
Shared socio-economic pathways extended for the Baltic Sea: exploring long-term environmental problems Open
Long-term scenario analyses can be powerful tools to explore plausible futures of human development under changing environmental, social, and economic conditions and to evaluate implications of different approaches to reduce pollution and …
View article: On the skill of raw and post-processed ensemble seasonal meteorological forecasts in Denmark
On the skill of raw and post-processed ensemble seasonal meteorological forecasts in Denmark Open
This study analyzes the quality of the raw and post-processed seasonal forecasts of the European Centre for Medium-Range Weather Forecasts (ECMWF) System 4. The focus is given to Denmark, located in a region where seasonal forecasting is o…