Veit Blauhut

Veit Blauhut
University of Freiburg | Albert-Ludwigs-Universität Freiburg · Institute of Hydrology (IHF)

Dr. rer. nat.
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About

70
Publications
21,917
Reads
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959
Citations
Introduction
We are pleased to announce that our special issue entitled “Drought vulnerability, risk, and impact assessments: bridging the science-policy gap” went online in NHESS today: https://www.natural-hazards-and-earth-system-sciences.net/special_issues/schedule.html Papers (commentaries, review articles, original research) can be submitted on a rolling basis from today onwards until 31 July 2021. We are looking forward to your contributions.
Additional affiliations
October 2020 - present
German Centre for Rail Traffic Research at the Federal Railway Authority
Position
  • Research Associate
September 2019 - present
Technische Universität Dresden
Position
  • Researcher
April 2016 - present
University of Freiburg
Position
  • PostDoc Position

Publications

Publications (70)
Article
Full-text available
A limited number of gauging stations, especially for nested catchments, hampers a process understanding of the interaction between streamflow, groundwater and water usage during drought. Non‐commercial measurement devices can help overcome this lack of monitoring, but they need to be thoroughly tested. The Dreisam River in the South‐West of Germany...
Article
Full-text available
Drought events and their impacts vary spatially and temporally due to diverse pedo-climatic and hydrologic conditions, as well as variations in exposure and vulnerability, such as demographics and response actions. While hazard severity and frequency of past drought events have been studied in detail, little is known about the effect of drought man...
Article
Full-text available
Droughts often have a severe impact on the environment , society, and the economy. The variables and scales that are relevant to understand the impact of drought motivated this study, which compared hazard and propagation characteristics, as well as impacts, of major droughts between 1990 and 2019 in southwestern Germany. We bring together high-res...
Preprint
Process understanding of the interaction between streamflow, groundwater and water usages under drought are hampered by a limited number of gauging stations, especially in tributaries. Recent technological advances facilitate the application of non-commercial measurement devices for monitoring environmental systems. The Dreisam River in the South-W...
Article
Full-text available
Drought events and their impacts vary spatially and temporally due to diverse pedo-climatic and hydrologic conditions, as well as variations in exposure and vulnerability, such as demographics and response actions. While hazard severity and frequency of past drought events have been studied in detail, little is known about the effect of drought man...
Preprint
Full-text available
Droughts often have a severe impact on environment, society, and economy. Only a multifaceted assessment of such droughts and their impacts can provide insights in the variables and scales that are relevant for drought management. Motivated by this aim, we compared hazard and propagation characteristics as well as impacts of major droughts between...
Preprint
Full-text available
Drought events and their impacts vary spatially and temporally due to diverse pedo-climatic and hydrologic conditions, as well as variations in exposure and vulnerability, such as demographics and response actions. While hazardous severity and frequency of past drought events have been studied in detail, little is known about the effect of drought...
Preprint
Full-text available
Droughts are among the most damaging and least understood of all so-called natural hazards. Droughts often lead to long-lasting and cascading impacts on different sectors across multiple spatial scales. Because the impacts of drought are less direct and immediately visible than the impacts of events such as floods or storms, drought has, for a long...
Article
Full-text available
Drought induced low flow events and associated losses in hydro power production highlight the vulnerability to the hydropower sector to drought in Baden-Württemberg. Since the potential to construct novel hydroelectric power stations is limited by available space, an optimised drought risk management is of need. Hence, a drought risk analysis for t...
Research
Full-text available
DRIeR – Zahlen und Fakten stellt Schlüsselergebnisse des Projektes auf Factsheets von je zwei Seiten pro Thema zusammen. Beginnend mit einer Kernaussage werden die Forschungsthemen und Ergebnisse präsentiert. Weitergehende Informationen und eine Übersicht über publizierte Fachartikel sind auf www.drier.uni-freiburg.de zu finden.
Preprint
Full-text available
Abstract. Droughts are multidimensional hazards that can lead to substantial environmental and societal impacts. To understand causes and impacts, multiple variables need to be considered. Many studies identified past drought events and investigated drought propagation from meteorological droughts via soil moisture to hydrological droughts and some...
Article
Full-text available
Droughts are multidimensional hazards that can lead to substantial environmental and societal impacts. To understand causes and impacts, multiple perspectives need to be considered. Many studies have identified past drought events and investigated drought propagation from meteorological droughts via soil moisture to hydrological droughts, and some...
Article
Germany has been affected by several droughts in recent years. As a result, impacts of drought on the public water supply sector in the state of Baden-Württemberg have become more frequent and severe. Some local and regional water supply shortages were caused by a lack of water availability and also by water quality issues. This study polled more t...
Article
In der jüngsten Vergangenheit gab es eine Vielzahl von Dürrefolgen. Auch die öffentliche Trinkwasserversorgung in Deutschland war betroffen. Im Zuge zweier Online-Umfragen beantworteten über 370 Wasserversorger in Baden-Württemberg Fragen zu den Folgen durch Dürre, den Umgang damit sowie die generelle Wahrnehmung von Dürre. Die Ergebnisse zeigen, d...
Article
Drought risk quantifies the likelihood of environmental and socio-economic systems to suffer negative consequences due to drought. The analysis of drought risk is understood as the initial step to foster drought risk management at different scales and thematic foci. To communicate drought risk to stakeholders, a visualisation via risk maps is of pr...
Article
Full-text available
Forecasting of drought impacts is still lacking in drought early-warning systems (DEWSs), which presently do not go beyond hazard forecasting. Therefore, we developed drought impact functions using machine learning approaches (logistic regression and random forest) to predict drought impacts with lead times up to 7 months ahead. The observed and fo...
Poster
Methods. The European Drought Impact report Inventory (EDII) compiles knowledge of drought impacts across Europe from a variety of information sources (Stahl et al. 2016). The dataset now consists of more than 11,000 reported impacts. For this study we investigated the Alpine and pre-Alpine region to indentify the most impacted sectors in this gene...
Article
Full-text available
Since 1990, natural hazards have led to over 1.6 million fatalities globally, and economic losses are estimated at an average of around USD 260–310 billion per year. The scientific and policy communities recognise the need to reduce these risks. As a result, the last decade has seen a rapid development of global models for assessing risk from natur...
Preprint
Full-text available
Abstract. Forecasting drought impacts is still missing in drought early warning systems that presently do not go beyond hazard forecasting. Therefore, we developed drought impact functions using machine learning approaches (Logistic Regression and Random Forest) to predict drought impacts with a lead-time of 7 months ahead. The skill of the drought...
Article
We thank the authors, Brunella Bonaccorso and Karsten Arnbjerg-Nielsen for their constructive contributions to the discussion about the attribution of changes in drought and flood impacts. We appreciate that they support our opinion, but in particular their additional new ideas on how to better understand changes in impacts. It is great that they c...
Preprint
Full-text available
Abstract. Since 1990, natural hazards have led to over 1.6 million fatalities globally, and economic losses are estimated at an average of around $260–310 billion per year. The scientific and policy community recognise the need to reduce these risks. As a result, the last decade has seen a rapid development of global models for assessing risk from...
Article
Full-text available
Drought directly and indirectly affects the entire socio-economic and environmental sectors in southwestern Germany. Such impacts are a result of the drought hazard and an underlying vulnerability of the systems. With respect to climate change and the dynamics of vulnerability over time, it becomes crucial to investigate the preceding components, i...
Article
Full-text available
Present-day drought early warning systems provide the end-users information on the ongoing and forecasted drought hazard (e.g. river flow deficit). However, information on the forecasted drought impacts, which is a prerequisite for drought management, is still missing. Here we present the first study assessing the feasibility of forecasting drought...
Article
Full-text available
Drought directly and indirectly affects human society in a number of ways. In many regions of the world climate change will exasperate the effects of droughts, affect national economies more intensely. The main aim of this article was to catalogue and analyze the drought impacts in the 11 Central and South Eastern European states located in the Dan...
Presentation
Drought impacts socio-economic and social systems worldwide. In order to understand to understand the driving forces of such drought impacts, drought risk, the likelihood of drought impact occurrence, is analysed. Drought risk analysis is understood to be one of the essential steps to foster resilience to drought. But the variety of sectors impacte...
Poster
Full-text available
Treten Dürreperioden häufiger und persistenter auf, so ist mit Einbußen in der Stromproduktion durch Wasserkraft zu rechnen. In Baden-Württemberg ist das Potential zur Stromerzeugung an Fließgewässern erschöpft. Daher ist es von besonderer Bedeutung, Verluste der Energiegewinnung durch Laufkraftwerke flächendeckend zu untersuchen. Im Rahmen einer R...
Poster
Full-text available
Durch Dürre bedingtes Niedrigwasser in Fließgewässern (NW) ist ein unregelmäßig wiederkehrendes Phänomen, welches schwer vorherzusagen ist. Dabei ist nicht nur die Wasserquantität, sondern auch die Wasserqualität direkt betroffen. Im Einzugsgebiet der Dreisam kam es in den letzten Jahren vermehrt zu NW-Ereignissen. So fielen 2015, 2016 und 2018 Tei...
Poster
Full-text available
Das Jahr 2018 war in weiten Teilen Europas durch extreme Trockenheit geprägt. Eine Ereignisanalyse für Baden-Württemberg im Rahmen des Projekts DRIeR analysiert physische Ausprägungen der Dürre im Zuammenhang mit dem breiten Spektrum ökologischer und sozio-ökonomischer Folgen.
Poster
Full-text available
The drought of 2018 caused a wide range of impacts on environment and economy. This contribution explores how different drought impacts were linked to the occurrence of extreme values of hydrometeorological indices. Focusing on Germany, this study is based on drought impact data collected from text reports that are archived in the European Drought...
Conference Paper
Full-text available
Drought impacts are widespread and affect directly or indirectly human and environmental systems globally. In order to understand the determinants of such impacts, drought risk, i.e. the likelihood of drought impact occurrence, is analysed. The development of reliable drought risk assessments (in all its components of drought hazards, exposure and...
Article
Full-text available
For the development of sustainable, efficient risk management strategies for the hydrological extremes of droughts and floods, it is essential to understand the temporal changes of impacts, and their respective causes and interactions. In particular, little is known about changes in vulnerability and their influence on drought and flood impacts. We...
Article
Full-text available
During the last 20 years, Argentina experienced several extreme and widespread droughts in many different regions, including the core cropland areas. The most devastating recent events were recorded in the years 2006, 2009 and 2011. Reported impacts of the main events induced losses of more than 4 billion U.S. dollars and more than 1 million person...
Technical Report
Full-text available
Ziel des hier vorgelegten Niedrigwasser-Syntheseberichts ist die Darstellung der wichtigsten Ergebnisse aus den Niedrigwasser-Pilotstudien der drei Bundesländer Baden-Württemberg, Bayern und Rheinland-Pfalz im Rahmen von KLIWA. KLIWA ist eine Kooperation mit dem Titel „Klimaveränderung und Konsequenzen für die Wasserwirtschaft“. Die Pilotstudien be...
Conference Paper
Full-text available
Das Dürrerisiko, die Wahrscheinlichkeit des Auftretens negativer Auswirkungen durch Dürre, ist ein in Deutschland weitgehend unterschätztes und wenig beachtetes Phänomen. Während es für Hochwas-ser meist eindeutige Schadensstatistiken gibt, sind die Effekte von Dürre nur schwer zu quantifizieren, genaue Schadensinformationen, welche direkt auf Dürr...
Poster
Full-text available
Drought induced low flow extremes, despite a variety of management strategies, can cause direct and indirect impacts on socio economic and ecological functions of rivers. These negative effects determine local risk and are a function of the regional drought hazard and the river system’s vulnerability. Whereas drought risk analysis is known to be es...
Conference Paper
Niedrigwasserereignis des Jahres 2015 hat erneut die Vulnerabilität der Fließgewässer und ihrer Nutzer gegenüber der Naturgefahr gezeigt. Dennoch sind die öffentliche sowie auch die politische Wahrnehmung von Niedrigwasser vergleichsweise gering. Eine Auseinandersetzung mit dem Umgang mit trockenheitsbedingtem Niedrigwasser und eine Minderung regio...
Chapter
Full-text available
Climate change has caused noticeable effects on human health in Europe, mainly as a result of extreme events, an increase in climate-sensitive diseases, and a deterioration in environmental and social conditions. Heat waves were the deadliest extreme weather event in the period 1991–2015 in Europe. Increase in the frequency and intensity of extreme...
Article
Full-text available
Drought is one of the most costly natural hazards in Europe. Due to its complexity, drought risk, meant as the combination of the natural hazard and societal vulnerability, is difficult to define and challenging to detect and predict, as the impacts of drought are very diverse, covering the breadth of socioeconomic and environmental systems. Pan-Eu...
Article
Full-text available
Drought; Hydrology; Impacts; Management; 2015 European drought
Article
Full-text available
In the last decades, there have been an increasing number of vulnerability studies undertaken in the frameworks of several schools of thought and disciplines. This spur of activity is linked to the growing awareness about the importance of shifting from a crisis-reactive approach to a proactive and preventive risk-management approach to deal with n...
Article
Full-text available
p>Drought is a natural hazard that can cause a wide range of impacts affecting the environment, society, and the economy. Providing an impact assessment and reducing vulnerability to these impacts for regions beyond the local scale, spanning political and sectoral boundaries, requires systematic and detailed data regarding impacts. This study prese...
Article
Full-text available
Drought is one of the most costly natural hazards in Europe. Due to its complexity, drought risk, the combination of the natural hazard and societal vulnerability, is difficult to define and challenging to detect and predict, as the impacts of drought are very diverse, covering the breadth of socioeconomic and environmental systems. Pan-European ma...
Article
Full-text available
Drought is a natural hazard that can cause a wide range of impacts affecting the environment, society, and the economy. Assessing and reducing vulnerability to these impacts for regions beyond the local scale, spanning political and sectoral boundaries, requires systematic and detailed data regarding impacts. This study presents an assessment of th...
Conference Paper
Full-text available
The effects of drought on the environment and socio-economic sectors are indisputably linked to each other. Nev-ertheless, past drought research suffered from an evident lack of ground truth in form of past observed impacts. Consequently most drought indicators are missing the link to a drought's effects on natural and human systems, and the majori...
Conference Paper
Full-text available
The risk of natural disasters in a very general sense is a combination of hazard and vulnerability. For drought, the hazard is commonly derived from the statistical analysis of one or a set of drought indicators. Their selection mostly depends on the focus of the study, with the usage of standardized indices experiencing growing popularity. Vulnera...
Technical Report
Full-text available
Conference Paper
Full-text available
Vulnerability description is the key to analyse and understand region-and sector (impact category) specific risk to drought. To derive drought vulnerability indices a variety of approaches can be applied depending on research focus, scale and data availability. Generally, these indices composite from relevant vulnerability factors, past drought imp...
Chapter
Understanding vulnerability is a key to analyse and understand region-and sector-specific risk to drought. Even though vulnerability is understood to be a dynamic process, present approaches derive vulnerability indices at a particular time without accounting for potential changes after drought events or in consequence of legislative changes. To qu...
Article
Full-text available
Drought in Europe is a hazard with a wide range of transboundary, environmental and socio-economic impacts on various sectors including agriculture, energy production, public water supply and water quality. Despite the apparent importance of this natural hazard, observed pan-European drought impacts have not yet been quantitatively related to the m...
Conference Paper
Full-text available
Drought risk analyses require information on drought hazard together with information about potential loss or damage. The magnitude of the latter is closely linked to the specific impacts a drought has on different sectors and to the vulnerability to drought of the assessed system. Drought impact reports gathered in the European Drought Impacts Inv...
Conference Paper
Full-text available
Drought is a very complex and multifarious natural hazard, which causes a variety of direct and indirect environ-mental and socio-economic impacts. For the last 30 years, droughts in Europe caused over 100 billion Euros of losses from impacts in various sectors e.g. agriculture, water quality or energy production. Despite the apparent importance of...
Conference Paper
Full-text available
Drought is a complex natural hazard with severe environmental and socio-economic impacts. Although little can be done in the short term to prevent a drought, actions can be taken to reduce the societal vulnerability to drought, including the development of drought monitoring and early warning systems. Such systems are commonly based on different dr...
Conference Paper
Full-text available
During the past decade, a number of theoretical frameworks have been defined within the Disaster Risk Reduction and Climate Change communities to assess drought vulnerability at different scales, sectors, socio-political contexts, and geo-climatic conditions. However, there is still little consensus around the criteria, dimensions and factors used...
Conference Paper
Full-text available
Drought is a natural hazard that can cause a wide range of impacts affecting the environment, society and economy in a number of ways. Drought analysis often concentrates on particular aspects of droughts with large-scale studies focussing mostly on climate variables and impact studies focussing on local case studies. In times of concern over futur...
Conference Paper
Full-text available
Drought develops slowly and on a large scale, causing a variety of direct and indirect environmental and socio-economic impacts. It is a recurrent, transboundary phenomenon and can affect vast areas and millions of people. The 2003 drought in Europe, for example, caused over 11 billion Euros of losses from impacts on agriculture, water quality, ene...
Poster
Drought develops slowly and on a large scale, causing a variety of direct and indirect environmental and socio-economic impacts. It is a recurrent, transboundary phenomenon and can affect vast areas and millions of people. The 2003 drought in Europe, for example, caused over 11 billion Euros of losses from impacts on agriculture, water quality, ene...
Conference Paper
Full-text available
Drought develops slowly and on a large scale causing a variety of direct and indirect environmental and socio-economic impacts. It is a recurrent, transboundary phenomenon and can affect vast areas and millions of people. The 2003 drought in Europe caused over 11 billion Euros of losses from impacts on agriculture, water quality, energy production,...
Conference Paper
Full-text available
Drought is one of the most disastrous natural hazards in Europe. It cannot be prevented; but its impacts can be reduced by mitigation to increase resilience. In Europe, numerous studies have proposed various investigation-specific (case-specific) drought indicators. Only few studies have tested how commonly used drought hazard indices actually rela...