Ralf Junghanns

Ralf Junghanns
Technische Universität Dresden | TUD · Institut für Abfall- und Kreislaufwirtschaft

Diplom

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29
Publications
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62
Citations

Publications

Publications (29)
Article
Full-text available
The INOWAS Decision Support System (DSS) is an open-source web-service for groundwater management applications, in particular managed aquifer recharge. It is accessible via the interactive graphical user interface (GUI) running in a standard web browser and includes tools of varying complexity. The platform provides the user with features to set up...
Presentation
Despite the financial and ecological benefits of managed aquifer recharge (MAR) as a viable solution for sustainable water resources management, its contribution to safe water supply at global scale is still limited. This is mainly caused by the lack of data on technological costs, hydrogeological site-specific characteristics, the lack of national...
Technical Report
Full-text available
Scenario analysis serves to evaluate various management solutions or to integrate climate, land use or urban change projections into the numerical model. This report describes the main functionalities of the web-based tool “T07 MODFLOW model scenario manager” where various model runs can be easily compared with each other by distinct results visual...
Technical Report
Full-text available
This report describes the main functionality of the web-based tool “Real time modelling”. The real-time modelling tool allows a user to extend an existing numerical groundwater flow model with new sensor data. New stress periods are automatically added to the base model using either constant values or sensor data from the last time step of the base...
Technical Report
Full-text available
This report describes the main functionalities the SMART-Control web-based tool T1B Quantitative microbial risk assessment. The tool helps to quantify the pathogen occurrence in source water and their removal by various treatment steps at MAR facilities by using a probabilistic approach. The interactive web-based QMRA tool supports the evidence-bas...
Technical Report
Full-text available
This report describes the first part of the SMART-Control web-based tool T1: “Initial risk assessment. Part A. Estimation of groundwater hydraulic residence time”. The tool enables water utilities to estimate the groundwater hydraulic residence time at MAR sites by using temperature measurements in influent and recovered water. The tool was develop...
Technical Report
Full-text available
The present report provides a brief description of the hydrogeological conditions underlaying the research test field in Pirna, Germany, and introduces the existing monitoring system that was updated to meet the project objectives. The specific aim of deliverable 5.1 is to demonstrate the integration of the local groundwater monitoring system into...
Technical Report
Full-text available
The present report describes the software infrastructure developed in the SMART-Control project to enable the import of third-party data into the INOWAS platform. Using two different transfer approaches, pre-formatted datasets are either uploaded to a FTP webserver as CSV files or retrieved from public APIs using the open-source monitoring and aler...
Technical Report
Full-text available
This report describes the main functionality of the web-based tool T2. Real time monitoring and control. The tool facilitates the operational management of MAR sites by collecting real-time data from the in-situ site-specific observation systems. Besides data collection, pre-processing and visualisation, the real-time monitoring tool is also equipp...
Research
Full-text available
Managed aquifer recharge (MAR) represents the purposeful recharge of an aquifer for later water recovery or for environmental benefits. To meet various site-specific requirements, different water infiltration techniques are available, making MAR a reliable instrument for sustainable groundwater management. Despite its demonstrated economic and ecol...
Technical Report
Full-text available
This document contains the report of the workshop entitled “Green adaptation strategies for water security in the Central American dry corridor” organized in Nicoya, Costa Rica, on 26 March 2019. The workshop represented the official kick-off meeting of the bilateral German - Costa Rican project “Facilitation of green adaptation techniques for redu...
Article
Full-text available
Suitability maps for managed aquifer recharge (MAR) are increasingly used and hold the potential to be integrated into sustainable groundwater management plans. However, the quality of the maps strongly depends on the input data quality as well as the expertise of the decision-maker. The maps are commonly derived through GIS-based multi-criteria de...
Presentation
Full-text available
Successful implementation of technical solutions for water resources management is not possible without adequate development of institutional and human capacities. In case of managed aquifer recharge (MAR), despite its apparent simplicity, the uptake of subsurface water storage is still rather low at international scale, much lower than other conve...
Poster
Full-text available
Despite its financial and ecological benefits, the contribution of MAR to safe water supply at global scale is still limited due to various reasons. Especially the lack of data on associated risks and the absence of proper monitoring at some MAR facilities reduces the level of public trust, raises questions about the impact of MAR on the affected e...
Article
Full-text available
Suitability maps for managed aquifer recharge (MAR) sites hold a strong potential for integration into sustainable groundwater management plans. An uprising method to identify sites suitable for MAR implementation is GIS-based multi-criteria decision analysis (GIS-MCDA). There are no guidelines or common understanding on how suitability mapping sho...
Article
The INOWAS platform provides a compilation of free web-based tools for groundwater management. All tools are running on a web server and can be accessed via standard web browsers. The implemented analytical equations enable the assessment of saltwater intrusion induced by pumping or sea level rise, the calculation of travel time through unconfined...
Presentation
Full-text available
Künstliche Grundwasseranreicherung hat sich zu einem hilfreichen Instrument für die nachhaltige Bewirtschaftung von Wasserressourcen entwickelt. Wasser wird dabei in Aquifere infiltriert, um es zu einem späteren Zeitpunkt rückzugewinnen oder um es für ökologische Zwecke zu nutzen. Die Anwendungsbereiche für künstliche Grundwasseranreicherung sind v...
Presentation
Full-text available
The INOWAS-DSS platform provides a compilation of open-source web-based tools for planning, optimization and management of managed aquifer recharge (MAR) schemes. All tools are running on a web server and can be accessed via standard web browsers. Besides the numerical simulation core (based on MODFLOW) the platform provides simple empirical and an...
Presentation
Full-text available
The INOWAS-DSS platform provides a collection of free web-based tools for planning, optimization and management of main components of managed aquifer recharge (MAR) schemes. All tools are running on a web server which controls the processing on a number of clustered computers and allows accessibility via standard web browsers. In this way, the INOW...
Presentation
Full-text available
Managed aquifer recharge (MAR) represents a valuable tool for the sustainable management of water resources. In a broader context, MAR can be defined as the purposeful recharge of an aquifer for later recovery or environmental benefits. The complex processes occurring at MAR schemes are generally studied either through direct observations or, based...
Presentation
Full-text available
The INOWAS-DSS platform provides a collection of free web-based tools for planning, management and optimization of main components of MAR schemes. The tools are running on a web-server and can be accessed via standard web browser. The system makes use of GIS tools for data input, management and visualization. The simulation core of the system is r...
Poster
Full-text available
Managed aquifer recharge represents a valuable instrument for sustainable water resources management. The con- cept implies purposeful infiltration of surface water into underground for later recovery or environmental benefits. Over decades, MAR schemes were successfully installed worldwide for a variety of reasons: to maximize the natu- ral storag...
Article
Full-text available
The accelerated industrialization of Hanoi, Vietnam, coupled with a high population growth rate and changing climatic conditions create increasing pressure on the local water balance. Despite abundant precipitations, overexploitation endangers the groundwater resources, which are not able to sustain an adequate water supply. The present paper prese...
Article
1 Einleitung In vielen Ländern weltweit stellt die Nutzung von Grundwasserressourcen zur Gewin-nung von Wasser für die öffentliche Wasserversorgung das wichtigste Standbein der Trinkwasserversorgung dar. Selbst in Ländern, in denen verstärkt Oberflächenwasser verwendet wird, ist das vorhandene Grundwasser eine wichtige Ressource. In Deutsch-land be...

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Projects

Projects (3)
Project
The main objective of SMART-Control is to reduce the risks in the application of sustainable groundwater management through the development and implementation of an innovative web-based, real-time monitoring and control system in combination with risk assessment and management tools. Project duration: 02/2019 - 01/2021 Funding: EU WaterJPI Project consortium: 1 Research Group INOWAS, Department of Hydrosciences, Technische Universität Dresden, Dresden, Germany 2 Berlin Centre of Competence for Water gGmbH, Berlin, Germany 3 adelphi research gGmbH, Berlin, Germany 4 Federal University of Pernambuco, Department of Civil Engineering, Recife, Brazil 5 Universidade Federal da Paraíba, Department of Civil and Environmental Engineering, João Pessoa, Brazil 6 University of Cyprus, Nireas- IWRC and Department of Civil and Environmental Engineering, Nicosia, Cyprus 7 BRGM, French Geological Survey, Montpellier, France 8 Umwelt- und Ingenieurtechnik GmbH, Dresden, Germany 9 SUEZ Eau France, Hyères les Palmiers, France Website: https://smart-control.inowas.com/
Project
Innovative Web-based decision support system for water sustainability under a changing climate.