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Main Topics TOPIC 1 -‐ WHAT ROLE DO OR SHOULD HYDROGEOLOGISTS PLAY IN OUR SOCIETIES? How has the hydrogeologists’ (HG) role in civil society evolved since 1956? What is the HGs’ contribution to regulation? Which technical elements must be provided by HGs to build public decisions? How may HGs contribute to participative approaches? The role of HGs in terms of popularization and communication. TOPIC 2 -‐ HYDROGEOLOGY(ISTS) AND ECONOMIC DEVELOPMENT The role of groundwater in economic development and population livelyhoods. The role of the IAH Early Career Hydrogeologists’ Network in supporting economic development. The emergence of young skilled hydrogeologists in developing countries. Groundwater and development in semi-‐arid countries. Thermal and mineral water and economic local development. TOPIC 3 -‐ HYDROGEOLOGISTS FOR THE FUTURE: EDUCATION AND TRAINING Establishing new competencies and skills, preserving existing expertise. New teaching and training methodologies: webinars, MOOCs… Data banking and sharing in hydrogeology, open data, interoperability, crowdsourcing. From scientists to the public, and from the public to scientists. TOPIC 4 -‐ ECONOMICS IN GROUNDWATER AND GROUNDWATER MANAGEMENT What is the economic value of groundwater in its various, sometimes competing, uses? How can groundwater allocation be optimized, considering present and future economic uses, ecosystem services and future generations? Which economic instruments and institutions can ensure efficient and equitable groundwater allocation? How to integrate hydrogeological and economic models for groundwater management plans? Which models for successful Groundwater User’s Associations? How to engage rural communities in the design of long term sustainable groundwater management plans? TOPIC 5 -‐ GROUNDWATER, AND GLOBAL & CLIMATE CHANGE Impact of climate change and global change on groundwater. Hydrogeological mitigation and remediation of climate change. Carbon dioxide storage in deep saline and potential impacts on shallow aquifers. TOPIC 6 -‐ ACTIVE MANAGEMENT OF GROUNDWATER IN THE WATER CYCLE Groundwater/surface water, an integrated view. Artificial recharge of aquifers, underground dams. Wastewater reuse and groundwater. Drinking water supply in Karst regions and Active Management of groundwater. TOPIC 7 -‐ GROUNDWATER USES AND MANAGING GROUNDWATER USE CONFLICTS Groundwater and health, point source and nonpoint-‐source contamination. Emerging contaminants. Groundwater and agriculture. Urban hydrogeology, on-‐site sanitation. Groundwater remediation. Groundwater and energy, Underground storage. Mining, tunnels and man-‐made underground works. Post-‐mining groundwater management. Transboundary aquifers.
TOPIC 8 -‐ PROGRESS IN CONCEPTUAL MODELS, TOOLS AND METHODS Development of new research areas. Conceptual models of aquifers: Karstic, Hard rock, Volcanic, Island, and coastal aquifers, Thermal and mineral waters. Isotopes and residence time tracers; hydrogeophysics; new geophysical methods. New trends in modelling. Microbiology, metagenomics, groundwater fauna, groundwater dependent ecosystems.
Provisional sessions -‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐ The eight topics of the Congress are completed with "provisional sessions" that aim at favoring the submission of abstracts focused on a specific aspect of the topic. These "provisional sessions" are animated by specialists of the field during the abstract submission process. The list of "provisional sessions" will be progressively completed till the end of the abstract submission process. Volunteers for animating a field not yet covered by a listed "provisional session" can contact the scientific chairs of the congress at the following address [email protected]. During the submission of an abstract, it’s necessary to indicate the targeted topic (tick the appropriate box). It’s possible (but not mandatory) to indicate the targeted session in the first line of the abstract (for example: "Targeted provisional session N°8.01"). Most of these "provisional sessions" will transform into sessions of the Congress; it will however depend on the number and quality of the abstracts that will be accepted by the Scientific Committee. -‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐ TOPIC 1 -‐ WHAT ROLE DO OR SHOULD HYDROGEOLOGISTS PLAY IN OUR SOCIETIES? Poster session P1.01: Exploring the future of groundwater management and science (poster session) The 60th anniversary of IAH offers a unique opportunity to collectively reflect on how hydrogeologists will contribute to address emerging water management challenges in the coming decades. The profession will increasingly be confronted to rapidly changing management problems induced by climate, economic and technological change. The tools available to solve these problems will also evolve rapidly (metrology, geophysical methods, modeling and computing…). Disciplinary frontiers are progressively opening up, calling for greater collaboration between specialists of biophysical processes and social scientists. Last but not least, scientists are confronted with changing expectations from the civil society which calls for greater stakeholder and citizen involvement in the production of knowledge. In that context, we are inviting conference participants to submit 2-‐4 pages written contributions describing their vision of future development of the profession of hydrogeologist. The time frame considered is 2050. Selected contributions will be offered a poster presentation and they will be included in the conference proceedings. A synthesis prepared by the conveners of this poster session will be presented in a plenary session. Conveners : Jean-‐Daniel Rinaudo (Brgm, France) and Patrick Lachassagne (Water Institute by Evian, France
Poster session P1.02: Groundwater pathogens, Infection, Society, and Health Recent global estimates suggest that approximately one third of the world’s population depends upon a daily groundwater supply, with the use of this resource frequently favoured due to typically good microbial quality in its natural state. However, groundwater may be contaminated by a range of enteric pathogens; associated outbreaks have been reported from diverse socioeconomic, climactic and geological regions. Endemic and epidemic infection may lead to loss of life, diminished social and psychological wellbeing, and significant economic costs at both the individual and community levels. Groundwater contamination by pathogens including (but not limited to) verotoxigenic E. coli, Cryptosporidium spp. and enteric viruses are not only associated with sanitary deficiencies but also inadequate understanding of the processes of pathogenic attenuation, survival and transport in the subsurface. In recognition of these issues, the next Thematic Issue of the Hydrogeology Journal entitled “Hydrogeology and Health” will bring together invited contributions from leading experts in subsurface microbiology, epidemiology, and engineering. This accompanying themed session similarly aims to explore multidisciplinary approaches and solutions to what is an increasingly important multidisciplinary problem. Contributions are sought to address all aspects of the waterborne infection process, including groundwater pathogen sources, subsurface microbial source tracking, emerging hydrogeological principles of pathogenic mechanisms, subsurface and catchment modelling, quantitative microbial risk assessment, outbreak case studies, antimicrobial resistance, use of bottled groundwater, and the sociatal effects of groundwater contamination. Conveners : P. Hynds (DIT/ESHI, Ireland, [email protected]) Poster session P1.03: Delivering hydrogeological knowledge: talking about outcomes and making outcomes talk At a time where global changes critically affect the environment and natural resources, and societies, the future of groundwater uses have never been so uncertain worldwide. The diffusion of hydrogeological knowledge and its uncertainty is thus more than ever a critical issue. Like any producer of knowledge, Hydrogeologists must find a way to deliver technical elements valuable for the water users, decision or policy makers. The question is where is the balance between what the results actually tell and by producing these results, what can Hydrogeologists make them tell. The other question underlying this is how interlocutors receive the message and to what extend they actually guide the research questions of Hydrogeologists. Are invited in this session contributions presenting 1) how technical elements produced by Hydrogeologists are assimilated and used by decision makers, 2) experiences where technical elements were pointed out or diverted to serve specific goals, 3) the place hydrogeological knowledge in the water management decision process, 4) scientific controversy implying divergent interpretation of hydrogeological results. Either case studies or generic approaches are welcome. Conveners : Massuel Sylvain (IRD, France, [email protected]), Riaux J. (IRD, France, [email protected]), Aditi Mukherji (ICIMOD, Nepal, [email protected])
Poster session P1.04: A Voice for Groundwater Hydrogeologists have the responsibility of being stewards of groundwater and watersheds, communicators, and educators. They, in fact, play an important role in society in characterizing and protecting water, hopefully providing information and opinions about past, present, and proposed activities on the land and how to manage water and watersheds. This is particularly the case when land development and industrial activities (e.g., Oil and Gas, Mining) have negative impacts on watersheds and groundwater. The majority of the hydrogeological studies are completed by the industries in support of their projects and may not always be objective or thorough enough. This session is focusing on hydrogeologists representing First Nations, local governments, and citizen organizations and who are responsible for bringing complementary and/or contradictory hydrogeological studies to studies provided by the industry. The challenge faced by these hydrogeologists is to bring light to groundwater related issues, to gather as much information as possible (with often very limited funding resources), and to tell an objective story in simple terms to people who live on the land, need to make decisions, and are not experts in hydrogeology. Conveners : Gilles Wendling (GW Solutions, Canada, [email protected])
TOPIC 2 -‐ HYDROGEOLOGY(ISTS) AND ECONOMIC DEVELOPMENT Session 2.01 -‐ Hydrogeology in developing countries. Groundwater in semiarid regions – a long-‐term view on changes in aquifer balances. Aquifers represent a key resource for the economic development of semiarid regions due to (i) relatively higher volume and larger extent of groundwater compared to surface water, and ii) lower sensitivity of groundwater resources to short time scale climate variability. Over the past decades groundwater recharge and discharge rates have dramatically changed in these regions as a consequence of the numerous forms of global change like modifications of land use and land cover, increased pumping (irrigation, domestic water), hydraulic works, and wet and dry climate cycles. This session will focus on multidecadal evolution of aquifer balances, with a focus on: -‐ direct (water table surveys) and indirect (vadose zone, environmental tracers) evidence of these changes, -‐ quantitative and qualitative consequences in terms of biophysical processes and exploitation by populations, -‐ impacts on accuracy and reliability of groundwater models at various scales, especially with respect to potential future changes. Conveners: Guillaume Favreau (IRD, France, [email protected]), Christian Leduc (IRD, France, [email protected]), Bridget Scanlon (University of Texas at Austin, USA, [email protected]) Session 2.02 -‐ Groundwater for sustainable water supplies in developing countries Increasing water demand for sustaining human activities is raising severe concerns worldwide, and particularly in developing countries where the access to water is already poor. To support developing countries moving out of poverty, adequate and safe water supply is a priority, and developing groundwater is often the best solution due to its dispersed occurrence and its ability to buffer climate variability. However, sustainably developing and managing groundwater supplies requires knowledge about aquifer systems and groundwater chemistry and how they respond to stresses from climate, abstraction, land use change and contamination. This session focuses on groundwater supplies in developing countries and aims to discuss: (1) the contribution of groundwater to domestic and agricultural needs; (2) new approaches for improving knowledge on groundwater availability and renewability; (3) current and future challenges of increasing groundwater supply in developing countries; and (4) the opportunities of developing participative approaches for long-‐term sustainable management. Case studies of successful or unsuccessful projects are welcome. Conveners : Jean-‐Michel Vouillamoz (IRD-‐LTHE, France -‐ Direction Générale de l'Eau, Benin), Viviana Re (Ca’ Foscari University of Venice, Italy – National Engineering School of Sfax, Tunisia), Alan MacDonald (British Geological Survey, United Kingdom)
Session 2.03 -‐ Mineral and Thermal water: the role in maintaining public health in developing societies Curative effects of groundwaters with specific natural chemical composition and elevated temperatures on human health are known from centuries in many countries and regions of the world. Nowadays such waters are treated as valuable resources (e.g. balneological resources, therapeutic waters), are used in spas with special therapeutic installations and swimming pools, they are subject of separate legal regulations in many aspects, e.g. in relation to chemical composition and content of pharmacologically active elements, mineralization, temperature, protection zones, ways of disposal and treatment while reused or released to the environment. Independent of their medical character these waters are also of great economic significance for local societies playing often a crucial role in maintaining working places, giving a base for small business development, in many countries they are also part of the governmental rehabilitation systems. This session is dedicated to show different aspects of utilization of mineral and thermal water as a balneological resource which plays a positive role not only in sustainable maintaining of public health but also providing environment for local economic development. Presentations or posters are welcome which shows new developments in curative water exploration and utilization, legal aspects of their use and disposal, new ways of curative resources management, and the influence on the local societies. Conveners : tentative proposition (is subject to further agreement) Istvan Fórizs ([email protected]), or Tomas Vylita (info@geologie-‐vylita.cz), or Jim LaMoreaux ([email protected])
TOPIC 3 -‐ HYDROGEOLOGISTS FOR THE FUTURE: EDUCATION AND TRAINING Session 3.01 -‐ Transdisciplinary and participatory approaches in groundwater research and management under conditions of Global Change There is a growing consensus among scientists, policy makers and society in general that the huge challenges of a changing world – in particular, climate change, but also social, political and demographic changes -‐ can only be solved by through collaboration between scientists from different disciplines. Moreover, there is growing agreement that science needs to involve the opinions and the local knowledge of stakeholders and the general public to make research results applicable and useful. The underlying concepts are known as “participatory research”, “transdisciplinarity” or simply “science with society”. Participation is a key concept of regulatory initiatives such as the European Water Framework Directive and forms and essential concept within Integrated Water Resources Management. In particular in the field of groundwater, the world's largest, best protected and most exploited freshwater resource, dependencies of nature and humans are of outstanding importance. Groundwater research is often applied and thus dependent on the feedbacks with stakeholders and policy makers. In this session, we invite contributions that describe experiences from participatory, transdisciplinary collaboration between groundwater science and society. We welcome both case studies and generic approaches which demonstrate how opinions and knowledge from outside the research arena can be actively used to develop new methodologies. We particularly welcome contributions where participatory approaches have been used to develop strategies for the mitigation of the effects of global and climate change, to translate and communicated the consequences of uncertainties and system complexity and to adjust groundwater management schemes to societal needs. Convener : Roland Barthel (University of Gothenburg, Sweden, [email protected]), …. – I have a number of co-‐conveners in mind that I would invite in case the organizing committee agrees to this session proposal.
TOPIC 4 -‐ ECONOMICS IN GROUNDWATER AND GROUNDWATER MANAGEMENT Session 4.01.-‐ Innovative economic instruments and institutions for achieving sustained groundwater use Groundwater resources are increasingly being used intensively worldwide. While this allowed significant short term economic development, it also generated longer term negative environmental, social and economic impacts. Policy makers are increasingly aware of the need to implement policies that can ensure sustained groundwater through better control of groundwater abstraction. The approach generally consists of capping total water abstraction (based on hydrogeological studies) before allocating water entitlements to users or groups of users. This shift from an open access regime to one of regulated abstraction raises important economic questions which this session intends to investigate. On which basis should individual water entitlements be allocated to individual or groups of users, considering economic efficiency and social justice criteria? What mechanisms should be implemented to facilitate temporary or permanent reallocation of water among users? What different models are there for these reallocation schemes? What should be the relative role of the State and water users associations in monitoring and enforcing water allocation rules? What is the social acceptability of alternative policy options and how do stakeholders influence the policy reform process? What is the fundamental role of property rights and tenure arrangements to water and land in relation to groundwater? This session is seeking contributions dealing with: -‐ Case studies describing recent policy development; we particularly welcome papers dealing with groundwater markets; the establishment of groundwater users associations; monitoring and enforcement problems; the political economy of groundwater policy reform; stakeholders’ engagement in such groundwater policy reform. -‐ The design of innovative economic instruments and associated institutions; the evaluation of their impact using economic models, experimental economics or participatory approaches. Conveners : Jean-‐Daniel Rinaudo (BRGM, France), Guillermo Donoso (Pontificia Universidad Catolica de Chile), Elena Lopez Gunn (ICATALIST and University of Leeds, UK) Session 4.02 -‐ Integrated socio-‐economic and biophysical modeling for groundwater and conjunctive use management Aquifers are part of larger complex socio-‐ecological systems, whose dynamics are determined by hydrological, hydrogeological, ecological, social, institutional and economic processes. Water managers increasingly express the need to base their decisions on models that reflect this complexity. This session seeks contributions presenting integrated groundwater management models that have been developed to support operational and planning decisions. We are interested in papers reflecting on the modelling process itself the interactions between scientists and water managers in that processes, and their potential for the design of more efficient and sustainable water and land use management strategies. Conveners : Antony Jakeman (Australian National University, Australia); Manuel Pulido-‐Velazquez (Universitat Politècnica de Valencia, Spain)
Session 4.03 -‐ Privatisation of water : problems of table water, bottled mineral water and public water supply (to be set as oral and/or poster session) There is a big controversy by NGO's against the bottling and distribution of bottled mineral and table water by private companies. The following headlines illustrate this: "Is water a free and basic human right, or should all the water on the planet belong to major corporations and be treated as a product? Should the poor who cannot afford to pay these said corporations suffer from starvation due to their lack of financial wealth? According to the former CEO and now Chairman of the largest food product manufacturer in the world, corporations should own every drop of water on the planet — and you're not getting any unless you pay up." (http://naturalsociety.com/). The fact is that about 90 percent of the world's freshwater reserves currently are still protected under public law. But the problem arises that the distribution of pure and safe water to public community, the entire population is often not possible for a country in developing areas. The problem arises that the costs and infrastructure for the maintenance and repairing of municipal water supply at WHO standards are too high and/or are set at lower priorities at the political agenda of at country. This gap is now filled by the distribution of purified water or mineral and groundwater in bottles by the private industries. But this water has its price and is often not distributed to the population in less accessible areas and is not affordable to the poorest part of population. What is the role of hydrogeologists in this dilemma? To show possibilities and solutions how to overcome this problematic issue is the aim of this session by presenting case studies, new techniques and social distribution schemes. Conveners : Werner Balderer, [email protected], and Patrick Lachassagne (Water Institute by Evian, France, [email protected]) further interested hydrogeologists
TOPIC 5 -‐ GROUNDWATER, AND GLOBAL & CLIMATE CHANGE Session 5.01 -‐ Groundwater resources in a world facing climate change Groundwater is the world's most voluminous and best protected source of freshwater resource. It is used intensively supplying approximately half of the world’s drinking water supply and increasing proportion of that used for irrigation. The sustainability of groundwater use is therefore of rapidly growing importance to enhancing global food security. Groundwater also plays a vital role in sustaining surface flows and ecological function of groundwater-‐dependent ecosystems. Groundwater therefore needs to be managed wisely as outlined in major regulatory initiatives such as the European Water Framework Directive. This is, in itself, a challenge under changing environments, climates, land uses, and populations. This task is especially challenging in light of limited availability of data in many environments, both arid and humid. In this topic we invite contributions, which particularly report on research on the consequences of climate change for future management, protection, and sustainable use of groundwater, as well as studies on detection and/or attribution of changes in groundwater in response to climate change. Methodologies, strategies, case studies as well as quantitative techniques for dealing with uncertainty and limited data availability are of interest for this session. Studies focusing on the impact of the adaptation strategies are also sought. Furthermore, contributions describing case studies and new techniques are welcome. The session is open to contributions focusing on methodology or results, including societal and economic impacts, from local to regional to global scales. Conveners : Roland Barthel (University of Gothenburg, Sweden, [email protected]), Florence Habets (CNRS, Paris, France, [email protected]), Richard Taylor (UCL, London, UK, [email protected]) Session 5.02 -‐ Groundwater and global change
The current place of global environmental change across the world is unprecedented. These anthropogenic pressures (climate change, pumping, land use change, water diversion, urbanization, agricultural intensification, deforestation, mining, etc.) can strongly impact on aquifers systems by 1) altering water fluxes (e.g. recharge and discharge), 2) modifying surface and groundwater interactions, 3) leading to new hydrological processes, and 4) compromising the quality of groundwater resources.
This session addresses the key scientific challenges associated with linking global change to the evolution of groundwater quantity and quality over the past 60 years. Of particular interest are studies looking at separating the impact of climate change (that is mostly addressed in session 5.01) from the effects of other anthropogenic activities. We welcome contributions from a variety of approaches including analysis of long-‐term time series (groundwater levels and water quality records), and modelling studies of past and future changes. Convener : Marc Leblanc (Avignon University, France, marc.leblanc@univ-‐avignon.fr)
Session 5.03 -‐ CO2 storage in deep saline aquifers and potential impacts on shallow aquifers. CO2 Capture and Storage (CCS) is a key climate change mitigation technology. The underground storage of the CO2 captured at industrial facilities (production of gas, electricity, cement, steel...) is a powerful technology for reducing CO2 emissions and can even generate negative emissions when it is combined with CO2 capture at biomass plants or directly from the atmosphere. Globally, there are 15 large-‐scale CCS projects in operation, with a further seven under construction. Deep saline aquifers are the main storage reservoirs to enable worldwide deployment of the CCS technology. In the present session, we are seeking contributions about the use of deep saline aquifers for CO2 storage and about the prevention of potential impacts on potable groundwater resources in the overlying shallow aquifers that could result from leakage from a storage site or pressure perturbations. The session can also deal with other issues relating to CO2 storage in the underground. Conveners : Isabelle Czernichowski-‐Lauriol (BRGM/CO2GeoNet, France, [email protected]), and (to be confirmed): Stan Beaubien (Sapienza University of Roma/CO2GeoNet, Italy, [email protected]), Jean-‐Philippe Nicot (University of Texas at Austin, USA, [email protected]) Session 5.04 -‐ Emerging contaminants in the water cycle and risks to Groundwater Since the beginning of the 20th century, an increasing amount of compounds originating from human activities have been introduced in the water cycle, via diffuse or point-‐source pollution. Notably, massive amounts of man-‐made organic compounds have been released in the atmosphere, surface water or directly in the sol, during the last 50 years, including some very stable molecules. These compounds or their metabolites are now detected in all the water compartments, from rain to groundwaters, thanks to the recent development of very sensitive analytical instruments and methodologies. This session is aiming at understanding which are the relevant compounds to be investigated in groundwater and the relevant associated parts of the water cycle, using reliable methodologies from sampling to analysis, in order to: (1) Assess the vulnerability of the aquifer; (2) Identify the sources of diffuse or point-‐source pollutions that may affect the current or future quality of groundwater; (3) Understand the contamination timeframe. We encourage contribution covering all the aspects from the choice of molecules, particularly as regard their tracers’ properties, origin (including rainwater), to methodologies, occurrence data and predictive approaches. Convever : L. Di Gioia (Danone Research, France, Lodovico.di-‐[email protected]) (to be completed)
TOPIC 6 -‐ ACTIVE MANAGEMENT OF GROUNDWATER IN THE WATER CYCLE Session 6.01 -‐ Managed Aquifer Recharge With a trend of increasing water demand and a decreasing availability of water resources, an increasing number of aquifers are overexploited. It can have critical consequences, more especially in coastal areas. This issue will become critical once considering the potential impacts of global warming. One of the key option consists of artificially recharging the aquifers. It can stop/limit the deepening of the piezometric level. It can also be used for managing urban rainwater or as a complementary treatment prior to wastewater reuse. It can then be useful for protecting key environmental ecosystems linked with surface waters. If it provides true services, the Managed Aquifer Recharge (MAR) could be complex to operate in practice. Key issues have to be solved, technical, such as avoiding clogging, salinity rise, a decreasing groundwater quality, the appearance of hydraulic short circuits, but also regulatory, cultural, etc.. Once managing these issues, Managed Aquifer Recharge appears to be a really interesting tool for managing groundwater resources. In the present session, we are seeking contributions about the hydrogeologic and hydraulic aspects, the survey and evolution of dissolved salts and the microbial issues (more specifically involving wastewater or rainwater infiltration and reuse). Both theoretical and practical cases are encouraged. Moreover, we are also interested by contributions on the indirect impact of MAR on water resource management (for instance where it is linked with drinking water supply, irrigation, industrial or energy uses). Convener: Michel Lafforgue (Suez Consulting, France, [email protected]).
Session 6.02 -‐ Treated Waste water REUSE for groundwater recharge: addressing the challenge Water scarcity and the overexploitation of conventional water resources are two of the main drivers to treated wastewater (TWW) REUSE. TWW groundwater recharge projects are blooming in the world especially in coastal areas and in the Mediterranean area where increasing pressures on the resource cause deep depletion and high salinization impacts. TWW can either be directly reinjected (Korba in Tunisia) or indirectly through dedicated infiltration basins (Northern Gaza strip). This practice enables to restore groundwater in terms of quantity and quality, but also to limit salt intrusion and mitigate climate change impacts. TWW could then be pumped from the groundwater for indirect surface reuse like agricultural irrigation. Ground properties are used and considered as a way to improve TWW quality (Korba in Tunisia) but most of the time much attention is often paid to TWW quality (pathogens, salinity, etc.) prior to recharge to avoid groundwater contamination. In this session, we are seeking contributions about feedback from pilot-‐ of full-‐scale experience on the risks and benefits of such practices regarding regulatory, environmental, social and sanitary conditions both on the qualitative and quantitative sides. This session will also focus on methodologies (cost-‐benefits analysis, Life Cycle Analysis, environmental impact assessment…) and development of decision support tools to asses and design the TWW groundwater recharge as a success factor for the water circular economy. Convener : Nicolas CONDOM (PhD, Ecofilae -‐www.ecofilae.fr, France, [email protected])
Session 6.03 -‐ Innovative tools to improve understanding of groundwater recharge processes Improving the understanding of groundwater recharge and the ability to predict its sensibility to global change is crucial for a sustainable resource management. Several methods have been developed to investigate groundwater recharge, but it is highly variable in space and time, and large uncertainties remain on its quantification. This session aims at bringing together recent developments of the methods to quantify groundwater recharge at various spatial and temporal scales, as well as in various hydrogeological settings. We seek to gather contributions based on a variety of approaches, from geochemical or geophysical field investigations to integrated hydrogeological modeling. Conveners : Sophie Guillon (Mines ParisTech, sophie.guillon@mines-‐paristech.fr), Florent Barbecot (Université du Québec à Montréal, [email protected] ), Hervé Jourde (Hydrosciences, Montpellier, hjourde@univ-‐montp2.fr)
TOPIC 7 -‐ GROUNDWATER USES AND MANAGING GROUNDWATER USE CONFLICTS Session 7.01 -‐ Groundwater and Energy Resources Groundwater and energy resource development are connected in a variety of ways. Contamination of shallow groundwater resources by oil and gas development has been an ongoing issue, with public concern increasing in recent years with the advent of hydraulic fracturing. Similar concerns about contamination have also been associated with nuclear energy. Potential impacts to groundwater quality from long-‐term waste disposal by the energy sector have also created significant concerns. The availability of groundwater is also affected by energy resource developments, which are often significant users of water. This has created competition between the energy sector and other water users. Use of brackish and saline groundwater by the energy sector has been increasing to alleviate this competition. Finally, the energy content of groundwater itself is of interest. Geothermal energy development is increasing in many parts of the world and these developments can have important interactions with other subsurface developments and groundwater systems. In this session, the interplay of the energy resource development and groundwater will be examined from a variety of perspectives including conventional and unconventional oil and gas development, biofuels, geothermal energy and nuclear energy. Conveners : Grant Ferguson (University of Saskatchewan, [email protected]), Bridget Scanlon (Bureau of Economic Geology, The University of Texas at Austin University, [email protected]) and Philipp Blum (Karlsruhe Institute of Technology, [email protected]) Session 7.02 -‐ Urban Hydrogeology Urban groundwater is a resource under pressure, often subject to quantitative and qualitative deterioration. Urban land-‐use changes the water balance drastically and urban groundwater is threatened by overexploitation and contamination from a multitude of sources. More recently, urban groundwater has also become subject to geothermal use. This session encourages all contributions on urban groundwater use and management as well as on urban impacts on quantity and quality of groundwater and its receiving waters. Convener : Gudrun Massmann (Carl von Ossietzky Universität Oldenburg, Germany, gudrun.massmann@uni-‐oldenburg.de)
Session 7.03 -‐ Hydrogeological benefits and impacts of domestic on-‐site sanitation Infiltration of treated domestic waste waters instead of rejecting them to rivers downstream a centralized wastewater treatment plant (WTP) may be fostered as a way to recharge aquifers and reduce rivers pollution. Besides, most countries keep using on-‐site sanitation (OSS) to treat and reject waste waters in rural areas and moreover this decentralized management mode is promised to gain within peri-‐urban areas, mainly due to decreasing investment capacity of local authorities. However, the environmental impact of OSS needs to be assessed, particularly as regards groundwater contamination. Both applications, WTP and OSS, do challenge the potential of a plot of land for infiltration and clogging, and the ability of the vadose zone to filter / retain / degrade pollutants.
Thus, in this session will be addressed the transfer function through percolation tests or structural modeling of the vadose zone and its depurator potential for well-‐known contaminants (e.g. nitrogen, carbon, metals), emerging micro-‐pollutants (pesticides, pharmaceuticals, endocrine disruptors), as well as bacteria’s, through enzymatic activities, biofilm or adsorption measurements among others. The link with urban hydrogeology will be made through 1. scale relationship between OSS and WTP infiltration and 2. analogy with the infiltration of collected rainfall by the means of specific discharge devices (basin or trenches). It will be questioned to what extent the stakeholders do face a local or rather diffuse pollution, and propositions will be elaborated on how they can manage and regulate this use of the soils and aquifers. The case of individual sanitation is also an opportunity to account for the user’s perception of decentralized devices: is it a way to improve public policies in water management and resource protection? Convener : Olivier Fouché (Ecole des Ponts -‐ UPE -‐ AgroParisTech, France; [email protected]). Session 7.04 -‐ Groundwater and man-‐made underground works This session focusses on underground facilities such as tunnels, underground storages, underground research laboratories or any other type of underground facilities. The main topics are more especially the impact on groundwater and changes of hydrogeolocical conditions around and towards the facility, mitigation in case of excess impact and possible cases of using groundwater as an ally for the facility operation.
Convener : François Cabon (GEOSTOCK, Paris, France, [email protected]) Session 7.05 -‐ The Challenges for Transboundary aquifer management In 2016, the UN General Assembly is due to decide the fate of the UN International Law Commissions’ Draft Articles on the Law of Transboundary Aquifers following the repeated postponing the decision. The Draft Articles, in whose development the IAH took the scientific lead, represent arguably the most authoritative international legal instrument that specifically addresses the governance of aquifers. At the start of the SDG’s, it is becoming imperative to ensure that there is adequate regulation over transboundary aquifers, as their integrity and surrounding ecosystems are threatened by over exploitation, land-‐use changes and pollution. The science behind these drivers needs to be made more explicit and prominent. This session of the IAH Congress, in its 60th Anniversary year, calls for papers from the science, the law and social science fields, to come together and provide the background and the justification that could be submitted to the UN General Assembly in Nov 2016 on how the Draft Articles can be turned into an international instrument. Conveners : Shammy Puri (Chair IAH Commission on Transboundary Aquifer), Alice Aureli (Chief Groundwater Section, UNESCO-‐ISARM), Neno Kukuric (Director IGRAC), Karen Villholth (IWMI, S Africa), Gabriel Eckstein (Prof of Law, Texas A&M University)
Session 7.06 -‐ Groundwater protection and governance: examples of groundwater protection models , and the role of the private sector Groundwater plays a strategic role in our societies as it is often a prime source of water for communities, agriculture and industries. In a global context of growing water needs, resource use and rising pollution threats, groundwater governance and groundwater protection have to be strengthen. Depending on the regulatory framework, socio-‐economic, hydrogeological contexts, etc., stakeholders engagement models of groundwater protection can really, and must surely differ. This session is open to contributions presenting diverse models and cases studies on groundwater protection implementation, from developed and developing countries. In some areas, the private sector can have a key role to play to protect, quantitatively and qualitatively, groundwater resources, not only to secure their operations but also because tapping water from a non-‐protected aquifer can seriously impact their reputation. Several tools or methods have emerged during the last decade to help the private sector to drive and implement their water stewardship into their corporate organisation. The session is thus also open to contribution presenting the different tools and methods, comparing the different approach as well as case studies where private sector engagement has been predominant in groundwater protection initiatives. It also aims at comparing these tools/methods with thoses developed by other stakeholders (such as public water supply, agriculture, etc.), and favoring their improvement. Conveners : Heru Hendrayana (Gadjah Mada University, Indonesia, [email protected]), Olivier Beon (Danone Waters, France, [email protected])
TOPIC 8 -‐ PROGRESS IN CONCEPTUAL MODELS, TOOLS AND METHODS Session 8.01 -‐ Fiber-‐Optic Distributed Temperature Sensing as an innovative method in hydrogeology and geothermal energy. For several years, Fiber-‐Optic Distributed Temperature Sensing has been widely used in hydrogeology to characterize infiltration within the vadose zone, hyporheic flows, and groundwater discharge in lakes or towards the sea. In addition, this emerging tool has also been used to monitor temperature changes during hydraulic tests, geothermal tracer tests, and for monitoring oil recovery. In the present session, we are seeking contributions about the theory, application, and data analysis of Distributed Temperature Sensing applications in hydrogeology and geothermal energy. Such applications may be about the improvement of reservoir monitoring or the characterization of thermal and hydrological processes in the sub-‐surface. Conveners : Olivier Bour (University of Rennes 1, Olivier.Bour@univ-‐rennes1.fr), Victor Bense (Wageningen University, [email protected]) and John Selker (Oregon State University, [email protected]) Session 8.02 -‐ Groundwater Development and Protection in Coastal Environments with Complex Geological Structures Groundwater resources in coastal and insular contexts are often of high strategic importance but are threatened by natural processes (seawater intrusion, floods, tsunamis, subsidence, sea-‐level variations, climate changes, and land erosion), and anthropogenic activities (overpumping, drainage, land reclamation, urbanization, and contamination). This session aims at reviewing the latest advances in groundwater investigations, and management criteria in coastal and insular environments characterized by complex geological contexts such as volcanic, sedimentary, karstic, and hard rocks.
Topics of interest include: a. The use of advanced monitoring networks, b. The definition of hydro-‐geophysical, conceptual, and numerical modeling and model validation focused on Fresh-‐Salt-‐water interface, c. Management modeling of integrated water resources in the particular context of coastal areas, considering (1) local hydrogeological catchment characteristics, and (2) quantity and quality demands for different purposes, so as to grant a real sustainable economic development for present inhabitants and future generations.
Conveners : Alexandre Pryet (ENSEGID, Bordeaux, France [email protected]), Giovanni Barrocu (University of Cagliari [email protected] // [email protected])
Session 8.03 -‐ Geometrical structure and hydrogeological properties of Hard-‐Rock aquifers. Hard-‐rock aquifers (i.e. fractured granitic and metamorphic rocks) cover about 35% of the continental surface and constitute a valuable water resource, particularly for many developing and emerging countries. However, determining their geometrical structures as well as their hydrogeological properties (permeability, porosity, recharge…) still remains a challenge which makes difficult the evaluation of these resources and their sustainable management.
The topic of the present session seeks contributions about new methodologies, technologies, conceptual models or modelling techniques developed to improve the knowledge of these fractured aquifers. Expected applications both at borehole or watershed scales concern techniques for evaluating their properties, their geometries, tools supporting the groundwater management, etc.
Conveners : Benoît Dewandel (BRGM, France, [email protected]), Üwe Troeger (University of Berlin, Germany, uwe.troeger@tu-‐berlin.de) & John Sharp (USA, University of Texas, [email protected])
Session 8.04 -‐ Isotopic and residence time tracers. While isotopic and chemical tracers are known to be powerful tools to refine groundwater conceptual models and their management strategies, including protection actions, most of abstraction plan rely on the general knowledge of water masses flow. However, recent progress in analytical techniques and in use of isotopic and chemical tracers may provide a substantial support for identifying and modelling flow paths and transit time distributions in aquifers.
This session will focus on both recent development and particular case studies using isotopic and residence time tracers to investigate water flow and contaminant transport in aquifers. This comprise among other things the use of new tracer measurement technologies (e.g. relevance of continuous field monitoring using laser spectrometers), the application of innovative tracers and the development of new modeling strategies to derive the distributions of residence times.
Conveners : Florent Barbecot (Université du Québec à Montréal, Canada, [email protected] ), Przemysław Wachniew (AGH University of Science and Technology, Krakow, [email protected]), Luc Aquilina (Rennes I University, France, luc.aquilina@univ-‐rennes1.fr), Vincent Marc (UMR EMMAH, Avignon University, France, vincent.marc@univ-‐avignon.fr)
Session 8.05 -‐ Karstic aquifers Increasing stress on water resources due to increasing demand and decreasing groundwater recharge following climate change effects emphasized the need for alternative groundwater resources, among which karst aquifers play a major role. The latest results on the findings from karst groundwater research are increasingly studied and this session will provide the opportunity to present the state of the art on karst hydrogeology with an emphasis on the techniques and methodologies to enhance and manage the resources. Abstracts on the following topics are welcome: innovative methodologies (flow and quality monitoring, tracing experiments, temperature monitoring, hydrogeophysical techniques ...), interaction of groundwater and surface water flow , solute transport (fate and transport of contaminants, contaminants as tracers, sediment transport, etc), modelling techniques, water
management including active management. Submissions on case studies especially on Mediterranean karst systems are welcome. Conveners: Jean Christophe Maréchal (BRGM, France, [email protected]), B. Mahler (University of Texas Jackson School of Geosciences and USGS, USA, [email protected]), Martin Sauter (Göttingen University, Germany, [email protected]‐Goettingen.de) Session 8.06 -‐ Verification of conceptual patterns and expected natural effects of regional groundwater flow by interpretation of relevant field observations The session's objective is to encourage comparisons between theoretical predictions of flow patterns and their natural effects in a given study area, on one hand, and measurable parameters of their real-‐life flow-‐fields and empirically observed manifestations of interaction between moving groundwater and its environment in the same area, on the other. Such comparisons, if used iteratively, may be developed into a novel method of groundwater flow-‐system evaluation. Papers are welcome from any specialty dealing with regional groundwater flow and groundwater dependent processes and phenomena, such as: geothermics, soil salinization, wetland hydrology, surface and subsurface ecology, hydrochemistry, slope stability, petroleum and metallic mineral accumulation, and so on. Call for the student competition on Regional groundwater flow Conveners: Judit Mádl-‐Szőnyi (Eötvös Loránd University, Hungary, [email protected] and chairs who will be invited), and organized by the Regional Groundwater Flow Commission of IAH (Honorary chair: Prof. Joe Tóth) Session 8.07 -‐ Hydrogeophysics: innovative non-‐invasive technologies for groundwater resources exploitation and management Geophysical data from ground-‐based, borehole logging and remote sensing measurements are being increasingly used to provide qualitative and quantitative information about hydrogeological parameters and processes. Groundwater resources structure, hydrodynamic functioning, contaminant transport, recharge monitoring, surface and groundwater interactions, ecological and climate investigations are some of the hydrological topics where hydrogeophysics actively contributes and that will be discussed during this session. The “hydrogeophysics” session will focus on both recent methodological developments and case studies. Abstracts on the following topics are welcome: integrative methodologies; relevant hydrogeophysical case studies; recent progress in equipment (ground based, logging, airborne, satellite) and in methods, measuring techniques and inversion schemes; hydrogeophysical monitoring; biogeophysics; Conveners: Konstantinos Chalikakis (UMR EMMAH, Avignon University, France, konstantinos.chalikakis@univ-‐avignon.fr), Roger Guerin (UMR METIS, UPMC Paris-‐6 University, France, [email protected]), Lee Slater (Rutgers University Newark, USA, [email protected])
Session 8.08 -‐ Mineral and Thermal water : an indicator of deep processes and source of economically valuable minerals Mineral and thermal waters are groundwaters which are mainly characterised by i) a special chemical composition, ii) a unique origin, iii) high temperature in the case of thermal water, and iv) high total mineralizations in the case of saline waters and brines. Geochemical and isotopic studies of these waters shows that they can be an important indicators of deep processes taking place in the Earth’s crust nowadays or in geological past. Active tectonic processes as earthquakes, stress accumulation in the deep underground upwelling of magma chambers are influencing deep fluids which induce changes in groundwater composition. The continuous monitoring of the chemical and physical composition as well as periodic measurements on samples of mineral and thermal water provides information of the occurrence of such processes. The application of these information’s for the discovery of ongoing processes as leading to earthquakes, volcanic eruptions, gas emissions, etc. as also the interpretation of the processes and effects itself is the one of the main of this session. On the other hand, deep geological processes ongoing nowadays or taken place in geological past usually induce extensive water rock-‐interaction which considerably influence on the groundwater chemical and isotopic composition, their origin and mineralization. Mining activities, oil and gas exploration and exploitation, the use of geothermal energy, are examples for human activities of growing up economic relevance that come into touch with highly mineralized waters and brines. In many cases the specific chemical composition of such waters allows to recover many valuable minerals or elements, including critical ones. In this session presentations and posters are also welcome which shows the examples of mineral water utilization as a resource for valuable minerals, technology which are used to this purposes and future prospects in this field. Conveners: Werner Balderer ([email protected], [email protected]) and further interested scientists (potentially to be invited: Dr. Friedemann Freund, [email protected]) Session 8.09 -‐ A focus on groundwater ecology Saturated underground layers, including all types of groundwater bodies from shallow to deep subsurface environments (shallow groundwater interacting with surface soil or water, sedimentary and karstic systems, deep water systems), hosts a significant part of prokaryotic biomass on earth (up to 40%), and numerous eukaryote organisms. They play a key role in the cycling of many elements, particularly at the interface between water and solid mineral matter. They modify the kinetics of chemical reactions, directly or indirectly, inducing dissolution or precipitation of minerals or natural attenuation of organic pollutants. By driving the cycles of organic matter and nutrients, groundwater organisms also contribute to carbon sequestration or conversely to the release of greenhouse gases. They form a non-‐negligible part of the set of mechanisms governing hydrogeological evolution of groundwater and associated ecosystem services. Therefore, these organisms reflect, contribute and respond to the quality of the underground environments and the two-‐way interactions of organic pollutants/metals with groundwater microbial communities are potentially important vector of Global Change. Improvement in knowledge about groundwater organism biodiversity, activity, distribution and
evolution underlies our ability to preserve the quality of pristine groundwater bodies, to remediate polluted or disturbed zones, and to rationally exploit groundwater environments. The topic of the present session seeks contributions about ecology of groundwater bodies. Targeted topics include i) assessment of biodiversity (taxonomic and functional), activity and ecosystem functioning ii) contribution of the groundwater organisms in biogeochemical cycles, iii) identification and assessment of biological processes involved in geochemical quality e.g. bio-‐transformation of pollutants, iv) development and application of bio-‐indicator tools to assess the possibility to consider ecological perspectives in groundwater policies. Conveners: Aourell Mauffret (BRGM, France, [email protected]), Christophe Douady (University of Lyon, France, christophe.douady@univ-‐lyon1.fr) Session 8.10 -‐ Recent developments in groundwater modeling and mathematical tools in Hydrogeology Groundwater modeling remains the standard approach to integrate the numerous types of data used for characterizing aquifers. It is also emerging as the approach to synthesize institutional memory on the recent history of the aquifer and to derive management policies. In addition, modelling is a standard tool for addressing emerging challenges, such as CO2 storage, fracking, enhanced geothermics. Proper groundwater modeling often requires reasonable assumptions on the governing parameters and their spatial distribution and variability. Presentations are welcome on model concepts, numerical methods, geostatistical approaches and actual applications. Conveners : Jesus Carrera Ramirez (Instituto de Diagnóstico Ambiental y Estudios del Agua, Consejo Superior de Investigaciones Científicas, Spain, [email protected]), Maria-‐Th. Schafmeister (Applied Geology, University Greifswald, Germany, schaf.hydrogeology@uni-‐greifswald.de) Session 8.11 -‐ Hydrogeodesy: new surface tools to characterize and monitor active and managed groundwater systems Recent development of ground-‐based and satellite gravimetry (GRACE and ground gravimeter) and deformation (InSAR, tiltmeter and strainmeters) have profoundly changed our vision of dynamic processes in groundwater systems on a wide range of spatial scales. Gravity provide access to a unique observation to constrain aquifer mass balance while deformation offers an image of pressure changes – powering fluid flow – applied on a reservoir. Both non-‐invasive tools are growing in popularity considering their high potential to remotely image aquifer structure and hydro-‐dynamical parameters, assess the impact of heterogeneity, improve model predictability skills and evaluate water management policies and their impact on groundwater sustainability. The hydrogeodesy session will focus on instrumental and methodological developments, as well as case studies on the different applications highlighted. Conveners: Laurent Longuevergne (Géosciences Rennes, Rennes 1 University, France, laurent.longuevergne@univ-‐rennes1.fr), Di Long (Tsinghua University, Beijing, China, [email protected]), Cédric Champollion (Géosciences Montpellier, Montpellier 2 University, France, cedric.champollion@univ-‐montp2.fr)
