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Heekyung Park - One of the best experts on this subject based on the ideXlab platform.
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Investigating the Vulnerability of Dry-Season Water Supplies to Climate Change: A Case Study of the Gwangdong Reservoir Drought Management System, Korea
Water Resources Management, 2012Co-Authors: Donghoon Cha, Sangeun Lee, Heekyung ParkAbstract:This study aims to improve the method to measure the vulnerability of water supply that arises mainly due to water scarcity in the dry season, and a situation that is expected to be exacerbated by climate change. The authors discuss the usefulness of the Gwangdong Reservoir Drought Management Model (GRDM2), which was developed in a previous study, and built on the basis of the adaptation mechanism, specifying the relationship between external disturbances (or future scenarios), system components pertaining to adaptation capacity, and vulnerability. The authors derive a total of 48 future scenarios, which consist of combinations of 6 future inflow scenarios and 8 future water requirement scenarios, of the Gwangdong reservoir Drought Management system. They then estimate the damage cost due to water scarcity in the dry season until the 2050s after feeding data in each scenario into GRDM2. The simulation reveals that extensive damage due to water scarcity may occur from the 2020s, and catastrophes, with damage four times greater than in the 2009 water scarcity accident, may occur in the 2050s. Assembling those results together, the authors conclude that GRDM2 is useful to measure the magnitude of climate change vulnerability, focusing on damage caused by water scarcity during the dry season. It is finally stated that to well prepare for climate change, engineers should investigate a suitable combination of available solutions, and at the same time perceive the threats that are attributed to high uncertainty. Copyright Springer Science+Business Media B.V. 2012
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Lessons from water scarcity of the 2008–2009 Gwangdong reservoir: needs to address Drought Management with the adaptiveness concept
Aquatic Sciences, 2012Co-Authors: Suhaimi Abdul-talib, Heekyung ParkAbstract:Numerous publications document increasing consensus in the scientific community that climate change will increase the severity and frequency of Drought. However, constructing large infrastructures is often viewed as an unreliable and inefficient option in dealing with the problem of Drought, owing to unpredictability of climate change. This study aims at illustratively presenting that there is much room to improve Drought Management without resorting solely to infrastructure options. The adaptiveness concept is first explained to examine the reasons of failure in Drought Management and appropriate options from the viewpoint of a systems approach. Thereafter, a Korean water scarcity case is defined as the system dynamics model. The model is implemented to include movement of water via the reservoir and water supply facilities, the operating rules of the reservoir, and the relation between water scarcity and customer stress. Simulation results demonstrate that adaptiveness of Drought Management was low because of untimely or limited options of the reservoir operator. They also show that most customer stress could be largely mitigated by two options chosen from the adaptiveness concept. It is finally concluded that Drought Management needs to be addressed with consideration of the adaptiveness concept before deciding solely on expansion of infrastructure upon facing challenges due to climate change.
Carlos Dionisio Perez Blanco - One of the best experts on this subject based on the ideXlab platform.
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Drought Management plans and water availability in agriculture: A risk assessment model for a Southern European basin
SSRN Electronic Journal, 2014Co-Authors: Carlos Dionisio Perez Blanco, Carlos Mario Gomez GomezAbstract:The Drought Management Plans (DMPs) are a regulatory instrument that establishes priorities among the different water uses and defines more stringent constraints to access to publicly provided water during Droughts, especially for non-priority uses such as agriculture. These plans have recently become widespread across EU southern basins. Shockingly, in some of these basins the plans were approved without an assessment of the potential impacts that they may have over the economic activities exposed to water restrictions. This paper develops a stochastic methodology to estimate the expected water availability in agriculture that results from the decision rules of the recently approved DMPs. The methodology is applied to the particular case of the Guadalquivir River Basin in southern Spain. Results show that if the DMPs are successfully enforced, available water will satisfy in average 62.2% of the annual demand. This is much lower than the minimum water access reliability of 90% that the Spanish law has assured to irrigators so far.
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do Drought Management plans reduce Drought risk a risk assessment model for a mediterranean river basin
Ecological Economics, 2012Co-Authors: Carlos Mario Gomez Gomez, Carlos Dionisio Perez BlancoAbstract:Groundwater resources are traditionally overexploited in arid and Drought-prone regions with profitable irrigated agriculture, and the depletion of this groundwater results from a combination of the physical scarcity of surface sources and the lack of effective control of use rights on the part of water authorities. This is the case in the Segura River Basin of southern Spain. As a result, Drought risks and structural deficits have steadily increased over the last 50years. The Drought Management Plan recently approved by the Segura River Basin Authority aims to enforce more stringent water supply restrictions from surface sources, but the plan does not include any explicit policy to handle illegal groundwater abstraction. By using a stochastic risk assessment model, this paper shows that the implementation of the Drought plan will increase the expected irrigation deficits of surface water and can, paradoxically, lead to higher Drought and aquifer depletion risks than the traditional rules that the new plan replaces.
M. A. Mariño - One of the best experts on this subject based on the ideXlab platform.
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Discussion of “Investigating the Vulnerability of dry-Season Water Supplies to Climate Change: A Case Study of the Gwangdong Reservoir Drought Management System, Korea” by Donghoon Cha; Sangeun Lee; and Heekyung Park
Water Resources Management, 2013Co-Authors: O. Bozorg Haddad, M. Jahandideh-tehrani, M. A. MariñoAbstract:Cha et al. (Water Resources Management, 26(18):4183–4201 2012 ) improved the method used to measure the vulnerability of a reservoir water supply that arises due to water scarcity in a dry season. Water supply vulnerability is expected to increase due to climate change. The authors showed that the Gwangdong Reservoir Drought Management Model (GRDM2), developed in a previous study and based on the adaptation mechanism, is useful to estimate the vulnerability of water supplies. The authors assumed 48 future scenarios, consisting of a combination of 6 future inflow scenarios and 8 future water requirement scenarios, of the Gwangdong reservoir Drought Management system. They computed damage cost of water scarcity in dry seasons until the 2050s. Simulation results showed that severe damage may take place from the 2020s and damage four times greater than in the 2009 water scarcity event may occur in the 2050s. As a result, GRDM2 was reported to be useful to measure the magnitude of climate change vulnerability, concentrating on damage of water scarcity in a dry season.
Carlos Mario Gomez Gomez - One of the best experts on this subject based on the ideXlab platform.
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Drought Management plans and water availability in agriculture: A risk assessment model for a Southern European basin
SSRN Electronic Journal, 2014Co-Authors: Carlos Dionisio Perez Blanco, Carlos Mario Gomez GomezAbstract:The Drought Management Plans (DMPs) are a regulatory instrument that establishes priorities among the different water uses and defines more stringent constraints to access to publicly provided water during Droughts, especially for non-priority uses such as agriculture. These plans have recently become widespread across EU southern basins. Shockingly, in some of these basins the plans were approved without an assessment of the potential impacts that they may have over the economic activities exposed to water restrictions. This paper develops a stochastic methodology to estimate the expected water availability in agriculture that results from the decision rules of the recently approved DMPs. The methodology is applied to the particular case of the Guadalquivir River Basin in southern Spain. Results show that if the DMPs are successfully enforced, available water will satisfy in average 62.2% of the annual demand. This is much lower than the minimum water access reliability of 90% that the Spanish law has assured to irrigators so far.
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do Drought Management plans reduce Drought risk a risk assessment model for a mediterranean river basin
Ecological Economics, 2012Co-Authors: Carlos Mario Gomez Gomez, Carlos Dionisio Perez BlancoAbstract:Groundwater resources are traditionally overexploited in arid and Drought-prone regions with profitable irrigated agriculture, and the depletion of this groundwater results from a combination of the physical scarcity of surface sources and the lack of effective control of use rights on the part of water authorities. This is the case in the Segura River Basin of southern Spain. As a result, Drought risks and structural deficits have steadily increased over the last 50years. The Drought Management Plan recently approved by the Segura River Basin Authority aims to enforce more stringent water supply restrictions from surface sources, but the plan does not include any explicit policy to handle illegal groundwater abstraction. By using a stochastic risk assessment model, this paper shows that the implementation of the Drought plan will increase the expected irrigation deficits of surface water and can, paradoxically, lead to higher Drought and aquifer depletion risks than the traditional rules that the new plan replaces.
Ana Iglesias - One of the best experts on this subject based on the ideXlab platform.
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GUIDELINES FOR Drought Management
2014Co-Authors: Ana IglesiasAbstract:Abstract: The experiences in the development and implementation of Drought and water scarcity Management plans highlight the success and challenges of coping with Drought for societies with different vulnerabilities and emphasize risk-based Drought Management as a critical approach to mitigate the impacts associated to Drought-induced water shortages.Based on these experiences and the current legislation,Management,technology and methods for evaluating risk,the Guidelines synthesise Drought Management operational actions that link science and policy and that can be applied to other regions.The Guidelines respond to the growing issue of Drought preparedness planning,monitoring,and mitigation which has worldwide application.The methodologies and lessons learned are focused on a specific,Drought-prone region so the applications have more significance.The Mediterranean region exemplifies many other Drought prone regions with rapidly expanding populations that are placing increased pressure on already limited water supplies.The Mediterranean region is one that has been identified as experiences significant changes in climate as a result of climate change.Preparing for climatic extremes (i.e.,managing climate variability) is an important first step in preparing for climate change. The Guidelines are the result of the research carried out within the framework of the MEDA-Water project MEDROPLAN that analyses Drought and water scarcity Management in Mediterranean countries promoting a risk based preparedness and mitigation approach.The purpose of the Guidelines is to provide countries with a framework for effective and systematic approach to prevent and/or minimize the impacts of Drought on people.
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coping with Drought risk in agriculture and water supply systems Drought Management and policy development in the mediterranean
2009Co-Authors: Ana Iglesias, Luis Garrote, Antonino CancelliereAbstract:Foreword Part I Challenges to Drought Management in Mediterranean countries 1. Drought Monitoring as a Component of Drought Preparedness Planning Donald A. Wilhite 2. Soft law principles for improving Drought Management in Mediterranean countries Esther Lopez-Barrero and Ana Iglesias 3. A checklist for Drought policy development Nicos X. Tsiourtis 4. An environmental focus on Drought: the Water Framework Directive Abel La Calle Marcos 5. Guidelines to develop Drought Management plans Ana Iglesias, Luis Garrote and Antonino Cancelliere Part II Methods and approaches for Drought Management 6. Drought characterisation in the Mediterranean George Tsakiris and Dialekti Pangalou 7. A Paradigm for Applying Risk and Hazard Concepts in Proactive Planning George Tsakiris 8. Assessment of Drought risk in water supply systems Antonino Cancelliere, Vincenzo Nicolosi and Giuseppe Rossi 9. Mathematical models for reservoir operation in Tunisia Mohammed Hedi Louati and Fethi Lebdi 10. Risk Management instruments supporting Drought planning and policy Alberto Garrido, Almudena Gomez-Ramos 11. Methods for evaluating social vulnerability to Drought Ana Iglesias, Marta Moneo and Sonia Quiroga 12. Methods for social participation and conflict resolution Ignacio Celaya, Antonio Rodriguez Perea and Xavi Carbonell Part III Learning from the Case studies 13. Development of Drought Management plans in Spain Luis Garrote, Ana Iglesias and Francisco Flores 14. Characterizing Drought risk in a Sicilian river basin Giuseppe Rossi, Brunella Bonaccorso, Vincenzo Nicolosi and Antonino Cancelliere 15. The role of groundwater during Drought Maria Casado, Francisco Flores and Roberto Gil 16. Drought severity thresholds and Drought Management in Greece Dialekti Pangalou, Dimitris Tigkas, Harris Vangelis, George Tsakiris and Aikaterini Nanou-Giannarou 17. Using and testing Drought indicators Luis Garcia, Alejandro Carrasco and Juan Carlos Ibanez 18. Drought Management in the urban water supply system of Canal de Isabel II, Spain Francisco Cubillo 19. The role of non-conventional and lower quality water for the satisfaction of the domestic needs in Drought Management plans Nicos X. Tsiourtis Annex 1. Glossary of terms and concepts
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Linking Drought Indicators to Policy Actions in the Tagus Basin Drought Management Plan
Water Resources Management, 2006Co-Authors: Luis Garrote, Francisco Martín-carrasco, Francisco Flores-montoya, Ana IglesiasAbstract:One crucial aspect of Drought Management plans is to establish a link between basin Drought state and Management actions. Basin state is described by a Drought indicator system that includes variables like precipitation, streamflow, reservoir inflow, reservoir storage and groundwater piezometric levels. Basin policy consists on a catalogue of Management actions, ranging from enforcing demand reduction strategies to establishing priority of users to allocate scarce water or approving emergency works. In this paper, the methodology applied in the Tagus Basin Drought Management Plan to link operational Drought indicators to policy actions in regulated water supply systems is presented. The methodology is based on the evaluation of the probability of not being able to satisfy system demands for a given time horizon. A simplified model of every water resources system in the basin was built to evaluate the threshold of reservoir volume that is required to overcome the Drought situation without deficit. For each reservoir level, a set of policy actions is proposed with the goal of guaranteeing essential demands during Drought conditions. The methodology was validated with a simulation of system behavior for 60 years of historic streamflow series, finding acceptable results in most systems.
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Development of Drought Management Plans in Spain
Coping with Drought Risk in Agriculture and Water Supply Systems, 1Co-Authors: Luis Garrote, Ana Iglesias, Francisco FloresAbstract:This chapter presents the process of development of Drought Management plans in Spain. The Law of the National Hydrologic Plan,in 2001, included the obligation for all Basin Authorities to develop Special Drought Management Plans. The process was finished in 2007, with the approval of the Plans for Basin Authorities depending on the central government. The methodology applied for the technical analyses carried out is presented, together with a description of the Drought Management actions included in the Plans.
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Soft Law Principles for Improving Drought Management in Mediterranean Countries
Coping with Drought Risk in Agriculture and Water Supply Systems, 1Co-Authors: Esther López-barrero, Ana IglesiasAbstract:This chapter presents an analysis of the process of transformation of international initiatives for Drought Management into real regulations at the national and international levels, revising the current situation of legal and institutional systems dealing with Drought Management in the Mediterranean basin: Cyprus, Greece, Italy, Morocco, Spain and Tunisia. Based on the existence of such documents and according to the analysis of the institutional and legislative frameworks of the selected countries, this chapter proposes a further step in the development of new preventive and reactive policies in the Mediterranean area through the creation of a uniform principle code for Drought Management in the Mediterranean area. The proposed code would incorporate all the regional and international agreements dealing with Drought Management under the legislative figure of a soft law. The selection of this legislative figure is the next logical step in the evolution of legislation development aiming at the adequate Management of Drought in the Mediterranean area, just as described in this chapter.
