Article
Engineering, Civil
Luis Garrote, Alfredo Granados, Mike Spiliotis, Francisco Martin-Carrasco
Summary: This paper proposes a methodological proposal for developing an adaptive decision support system for reservoir management. The system utilizes an optimization model to determine operating rules based on reservoir state and streamflow forecast. By applying the proposed methodology to a specific reservoir system, it is found that adaptive rules lead to better operating results, especially with reliable streamflow forecast methods.
WATER RESOURCES MANAGEMENT
(2023)
Article
Environmental Sciences
Martha E. Mather, John M. Dettmers
Summary: Connecting datasets from different projects and linking them to decisions helps environmental professionals adapt their decision-making process and advance broader natural resource conservation goals.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Business, Finance
Paul M. Guest
Summary: The study finds that net worth drives hedging, but the author identifies discrepancies including the relationship between net worth and hedging is related to institution size, the inconsistent effects of house price declines on net worth, and the treatment effects on net worth and hedging not increasing with real estate exposure.
JOURNAL OF FINANCE
(2021)
Article
Multidisciplinary Sciences
Scott Jasechko, Debra Perrone
Summary: Groundwater wells supply water to billions of people, but millions of wells are at risk of running dry if groundwater levels decline by only a few meters. Newer wells are not being constructed deeper than older wells in some places with significant groundwater level declines, suggesting that they are equally likely to run dry if groundwater levels continue to decline.
Article
Green & Sustainable Science & Technology
Hao Liu, Weilun Huang
Summary: This study examines the relationship between sustainable financing and financial risk management of Chinese financial institutions. The results show that sustainable financing has a negative impact on the financial risk management of banks, while financial risk management has a positive impact on sustainable financing. The impact may vary depending on the type and ownership structure of the banks.
Article
Business, Finance
Daniel Borer, Devmali Perera, Fitriya Fauzi, Trinh Nguyen Chau
Summary: Since their emergence in the late 1980s, the Value at Risk models have become the global standard in risk management and forecasting. However, concerns have been raised about their effectiveness in managing risk during global financial crises and some attribute financial contagion to Value at Risk practices. In this study, a new measure called Value at Risk elasticity is proposed and it proves to be effective in predicting asset losses during global crises. Based on the findings, including Value at Risk elasticity as an index is recommended for better risk management in portfolios.
INTERNATIONAL REVIEW OF FINANCIAL ANALYSIS
(2023)
Article
Business
Dekui Jia, Ruihai Li, Shibo Bian, Christopher Gan
Summary: Financial planning ability and risk perception have significant effects on household portfolio choice, with households possessing stronger financial planning ability more likely to invest in financial markets and hold risky assets. Higher risk perception leads to increased market participation and holding of risky assets, while financial literacy has an insignificant effect on investment earnings compared to financial planning ability.
EMERGING MARKETS FINANCE AND TRADE
(2021)
Article
Environmental Sciences
Chris Seijger
Summary: Climate change, environmental awareness, and food security are new priorities societies pursue. Agricultural water management needs reform to accommodate these priorities. An analytical framework is introduced to link societal shifts to actual reform in agricultural water management and assess the extent of change.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Dieter Gramlich, Thomas Walker
Summary: Climate change has worsened water risk events, posing a threat to water security for societies and ecosystems. Existing water risk models primarily focus on geophysical and business-related impacts, neglecting the monetary aspects of water-related challenges and opportunities. This study aims to bridge this gap by exploring objectives and directions for modeling financial water risk. By recognizing the interplay between climate and water, as well as the systemic nature of water risk, this study advocates for forward-looking, diversification-based, and mitigation-adjusted modeling approaches.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Environmental Sciences
Sebastian Seebauer, Thomas Thaler, Susanne Hanger-Kopp, Thomas Schinko
Summary: Path dependency occurs when a contingent event predetermines further steps and self-reinforcing mechanisms lock-in sub-optimal trajectory. This concept is often mentioned but lacks proper definition and operationalization. To empirically study this, the paper examines the elements of path dependency in flood risk management (FRM) over four decades in Austria's alpine mountain regions. The findings reveal that FRM governance plays a crucial role in determining path dependency, which manifests in both technical structures and incumbent actor coalitions. Recommendations are made to overcome path dependency in FRM governance.
REGIONAL ENVIRONMENTAL CHANGE
(2023)
Article
Green & Sustainable Science & Technology
Haibei Chen, Xianglian Zhao
Summary: This study explores the application of intelligence service in green financial risk management, suggesting that it helps protect the interests of stakeholders and promote the development of green finance. The study finds significant differences in the intelligence service elements in different regions and proposes measures to enhance the effectiveness of intelligence service.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Urban Studies
Krystyna Solarek, Artur Pudelko, Krzysztof Mierzwicki, Katarzyna Solarek, Zbigniew Bartosik, Adam Pyjor
Summary: The need for integrated water management is becoming more apparent due to climate changes. Our study proposes using the research by design method to solve water and spatial problems in the Kampinos National Park and its surroundings in Poland. This method can serve as an advanced planning tool for complex water management issues.
Article
Environmental Sciences
Jason A. Thomann, Adrian D. Werner, Dylan J. Irvine
Summary: Adaptive management (AM) is a method that uses targeted monitoring and structured and iterative integration of new knowledge to improve future management practices. This study provides preliminary guidance on adaptive groundwater management (AGM) by addressing the challenges of managing groundwater-affecting activities and identifying key factors such as the severity and permanence of groundwater impacts and the level of uncertainty in groundwater system responses. Passive AGM strategies meet minimum thresholds, while active strategies focus on quantifying and reducing uncertainty.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Review
Engineering, Industrial
Isaac Akomea-Frimpong, Xiaohua Jin, Robert Osei-Kyei
Summary: This study systematically reviewed research on financial risk management of PPP projects from 1995 to 2019, highlighting key financial risks such as high-interest charges, increased construction costs, and market risks. The findings provide valuable insights for project managers to enhance the financial success of PPP projects.
ENGINEERING CONSTRUCTION AND ARCHITECTURAL MANAGEMENT
(2021)
Review
Environmental Sciences
Vitor Vinagre, Teresa Fidelis, Ana Luis
Summary: Different dynamics of climate change, population growth, and urbanisation present challenges to water service providers and urban planners. Sustainable urban water management (SUWM) has been recognized as a way to address these challenges by integrating the urban water cycle with its environmental, economic, and social sustainability dimensions. This article reviews recent research on SUWM and examines how the scientific community has addressed the new challenges brought by climate change. The findings highlight the need for technical and economic evaluation of SUWM systems, the consideration of water scarcity from both the supply and demand perspectives, and the integration of new water sources, like reuse, with city planning in the context of climate change. However, the article also notes a lack of attention to collaboration strategies.
Article
Engineering, Civil
Keyvan Malek, Patrick Reed, Harrison Zeff, Andrew Hamilton, Melissa Wrzesien, Natan Holtzman, Scott Steinschneider, Jonathan Herman, Tamlin Pavelsky
Summary: This study demonstrates the significant impact that even modest projection errors can have on water resource assessments in California's irrigation districts. Errors in land-surface models (LSMs) projections of flood and drought extremes are found to be interactive across timescales and can be amplified when modeling infrastructure systems. Common strategies for reducing errors in deterministic LSM projections can distort projections of climate vulnerabilities and misrepresent their financial consequences.
JOURNAL OF WATER RESOURCES PLANNING AND MANAGEMENT
(2022)
Article
Meteorology & Atmospheric Sciences
Rohini S. Gupta, Scott Steinschneider, Patrick M. Reed
Summary: This study proposes a novel approach to reconstruct the frequency of regional weather regimes in the Western US based on tree-ring data. The reconstructed weather regimes show significant variability and are consistent with previous findings on megadroughts and pluvials. This study provides important insights into the natural atmospheric variability that can impact Western US weather.
Article
Engineering, Civil
Jose M. Rodriguez-Flores, Jorge A. Valero Fandino, Spencer A. Cole, Keyvan Malek, Tina Karimi, Harrison B. Zeff, Patrick M. Reed, Alvar Escriva-Bou, Josue Medellin-Azuara
Summary: This study evaluates the impact of groundwater pumping restrictions and crop prices, yields, surface water prices, electricity prices, and uncertainties on economic and groundwater performance metrics. The results show high sensitivity of performance metrics to prices and yields of perennial tree crops, especially during dry years.
WATER RESOURCES MANAGEMENT
(2022)
Article
Engineering, Civil
David E. Gorelick, David F. Gold, Patrick M. Reed, Gregory W. Characklis
Article
Engineering, Civil
Antonia Hadjimichael, Jim Yoon, Patrick Reed, Nathalie Voisin, Wenwei Xu
Summary: Efforts in developing and simulating water resources models have grown rapidly in recent years to aid in evaluating and planning for water scarcity and allocation. This study examines two representative models from different communities to assess their consistency in evaluating water scarcity vulnerabilities. Results show that the regional-scale model underestimates the variability in vulnerabilities at a smaller scale, while the basin-scale water systems model suggests a larger variance of scarcity due to its more detailed accounting of local water allocation infrastructure and institutional processes. This comparison highlights the limitations of large-scale studies and the role of basin-scale models in informing water allocation and shortage strategies when used in conjunction with larger-scale hydrological modeling studies.
JOURNAL OF WATER RESOURCES PLANNING AND MANAGEMENT
(2023)
Article
Environmental Sciences
Scott Steinschneider, Jonathan D. Herman, John Kucharski, Marriah Abellera, Peter Ruggiero
Summary: Climate vulnerability assessments rely on imperfect water infrastructure system models to predict performance metrics under future scenarios. A method combining time series error models with Sobol sensitivity analysis is developed to determine whether uncertainties in output metrics come from the climate ensemble or the systems model. The results show that the reduced complexity systems model is sufficiently accurate for vulnerability assessments, and that climate uncertainties are dominated by the choice of general circulation model and its interaction with the representative concentration pathway (RCP).
WATER RESOURCES RESEARCH
(2023)
Article
Engineering, Civil
David E. E. Gorelick, David F. F. Gold, Tirusew Asefa, Sandro Svrdlin, Hui Wang, Nisai Wanakule, Patrick M. M. Reed, Gregory W. W. Characklis
Summary: Water managers need to balance investment in infrastructure upgrades for reliable water supply and affordable water rates. However, few studies have quantified the financial benchmarks of water supply system adaptation. This study introduces a modeling framework that couples adaptive water supply planning with financial modeling to track utility budgetary decision making in response to infrastructure expansion and water demand growth. Through evaluation of infrastructure planning for Tampa Bay Water, the study showcases the financial implications of infrastructure decisions and demand growth on water rates.
JOURNAL OF WATER RESOURCES PLANNING AND MANAGEMENT
(2023)
Article
Meteorology & Atmospheric Sciences
Hongxiang Yan, Ning Sun, Hisham Eldardiry, Travis B. Thurber, Patrick M. Reed, Keyvan Malek, Rohini Gupta, Daniel Kennedy, Sean C. Swenson, Zhangshuan Hou, Yanyan Cheng, Jennie S. Rice
Summary: In this study, the benchmarking of CLM5 streamflow predictions using default hydrologic parameters was conducted for 464 headwater basins in the conterminous United States (CONUS). The results revealed relatively poor streamflow prediction skill of CLM5 in arid Southwest and Central U.S. regions. The impacts of hydrologic parameter uncertainty on CLM5 streamflow predictions vary in complex ways across U.S. regions, timescales, and flow regimes.
JOURNAL OF ADVANCES IN MODELING EARTH SYSTEMS
(2023)
Article
Multidisciplinary Sciences
Hongxiang Yan, Ning Sun, Hisham Eldardiry, Travis B. Thurber, Patrick M. Reed, Keyvan Malek, Rohini Gupta, Daniel Kennedy, Sean C. Swenson, Linying Wang, Dan Li, Chris R. Vernon, Casey D. Burleyson, Jennie S. Rice
Summary: We conducted a comprehensive hydrological parameter uncertainty characterization of CLM5 over the hydroclimatic gradients of the conterminous United States using five meteorological datasets. The key datasets produced from this experiment include benchmark data of CLM5 default hydrological performance, parameter sensitivities for 28 hydrological metrics, and large-ensemble outputs for CLM5 hydrological predictions. These datasets will assist CLM5 calibration, support evaluations of drought and flood vulnerabilities, and help identify conditions where parametric uncertainties have substantial effects on hydrological predictions.
Article
Environmental Sciences
Jose M. Rodriguez-Flores, Rohini S. Gupta, Harrison B. Zeff, Patrick M. Reed, Josue Medellin-Azuara
Summary: This study investigates the application of Evolutionary Multi-Objective Direct Policy Search (EMODPS) in groundwater management for irrigation systems. The findings demonstrate that adaptive irrigation policies can achieve flexible groundwater management that balances revenue and sustainability goals.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Environmental Sciences
David F. Gold, Patrick M. Reed, David E. Gorelick, Gregory W. Characklis
Summary: Regionalization approaches are necessary strategies for managing drought risks and co-investing in infrastructure. However, they also bring new challenges to water supply planning. The DU PathwaysERAS framework provides an integrated approach to evaluate policy outcomes and explore power relationships in cooperative infrastructure policies.
WATER RESOURCES RESEARCH
(2023)
Article
Environmental Sciences
Lillian B. Lau, Patrick M. Reed, David F. Gold
Summary: Urban water utilities are exploring cooperative regional water supply strategies to address climate change and increasing demands. However, there is little research on how uncertainties in cooperative actions affect infrastructure investment and management, and the risks involved. To address this, a framework called DU(SOS)Pathways is introduced to analyze the effects of uncertainties in cooperative regional water supply policies. The framework reveals the effects of uncertainties on short-term and long-term decision-making, and highlights the potential for increased regional conflicts and vulnerabilities. Overall, the framework provides guidance for cooperative policy implementation in regional water supply systems.
WATER RESOURCES RESEARCH
(2023)
Article
Environmental Sciences
Sai Veena Sunkara, Riddhi Singh, David Gold, Patrick Reed, Ajay Bhave
Summary: Robustness analysis is important for large-scale water infrastructure projects facing uncertain futures, but it is challenging to identify an appropriate metric due to diverse actors and interests. In this study, different water transfer strategies for a megaproject in India were compared using various evaluation methods, showing that metric choices significantly impact the rankings of strategies.
Article
Green & Sustainable Science & Technology
Enayat A. Moallemi, Sibel Eker, Lei Gao, Michalis Hadjikakou, Qi Liu, Jan Kwakkel, Patrick M. Reed, Michael Obersteiner, Zhaoxia Guo, Brett A. Bryan
Summary: Progress toward the Sustainable Development Goals (SDGs) has fallen short of expectations and may not fully meet the 2030 targets. Previous evaluations have focused on short- and medium-term assessments, but a longer-term view is needed to explore the long-term effects of sustainability. Early planning for system change is crucial for accelerating progress and achieving ambitious goals by 2030, 2050, and 2100.
Article
Engineering, Aerospace
Filipe Pereira, Patrick M. Reed, Daniel Selva
Summary: This article explores the design possibilities of a dedicated GNSS system in lunar orbit and uses a multi-objective evolutionary algorithm framework to optimize its performance. The results indicate that a minimum of 24 satellites in near-circular polar orbits are required to achieve high-quality PNT information.
NAVIGATION-JOURNAL OF THE INSTITUTE OF NAVIGATION
(2022)