Article
Engineering, Civil
Conrad Wasko, Yawen Shao, Elisabeth Vogel, Louise Wilson, Q. J. Wang, Andrew Frost, Chantal Donnelly
Summary: Changes in the hydrologic cycle have significant impacts on agricultural productivity, water resources availability, and environmental management in Australia. While northern parts of Australia have experienced increasing rainfall and water availability, the southwest and southeast coast have seen declines in rainfall, affecting runoff and soil moisture. Standardised runoff index indicates increasing streamflow droughts across large parts of Australia.
JOURNAL OF HYDROLOGY
(2021)
Article
Meteorology & Atmospheric Sciences
Bailing Li, Matthew Rodella
Summary: Severe floods and droughts are increasing in frequency and severity around the world due to climate change. This study identified and quantified extreme wet and dry events using satellite data, and found that these events are closely linked to large-scale oceanic oscillations and global temperature. The results highlight the importance of understanding changes in hydrological extremes and the need for continuous monitoring.
JOURNAL OF CLIMATE
(2023)
Article
Meteorology & Atmospheric Sciences
Daniela Granato-Souza, David w. Stahle
Summary: Recent extreme climate events in the Amazon Basin, such as severe droughts and floods, may be a result of increased amplitude of the hydrologic cycle. These changes in precipitation and streamflow could be attributed to natural variability, deforestation, or anthropogenic climate change. Tree-ring reconstructions and historical records indicate that the recent river-level extremes may have been similar to or even exceeded those observed during the nineteenth century.
JOURNAL OF CLIMATE
(2023)
Review
Environmental Sciences
Michelle T. H. Van Vliet, Josefin Thorslund, Maryna Strokal, Nynke Hofstra, Martina Floerke, Heloisa Ehalt Macedo, Albert Nkwasa, Ting Tang, Sujay S. Kaushal, Rohini Kumar, Ann Van Griensven, Lex Bouwman, Luke M. Mosley
Summary: Climate change and extreme weather events pose serious challenges for water management due to their impacts on water resources availability and water quality. This review assesses the impacts of these events and climate change on river water quality and identifies the key responses and driving mechanisms. The findings show that river water quality generally deteriorates under droughts, heatwaves, rainstorms, floods, and long-term climate change, while improvements or mixed responses are also reported. The driving mechanisms include hydrological alterations, rises in water and soil temperatures, and interactions among hydroclimatic, land use, and human drivers.
NATURE REVIEWS EARTH & ENVIRONMENT
(2023)
Review
Environmental Sciences
Pamela Sofia Fabian, Hyun-Han Kwon, Meththika Vithanage, Joo-Heon Lee
Summary: The increasing frequency and intensity of extreme climate events are expected consequences of climate change that make the prediction of water quality parameters more challenging. This review aims to summarize the causal mechanisms across climate extremes considering water quality parameters and Asian water quality modeling methods associated with floods and droughts. It emphasizes the importance of understanding the connections between climate extreme events and water quality through collective efforts.
ENVIRONMENTAL RESEARCH
(2023)
Article
Marine & Freshwater Biology
Laura C. Feher, Michael J. Osland, Christopher M. Swarzenski
Summary: By applying the Coastal Salinity Index (CSI) to 22 years of salinity data in the Barataria Estuary, Louisiana, this study examined the impacts of extreme events on estuarine salinities. The results showed that droughts, hurricanes, floods, and freshwater flow alterations influenced the salinity patterns in the estuary. The study provides valuable insights into the influence of extreme events on estuarine salinity regimes and emphasizes the importance of the CSI for identifying periods with extreme salinities.
ESTUARINE COASTAL AND SHELF SCIENCE
(2023)
Article
Environmental Sciences
Zemede M. Nigatu, Dongming Fan, Wei You, Assefa M. Melesse
Summary: This study evaluated extreme hydroclimatic conditions in the Nile River Basin using GRACE/GRACE-FO derived indices and standardized hydroclimatic indices. The results showed that GRACE/GRACE-FO derived indices can better capture major flood and drought events compared to standardized indices, with the highest correlation found between PDSI and WSDI. The proposed framework can serve as a useful tool for flood and drought monitoring in data-scarce hydro-meteorological sites.
Article
Environmental Sciences
Rohini S. Gupta, Scott Steinschneider, Patrick M. Reed
Summary: This article presents a method for creating future climate and streamflow scenarios by incorporating both natural climate variability captured in tree-ring chronologies and anthropogenic climate change. The study finds that natural variability plays a significant role in shaping extreme floods and droughts, but the influence of anthropogenic climate change becomes more important at longer planning horizons.
Article
Environmental Sciences
Lyuliu Liu, Chan Xiao, Yihua Liu
Summary: This study investigates the potential impacts of climate change on water scarcity and hydrological extremes in the Yellow River Basin. The results show that water shortage will continue to be a threat, although there will be some alleviation. More and larger floods will occur in the summer, especially in the long term under the SSP5-8.5 scenario. There will also be more hydrological droughts, with some extreme droughts exceeding historical magnitudes.
Article
Engineering, Civil
Jian He, Yejia Qiang, Hongyu Luo, Shengyang Zhou, Limin Zhang
Summary: This study aims to develop a novel stress testing framework for evaluating urban system flooding upon extreme rainstorms in Hong Kong. The study focuses on the densely populated Kowloon area, incorporating detailed urban settings and validating the model through field observations. The results indicate that mitigation measures are needed to reduce the affected percentage and duration of underground mass transit railway stations and residential buildings during extreme rainstorms in order to ensure public transportation services and reduce potential exposure of residents.
JOURNAL OF HYDROLOGY
(2021)
Article
Geosciences, Multidisciplinary
Rick Lader, Uma S. Bhatt, John E. Walsh, Peter A. Bieniek
Summary: This study investigates the observed trends and projected changes of hydroclimatic extremes indices in southeast Alaska. The results show mixed tendencies of precipitation variability but consistent trends towards warmer and wetter conditions. The models project increased precipitation, longer dry periods, and reduced snowfall.
EARTH INTERACTIONS
(2022)
Article
Environmental Sciences
Mou Leong Tan, Ju Liang, Narimah Samat, Ngai Weng Chan, James M. Haywood, Kevin Hodges
Summary: This study uses the latest climate simulation data and hydrological models to evaluate future extreme flows in the Kelantan River Basin in Malaysia. Results show that future precipitation, streamflow, and temperatures are projected to increase, especially during monsoon seasons, indicating potential changes in hydro-climatic extremes. Additionally, differences in projections between high-resolution and low-resolution models highlight the importance of model resolution in understanding future changes.
Article
Green & Sustainable Science & Technology
Eyad Abushandi, Manar Al Ajmi
Summary: The objective of this research was to analyze hydrological variability by conducting an intensive analysis of extreme events, specifically under dry and wet conditions. The findings from the study indicate that the two indices used, Standard Precipitation Index (SPI) and Rainfall Anomaly Index (RAI), along with the Soil Conservation Service (SCS) method, are consistent in monitoring drought and flood events under climate change.
Article
Engineering, Civil
Sai Kiran Kuntla, Manabendra Saharia, Pierre Kirstetter
Summary: This study utilizes a large-sample data-driven approach to characterize extreme streamflows across the globe. It finds that meteorological variables are the most influential factors in extreme flood events, and their influences vary among different climate classes. Additionally, geomorphological variables play a crucial role in different climate classes as well. The insights from this study can contribute to predicting peak discharge at ungauged stations and formulating risk management strategies.
JOURNAL OF HYDROLOGY
(2022)
Article
Engineering, Chemical
Anqi Liu, Jonghun Kam, Sae Yun Kwon, Wanyun Shao
Summary: Through sentiment analysis of over 10,000 water pollution complaints from residents in Alabama, USA (2012-2021), this study finds that the 2017 state-wise drought increased negative water pollution complaints by +35%. Since COVID-19, there has been a significant decrease in negative and subjective water pollution complaints by -30% and an increase by +20%, respectively, and these sentiment changes have persisted until 2021. This study highlights the importance of timely response to changes in public emotions and attitudes in environmental governance and management.