Articles tagged with Water Management
A recent review study led by UT Austin examines the planet's freshwater supplies and strategies for sustainably managing them. The study emphasizes the importance of recognizing surface water and groundwater as a single resource to ensure future water resilience.
The 57th annual meeting of the Geological Society of America's South-Central Section will take place in Oklahoma, USA, from March 13-14. The event features a diverse program covering various geologic disciplines and includes environmental-related sessions on topics such as hydrogeology and unconventional resources.
Researchers analyzed two US Army Corps of Engineers flood megaprojects in Rhode Island that emerged simultaneously after hurricane activity around the 1950s. The study found that strong public support and political backing were crucial factors in advancing one project, while the other failed to gain momentum due to environmental concer...
Researchers at KAUST have developed a rapid and sensitive soil moisture sensor using metal-organic frameworks (MOFs) to optimize water usage in agriculture. The MOF-based sensor shows high sensitivity and selectivity for water even in the presence of metal ions, enabling precise irrigation management.
New analyses suggest that climate change alters global precipitation and evaporation patterns, leading to increased sensitivity in river water availability. This study revises forecasting models by incorporating local measurement data from over 9,500 catchments worldwide.
A new study on Chesapeake Bay water quality found that pollution thresholds affect reduction efforts, and larger reductions may be needed to induce complete reversal of eutrophication-induced hypoxia. The research revealed that the system responds only until a certain threshold is crossed, then it takes twice the effort to make a change.
Researchers discovered 'dhaka' pits that stored surface and ground water for the city, managing a stable supply during dry periods. The ancient civilization's innovative approach to water management may offer valuable lessons for modern societies.
A recent study by Concordia researchers Kregg Hetherington and Élie Jalbert examines the Montreal Big Flush event, a media circus surrounding municipal sewage repairs. The authors argue that effective affective maintenance was employed by city administrators to manage public outcry.
A new UC Riverside-led study reveals that drought-tolerant trees in urban areas use significantly more water than their natural counterparts. The research found that even 'drought-tolerant' species like eucalyptus and ficus increase their water intake when irrigated.
Research by Dr. Jessie Turner and colleagues highlights the impact of water-clarity metrics on seagrass and light-loving organism restoration goals. The study suggests that different measurement methods can misrepresent underwater light climates, emphasizing the need for clear communication of methods used.
Researchers found that riparian buffers can increase stream flow during low-flow events and maintain water levels in areas with high future development. However, the effectiveness of buffers was limited, and they were not enough to mitigate extreme changes in stream flow.
A team of researchers from Xi'an Jiaotong-Liverpool University and other institutions has identified a flexible and user-friendly model for predicting flood frequency in a changing environment. The fractional polynomial-based regression method is more effective than existing models, which often fail to account for factors like climate ...
Scientists have discovered a long-sought plant water loss-regulating sensor, composed of two proteins working together to regulate stomatal movements in response to changing CO2 concentrations. This finding has significant implications for trees, crops, and wildfires, as well as efficient plant water use and CO2 uptake.
A comprehensive analysis of 20 US cities reveals widespread failure to incorporate equity and justice principles in green infrastructure planning. The study highlights the need for fundamental transformation in planning processes to ensure that benefits are distributed fairly and marginalized communities are involved.
Researchers from Politecnico di Milano investigated water's role in conflicts, focusing on socio-hydrological conditions and unequal resource use. The study provides a new methodological approach to understanding natural resource conflicts, with potential applications for creating more accurate representations of socio-ecological systems.
Researchers warn of impending 35-60 year droughts in western US unless greenhouse gas emissions are curbed to limit warming to 2.5 degrees Celsius. Mountain snowpack is shrinking due to global warming, threatening agriculture, ecosystem support, and urban water supplies.
A KIT study reveals that low-temperature aquifer thermal energy storage is a promising technology for reducing greenhouse gas emissions from heating and cooling buildings. The study found that over 54% of German territory is suited well or very well for this system, with the potential to increase by 13% by 2100.
A new study by CABI suggests that a tiny weevil (Stenopelmus rufinasus) can save Great Britain up to £16.8 million in annual management costs of the invasive aquatic fern Azolla filiculoides. The estimated benefits of the weevil's biocontrol range from £800,000 to £1.6 million per year.
Researchers from Singapore University of Technology and Design show that restoring natural water availability to the Mekong's floodplains is possible through coordination among hydropower producers. By altering dam release decisions and production plans, key components of hydrological variability can be restored, leading to improved ec...
A new study found that cover crops grown concurrently with cash crops can effectively reduce weed biomass in California orchards. The researchers discovered that planting cover crops early in the growing season, when adequate moisture is available, results in predictable and abundant plant cover.
A University of Maryland study found that stakeholders agree on the need for a decentralized approach to stormwater management but diverge on responsibility. Two groups believe stormwater poses a public threat, while the third sees it as an underutilized resource that can be managed with technology.
Researchers at Okayama University found that an acidic adsorption layer in carbon nanotubes facilitates efficient adsorption of negatively charged nitrate anions, making the aqueous solution alkaline. This study provides a novel model for designing carbon nanotubes suitable for ion adsorption and purification.
Research identifies Colorado River flow decline as main cause of Salton Sea's shrinking, leading to increased salt and chemical concentrations. The study highlights the need for a watershed-centric approach to mitigate the environmental risks and health impacts of the Salton Sea's decline.
A workshop on flood risk governance in Brazil and the UK identified research gaps, including local data, integration systems, and visualization tools. Innovative initiatives are being developed using tools such as an app that empowers citizens to input data and improve disaster prevention.
Researchers applied a new integrated model linking surface water to groundwater to estimate water resources at high spatial resolution. The study found that irrigation increases atmospheric water loss but reduces groundwater support, especially during dry seasons.
A new review highlights the need for more research on the effects of wildfires on water quality in watersheds. The study found that pollutants from burned structures can exceed regulatory limits and affect the surrounding ecosystem, leading to increased risk of water contamination.
A study by Helmholtz Centre for Environmental Research - UFZ found that climate-induced deforestation can lead to a significant increase in dissolved phosphorus concentration and nitrogen levels in reservoirs. This can result in an overgrowth of diatoms and green algae, compromising water quality.
Climate change affects European agriculture in distinct ways across regions, with southern Europe experiencing the highest number of initiatives and adaptations. Northern Europe expects a longer growing season, while central and southern Europe struggle with drought and erratic rainfall.
A new study found that 72% of methylmercury concentration variance in largemouth bass can be explained by land cover types. Monitoring efforts should focus on ecoregions with increased sensitivity to atmospheric mercury deposition.
New research from the University of Waterloo suggests that relying on stormwater management ponds to restore wetlands is unsustainable and lacks critical ecosystem services. The study found a low proportion of wetlands left in areas with high pond creation rates, posing an environmental challenge.
A study by Australian National University found that at least 25,245 people in remote communities had access to non-compliant drinking water services. The researchers also identified 408 locations with poor water quality, including 40% of Indigenous communities. A national drinking water database is urgently needed to address these gaps.
A new climate change study finds that water resources will become more variable and unpredictable due to declining snowpack, resulting in less reliable runoff and streamflow. This decline will have cascading impacts on ecosystems that rely on snow-based water resources, including drying out soils and increasing fire risk.
Researchers created a dataset quantifying trends of evaporative water loss from 1.4 million global lakes and artificial reservoirs, revealing a 15.4% increase in long-term lake evaporation volume. This finding highlights the importance of accurate information for water management decision-makers in addressing climate change impacts.
The Tibetan Plateau's water supply is under strain due to rapid melting of snow and upstream glaciers. This scarcity could lead to increased risks of international and intranational disputes in countries relying on it.
Researchers at FAU Harbor Branch develop an ocean model to study connectivity between the Everglades and Florida Keys via Florida Bay. The tool aims to predict changes in responses to water management, ecological restoration and climate change.
A new irrigation decision support system enables growers to practice more efficient irrigation by analyzing climate predictions, humidity sensors, and irrigation meters. This system allows for optimal watering schedules and reduces water consumption by up to 20% through controlled deficit irrigation strategies.
A new study reveals that large-scale hydrological models producing global irrigation water withdrawal estimates are unreliable due to overlooking uncertainties and traditional irrigator practices. The researchers argue that these biases can lead to grave policy misjudgments, devastating consequences and inaccurate water management.
A SUTD study has uncovered the reservoir filling strategies and operating rules of China's big hydropower dams on the Lancang-Mekong river. The data shows that dam operations remained steady during a severe drought, indicating no need for emergency releases to mitigate its impact.
A new study has identified 100 crucial global water questions facing the planet today, including water scarcity, sanitation, and climate dynamics. The research emphasizes the need for concerted efforts in interdisciplinary research and action to address the consequences of human governance failure on water resources.
A multidisciplinary project aims to develop a decision-making tool to estimate the risk of water contamination in flooded areas. The research team will collect public data and conduct field work to test their approach in small study areas, ultimately enabling Québec to reduce health risks by better protecting water quality.
Researchers at North Carolina State University found that soils in the Walnut Creek watershed can absorb over 99% of precipitation events, contradicting previous studies. The study suggests that urban planners address flooding problems by considering the amount and location of paved surfaces rather than soil composition.
The Mekong Delta in Vietnam could be almost completely submerged by sea water by the end of the century if urgent action is not taken. A Politecnico di Milano study identified six measures to increase the survival of the delta, including regulating sediment extraction and implementing natural coastal protection solutions.
A new study provides a framework for predicting snowpack runoff and its impact on flood risk during rain-on-snow events. By leveraging hourly data from existing snow monitoring stations, researchers have created a decision support tool that can help water managers prepare for potential flooding.
Scientists developed a method to estimate summer rainfall in the Southwest months in advance, performing well in Arizona. By analyzing lower atmosphere moisture, they created monthly forecasts to aid reservoir storage and water allocation decisions.
Researchers developed an interdisciplinary resilience framework to understand the connection between social and water systems in communities like the Choyeros. The framework explores how social systems impact water supply resilience and vice versa, providing a tool to generate conversations and coordinate responses.
The study found that stream gauges are disproportionately located in large rivers and human-occupied watersheds, but sparsely distributed in protected areas and non-perennial rivers. This is critical information for freshwater conservation and water security concerns.
A new study shows substantial increases in atmospheric thirst across the US Southwest, with warming temperatures accounting for 57% of the changes observed. The largest changes are centered over the Rio Grande region, where crops now require more water and can be expected to require even more in the future.
Researchers at Flinders University discovered that stormwater interception and infiltration using the TREENET Inlet enhances white cedar tree growth, with saplings growing 65% more in height and 60% more in diameter. The study found increased water uptake and photosynthesis rates for trees receiving harvested stormwater.
Researchers have developed a model to predict Vibrio vulnificus abundance in the canal by analyzing rainfall, water temperature, dissolved nutrients and organic matter. The study found that warmer waters due to climate change may lead to an increase of twice or three times current levels of bacteria by the end of the century.
Groundwater supplies half of world's drinking water and is vital to agriculture and industry; poor management threatens global water security. A study in Australia highlights the benefits of collective action in groundwater management.
Researchers found that big trees provide a doughnut-shaped zone surrounding them where snowpack can endure, benefiting forests with sparse precipitation. The study suggests conserving healthy and large tree species can help retain snow on the ground.
A study of 2,272 streams in North America found that human-altered streams are at greater risk of severe flooding due to increased paved surfaces. Human activities also lead to water shortages and biodiversity loss in these streams.
A study from the University of California, Davis, found that reducing leaks in urban water systems can be a highly effective and cost-competitive method for saving water. The research suggests that leak reduction is the most cost-effective tool in an urban water manager's toolkit, with estimated savings of $277 per acre-foot.
A study led by the University of Texas at Austin found that groundwater levels in Sub-Saharan Africa frequently increased over time, with most aquifers replenishing their water supply during rainy periods. The research tracked long-term water storage gains and losses across Africa's major aquifers using NASA's GRACE satellites.
According to a new EPFL study, Swiss rivers are at risk of overheating by the end of the century. If greenhouse gas emissions are reduced, river temperatures may only rise by 1°C and discharge decreases by 5% in mountain catchments. Inaction could lead to extreme consequences, including glacier loss and decreased biodiversity.
A recent global study found that more than a quarter of the world's rivers had pharmaceutical concentrations at potentially toxic levels. The study, which included data from over 258 rivers across seven continents, also revealed concurrent contamination by multiple classes of pharmaceuticals.
A new study from the University of Waterloo provides a roadmap for faster improvements in water quality by tackling nitrogen legacies. The research recommends six steps to address this critical issue, which has persisted for decades due to excess nitrogen fertilizers.
A new study suggests that China's pursuit of carbon neutrality could lead to significant water savings, with 24% of industrial water use expected to be saved by 2060. However, some provinces may struggle to meet their water-use targets, and coordinated climate-water strategies are needed to address these challenges.
This book provides a fundamental understanding of the physical, biological, and chemical processes governing fine sediment transport in open water. It covers various spatial and temporal scales, from micro-scale to system-wide, and discusses interactions between disciplines such as hydrodynamics and soft soil mechanics.
Native marine macroalgae thrive in environments created by natural groundwater seeps, benefiting from enhanced nutrients despite lowered salinity levels. In contrast, tainted groundwater seeps support invasive species, threatening native algal dominance.