Articles tagged with Hydrology
Comprehensive exploration of living organisms, biological systems, and life processes across all scales from molecules to ecosystems. Encompasses cutting-edge research in biology, genetics, molecular biology, ecology, biochemistry, microbiology, botany, zoology, evolutionary biology, genomics, and biotechnology. Investigates cellular mechanisms, organism development, genetic inheritance, biodiversity conservation, metabolic processes, protein synthesis, DNA sequencing, CRISPR gene editing, stem cell research, and the fundamental principles governing all forms of life on Earth.
Comprehensive medical research, clinical studies, and healthcare sciences focused on disease prevention, diagnosis, and treatment. Encompasses clinical medicine, public health, pharmacology, epidemiology, medical specialties, disease mechanisms, therapeutic interventions, healthcare innovation, precision medicine, telemedicine, medical devices, drug development, clinical trials, patient care, mental health, nutrition science, health policy, and the application of medical science to improve human health, wellbeing, and quality of life across diverse populations.
Comprehensive investigation of human society, behavior, relationships, and social structures through systematic research and analysis. Encompasses psychology, sociology, anthropology, economics, political science, linguistics, education, demography, communications, and social research methodologies. Examines human cognition, social interactions, cultural phenomena, economic systems, political institutions, language and communication, educational processes, population dynamics, and the complex social, cultural, economic, and political forces shaping human societies, communities, and civilizations throughout history and across the contemporary world.
Fundamental study of the non-living natural world, matter, energy, and physical phenomena governing the universe. Encompasses physics, chemistry, earth sciences, atmospheric sciences, oceanography, materials science, and the investigation of physical laws, chemical reactions, geological processes, climate systems, and planetary dynamics. Explores everything from subatomic particles and quantum mechanics to planetary systems and cosmic phenomena, including energy transformations, molecular interactions, elemental properties, weather patterns, tectonic activity, and the fundamental forces and principles underlying the physical nature of reality.
Practical application of scientific knowledge and engineering principles to solve real-world problems and develop innovative technologies. Encompasses all engineering disciplines, technology development, computer science, artificial intelligence, environmental sciences, agriculture, materials applications, energy systems, and industrial innovation. Bridges theoretical research with tangible solutions for infrastructure, manufacturing, computing, communications, transportation, construction, sustainable development, and emerging technologies that advance human capabilities, improve quality of life, and address societal challenges through scientific innovation and technological progress.
Study of the practice, culture, infrastructure, and social dimensions of science itself. Addresses how science is conducted, organized, communicated, and integrated into society. Encompasses research funding mechanisms, scientific publishing systems, peer review processes, academic ethics, science policy, research institutions, scientific collaboration networks, science education, career development, research programs, scientific methods, science communication, and the sociology of scientific discovery. Examines the human, institutional, and cultural aspects of scientific enterprise, knowledge production, and the translation of research into societal benefit.
Comprehensive study of the universe beyond Earth, encompassing celestial objects, cosmic phenomena, and space exploration. Includes astronomy, astrophysics, planetary science, cosmology, space physics, astrobiology, and space technology. Investigates stars, galaxies, planets, moons, asteroids, comets, black holes, nebulae, exoplanets, dark matter, dark energy, cosmic microwave background, stellar evolution, planetary formation, space weather, solar system dynamics, the search for extraterrestrial life, and humanity's efforts to explore, understand, and unlock the mysteries of the cosmos through observation, theory, and space missions.
Comprehensive examination of tools, techniques, methodologies, and approaches used across scientific disciplines to conduct research, collect data, and analyze results. Encompasses experimental procedures, analytical methods, measurement techniques, instrumentation, imaging technologies, spectroscopic methods, laboratory protocols, observational studies, statistical analysis, computational methods, data visualization, quality control, and methodological innovations. Addresses the practical techniques and theoretical frameworks enabling scientists to investigate phenomena, test hypotheses, gather evidence, ensure reproducibility, and generate reliable knowledge through systematic, rigorous investigation across all areas of scientific inquiry.
Study of abstract structures, patterns, quantities, relationships, and logical reasoning through pure and applied mathematical disciplines. Encompasses algebra, calculus, geometry, topology, number theory, analysis, discrete mathematics, mathematical logic, set theory, probability, statistics, and computational mathematics. Investigates mathematical structures, theorems, proofs, algorithms, functions, equations, and the rigorous logical frameworks underlying quantitative reasoning. Provides the foundational language and tools for all scientific fields, enabling precise description of natural phenomena, modeling of complex systems, and the development of technologies across physics, engineering, computer science, economics, and all quantitative sciences.
A new dataset doubles documented stream miles in the Chesapeake Bay Watershed, allowing for more accurate characterization of water flow and land use. The high-resolution data will help prioritize restoration projects, such as streamside tree plantings and pollutant filtering.
Research shows that island rivers shape reef passes, allowing seawater and nutrients to flow in and out. The locations of reef passes align with where rivers funnel out from an island's coast, providing circulation throughout the reef.
The Global Declaration of Commitment for Scientific Ocean Drilling aims to promote global cooperation and collaboration in ocean science. The declaration sets out core principles for transparent access to data and samples, inclusive participation, environmental responsibility, and alignment with the UN SDGs.
The Florida Atlantic University Sensing Institute's SEA Econet network provides accurate rainfall and flood forecasting, supporting public safety during severe weather events. With over 160 atmospheric stations and more than 30 water-level stations across Florida, the network delivers real-time data to inform forecasts and warnings.
A study by Göttingen University researchers combined satellite data with manual measurements to better understand forest soil moisture. The findings show that soil moisture is strongly influenced by weather and season, not exact location, and highlight the importance of monitoring soil moisture over time for effective forest management.
A team of researchers from Syracuse University and MIT has uncovered evidence that oxygenation in the ocean—crucial for life as we know it—may have occurred earlier than previously thought. This finding provides new insights into the pace of biological evolution in response to rising oxygen levels.
Scientists on IODP³-NSF Expedition 501 aim to validate hypotheses about water origin and better understand offshore aquifer systems. The expedition will collect sediment samples and water from beneath the ocean floor, shedding light on the dynamics of these groundwater systems.
A groundbreaking expedition aims to validate hypotheses about the origin of freshened groundwater in offshore aquifers. Researchers will collect sediment and water samples from beneath the ocean on the New England Shelf, shedding light on the dynamics of these systems and their influence on nutrient and element cycling.
Researchers Mohammad Afzal Shadab and Eric Hiatt developed a computer model that calculates the time it took for water on early Mars to percolate from the surface down to the aquifer, finding a 50-200 year timeframe. This process could have covered Mars with at least 300 feet of water.
A PolyU research team found a rapid decline in global soil moisture over the past 40 years, resulting in significant water loss and sea level rise. The study suggests that precipitation deficits, global warming, and changing rainfall patterns are key factors behind this depletion.
Most spring runoff heading to reservoirs is actually several years old, indicating that most mountain snowfall has a years-long invisible journey as groundwater before it leaves the mountains. The findings indicate there is an order of magnitude more water stored underground than most Western water managers account for.
Researchers from the University of Waterloo have developed a method to restore tens of thousands of oil and gas exploration sites in western Canada using native moss. The technique involves transplanting moss onto decommissioned well pads, effectively recreating peatlands and supporting ecosystem development.
The proposed elimination of NOAA Research would drastically undercut the scientific backbone needed for accurate weather forecasts and services. Key stakeholders like the American Meteorological Society and National Weather Association urge action to maintain competitiveness in weather forecasting.
A new numerical computer model tracks how pollution travels through Galveston Bay, helping scientists understand water movement in estuaries. The model is critical for evaluating climate variability and sea level fluctuation impacts on coastal communities, guiding better decisions to keep water clean and prevent flooding.
Researchers studying ancient rhino teeth found at Nebraska's Ashfall Fossil Beds State Historical Park discovered that prehistoric rhinos lived in large herds. The animals' limited mobility suggests they didn't respond to the volcanic eruption or migrate seasonally, instead likely dying from prolonged exposure to ash and lack of food.
Researchers developed a machine learning-powered fluid simulation model that significantly reduces computation time without compromising accuracy. The new surrogate model maintains the same level of accuracy as traditional particle-based simulations while reducing computation time from approximately 45 minutes to just three minutes.
Three UVA Engineering faculty members have been elected as AAAS Fellows for their groundbreaking work in computer architecture, energy transport, and hydrology. Sandhya Dwarkadas, Patrick E. Hopkins, and Venkataraman Lakshmi were recognized for their innovative research and contributions to their respective fields.
A study by researchers at the University of Texas at Austin and collaborators in Arizona and Colorado found notable groundwater gains in Central Arizona despite long-term water stress. The policies have helped bank over 25 cubic kilometers of groundwater from 1989-2019, but the Colorado River faces uncertain future due to climate change.
A new study reveals that two dam failures and flawed risk assessment amplified the Derna Flood, which was nearly twentyfold more destructive than expected. The research highlights the urgent need for improved flood mitigation strategies, especially in dryland regions.
Scientists develop a method to create high-quality activated carbon from gasification char, which can be used in wastewater treatment. The process involves physical activation and achieves a surface area of 800 m²/g, making it comparable to fossil-based activated carbons.
Researchers studied Aurora Subglacial Basin's subglacial hydrology, finding dynamic rivers that change over time. This new insight may alter predictions of rising sea levels and the role of subglacial water in ice dynamics.
Researchers used reinforcement learning to simulate coastal defense strategies against sea level rise and flooding, finding dynamic seawalls to be more cost-effective than traditional methods. The study aimed to address uncertainty in long-term climate change mitigation efforts and provide a flexible approach for communities to prepare...
The US weather enterprise faces significant risks due to federal science funding cuts, which could lead to reduced weather forecasting accuracy and increased vulnerability to hazardous weather. The value of weather information to the US economy exceeds $100 billion annually.
Researchers at the University of Houston have developed a new membrane that allows water to flow eight times faster while maintaining high salt rejection rates. This breakthrough could lead to more efficient and cost-effective desalination systems, lowering costs and increasing access to clean water.
Researchers generated a dataset of water flow beneath the entire Antarctic Ice Sheet, improving projections of sea level rise. The model predicts higher degrees of glacier melt and mass loss by the end of the century.
A small amount of Arctic groundwater releases an estimated 230 tons of organic carbon per day along Alaska's coastline, contributing to climate change and ocean acidification. This discovery highlights the significant role of freshwater discharge in the Arctic Ocean.
Researchers analyzed tropical storm-related precipitation to understand its impact on local water resources and provide insights into climate predictions. The study aims to help communities prepare for extreme storms and manage water resources before and after the storms.
A new study reveals that climate change can dramatically alter how grasslands use and move water. Under drought conditions and warmer temperatures in a CO2-rich climate, plants conserve more water by releasing less to the atmosphere through transpiration.
A survey conducted by Professor Takahiro Endo at Osaka Metropolitan University found that Hiroshima Prefecture provided a free water inspection service for well owners after the 2018 floods, promoting their initiative to open inspected wells to the public. This collaborative effort supplemented local governments' emergency water supply...
A study published in Environmental Microbiology sheds light on how microbial communities in coastal groundwater respond to changes in seawater. The research found that these microbes play a crucial role in maintaining coastal water quality, but their resilience is vulnerable to climate change.
A simulation mapping underground water on a continental scale reveals that rainfall and snowmelt flow much farther underground than previously thought. The study also shows that more than half of the water in streams originates from aquifers previously believed to be too deep for streams.
The 105th Annual Meeting of the American Meteorological Society will address key issues in weather, water, and climate. The meeting features a Presidential Forum on physical, social, cultural, and economic impacts of climate change, with experts from the region of the Mississippi River Delta.
Researchers at Osaka Metropolitan University identified clogging in a geothermal well due to accidental venting, highlighting the need for regular inspection and monitoring of water quality. The study emphasizes the importance of geochemical analysis of groundwater for stable and widespread use of aquifer thermal energy storage systems.
Roman Krzysztofowicz, a professor of systems engineering at the University of Virginia, has written a new book that combines his decades-long research on probabilistic forecasts and optimal decisions. His work builds on his early studies in hydrology and computer programming, which laid the foundation for his later studies in decision ...
Large-scale wildfires in radiologically contaminated areas enhance the mobility of radionuclides like · 137 Cs and ¹ 90 Sr in rivers. This increases radiation exposure for residents, particularly after a fire in the Chornobyl exclusion zone in Ukraine.
A new NASA-led study found that plants' responses to changing rainfall patterns are crucial for understanding their role in the carbon cycle. Daily rainfall variability drove growth globally, with certain ecosystems thriving under conditions of infrequent but intense rain.
New research maps 35 years of river changes on a global scale, revealing 44% of downstream rivers saw decreases in water flow, while 17% of upstream rivers saw increases. This shift has significant implications for flooding, ecosystem disruption, and freshwater supplies.
Researchers found a link between El Niño events and increased fire risk in the Amazon region, particularly where groundwater storage is compromised. The study highlights the critical role of groundwater in sustaining vegetation during droughts, emphasizing the need for prevention efforts during extreme climatic conditions.
A new study finds that heavy rains deliver the greatest amounts of fertilizer-derived nitrogen through creeks and rivers into the northern Gulf of Mexico. The research can be used to develop policies to protect the gulf from nutrient overloading, harmful algal blooms, and oxygen-depleted 'dead zones'.
Researchers suggest a scientific framework to operate the Nile's mega dams during droughts, balancing sustainable hydropower generation with minimizing downstream water deficit. The framework aims to increase resilience for over 300 million inhabitants in the Eastern Nile Basin living under uncertain climatic projections.
Recent studies analyze hurricane damage, water flow into dams, marine heatwaves, and the impact of air pollution on vegetable market prices in South Korea. Hurricane Katrina remains the most damaging U.S. hurricane, while a new system predicts extreme air pollution episodes in India's New Delhi megacity.
Parks have been found to be the most effective solution for reducing overall air pollution, cutting it by 22% in city-wide studies. However, other green spaces like trees and green walls showed mixed results, with some even worsening air quality.
Researchers have developed a liquid moisture adsorbent that can efficiently harvest water from the air at near ambient temperatures. The technology, which uses random copolymers of polyethylene glycol and polypropylene glycol, has the potential to provide clean drinking water in arid regions and during disasters.
A new analysis finds that sustainable rates of groundwater withdrawal were surpassed 20 years prior to declining groundwater levels being generally recognized. Limiting groundwater pumping rates by nearly half can stabilize groundwater conditions, eliminating drying up of non-irrigation wells and stabilizing environmental flows.
Scientists at Helmholtz Centre for Environmental Research - UFZ have discovered chimney-shaped vents on the Dead Sea floor, emitting shimmering fluid. The chimneys are similar to black smokers but originate from surrounding aquifers, providing a new tool for predicting sinkhole formation.
Researchers at UMass Amherst have estimated carbon dioxide emissions from inland waters to 22 million US lakes, rivers and reservoirs. Their new modeling approach reveals previous methods may have overestimated CO2 emissions by as much as 25%.
According to a new USGS study, approximately 71-95 million people in the Lower 48 states may rely on groundwater containing detectable concentrations of PFAS for their drinking water supplies. The predictive model helps understand the potential for PFAS contamination and informs strategic planning for water resources.
A new study discovered toxic 'Forever Chemicals' in tap and bottled water from around the world, with 99% of samples containing PFOA and PFOS. Treatment methods such as boiling and activated carbon filtration can substantially reduce PFAS concentrations, with removal rates ranging from 50-90%.
A new study by Harvard researchers finds alarmingly high PFAS concentrations in fish tissues even up to 8 km from the military base. The results underscore the urgent need for more comprehensive monitoring of PFAS in aquatic ecosystems, particularly in regions where freshwater fishing is an important food source.
The SUPERSLUG initiative aims to forecast the impact of sediment slugs on river catchments and communities. The project will use a range of sensors and numerical models to provide comprehensive predictions of where and how long-term effects might be felt, up to decades or centuries after an event.
Closing Colorado's 'free river conditions' loophole could save millions of cubic meters of water and reduce stress in the region. The loophole allows anyone to take as much water as they want from the river, threatening the success of any payment program for farmers not irrigating their land.
A recent study by Stockholm University reveals that warming temperatures can speed up carbon dioxide emissions from ecosystems, but only if the environment is sufficiently moist. This finding highlights the critical role of water in the feedback loop between temperature and ecosystem metabolism.
Researchers have developed a new method to measure soil moisture in the vadose zone using seismic technology that detects vibrations from traffic noise. The technique, called distributed acoustic sensing, can provide real-time information on soil water content, crucial for managing water use and conservation efforts.
A new study reveals that the Sierra Nevadas are a significant source of groundwater for California's Central Valley aquifer, with some areas relying almost entirely on it. The research found that the groundwater is mixed in age, with some water being as young as 4 years old and others dating back over 40,000 years.
Researchers discovered an estimated 400 billion microplastic fibers in Frenchman Bay and its tributaries, with concentrations highest in the bay itself. The study found that microplastics were transported from land through rivers and estuaries into the bay, posing a significant threat to marine life and humans.
Researchers developed a deep learning-based model to estimate rainfall intensity from surveillance audio, achieving a root mean absolute error of 0.88 mm h-1 and a coefficient of correlation of 0.765. This approach offers a new method for high-resolution hydrological sensing, contributing to environmental resilience and urban sensing.
A new study maps global ecosystems dependent on groundwater, revealing 53% exist in areas with known depletion. The analysis provides critical data for conservation efforts, but highlights the need for policy protection and preservation.
Researchers study droughts, wildfires, and precipitation changes across the US Southeast and globally. The Great Salt Lake's drying exacerbates regional droughts, while a Maui wildfire is linked to atmospheric patterns.
A recent study monitored seven neighboring watersheds in Japan and found that larger watersheds exhibited longer peak lag times. This suggests that watershed scale is a more significant factor in determining flood timing than the degree of topographical relief.
A new study reveals that the Supreme Court's ruling weakening the Clean Water Act leaves many US waterways vulnerable to pollution. Ephemeral streams, which only flow during weather events, contribute significantly to river systems' total output, with 55% of water coming from them on average.