Articles tagged with Radar
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.
Tropical Cyclone Gita is weakening due to vertical wind shear, posing threats to New Caledonia and New Zealand. The storm will encounter cooler ocean waters and transition into an extra-tropical low on February 20.
The APSOS facility in Tibet provides range-resolved profiles of atmospheric variables and constituents, including temperature, wind, water vapor, and greenhouse gases. Long-term measurements are being taken to establish the first whole-atmosphere measurement database over the Tibetan Plateau.
A team of researchers at the University of Delaware is developing an augmented reality system that can spot explosive hazards precisely and from a safe distance. The technology uses traditional cameras, thermal infrared sensing, and ground penetrating radar to detect IEDs up to 30 meters away.
Tropical Cyclone Cebile in the Southern Pacific Ocean is experiencing strong vertical wind shear, causing rainfall to be pushed away from its center. The heaviest precipitation was found southeast of Cebile's center, with powerful storms on the southern side still dropping rain at high rates.
NASA's GPM satellite measured Tropical Cyclone Cebile's rainfall intensity at over 228 mm/h on January 31, 2018. The storm's eye featured a clear circular structure with deep convective banding and sharp eyewall.
A new study by Stanford researchers found that a large and unstable Antarctic glacier may be melting farther inland than previously thought, posing a threat to global sea levels. The Pine Island Glacier's Southwest Tributary could trigger or accelerate ice loss in Thwaites Glacier, potentially speeding the rate of sea-level rise.
Tropical Cyclone Irving was hurricane-force in the Southern Indian Ocean, with heavy rainfall rates of over 93 mm/h reported by GPM's DPR Ku Band. The storm's 3-D precipitation structure was examined, revealing powerful storms at altitudes of up to 17 km.
Tropical Depression Bolaven caused flooding, landslides, and at least two deaths in the Philippines with heavy rain falling at a rate of almost 121 mm per hour. A NASA satellite observed the storm's 3-D structure, revealing storm tops exceeding 16 km high.
Tropical Storm Kai-Tak generated heavy rainfall in central and southern Philippines, causing major flooding and landslides. The storm's estimated precipitation totals reached up to 512 mm (20.2 inches) along its track.
Tropical Storm Kai-tak developed near the east central Philippines, producing strong convective storms with heavy precipitation. GPM data showed intense storms dropping rain at a rate of over 143 mm/h and reaching altitudes of over 16 km.
A short-lived tropical cyclone in the Bay of Bengal produced moderate to heavy rainfall along northeastern India's coastline. The analysis used data from NASA's IMERG mission showed that more than 508 mm of rain fell in the Bay of Bengal, with storm tops reaching heights of over 11.5 km.
Researchers tracked bumblebee flight paths and found they refined routes to reduce travel distance, providing insights into route optimization in logistics and robotics. The study's large dataset offers a unique understanding of how animals solve spatial problems.
NASA's GPM mission observed remnants of Tropical Cyclone Ockhi reaching the Indian coast with heavy rainfall exceeding 101.6 mm per hour. The storms' displacement indicates strong vertical wind shear, pushing them away from the center.
Tropical Cyclone Ockhi was found to produce very heavy rainfall, with storms northwest of the eye dropping precipitation at rates over 60 mm/hour. The storm's vertical wind shear caused it to weaken, leading to a final landfall near the Gulf of Khambhat on Dec. 6.
Tropical Depression Dahlia's center was found to be devoid of rainfall by NASA's Global Precipitation Measurement mission. The storm was weakening and moving south at 10 knots, with cooler sea surface temperatures and wind shear expected to lead to its dissipation.
Heavy downpours caused schools and universities to close in Jeddah, with GPM's radar measuring precipitation at rates of over 115.5 mm/h and 90 mm/h. A 3-D view of the storms was created using data from NASA's Global Precipitation Measurement Mission.
Researchers have obtained detailed maps of Pine Island Glacier, the fastest melting glacier in Antarctica, using radar surveys and snowmobiles. The findings show a surprisingly diverse landscape under the ice, with mountains and deep scour marks that will influence the flow and behavior of the ice.
The NASA GPM satellite collected detailed data on the storm's distribution and intensity of precipitation, revealing intense rain rates over 2 inches per hour. The storm's freezing level and wind gusts were also mapped, indicating heights of up to 5.6 miles and winds greater than 70 mph.
NASA's Global Precipitation Measurement mission observed strong storms and heavy rainfall on Tropical Storm Saola, with rain rates exceeding 66 mm per hour in feeder bands. The storm showed significant structural improvement over the course of several hours, with peak intensity predicted for the following day.
Tropical Storm Saola is being affected by vertical wind shear and displaying powerful convective storms with rainfall rates exceeding 252 mm/h. The storm's height was measured to be above 17.5 km, indicating intense thunderstorms.
Typhoon Lan's powerful thunderstorms are stretching high into the troposphere, fueled by extremely warm ocean waters. The storm is expected to continue intensifying as it moves toward higher latitudes, potentially becoming a powerful typhoon with winds of up to 127mph.
The Global Precipitation Measurement mission found Ophelia's heaviest rainfall south of the center, with rain falling at a rate of almost 3.2 inches per hour. The storm strengthened into a hurricane on Oct. 11, with maximum sustained winds near 90 mph and higher gusts.
Researchers develop magnet-free non-reciprocal components on silicon chips for millimeter-wave frequencies, enabling full-duplex wireless communications, high-speed data transfer for self-driving cars and virtual reality, and transforming 5G networks.
A team led by Professor Steven Rutledge will test the SEA-POL radar in the intertropical convergence zone near the Equator. The radar uses dual polarization technology to measure ocean rainfall and collect detailed information about clouds.
Researchers found that katabatic winds in Antarctica cause sublimation of snowflakes, reducing precipitation and affecting the ice sheet's mass balance. This phenomenon could be worsened by climate change.
Penn State researchers create a low-cost delivery system for probes to collect thermodynamic data in storms, with successful launches into supercell storms. The new system aims to link temperature data with radar wind data to predict tornado formation and improve forecasts.
Hurricane Jose was found to have extremely intense downpours within its powerful convective storms, with rain falling at rates of over 8.9 inches per hour. The GPM satellite's 3D cross-section revealed storm tops reaching altitudes greater than 10.85 miles high.
Research at USC Viterbi School of Engineering has provided evidence for the occurrence of ground ice on protoplanet Vesta, a NASA-sponsored study that utilized bistatic radar techniques. The findings suggest large, smooth areas on Vesta correlated with higher hydrogen concentrations, supporting the presence of ground ice.
The GPM core observatory satellite passed over Irma on September 5, 2017, revealing intense rainfall within the storm's eyewall. The satellite's radar data showed extremely powerful storms reaching altitudes of over 10 miles, with precipitation rates exceeding 10.8 inches per hour.
The UK will build a cutting-edge space weather radar in the Arctic, providing unprecedented detail to understand space weather's effects on technology and society. The EISCAT_3D radar will measure the upper atmosphere and near-Earth space, helping scientists better comprehend the connections between Earth's magnetic field and atmosphere.
The Journal of Applied Remote Sensing has awarded three exceptional articles for their outstanding contributions to remote sensing research and applications. The winning articles focus on ice cloud measurement, a neural-network architecture for scene classification, and through-wall imaging.
The Global Precipitation Measurement mission detected extremely heavy rainfall in Tropical Storm Harvey, with rates reaching almost 5.8 inches per hour. The satellite's radar showed powerful convective storms west of the storm's center, creating a 3D image of the rainfall structure.
NASA analyzed data from Tropical Storm Franklin before it made landfall in east-central Mexico, revealing intense storms with tops reaching heights of over 9.4 miles. The analysis showed heavy rainfall rates of over 2.4 inches per hour in bands around the storm's southwestern side.
A team of researchers led by Daniel Sheldon at the University of Massachusetts Amherst is developing new analytic methods using archived radar scans from the national weather radar network. They plan to estimate bird densities and migration patterns across the US, using machine learning and computer vision techniques.
Tropical Storm Fernanda has weakened due to cooler water, dry air, and southwesterly vertical wind shear. GPM's radar revealed powerful convective storms dropping rain at nearly 7.2 inches per hour in the northwestern quadrant.
NASA's Suomi NPP and GPM satellites observed Tropical Storm Don developing in the North Atlantic, producing moderate to heavy rainfall rates of over 4.4 inches before weakening into a remnant low pressure area.
Heavy rain caused significant flooding in the US Midwest from July 7 to 14, 2017. NASA's satellite data showed parts of Wisconsin, Illinois, Indiana, and Ohio received over 6 inches of rain.
Tropical Storm Eugene is weakening due to cooler sea surface temperatures, with decreasing rainfall rates measured by NASA's Global Precipitation Measurement mission. The storm is expected to degenerate into a remnant low later in July, generating life-threatening surf and rip currents along the US west coast.
Tropical Depression 4 formed over the central Atlantic Ocean on July 6, with heavy showers and rain rates exceeding 44mm/hour. The depression is moving west-northwest at 16mph and is expected to remain a depression for several days before potentially reaching tropical storm status.
New research on Titan's lakes reveals that most waves reach only about 1 centimeter high, making it a serene environment suitable for safe landing of future probes. The study suggests that the winds are likely low, with patches of smooth and rough surfaces detected.
NASA's Global Precipitation Measurement mission tracked Dora's transformation from moderate rainfall to barely any, revealing a rapid dissipation process. The storm's convection was absent in most of its southeastern side, and its low-level center exposed to outside winds
NASA monitored Tropical Storm Cindy using its Aqua satellite's infrared light and GPM satellite's radar, revealing areas of heaviest rainfall and storm tops reaching over 7.2 miles high. The National Hurricane Center warned of life-threatening flash flooding due to heavy rainfall expected in parts of the US Gulf Coast states.
A developing low-pressure area in the Gulf of Mexico is being monitored by NASA's GPM core satellite, which gathered rainfall and storm height information. The system has triggered Tropical Storm Warnings and Watches along the U.S. Gulf Coast, with a potential tropical cyclone expected to reach the coast late Wednesday or Wednesday night.
Researchers from TUM develop new algorithm to reconstruct 4D point clouds of cities from satellite images, enabling early detection of dangers like subsidence and collapse. The method improves precision on a fraction of the radar wavelength, allowing for monitoring of urban growth and development.
NASA tracked Tropical Storm Merbok's rainfall rates and 3D structure before it made landfall east of Hong Kong. The storm showed intense precipitation patterns, with rain falling at a rate of over 57 millimeters per hour in one of its rain bands.
NASA's Global Precipitation Measurement mission detected intense rainfall in southeastern Florida, with rates exceeding 7.5 inches per hour. The GPM core satellite captured detailed images of the storms' vertical structure, showing thunderstorm tops reaching altitudes of over 9 miles.
A new millimeter-wave amplifier developed by Hiroshima University and Mie Fujitsu Semiconductor can operate at a power supply voltage of 0.5 V, significantly reducing energy consumption and increasing reliability. This technology has the potential to improve driver-assistance and self-driving capabilities in vehicles.
Tornadoes spawned severe weather in Florida, Georgia, and the Southeastern US on May 24, 2017, with intense rain showers reaching rates of over 8.5 inches per hour. The GPM satellite's data revealed powerful storms dropping heavy rain over the Gulf of Mexico and reaching heights above 9 miles.
A study analyzing raindrop size distribution data over Tibet and southern China reveals significant microphysical differences in precipitation. The results indicate lower raindrop number concentrations for convective precipitation in Tibet, while larger raindrops show similar characteristics in both regions.
The new radar simulator helps explain how debris scatters and falls through the atmosphere, improving tornado detection and damage estimates. Characterizing debris fields is vital due to flying debris causing most tornado fatalities.
Researchers developed a polarimetric radar time-series simulator to study tornadic debris, improving tornado warning accuracy and damage estimation. The simulator explains the relationship between debris characteristics and tornado dynamics.
Tropical Depression 03W formed on April 24, 2017, with intense convective storms dropping heavy precipitation rates. The GPM satellite revealed tall storm towers with rainfall exceeding 8.5 inches per hour.
NASA identified a subtropical depression in the North Atlantic on April 19, which became the Atlantic's first tropical depression by April 20. Heaviest rainfall rates were found near the low-pressure center, with some storms dropping rain at over 36 mm/hour.
GPM detected intense rainfall in the remnant low pressure area of ex-Tropical Cyclone 11S, with rain rates reaching over 8 inches in some areas. The satellite's radar data showed storm tops reaching heights above 13 km, indicating a strong and dynamic system.
The SnowEx mission aims to determine which combination of sensors works best for collecting global snow-water measurements, critical for understanding and managing freshwater resources. The team will fly multiple airborne sensors over Grand Mesa, Colorado, to evaluate their performance in measuring snowpack properties and SWE.
The Beijing MST Radar detected horizontal wind measurements consistent with those from operational radiosondes, covering a range of 3-25 km. The radar's detection capability was found to be high in the mesosphere-lower thermosphere region, extending up to 120 km during daytime.
Tropical Cyclone Carlos was tracked by NASA as it moved between Madagascar and La Reunion Island in the Southern Indian Ocean, revealing a concentrated storm with heavy rainfall rates up to 120 mm per hour. The storm's maximum sustained winds were near 51.7 mph, with a predicted intensification due to decreasing vertical wind shear.
Researchers aim to overcome traditional antenna limitations with liquid materials, enabling flexible and compact devices. The project will test liquids for stability and frequency transmission across various temperatures.
Scientists have measured mass insect migrations in UK skies, with up to 3.5 trillion insects migrating annually over southern England. The movements are comparable to significant oceanic migrations and provide essential ecological services, including pollination and predation of crop pests.
NASA's Global Precipitation Measurement mission provided detailed images of Tropical Cyclone Vardah's cloud cover and heavy rainfall rates before it made landfall. The storm weakened to a remnant low pressure area over southern India, bringing heavy rainfall warnings for affected regions.