Researchers at Kazan University are developing advanced aerial drones with devices such as detectors and special cameras to enhance geological surveys. The goal is to analyze upper strata of rocks, evaluate hydrocarbon potential, and improve forest planning and soil analysis.
Researchers at the University of South Florida have successfully developed and tested a new seafloor geodesy system that can detect small movements in the Earth's seafloor, potentially improving forecasting of earthquakes and tsunamis. The buoy, anchored on the sea floor with precision GPS, has been producing data on three-dimensional ...
Research findings show that mid-high latitude climate variability significantly impacts the East Asian monsoon, with a synergistic effect on predictability sources. Chinese scientists propose new concepts to explain combined effects of regional climate variabilities on East Asian climate.
Semi-arid regions in northern China have expanded significantly over the past 60 years due to climate change. The drying trend is linked to a weakened East Asian summer monsoon and amplified by land-atmosphere interactions. This expansion increases the risk of desertification, food insecurity and water scarcity.
Dual-polarization radars in China have improved understanding of precipitation microphysics and quantitative precipitation estimation. The data collected from these radars has been used to validate numerical models and improve hydrometeor classification.
New research shows that magnetic hyperthermia therapy is tunable depending on nanoparticle diameter and material composition. The study demonstrates increased tumour absorption rates as particle diameter increases, offering new avenues for targeted cancer treatment.
Researchers found rough topography on the 660-km boundary, rivaling the Rocky Mountains and Appalachians, using data from a massive Bolivian earthquake. This discovery has significant implications for understanding the Earth's formation and function.
A NASA-industry team successfully built and demonstrated a prototype quantum sensor for satellite gravimetry, enabling highly sensitive gravity measurements. The sensor employs atom interferometry, a technique that could revolutionize next-generation geodesy, hydrology, and climate-monitoring missions.
Researchers have demonstrated feasible global quantum communication between high-orbiting satellites and a ground station, exchanging single photons over 20,000km. This milestone experiment proves secure quantum communications on a global scale using the Global Navigation Satellite System.
Researchers from University of Seville analyzed geodynamic behavior of Tenerife island and found millimetric coming together with Gran Canaria, potentially caused by a fault between the two islands. The islands' gravitational sinking has been detected through GPS data since 2004.
Scientists have recorded horizontal and vertical movement of a submerged volcanic flank for the first time using a sound-based underwater geodetic monitoring network. The entire southeastern flank is in motion due to gravity, and a catastrophic collapse could trigger a major tsunami.
New research reveals that warmer springs lead to less plant growth in summer and autumn, contrary to popular belief. This phenomenon has significant implications for carbon uptake and overall climate forecasts, suggesting even more severe consequences of global warming than previously thought.
Researchers at the University of Otago have developed a new approach to achieve centimeter-level precise positioning on smartphones using a combination of signals from four different GNSSs. This technology has the potential to revolutionize applications requiring accurate location information, such as precise car navigation and surveying.
The project aims to develop a new software system for spectral analysis of complex astrophysical objects. The team plans to use this software to model various objects such as single stars and double star systems with relativistic sources of hard radiation.
A new Stanford study has re-examined the relationship between seismic data and earthquake prediction, concluding that foreshocks are unlikely to provide accurate warnings of impending earthquakes. Researchers found no evidence supporting the idea that slow slip or cascade models can be used for predictive purposes.
A team of astronomers found fullerenes in the interstellar medium using data from the VLT telescope. The discovery could lead to breakthroughs in producing these carbon nanostructures, which are currently expensive and produced in limited quantities.
PTB physicists have developed a frequency-doubling unit that can endure transportation and maintain accuracy. The unit is based on a highly stable monolithic enhancement cavity for second harmonic generation, enabling reliable laser light for quantum-optical experiments.
KFU astronomers have made a groundbreaking discovery of an exoplanet orbiting a red giant star HD208897, located 210 light years away from Earth. The planet has a mass of 1.4 Jupiter masses and an orbital period of 353 days, marking the first time in Russian astronomy such a discovery was made using spectroscopic methods.
Researchers warn that US East Coast cities are under threat from more frequent and severe flooding due to the region's slow subsidence into the Atlantic Ocean. Human activities such as groundwater extraction and reservoir creation have accelerated this process, with some areas sinking at a rate of up to three millimeters per year.
Researchers used satellite data to track and map the movement of earth before a landslide, detecting the devastating event in China's Sichuan Province. The team believes their technology can provide early warnings for landslides, potentially saving thousands of lives.
Scientists at the University of Bonn have created a robotic system that uses short laser pulses to weaken weed vitality, eliminating the need for herbicides. The innovative technology has the potential to transform the field of sustainable agriculture.
The 2016 Quadrennial Ozone Symposium presented findings on trends of ozone in the stratosphere and troposphere. Emerging techniques for ozone observations were also discussed, as well as effects of ozone on human health and ecosystems.
LAGEOS, launched in 1976, revolutionized the study of Earth's tectonic plates, rotation, and gravitational field. The satellite achieved accuracies of less than half an inch, enabling precise measurements of plate movement and subtle changes in Earth's center of mass.
The International Terrestrial Reference Frame (ITRF) has been updated by NASA, enabling more detailed studies of global changes in Earth's ocean, ice sheets, land, and atmosphere. Four measurement techniques, including Satellite Laser Ranging and GNSS, contribute to the reference frame.
Researchers at PTB have developed an optical lattice clock with neutral strontium atoms, achieving the best stability worldwide thanks to a newly designed laser system. The clock has reached a fractional frequency instability of 8 E-17 and attains the quantum projection noise limit with as few as 130 atoms.
Researchers at the University of Bonn used satellite data to find that ocean warming expansion contributed an average of 1.4 millimeters per year to sea level rise, more than double the previous estimate of 0.7-1.0 millimeters per year. This could lead to significantly increased risks of storm surges and coastal flooding.
A new gravity dataset covering 73% of Antarctica has been released, providing geoscientists with a tool to investigate the deep structure of the continent. The dataset will aid in studying subglacial geology, tectonic structures and their impact on ice sheet dynamics.
A NASA-developed laser communication system has demonstrated record-breaking data download and upload speeds to the moon, as well as highly precise distance and speed measurements. The Space Optical Communication and Navigation System can provide micrometer-level accuracy over a 622 megabits-per-second laser communication link.
Researchers found that a slight deflection in natural gravity at Greenwich causes the offset. The study's findings confirm that newer technologies like GPS have replaced traditional methods of determining longitude.
The Geological Society of America recognized James W. Head, Jerry X. Mitrovica, Brandon Schmandt, and others for their groundbreaking contributions to geology. The GSA also honored individuals for their public service, outstanding achievements in science, and dedication to the profession.
A new approach breaks down the N-body problem into inertial and local reference frames, allowing for the solution of the Einstein field equations with accuracy. The results have practical applications in astronomy, geodesy, and astrophysics.
The JILA strontium atomic clock has achieved unprecedented precision and stability levels, outperforming previous world records by more than three times. This breakthrough enables the measurement of tiny changes in time and gravity, with applications in advanced communications, positioning technologies, and relativistic geodesy.
Researchers mapped the African continent using satellite data, discovering regions that have received drastically different amounts of rainfall over the past decade. The study found that areas such as the Congo, Nigeria, and Madagascar have become drier, while others like the Sahel zone have become greener due to increased rainfall.
Researchers developed two cryogenically cooled optical lattice clocks that can synchronize to a one part in 2.0 x 10^-18, nearly 1,000 times more precise than current international timekeeping standard. This precision could enable clock-based geodesy and measure the strength of gravitational potential at different locations.
A University of Arizona-led team reports that Iceland's glaciers are melting at an accelerated rate, causing the island's crust to rise rapidly. The study uses GPS measurements to track geological activity and finds a direct connection between glacier loss and uplift.
Researchers analyzed the Chile earthquake of February 2010, finding that fluid pressure in rocks affects earthquake rupture processes. The study revealed that mechanical coupling between plates controls stress build-up and seismic energy release, with fluid pressure variations linked to subduction zone dynamics.
NASA technologists aim to apply emerging atom-optics technology to map variations in Earth's gravity field with picometer-level sensitivity. The technology could chart changes in the gravitational field over time, providing valuable insights into climate change and water cycles.
A joint Australian-German research team has created the highest-resolution maps of Earth's gravity field, showing variations up to 40 percent larger than previously assumed. The new maps were calculated at three billion points and will improve civil engineering projects such as building canals, bridges, and tunnels.
Researchers developed large ring laser gyroscopes six orders of magnitude more sensitive than commercial instruments. These devices can measure the Earth's rotation rate with unprecedented accuracy, capturing momentum exchange between atmosphere, hydrosphere, and lithosphere.
Researchers at NIST have successfully transferred ultraprecise time signals through open air with unprecedented precision, equivalent to the world's best atomic clocks. The demonstration uses wireless optical channels and has potential applications in geodesy, satellite navigation, and other fields.
A new study using Gravity Recovery and Climate Experiment (GRACE) satellite data has re-calibrated the scales to more accurately calculate ice mass loss. The research found that Antarctica overall is contributing less to sea-level rise than previously thought, with West Antarctica losing mass at an accelerated rate.
Scientists add an extra second to the UTC time standard to account for Earth's rotating day lengthening due to tidal forces. The 35th leap second is added to keep UTC within 0.9 seconds of UT1, which relies on precise VLBI measurements.
The University of Nevada, Reno's GPS technology will be used by NASA to monitor strong earthquakes along the West Coast. The system can detect changes in ground positions greater than 10 centimeters in real-time.
Barbara Romanowicz, a renowned seismologist and UC Berkeley professor, has made groundbreaking contributions to global seismology. Her research has been instrumental in advancing body-wave studies of the inner core and normal-mode studies of the Earth's density distribution.
Researchers will monitor the Cascadia subduction zone's strain buildup using a new seafloor geodesy observatory. This data will aid in modeling fault slip and predicting tsunami heights, ultimately informing city planners and emergency response managers.
The Earth's rotational axis fluctuates due to gravitational forces and atmospheric pressure. By building a ring laser at the Wettzell observatory, scientists have successfully captured these movements, corroborating Chandler and annual wobble measurements.
Louis Lanzerotti, distinguished professor of physics at NJIT, has been selected as the 2011 William Bowie Medalist by the American Geophysical Union. He is being honored for his decades-long contributions to research on space plasmas and geophysics.
An international team of experts investigates the changing mass of the Antarctic Ice Sheet using satellite observations, GPS data, and climate models. They aim to determine the evolution of the ice sheet's mass over the last 20 years and identify regions of change.
Decreasing autumn and winter rainfall over southern Australia is attributed to a 50-year decrease in storm intensity. The trend is linked to reductions in the strength of the mid-latitude jet stream and changes in atmospheric temperatures.
Researchers confirm that volcanoes in Western Victoria and South Australia are due for an eruption, with a recurrence rate of 2,000 years.
A new Australian study found a 40% decrease in summer snowfall over the last 20 years, leading to faster Arctic ice melt. The reduction in snow cover exposes sea ice to sunlight, increasing its melting rate and causing it to become thinner and less extensive.
Physicists at NIST have demonstrated a super-stable laser operating in a minivan, showing its potential for field use in geodesy, hydrology and space-based physics experiments. The laser was tested with the vehicle stationary and moving at speeds of less than 1 meter per second, remaining stable enough for some applications.
Tim Dixon received the 2010 George P. Woollard Award for his groundbreaking research in space geodesy, which has paved the way for studying earthquake hazard, volcanic processes, and climate change. His work has also contributed to understanding subsidence in Mexico City and the melting of the Greenland ice cap.
The Alps are constantly rising in height, despite being eroded at the same rate, due to climate-driven uplift. Researchers used rare isotopes to prove this phenomenon, showing that mountains erode concurrently with their growth.
New research from the University of Arizona found that slowly moving faults, like the Alto Tiberina in Italy, can help prevent large earthquakes. The study used geodesy to measure rock movements and revealed that the fault is actively slipping at a rate of approximately one-tenth of an inch per year.
Year 10 students from Hadden Park High School in Nottingham are using advanced GPS technology to map fragments of heathland at Sherwood Pines Forest Park. The project aims to raise awareness of heathland and develop habitat corridors to protect species affected by climate change.
The BSSA special issue on rotational seismology discusses research on rotational ground motions, including theory, instrumentation, observation, and interpretation. Rotational effects from earthquakes have been observed for centuries, but were ignored due to practical difficulties in measuring them.
Scientists have discovered a significant upward bulge at the equator and downward bulge at the poles in the Earth's gravity field. The observed changes are counteracting the gravitational effects of post-glacial rebound, leading researchers to investigate potential causes such as climate change or ocean circulation.
Walter Munk, a leading figure in physical oceanography, is being honored with the inaugural Prince Albert I Medal for his decades-long research on ocean currents, tides, and climate change. His work has significantly improved our understanding of the oceans and their impact on global warming.