Articles tagged with Radar
Tropical Depression Twenty Five formed east of Guam on October 13, with GPM detecting moderate to heavy rainfall. The depression strengthened into a tropical storm, Tropical Storm Champi, on October 14, forecasted to peak in intensity near 110 knots.
Typhoon Dujuan made landfall in southeastern China on September 29, with maximum sustained winds of 75 knots (86 mph). The storm is forecast to weaken quickly as it moves northward ahead of an approaching area of low pressure.
GPM measured rainfall rates at 122 mm/h, revealing intense rain showers and storm tops reaching 15 km. The tropical depression turned northwest late on September 25, with expected weakening over the next two days.
The GPM mission satellite detected extremely high-altitude thunderstorms and heavy rainfall within Tropical Storm Ida. The storm's powerful convective storms reached altitudes above 17 km, indicating potential intensification.
Tropical Storm Etau drenched central Japan with intense rainfall, with GPM satellite measurements showing up to 88 mm/h rain rates. The storm's remnants are expected to transition northwestward off the Japanese coast.
NASA's GPM mission detected intense rainfall near the center of Hurricane Fred on August 30, suggesting rapid intensification. The storm's 'hot towers' reached heights of up to 10 miles, releasing latent heat and fueling its growth into a hurricane.
The University of Oklahoma is developing a faster, more advanced imaging radar to provide unprecedented resolution and flexibility in storm surveillance. The new system will enable scientists to study tornadoes, hurricanes, lightning, and other phenomena on an incredible time and spatial scale.
CloudSat's cloud profiling radar captured the sloping nature of Super Typhoon Atsani's eyewall, revealing heavy rainfall and powerful thunderstorms. The satellite also detected deep convective cloud tops northwest and southeast of the eye, with winds extending over 60 nautical miles from the center.
Typhoon Soudelor's heavy rainfall and powerful feeder bands were detected by NASA's GPM satellite, showing a strong impact on the storm's structure. The typhoon reached maximum sustained winds near 90 knots and is expected to intensify again before making landfall in Taiwan.
Typhoon Soudelor was characterized by intense rainfall and towering thunderstorms. NASA satellites detected sustained winds of up to 121 mph near the storm's center.
Super Typhoon Soudelor showed extreme rainfall rates with over 58 mm/hour on its southern side, as measured by NASA's GPM core satellite. The storm is predicted to intensify before making landfall in eastern China.
NASA's RapidScat instrument and Europe's METOP satellite detected tropical-storm-force winds in the northwest quadrant of Cyclone Enrique. The storm was re-classified as a tropical storm on July 17, with maximum sustained winds near 40 mph (65 kph) and higher gusts.
Typhoon Nangka is moving north towards mainland Japan, with NASA satellites tracking its progression. The storm's maximum sustained winds decreased from 65 knots to 75 mph/120 kph, making it a minimal category 1 typhoon.
Two University of Oklahoma doctoral students have developed a technique to forecast the orientation behavior of birds as they migrate through the atmosphere at night using the nation's weather radar network. The approach has discovered broad-scale flight orientation of nocturnal migrant birds, offering a promising development for biolo...
NASA satellites tracked Tropical Cyclone Ashobaa's powerful storms, with rainfall rates exceeding 70.5 mm per hour and storm heights reaching up to 21 km. The cyclone is strengthening despite high wind shear, but is expected to weaken after landfall on June 12.
Tropical cyclone Ashobaa formed in the Arabian Sea, with NASA's GPM core satellite providing 3-D rainfall data. The storm is intensifying, with powerful thunderstorms near its center, and is expected to make landfall on June 12.
A NASA spacecraft will use radar equipment developed in Antarctica to scan Europa for potential water plumes and habitable conditions, driven by evidence of an ocean beneath the thick ice cover.
Typhoon Dolphin has intensified over the past five days and is now heading westward towards Guam. The satellite data from GPM, AIRS, and RapidScat reveal the storm's organized spiral pattern and exceptionally cold upper atmospheric temperatures.
Debris from the US DMSP F13 satellite explosion poses a threat to other spacecraft with orbits different from its own. A new technique called CiELO was developed to assess collision risks from small-sized debris, revealing a peak in risk at altitudes just below the explosion location.
A new system combining GPS and radar measures snow properties on slopes, enabling continuous and non-destructive monitoring of snow volumes and liquid water content. The method promises to enhance forecasting of avalanches and spring floods in Alpine areas.
The University of Oklahoma and Nanowave Technologies will establish a research group to develop next-generation electromagnetic sensors. The collaboration aims to optimize hardware solutions for customers in the airborne weather radar and satellite communications markets.
University of Oklahoma engineers Hjalti Sigmarsson and Jessica Ruyle have received prestigious Young Investigator awards for their cutting-edge research on novel radar materials and advanced antenna designs.
Researchers have calculated the size of Mars' glaciers using radar observations and ice flow modeling. The ice is found in belts around the planet, between latitudes 300-500, and is equivalent to covering the entire surface with 1.1 meters of ice.
Super Typhoon Maysak has reached Category 5 hurricane status with maximum sustained winds of near 140 knots (161.1 mph). The storm is generating heavy rainfall and high thunderstorms in the Pacific Ocean.
Tropical Storm Haliba was sandwiched between La Reunion and Mauritius in NASA satellite imagery, with the bulk of its clouds pushed east by westerly vertical wind shear. The heaviest rainfall, exceeding 7.1 inches per hour, was detected northeast of Reunion Island.
Scientists used bistatic radar to create high-resolution images of Venus' surface from Earth, revealing features like mountains, craters, and volcanoes. The technique enables comparison of images taken at different periods, helping detect signs of active volcanism or geologic processes.
Researchers have developed a hybrid quantum radar system that uses microwave-optical entanglement to detect cancer cells and stealth aircraft. The device operates at lower energies than conventional systems, enabling long-term potential for non-invasive medical applications such as NMR scans.
The TRMM Precipitation Radar observed Marcia's rapid intensification to category 5 before its expected landfall in Queensland, Australia. The satellite's data revealed a powerful hot tower at the storm's eyewall, which is associated with increased intensification.
The SciNet search engine outperforms current ones by displaying keywords related to user searches in a topic radar, enabling faster and more diverse search results. This technology helps people find information more efficiently, even when they're unsure of their search query.
Tropical Storm Mekkhala's heaviest precipitation was found on its western side, with powerful convective thunderstorms dropping rain at over 2.8 inches per hour. The storm's maximum sustained winds were near 57.4 mph on January 16, with public storm warning signals raised in the Philippines.
Tropical Storm Jangmi is expected to bring strong winds and heavy rainfall to the Philippines as it moves westward through the Sulu Sea. NASA's Aqua satellite detected the storm on December 29, revealing a tightly wrapped low-level circulation centered near 10.0 north latitude and 124.2 east longitude.
Researchers tracked magma flow through cracks in Iceland's Vatnajökull ice cap, forming a new layer of crust as the Bárðarbunga volcano erupted. The study found 'ice cauldrons' and subsidence within the caldera, providing insights into the Earth's crust formation and plate tectonics.
The NUP/UPNA researchers developed a smart structure based on metamaterials to improve the performance of radar antennae, addressing blind spot mitigation. Their metaradome improves beam direction without modifying the prototype antenna.
The study reveals that the Amundsen Sea Embayment in West Antarctica is losing ice at an incredible rate, with the total amount of loss averaging 83 gigatons per year. This is equivalent to Mt. Everest's worth of water weight lost every two years over the past 21 years.
The Tropical Rainfall Measuring Mission (TRMM) will cease science operations in April 2015, ending 17 years of rainfall and storm monitoring. The satellite's instruments, including the Precipitation Radar, have provided critical insights into precipitation patterns and their impact on climate, weather, and natural disasters.
Researchers Elise Harrington and Allan Treiman re-analyzed twenty-year-old spacecraft data to study Venus's surface. They found radio waves reflected differently at different elevations, creating a pattern of brightening with increasing elevation, followed by 'radio black' spots at the highest locations.
A team of researchers led by D.J. Seo will integrate data from advanced weather radar systems, wireless sensors, and crowdsourced cell phone data to create high-resolution models of urban water systems. The project aims to produce a suite of products for flash flood forecasting, water quality monitoring, and storm management.
Researchers have produced detailed maps of bedrock beneath glaciers in Greenland and Antarctica with NASA's support, helping to project future changes to ice sheets and sea level. The data will aid computer models used for glacier projection.
Post-tropical storm Norbert generated drenching thunderstorms over Arizona, with TRMM satellite data showing rainfall rates of over 2 inches per hour. The moisture from Norbert caused flooding over inland areas of southern California and led to a state of emergency in Arizona.
The Fraunhofer Institute is showcasing its Virtual Maritime Interior Configurator, a tool that enables realistic planning of ship interiors without physical mock-ups. The company is also introducing the Crew Compliance Organizer software to simplify crew management and reduce regulatory violations. Additionally, Fraunhofer will display...
The Integrated Precipitation and Hydrology Experiment demonstrated two new radar instruments, improving rainfall measurement. The High-altitude Wind and Rain Profiler and ER-2 X-Band Radar provided a unique capability by capturing how cloud droplets and raindrops move relative to each other.
TRMM satellite data revealed extreme rainfall rates of almost 182 mm per hour in Hurricane Iselle's eye wall, making it a category four hurricane at the time. The storm is expected to weaken as it heads westward into the Central Pacific Ocean and may make landfall over the Big Island as a tropical storm.
Tropical Storm Bertha is experiencing heavy rainfall northeast of the center due to strong vertical wind shear. The storm's interaction with upper-level troughs will continue to limit its development and strengthening.
Tropical Storm Halong moved northwest of Guam, with heavy rain falling over the island and thunderstorms reaching heights of over 10.4 miles near its center.
Hurricane Arthur made landfall in North Carolina on July 3, bringing powerful 'hot towers' of thunderstorms that indicate strengthening. The TRMM satellite spotted these storms before landfall, providing a 3D view of the hurricane's structure.
Scientists observe a mysterious geologic object on Ligeia Mare, the second-largest sea on Saturn's moon Titan, which may be the first observation of dynamic geological processes. The 'Magic Island' is thought to result from changing seasons and could provide insights into Titan's liquid environments.
The Sopcawind project develops a multidisciplinary database to analyze the impact of wind farms on telecommunications systems, ensuring fluid design processes and minimizing potential interference. The tool facilitates wind farm development while preserving existing telecommunications systems.
NASA's Aqua and TRMM satellites captured data on System 92B, showing heavy rainfall and powerful convective storms in the Bay of Bengal. The system is moving north at 5 knots and has a high potential for developing into a significant tropical cyclone within 24 hours.
Researchers found that 46% of deforming volcanoes erupted, while 94% of non-deforming ones did not. The study uses satellite radar to identify unrest on a regional or global scale, targeting ground-based monitoring.
Researchers successfully tested a compact radar system on a small Unmanned Aircraft System to map glacial topography beneath rapidly moving glaciers. The technology promises to make high-resolution ice measurements more accessible to the research community.
Tropical Cyclone Hellen rapidly weakened after hitting Madagascar, but its remnants showed signs of life in the Mozambique Channel. TRMM satellite data revealed strong convective thunderstorms with heavy rainfall rates up to 75 mm/h, indicating potential regenerating activity.
Tropical Cyclone Hellen's heavy rain rates were detected by NASA's TRMM satellite, with rainfall rates reaching over 44 mm/hour near its eye. The storm's remnants re-emerged in the Mozambique Channel, posing a potential regrowth threat.
The TRMM satellite has been monitoring the persistent remnants of Tropical Cyclone Gillian since its formation in March 2014. The storm's coherent remnants have moved westward over 2,700 km and are re-organizing in the Southern Indian Ocean.
New radar measurements suggest Ligeia Mare on Titan is eerily still, with surface waves smaller than one millimeter. The solid terrain surrounding the sea may be composed of solid organic materials instead of frozen water, similar to Earth's early evolution.
IceBridge began its 2014 Arctic campaign with two sea ice surveys north of Greenland, focusing on changes in sea ice elevation and thickness. The mission aims to collect more data, including cross-basin surveys over the Arctic Ocean and flights over the Beaufort and Chukchi seas.
The University of Oklahoma's new radar system, part of the Dallas-Fort Worth Urban Demonstration Network, aims to improve severe weather warning operations. The network will use data from local, state, and federal agencies, as well as private sector sources, to provide real-time analysis and forecasts.
Researchers discovered a new aquifer in the Greenland Ice Sheet that holds liquid water all year long, covering 27,000 square miles. This find is crucial for understanding the contribution of snowmelt and ice melt to rising sea levels.
IceBridge collected data on many facets of Antarctic land and sea ice, including ice elevation and thickness. The mission also took measurements of sea ice in the Ross Sea, an area with comparatively little attention compared to other parts of the Southern Ocean.
The NASA airborne mission is using a low-frequency radar instrument to map the sub-glacial bedrock hidden beneath thick ice sheets. The Multichannel Coherent Radar Depth Sounder (MCoRDS) measures ice thickness and maps sub-ice rock by sending radar waves down through polar ice.
NASA's TRMM satellite monitored Tropical Storm Melissa's transition to a tropical storm, revealing intense rainfall rates of up to 55 mm/hour. The satellite's Precipitation Radar data also showed the storm's structure, including towering convection near its center.