A study estimates the cloud water path of mature tropical cyclones by analyzing the correlation between cloud microphysical properties and precipitation intensity. The results show that a notable sigmoid function can be used to fit the cloud water path and near-surface rain rate, providing a new way to estimate cloud water path in models.
A machine learning algorithm developed by Helmholtz Centre for Environmental Research - UFZ can identify 19 different crop types with an accuracy of 88%. The algorithm takes into account the temporal sequence of cloud-free observations at pixel level and is not dependent on large-scale cloud-free scenes.
A new method called SCOPE estimates three properties of clouds that determine the amount of sunlight reaching the Earth's surface. The accuracy of the estimated cloud optical properties was evaluated using one year of data from 2018 for measurements taken at seven ground-based locations.
A new study published in Nature's journal Climate and Atmospheric Science reveals that adding sea-salt can dampen the effect of clouds becoming brighter, which could impact climate change predictions. The research found that pollution-induced changes to cloud reflectance are a major uncertainty in predicting future climate change.
Tropical Cyclone Irondro shows strongest storms west of the center, with coldest cloud top temperatures as cold as minus 80 degrees Fahrenheit. NASA's satellite data indicates a high potential for heavy rain due to these strong storm systems.
New research measures cloud changes caused by ship pollution, revealing a measurable regional impact on global temperatures. The study found that globally, cloud changes due to industrial pollution block 1 Watt of solar energy per square meter.
Tropical Cyclone Herold's strength dwindled as it moved into high wind shear and cooler sea surface temperatures. The system's low-level circulation center was partially exposed, with minimal strong convection, according to NASA's Aqua satellite imagery.
NASA's Aqua satellite gathered data on Tropical Cyclone Herold, showing wind shear weakened the storm and pushed strongest storms away from its center. The study found coldest cloud top temperatures, indicating potential for heavy rainfall.
Tropical Cyclone 23P formed on March 14 and intensified into a tropical storm, later renamed Gretel. The storm's center was located near latitude 26.6 degrees south and longitude 169.7 degrees east, about 675 nautical miles north-northwest of Auckland, New Zealand.
Ex-tropical cyclone Esther's remnant clouds and storms are being tracked by NASA's Aqua satellite over the Barkly Region of Australia's Northern Territory. The region has experienced widespread rainfall totals of 50 to 150 mm, leading to localized flooding and areas of inundation.
Researchers used radar and tools to accurately measure the volume of snow produced through cloud seeding. The study found that three cloud seeding events in Idaho's Payette Basin produced a total of about 282 Olympic-sized swimming pools worth of water.
Researchers have developed a method to accurately measure the volume of snow produced through cloud seeding using radar and other tools. The study found that cloud seeding produced about 282 Olympic-sized swimming pools worth of water in the form of snow, with snow falling from clouds for approximately 67 minutes.
University of Wyoming researchers contributed to the first quantifiable observation of cloud seeding using radar and gauges, which demonstrated significant snowfall increase in a western U.S. region. The study, dubbed SNOWIE, used modern technology to track seeding plumes and isolate snow added through cloud seeding.
Tropical Storm Gabekile rapidly intensified from hurricane-force winds to weakening due to strong northwesterly wind shear, according to NASA's Aqua satellite imagery. Wind shear disrupts the storm's rotation by pushing it apart at different altitudes.
Wind shear, a measure of changing winds with altitude, affects Tropical Cyclone Uesi's rotation and strength. The NASA Aqua satellite revealed this impact, showing clouds being pushed to the southeast of the center of circulation.
Scientists report that small altitude changes in flight paths could cut the climate impact of aircraft contrails, reducing warming effects by up to 59.3%. By targeting high-warming flights and making minor adjustments, contrail impact could be reduced by 91.8% with cleaner engines.
Tropical Cyclone Cristina was analyzed by NASA's Aqua satellite, revealing high concentrations of water vapor and cold cloud top temperatures around the center. These conditions suggest a powerful storm with the capability to produce heavy rainfall.
Tropical Cyclone Diane formed on January 24 and quickly weakened due to wind shear, dissipating by January 27. The storm's clouds were blown southwest of the weak center, revealing its final state.
Researchers develop new method to predict rapid intensification in tropical cyclones using the Synchronization Index, which measures vertical structure coherence. This index helps forecasters monitor vortex structure and understand processes influencing rapid intensification.
Tropical Cyclone Tino's intense water vapor content and low cloud top temperatures indicate a high risk of heavy rainfall and strong winds. NASA's Aqua satellite imagery provides critical data for meteorologists to track the storm's movement and potential impact on Fiji and surrounding islands.
Tropical Cyclone Claudia was dissipating in the Southern Indian Ocean when NASA's Terra satellite captured its final image. The storm's maximum sustained winds had decreased to 35 knots, and strong northeasterly wind shear had pushed clouds away from its center.
Satellite data revealed that Tropical Cyclone Claudia was weakening, with stronger storms located on the western side. Cloud top temperatures around -63 degrees Fahrenheit indicate strong storms capable of heavy rain, but are now warming due to reduced air uplift.
Researchers found that greater lead occurrence is associated with fewer low-level clouds during winter in the Arctic. The study revealed that rapidly freezing leads can shut off moisture supply and accelerate sea ice freezing.
Tropical Cyclone Blake has a high potential for creating heavy rain due to its cloud top temperatures being as cold as -81 degrees Fahrenheit. The storm is currently located north of Western Australia and is forecasted to make landfall east of Port Hedland within the next 24 hours.
NASA's Suomi NPP satellite provided a visible image of Tropical Cyclone Sarai, showing a weaker storm near Tonga. The storm is rapidly weakening and dissipating under adverse atmospheric conditions.
NASA analyzed Tropical Storm Sarai's cloud top temperatures to determine its strength and identify areas of heavy rain potential. The analysis showed coldest cloud top temperatures as cold as -81 degrees Celsius, indicating strong storms capable of creating heavy rain.
Tropical Cyclone Phanfone, also known as Ursula in the Philippines, exhibited high water vapor concentrations and cold cloud top temperatures around its center. These conditions indicate a strong storm with the potential to produce heavy rainfall.
Tropical Storm Belna weakened after landfall in Madagascar, with NASA's Aqua satellite finding a smaller area of strong storms. The storm's cloud top temperatures indicated strong storms capable of generating heavy rain, but the area of intense storms diminished over time.
Cold cloud top temperatures detected by NASA's Aqua satellite suggest that Tropical Storm Belna has the potential to generate heavy rainfall. The storm made landfall on Dec. 9 in Madagascar with strong winds and rainfall observed.
The study reviews a new method called emergent constraints, which uses current climate information to constrain future climate evolution. This approach aims to reduce uncertainties in climate sensitivity and improve the accuracy of climate model projections.
Researchers clarify the process by which gamma-ray flashes are generated from thunderstorms, discovering they can produce an ultraviolet emission known as an Elve. The findings reveal that high-electric fields produced just prior to a lightning bolt within the thunderstorm cloud trigger the TGF.
NASA used its Aqua satellite to gather water vapor data on Tropical Cyclone Belna, finding highest concentrations of water vapor and coldest cloud top temperatures. This analysis helps forecasters understand the storm's potential for heavy rainfall and track its movement towards Madagascar.
A new study found that megadroughts in the Andes led to widespread deforestation and maize farming in the Laguna de los Cóndores region. However, as climate conditions normalized, forests reclaimed the area, and sediment samples showed an improvement in water quality.
Tropical Storm 07A is experiencing significant wind shear, causing powerful thunderstorms with cold cloud top temperatures. The storm is expected to weaken into a depression by December 5 and dissipate.
Tropical Storm 06A is maintaining its strength in the Arabian Sea, with powerful storms indicating heavy rainfall potential. The storm is expected to make landfall in east central Somalia late on Dec. 6.
Typhoon Kammuri made landfall in the Philippines on December 2, bringing maximum sustained winds of 115 knots. NASA-NOAA's Suomi NPP satellite provided infrared and nighttime imagery of the storm, revealing a thick band of powerful thunderstorms around its eye.
Tropical Storm 07A develops with very high and powerful storms, with cloud top temperatures as cold as minus 80 degrees Fahrenheit. The storm is expected to move northwest and dissipate in a day or so, posing no significant threat to Mumbai, India.
Typhoon Kammuri continues to strengthen with a noticeable increase in its central dense overcast (CDO), indicating some strengthening of the storm. The storm's maximum sustained winds have increased to 85 mph, and it is forecast to make landfall in the central and northern Philippines on Dec. 3.
Tropical Storm Kammuri's powerful storms have been detected by NASA-NOAA's Suomi NPP satellite, with cloud top temperatures reaching minus 80 degrees Fahrenheit. The storm is forecast to intensify and potentially become a typhoon, posing a threat to Guam and the Northern Marianas.
NASA is sending five airborne campaigns across the US to investigate fundamental processes that impact human lives and the environment. These campaigns will conduct science on high-altitude aircraft, autonomous gliders, and floats to study snowstorms, ocean eddies, and river deltas.
NASA used infrared data from its Aqua satellite to identify the storm's strongest areas, where coldest cloud top temperatures were recorded. The research indicates that these cold temperatures are indicative of strong storms capable of producing heavy rain.
Tropical Cyclone Rita formed on Nov. 24 as a tropical storm and was analyzed by NASA's Aqua satellite using infrared light for temperature data. MODIS found powerful thunderstorms circling its center with cold cloud top temperatures indicating strong storms.
Tropical Storm Sebastian showed very high, powerful storms with cold cloud top temperatures in the southwestern quadrant, indicating potential for heavy rainfall. Wind shear prevented the storm from intensifying, leading to gradual weakening and eventual dissipation.
Tropical Storm Sebastien is being pushed towards becoming a hurricane due to strong winds and low pressure. NASA's Terra satellite has captured images showing the storm's clouds and showers have been displaced by wind shear, weakening its rotation.
A team of researchers from TROPOS and Universities in Germany, Austria, and Finland have discovered a new reaction pathway for dimethyl sulfide, challenging current knowledge on its degradation. This finding has significant implications for our understanding of the Earth's sulfur cycle and climate modeling.
NASA's analysis of Typhoon Kalmaegi's cloud top temperatures revealed the strongest storms are located over Luzon and northern Philippines. Heavy rain is expected due to these strong storm systems, posing a threat to the region.
NASA's Aqua satellite detected highest water vapor concentrations and coldest cloud top temperatures north and west of Kalmaegi's center. This analysis provides critical data on the storm's development potential and intensity.
The Suomi NPP satellite identified strong storms in Tropical Cyclone Kalmaegi using infrared light, with cloud top temperatures as cold as minus 80 degrees Fahrenheit. Wind shear is preventing the storm from consolidating, allowing it to maintain a tropical depression status.
NASA's AIRS instrument detected coldest cloud top temperatures as cold as minus 63 degrees Fahrenheit around Fengshen's center, suggesting a strong storm. Forecasters expect Fengshen to continue strengthening and reach typhoon status, with maximum sustained winds near 65 mph.
Tropical Storm Fengshen strengthened in the Northwestern Pacific Ocean, with NASA's Terra satellite detecting very high-powered storms and cold cloud top temperatures circling the center. Infrared data indicates strong storms capable of generating heavy rainfall.
Researchers at Penn State combined geostationary satellites and traditional weather radar to create a system that produces the best forecasts for severe thunderstorms. The study found that assimilating satellite and radar data simultaneously leads to the most accurate predictions, with warning times increased by up to 40 minutes.
Researchers from Leibniz Institute for Tropospheric Research found that vertical air motions increase ice formation in mixed-phase clouds. This correlation has important implications for understanding the water cycle and predicting precipitation.
The MODIS instrument gathered high concentrations of water vapor and coldest cloud top temperatures around -70 degrees Fahrenheit in tropical cyclones. This data helps forecasters understand the storm's intensity and potential to produce heavy rainfall.
A thick ring of powerful storms surrounds the eye of Super Typhoon Halong, indicating strong potential for heavy rainfall. The storm's peak intensity has been reached and it is expected to weaken after today.
Researchers used satellite tracking to show how strongly ships affect clouds, which can influence climate. The study found that restricting sulphur in fuels led to a significant decrease in ship tracks and their impact on clouds.
Typhoon Halong strengthened in the Northwestern Pacific Ocean with NASA's Terra satellite analysis, showing strong storms with extremely cold cloud top temperatures. The storm is expected to move northwest and strengthen further over open waters.
Tropical Cyclone Maha was a powerful storm with the potential to generate heavy rainfall, as revealed by NASA's infrared analysis. The storm had maximum sustained winds near 100 knots and circling strongest storms at cloud top temperatures of minus 80 degrees Fahrenheit.
NASA's Aqua satellite analyzed cloud top temperatures to identify the strongest storms in Tropical Cyclone Maha, indicating a high risk of heavy rain over Lakshadweep Islands. The storm is forecast to move northwest and turn west into the central Arabian Sea.
Rebekah developed as a subtropical storm on Halloween, with temperatures reaching minus 50 degrees Fahrenheit around its center. The storm is moving east-northeast at 18 mph and is expected to weaken into a post-tropical cyclone by Nov 1.
NASA's Aqua satellite observed Subtropical Storm Rebekah on October 31, 2019, providing temperature information and cloud top temperatures. The strongest storms had coldest cloud tops as cold as minus 50 degrees Fahrenheit.