Infrared imagery is gathered by the Atmospheric Infrared Sounder (AIRS) instrument that flies on NASA's Aqua satellite. It provides valuable information to forecast organizations such as the Joint Typhoon Warning Center and National Hurricane Center about cloud temperatures and heights and sea-surface temperatures.
This infrared image of Tropical Storm Sonca was captured on Sept. 14 at 10:41 p.m. EDT. The purple area around the center of circulation indicates the coldest, highest cloud heights, where the heaviest rain was occurring. Satellite data also shows Sonca has taken on the signature "comma" shape of a tropical storm. Credit: NASA JPL, Ed Olsen
Infrared data provides valuable clues about how a tropical cyclone is going to behave. High, cold clouds with temperatures colder than -63 Fahrenheit (-52 Celsius) within a tropical cyclone tell meteorologists that convection (rising air that forms thunderstorms that power a tropical cyclone) is strong, and further strengthening of the entire tropical cyclone is likely. When NASA satellites show that cloud temperatures are warming, it means there is less strength or uplift in the air to help form powerful thunderstorms.
When NASA's Aqua satellite flew over Tropical Storm Sonca on Sept. 14 at 10:41 p.m. EDT the AIRS instrument gathered that infrared temperature data about the thunderstorms that make up the storm. AIRS showed a large area around the center of circulation where the coldest, highest cloud heights, where the heaviest rain was occurring. Satellite data also showed Sonca has taken on the signature "comma" shape of a tropical storm.
Tropical Storm Sonca's maximum sustained winds are near 35 knots (40 mph) so it's just over the threshold of being a tropical storm. The storm is over 120 miles in diameter with tropical storm-force wind gusts out 60 miles from the center. Sonca is approximately 760 nautical miles east of the island of Iwo To, Japan and has tracked north-northwestward at 9 knots (10 mph).
Forecasters at the Joint Typhoon Warning Center are monitoring the progress of Sonca and using the infrared data that AIRS provides in addition data from other NASA satellites. Sonca is currently forecast to pass to the northeast of Chichi Jima, Japan over the weekend and bring gusty winds, heavy surf and rainfall to the island.
Text credit: Rob Gutro, NASA's Goddard Space Flight Center, Greenbelt, Md.
Rob Gutro | EurekAlert!
Jacobs University supports new mapping of Mars, Mercury and the Moon
21.03.2018 | Jacobs University Bremen gGmbH
Thawing permafrost produces more methane than expected
20.03.2018 | GFZ GeoForschungsZentrum Potsdam, Helmholtz Centre
In just a few weeks from now, the Chinese space station Tiangong-1 will re-enter the Earth's atmosphere where it will to a large extent burn up. It is possible that some debris will reach the Earth's surface. Tiangong-1 is orbiting the Earth uncontrolled at a speed of approx. 29,000 km/h.Currently the prognosis relating to the time of impact currently lies within a window of several days. The scientists at Fraunhofer FHR have already been monitoring Tiangong-1 for a number of weeks with their TIRA system, one of the most powerful space observation radars in the world, with a view to supporting the German Space Situational Awareness Center and the ESA with their re-entry forecasts.
Following the loss of radio contact with Tiangong-1 in 2016 and due to the low orbital height, it is now inevitable that the Chinese space station will...
Fraunhofer Institute for Organic Electronics, Electron Beam and Plasma Technology FEP, provider of research and development services for OLED lighting solutions, announces the founding of the “OLED Licht Forum” and presents latest OLED design and lighting solutions during light+building, from March 18th – 23rd, 2018 in Frankfurt a.M./Germany, at booth no. F91 in Hall 4.0.
They are united in their passion for OLED (organic light emitting diodes) lighting with all of its unique facets and application possibilities. Thus experts in...
A new scenario seeking to explain how Mars' putative oceans came and went over the last 4 billion years implies that the oceans formed several hundred million...
For the first time, an interdisciplinary team from the University of Basel has succeeded in integrating artificial organelles into the cells of live zebrafish embryos. This innovative approach using artificial organelles as cellular implants offers new potential in treating a range of diseases, as the authors report in an article published in Nature Communications.
In the cells of higher organisms, organelles such as the nucleus or mitochondria perform a range of complex functions necessary for life. In the networks of...
Animal photoreceptors capture light with photopigments. Researchers from the University of Göttingen have now discovered that these photopigments fulfill an...
19.03.2018 | Event News
16.03.2018 | Event News
13.03.2018 | Event News
21.03.2018 | Physics and Astronomy
21.03.2018 | Materials Sciences
21.03.2018 | Life Sciences