NASA and NOAA recently got three different views of former tropical cyclone Kate from space. The Global Precipitation Measurement mission or GPM core satellite saw heavy rainfall as Kate was transitioning into an extra-tropical cyclone on Nov. 11. The next day, NASA's RapidScat saw the system's tropical-storm force winds, and on Nov. 13, NOAA's GOES-East satellite spotted the former tropical storm in the Northern Atlantic.
Kate became the twelfth named tropical cyclone of the of the 2015 Atlantic hurricane season when it formed near the southeastern Bahamas on Sunday November 8, 2015. Kate re-curved toward the northeast and moved harmlessly over the open waters of the Atlantic. Kate's intensity peaked on November 11, 2015 with winds of about 65 knots making it a category one hurricane on the Saffir-Simpson Hurricane.
The GPM core observatory satellite flew above Kate on November 11, 2015 at 0926 UTC (4:26 a.m. EST) capturing data. Kate's maximum sustained winds were estimated at about 60 knots (69 mph) at that time making it a strong tropical storm.
GPM's Dual-Frequency Precipitation Radar (DPR) sliced through Kate's western side and found that intense storms within feeder bands there were dropping rain at a rate of over 80 mm (3.1 inches) per hour. A 3-D cross section by GPM's Radar (DPR Ku Band) through Kate's weak eye showed intense storms swirling around the northern side of the tropical cyclone. GPM is managed by both NASA and the Japan Aerospace Exploration Agency.
Kate merged with a baroclinic zone over the north Atlantic and became an extra-tropical cyclone on November 12, 2015. A baroclinic zone is a region in which a temperature gradient exists on a constant pressure surface. Baroclinic zones are favored areas for strengthening and weakening system.
On Nov. 12, the RapidScat instrument that flies aboard the International Space Station measured the surface winds associated with the low pressure area. RapidScat showed that strongest winds were in the northwestern and southeastern quadrants near 32 meters per second (71.5 mph/115.2 kph).
Winds around the southwestern quadrant were weakest, while the northeastern side of the storm averaged wind speeds around 20 meters per second (44.7 mph/72 kph).
On Nov. 13 at 1145 UTC (7:45 a.m. EST), the NOAA's GOES-East satellite saw the low pressure system formerly known as extra-tropical storm Kate was in the Northern Atlantic Ocean, far to the south of Greenland. An image of the storm was created by the NASA/NOAA GOES Project at NASA's Goddard Space Flight Center in Greenbelt, Maryland.
The image showed the low pressure center near 41 degrees north latitude and 47 degrees west longitude, and clouds associated with the cold front stretched south and west of the center toward the Bahamas. The low pressure center and associated cold front continued tracking to the east, across the Atlantic.
Rob Gutro | EurekAlert!
Less radiation in inner Van Allen belt than previously believed
21.03.2017 | DOE/Los Alamos National Laboratory
Mars volcano, Earth's dinosaurs went extinct about the same time
21.03.2017 | NASA/Goddard Space Flight Center
Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), hot gas, and charged particles, they found magnetic fields that are exceptionally ordered over distances of many million light years. This makes them the most extended magnetic fields in the universe known so far.
The results will be published on March 22 in the journal „Astronomy & Astrophysics“.
Galaxy clusters are the largest gravitationally bound structures in the universe. With a typical extent of about 10 million light years, i.e. 100 times the...
Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.
Ubiquitin is a small protein that can be linked to other cellular proteins, thereby controlling and modulating their functions. The attachment occurs in many...
In the eternal search for next generation high-efficiency solar cells and LEDs, scientists at Los Alamos National Laboratory and their partners are creating...
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors.
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...
Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to simulate these confined natural conditions in artificial vesicles for the first time. As reported in the academic journal Small, the results are offering better insight into the development of nanoreactors and artificial organelles.
Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to...
20.03.2017 | Event News
14.03.2017 | Event News
07.03.2017 | Event News
22.03.2017 | Materials Sciences
22.03.2017 | Physics and Astronomy
22.03.2017 | Materials Sciences