Forecasters noted that Nadine could have started transitioning into an extra-tropical storm, because there was little significant rainfall near Nadine's center of circulation yesterday, Sept. 19. However, satellite data and data gathered from NASA's Global Hawk during a flight in the Hurricane and Severe Storm Sentinels (HS3) campaign on Sept. 19 and 20, showed that wasn't happening yet.
NASA's TRMM satellite flew over Nadine on Sept. 20 at 5:17 a.m. EDT and gathered rainfall data. TRMM saw the maximum intensity of rainfall is about 20 mm/hr (~ .8 inches). The Azores is shown being affected by a rain band from Nadine.
Credit: NASA/SSAI, Hal Pierce
NASA's TRMM Satellite Measures Nadine's Rainfall from Space
The Tropical Rainfall Measuring Mission (TRMM) satellite flew over Nadine on Sept. 20 at 0917 UTC (5:17 a.m. EDT) and gathered rainfall data. "TRMM data showed that convection developed near Nadine's center, indicating that Nadine is more characteristic of a tropical cyclone than expected," said Hal Pierce, of NASA's Goddard Space Flight Center in Greenbelt, Md.
Hal overlaid the data from TRMM's Visible and InfraRed Scanner (VIRS) and TRMM's Microwave Imager (TMI) to create a full picture of rainfall occurring in the storm. The rainfall analysis indicated that the maximum intensity of rainfall is about 20 mm/hr (~ 0.8 inches). The Azores is shown being affected by a rain band from Nadine. Infrared satellite data revealed that convection (rising air that form the thunderstorms that make up the cyclone) around Nadine's inner-core has increased and become better organized since Sept. 19. Infrared data also indicated an eye-like feature.
TRMM is a joint mission of NASA and the Japanese Space Agency, JAXA.
NASA's HS3 Global Hawk Examines Nadine
The three science instruments aboard the Global Hawk performed extremely well, transmitting their data back to NASA Wallops for the scientists to analyze and discuss. The plane observed Nadine for more than 12 hours. This was the 3rd flight of the Global Hawk to investigate this tropical storm. The forecasters at the National Hurricane Center were using the data supplied by NASA's Global Hawk and noted in the discussion of Nadine at 11 a.m. EDT on Sept. 20, "The current intensity is kept at 45 knots (51.7 mph/83.3 kmh)…is in good agreement with dropsonde data from the NASA global hawk aircraft and AMSU [instrument] estimates."
Nadine's Current Status
As Nadine pulls away, a tropical storm warning was still in effect on Sept. 20 for the islands of Flores, Corvo, Faial, Pico, Sao Jorge, Graciosa, Terceira, Sao Miguel and Santa Maria in the Azores. These areas are also expected to continue dealing with rough ocean swells over the next few days.
On Sept. 20 at 11 a.m. EDT, Nadine was located 165 miles (265 km) south-southwest of Pico in the Azores Islands. It was centered near 36.2 North latitude and 29.4 West longitude. Nadine's maximum sustained winds were near 50 mph (85 kmh). Nadine was moving to the east-southeast at 10 mph (17 kmh) and had a minimum central pressure of 981 millibars.
Nadine's atmospheric steering mechanism, a strong mid-tropospheric trough (elongated area) of low pressure is expected to move to the northeast, and leave the tropical storm in a region of weaker steering winds, so Nadine could start meandering over the next couple of days.
Rob Gutro | EurekAlert!
Climate change weakens Walker circulation
20.10.2017 | MARUM - Zentrum für Marine Umweltwissenschaften an der Universität Bremen
Shallow soils promote savannas in South America
20.10.2017 | Senckenberg Forschungsinstitut und Naturmuseen
University of Maryland researchers contribute to historic detection of gravitational waves and light created by event
On August 17, 2017, at 12:41:04 UTC, scientists made the first direct observation of a merger between two neutron stars--the dense, collapsed cores that remain...
Seven new papers describe the first-ever detection of light from a gravitational wave source. The event, caused by two neutron stars colliding and merging together, was dubbed GW170817 because it sent ripples through space-time that reached Earth on 2017 August 17. Around the world, hundreds of excited astronomers mobilized quickly and were able to observe the event using numerous telescopes, providing a wealth of new data.
Previous detections of gravitational waves have all involved the merger of two black holes, a feat that won the 2017 Nobel Prize in Physics earlier this month....
Material defects in end products can quickly result in failures in many areas of industry, and have a massive impact on the safe use of their products. This is why, in the field of quality assurance, intelligent, nondestructive sensor systems play a key role. They allow testing components and parts in a rapid and cost-efficient manner without destroying the actual product or changing its surface. Experts from the Fraunhofer IZFP in Saarbrücken will be presenting two exhibits at the Blechexpo in Stuttgart from 7–10 November 2017 that allow fast, reliable, and automated characterization of materials and detection of defects (Hall 5, Booth 5306).
When quality testing uses time-consuming destructive test methods, it can result in enormous costs due to damaging or destroying the products. And given that...
Using a new cooling technique MPQ scientists succeed at observing collisions in a dense beam of cold and slow dipolar molecules.
How do chemical reactions proceed at extremely low temperatures? The answer requires the investigation of molecular samples that are cold, dense, and slow at...
Scientists from the Max Planck Institute of Quantum Optics, using high precision laser spectroscopy of atomic hydrogen, confirm the surprisingly small value of the proton radius determined from muonic hydrogen.
It was one of the breakthroughs of the year 2010: Laser spectroscopy of muonic hydrogen resulted in a value for the proton charge radius that was significantly...
17.10.2017 | Event News
10.10.2017 | Event News
10.10.2017 | Event News
20.10.2017 | Information Technology
20.10.2017 | Materials Sciences
20.10.2017 | Interdisciplinary Research