The MODIS instrument on NASA's Terra satellite captured a visible image of Igor at 11:30 am on Sept. 18, while MODIS in the Aqua satellite captured Igor's center just southwest of Bermuda on Sept. 19 at 1:30 p.m. EDT. In imagery on both days, Hurricane Igor maintained a rounded shape and its eye was cloud-filled. When the MODIS instrument that flies aboard NASA's Terra satellite captured Igor after it passed Bermuda on Sept. 20 at 11:15 a.m. EDT, the imagery showed the Igor appeared elongated from south to north, and more resembled a comma-shape. There was even an eye visible in the latest image.
The Atmospheric Infrared Sounder Instrument (AIRS) that flies on NASA's Aqua satellite captured infrared images of Hurricane Igor's cold cloud temperatures and cloud cover on Sept. 18, Sept. 19, and Sept. 20. Igor lost its circular shape by Sept. 20, and there were very few high, strong thunderstorms where the cloud tops were colder than -63F. Infrared data from AIRS on Sept. 20 indicated that Igor was losing its strength as the cloud tops in the thunderstorms within were warming (less high in the atmosphere) and waning.
NASA and JAXA's Tropical Rainfall Measuring Mission (TRMM) satellite also continues to fly over Igor as he makes his track northward in the Atlantic Ocean.
Hurrricane Igor continued to weaken as the Tropical Rainfall Measuring Mission (TRMM) satellite passed over on September 19, 2010 at 0144 UTC showing that the hurricane no longer had an eye. Igor's wind speeds had decreased to about 75 knots (~86 mph) when TRMM collected the TRMM Microwave Imager (TMI) data used in the precipitation analysis. TRMM is managed by both NASA and the Japanese Space Agency.
By 2p.m. EDT on Sept. 20, all warnings and watches for Bermuda had been discontinued. Igor had moved about 350 miles north-northeast of Bermuda and was headed into the North Atlantic. It was located near 37.1 North and 62.5 West. Now, a tropical storm watch is in effect for the coast of Newfoundland from Stones Cove northward and Westward to Jones Harbour, Canada.
Igor was just barely a hurricane, with maximum sustained winds near 75 mph. It was moving northeast at 26 mph. Its minimum central pressure was 965 millibars.
Large swells will continue to affect Bermuda and the U.S. East coast through Tuesday, Sept. 21, causing life-threatening rip-currents and rough surf. Swells affecting the Lesser Antilles, the Virgin Islands, Puerto Rico, Hispaniola and the Bahamas will subside over the next couple of days.
Rob Gutro | EurekAlert!
Diving robots find Antarctic winter seas exhale surprising amounts of carbon dioxide
15.08.2018 | University of Washington
Algorithm provides early warning system for tracking groundwater contamination
14.08.2018 | DOE/Lawrence Berkeley National Laboratory
Scientists at the University of California, Los Angeles present new research on a curious cosmic phenomenon known as "whistlers" -- very low frequency packets...
Scientists develop first tool to use machine learning methods to compute flow around interactively designable 3D objects. Tool will be presented at this year’s prestigious SIGGRAPH conference.
When engineers or designers want to test the aerodynamic properties of the newly designed shape of a car, airplane, or other object, they would normally model...
Researchers from TU Graz and their industry partners have unveiled a world first: the prototype of a robot-controlled, high-speed combined charging system (CCS) for electric vehicles that enables series charging of cars in various parking positions.
Global demand for electric vehicles is forecast to rise sharply: by 2025, the number of new vehicle registrations is expected to reach 25 million per year....
Proteins must be folded correctly to fulfill their molecular functions in cells. Molecular assistants called chaperones help proteins exploit their inbuilt folding potential and reach the correct three-dimensional structure. Researchers at the Max Planck Institute of Biochemistry (MPIB) have demonstrated that actin, the most abundant protein in higher developed cells, does not have the inbuilt potential to fold and instead requires special assistance to fold into its active state. The chaperone TRiC uses a previously undescribed mechanism to perform actin folding. The study was recently published in the journal Cell.
Actin is the most abundant protein in highly developed cells and has diverse functions in processes like cell stabilization, cell division and muscle...
Scientists have discovered that the electrical resistance of a copper-oxide compound depends on the magnetic field in a very unusual way -- a finding that could help direct the search for materials that can perfectly conduct electricity at room temperatur
What happens when really powerful magnets--capable of producing magnetic fields nearly two million times stronger than Earth's--are applied to materials that...
08.08.2018 | Event News
27.07.2018 | Event News
25.07.2018 | Event News
15.08.2018 | Physics and Astronomy
15.08.2018 | Earth Sciences
15.08.2018 | Physics and Astronomy