Tropical Storm Oswald was hugging the southwestern coast of the Cape York Peninsula, Queensland, Australia when NASA's Aqua satellite first flew overhead on Jan. 21 at 0430 UTC (Jan. 20 at 11:30 p.m. EST). The Moderate Resolution Imaging Spectroradiometer (MODIS) instrument aboard NASA's Aqua satellite captured a visible image of the storm that showed tight bands of thunderstorms. Those bands weakened the next day when MODIS captured a second visible image of the storm. At that time, Oswald's eastern quadrant was over land.
These two images of Tropical Storm Oswald show the storm's progression and deterioration over the Cape York Peninsula, Queensland. The MODIS instrument aboard NASA's Aqua satellite captured these on Jan. 21 and Jan. 22 as Oswald made landfall.
Credit: NASA Goddard MODIS Rapid Response Team
On Jan. 21 at 0600 UTC (1 a.m. EST), Oswald had maximum sustained winds near 35 knots (40 mph/64.8 kph). Oswald was centered near 15.8 south and 141.2 east, about 90 nautical miles (103.6 miles /166.7 km) east-northeast of Mornington Island, Australia. NASA MODIS imagery on Jan. 22 showed Oswald's center over the southwestern coast of the peninsula while monsoonal flow was bringing thunderstorms and heavy rainfall to the eastern side of the peninsula. Oswald's maximum sustained winds had dropped to 25 knots (28.7 mph/46.3 kph) on Jan. 22.
NASA also captured an infrared image of Tropical Storm Oswald on Jan. 22 at 0329 UTC with the Atmospheric Infrared Sounder (AIRS) instrument that also flies aboard NASA's Aqua satellite. AIRS data revealed cold cloud tops and strong storms associated with Oswald and a nearby monsoonal trough (elongated area of low pressure) stretched from Cairns north to Cooktown, and over Cape Melville and Lakefield National Parks on the eastern Cape York Peninsula.
At 0600 UTC (1 a.m. EST/U.S.) on Jan. 22, Oswald was downgraded to a remnant low pressure area. The center of circulation was located near 5.0 south latitude and 142.3 east longitude, about 185 nautical miles (213 miles/342.6 km) east-northeast of Mornington Island, Australia, and over the Cape York Peninsula. Infrared satellite data at that time showed the strongest storms were located in the northwestern quadrant. An image from NASA's Tropical Rainfall Measuring Mission (TRMM) satellite on Jan. 22 showed that the low-level center was now stretched across the Cape York Peninsula.
The Australian Bureau of Meteorology (ABM) noted at 10 p.m. Cairns local time (7 a.m. EST/U.S.), that ex-tropical Cyclone Oswald was located over eastern Cape York Peninsula approximately 70 km (43.5 miles) east of Cape Flattery. Oswald was moving southeast at 20 kph (12.4 mph). ABM noted that the monsoon trough (elongated area of low pressure) extended from the ex-tropical cyclone to the east coast near Cairns, which contain the storms that NASA's AIRS instrument saw.
ABM forecasts damaging winds, with gusts to 90 kph (56 mph) with showers and thunderstorms across Cape York Peninsula north of Cooktown. Locations which may be affected include Aurukun, Weipa, Torres Strait Islands, Lockhart River, Coen and Cooktown. Heavy rainfall is likely throughout the Peninsula district, coastal parts of the North Tropical Coast and Tablelands district, and coastal parts of the Herbert and Lower Burdekin district north of about Ayr. The heavy rainfall may also lead to flash flooding. For more information: http://www.bom.gov.au/cyclone/.
Forecasters expect Oswald to linger over the Cape York Peninsula and the Joint Typhoon Warning Center expects Oswald's remnants to continue tracking over land to the southeast.
Predicting unpredictability: Information theory offers new way to read ice cores
07.12.2016 | Santa Fe Institute
Sea ice hit record lows in November
07.12.2016 | University of Colorado at Boulder
Physicists of the University of Würzburg have made an astonishing discovery in a specific type of topological insulators. The effect is due to the structure of the materials used. The researchers have now published their work in the journal Science.
Topological insulators are currently the hot topic in physics according to the newspaper Neue Zürcher Zeitung. Only a few weeks ago, their importance was...
In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.
Even back in the 1990s, scientists were comparing materials processing with nanosecond, picosecond and femtosesecond pulses. The result was surprising:...
Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...
A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.
Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...
In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.
“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...
16.11.2016 | Event News
01.11.2016 | Event News
14.10.2016 | Event News
09.12.2016 | Life Sciences
09.12.2016 | Ecology, The Environment and Conservation
09.12.2016 | Health and Medicine