Nav: Home

NASA finds Tropical Cyclone Eliakim's clouds warming

March 20, 2018

NASA's Aqua satellite analyzed Tropical Cyclone Eliakim in infrared light and found warmer cloud top temperatures as wind shear continued to pummel the storm. Wind shear has elongated Eliakim and pushed precipitation south of the storm's center.

Infrared light provides valuable cloud top temperature data on tropical cyclones. The higher and colder the cloud tops, the stronger the uplift in the storm and stronger the storms can be. Since March 19, infrared imagery from NASA satellites have shown cloud tops warming in Eliakim. Warmer cloud tops mean the storm has been weakening while being battered by strong northerly vertical wind shear.

On March 20 at EDT (0945 UTC) the MODIS instrument or Moderate Resolution Imaging Spectroradiometer aboard NASA's Aqua satellite observed Tropical Cyclone Eliakim in infrared light. The MODIS data showed coldest cloud top temperatures were as cold as minus 50 degrees Fahrenheit (minus 45.5 degrees Celsius) in storms that were pushed southeast of the center of circulation. The MODIS image showed the northern side of the storm was devoid of rainfall.

At 11 a.m. EDT (1500 UTC) on March 20, 2018, the Joint Typhoon Warning Center (JTWC) issued the final bulletin on Tropical Cyclone Eliakim. At that time, Eliakim was located approximately 499 nautical miles south of St. Denis, La Reunion Island. It was centered near 29.4 degrees south latitude and 54.1 degrees east longitude. Eliakim was moving to the south-southeast at 15 mph (13 knots/24 kph). Maximum sustained winds were still near 52 mph (45 knots/74 kph).

Eliakim was moving south-southeast. JTWC forecasters noted "Eliakim has begun rapid extra-tropical transition and is expected to become a strong gale-force cold core low with an expansive wind field [later in the day on March 20]."
-end-


NASA/Goddard Space Flight Center

Related Infrared Light Articles:

Scientists develop molecular thermometer for contactless measurement using infrared light
Chemists at Johannes Gutenberg University Mainz (JGU) in cooperation with researchers of the German Federal Institute for Materials Research and Testing (BAM) in Berlin have developed a molecular thermometer.
Research spotlights early signs of disease using infrared light: New research
University of Sydney researchers have used infrared spectroscopy to spotlight changes in tiny cell fragments called microvesicles to probe their role in a model of the body's immunological response to bacterial infection.
Extending VCSEL wavelength coverage to the mid-infrared
There are several important gases that are detectable with mid-infrared light, having wavelengths between 3-4 micrometers.
Infrared links could simplify data center communications
Data centers are the central point of many, if not most, information systems today, but the masses of wires interconnecting the servers and piled high on racks begins to resemble last year's tangled Christmas-tree lights disaster.
Nanocubes simplify printing and imaging in color and infrared
Duke University engineers reveal a manufacturing technique that promises to bring a simplified form of printing and imaging in color and infrared into daily use.
More Infrared Light News and Infrared Light Current Events

Best Science Podcasts 2019

We have hand picked the best science podcasts for 2019. Sit back and enjoy new science podcasts updated daily from your favorite science news services and scientists.
Now Playing: TED Radio Hour

Anthropomorphic
Do animals grieve? Do they have language or consciousness? For a long time, scientists resisted the urge to look for human qualities in animals. This hour, TED speakers explore how that is changing. Guests include biological anthropologist Barbara King, dolphin researcher Denise Herzing, primatologist Frans de Waal, and ecologist Carl Safina.
Now Playing: Science for the People

#534 Bacteria are Coming for Your OJ
What makes breakfast, breakfast? Well, according to every movie and TV show we've ever seen, a big glass of orange juice is basically required. But our morning grapefruit might be in danger. Why? Citrus greening, a bacteria carried by a bug, has infected 90% of the citrus groves in Florida. It's coming for your OJ. We'll talk with University of Maryland plant virologist Anne Simon about ways to stop the citrus killer, and with science writer and journalist Maryn McKenna about why throwing antibiotics at the problem is probably not the solution. Related links: A Review of the Citrus Greening...