Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

NASA sees Hurricane Jimena's large eye

01.09.2015

NASA's Aqua satellite and NOAA's GOES-East satellites provided views of Hurricane Jimena that showed it maintained a large eye and powerful thunderstorms around it. On August 31, Jimena continued moving through the Eastern Pacific as a major hurricane.

An infrared image from NOAA's GOES-West satellite on August 31 at 8:00 a.m. EDT revealed that Hurricane Jimena's wide-eye continued to be cloud free. The GOES image also showed thick bands of powerful thunderstorms circling the eye.


This infrared image from NOAA's GOES-West satellite shows Hurricane Jimena on Aug. 31 at 8:00 a.m.

Credits: NASA/NOAA GOES Project

The Atmospheric Infrared Sounder or AIRS instrument aboard Aqua gathers infrared data that shows temperatures. Data taken on August 31 at 10:59 UTC (6:59 a.m. EDT) was made into a false-colored image that revealed powerful thunderstorms with cloud top temperatures in excess of -81F/-63C/210K around the center of Hurricane Jimena. NASA research has shown that thunderstorms with cloud tops that cold and high in the troposphere have the potential to generate heavy rainfall.

The AIRS data also showed that sea surface temperatures around Jimena were warmer than 28 degrees Celsius (82.4 Fahrenheit). Warmer sea surface temperatures can help a storm intensify because they can increase evaporation and thunderstorm development. As the warm, moist air evaporates and rises, it condenses into clouds. In a hurricane, air rotates inward toward the storm's center then rises to higher altitudes. As the air rises it cools and condenses into clouds and rain, releasing heat (called latent heat). It is the cycle of evaporation and condensation powers a tropical cyclone.

NHC forecaster Cangialosi noted "Jimena is expected to more or less maintain its intensity during the next day or so while it remains over 28C water and in a very low wind shear environment." Tropical cyclones need sea surface temperatures of at least 26.6C/80F to maintain intensity.

NOAA's National Hurricane Center (NHC) on-line discussion said "the eye of the hurricane remains distinct and has a diameter of about 20 nautical miles, and the convective pattern is slightly asymmetric with cloud tops slightly warmer west of the eye.

On August 31 at 1500 UTC (11 a.m. EDT/5 a.m. HST), the center of Hurricane Ignacio was located near latitude 15.6 North and longitude 135.3 West. That's about 1,330 miles (2,145 km) east of Hilo, Hawaii. The estimated minimum central pressure is 936 millibars.

NHC reported Jimena's maximum sustained winds were near 150 mph (240 kph). Jimena is a category 4 hurricane on the Saffir-Simpson Hurricane Wind Scale. Little change in strength is expected during the next day or so, followed by slow weakening.

Jimena was moving toward the west near 16 mph (26 kph) and is forecast to turn to the west-northwest with a decrease in forward speed during the next couple of days.

For updated forecasts, visit NOAA's NHC website: http://www.nhc.noaa.gov.

Rob Gutro | EurekAlert!

More articles from Earth Sciences:

nachricht Researchers reveal how microbes cope in phosphorus-deficient tropical soil
23.01.2018 | DOE/Oak Ridge National Laboratory

nachricht Radioactivity from oil and gas wastewater persists in Pennsylvania stream sediments
22.01.2018 | Duke University

All articles from Earth Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Optical Nanoscope Allows Imaging of Quantum Dots

Physicists have developed a technique based on optical microscopy that can be used to create images of atoms on the nanoscale. In particular, the new method allows the imaging of quantum dots in a semiconductor chip. Together with colleagues from the University of Bochum, scientists from the University of Basel’s Department of Physics and the Swiss Nanoscience Institute reported the findings in the journal Nature Photonics.

Microscopes allow us to see structures that are otherwise invisible to the human eye. However, conventional optical microscopes cannot be used to image...

Im Focus: Artificial agent designs quantum experiments

On the way to an intelligent laboratory, physicists from Innsbruck and Vienna present an artificial agent that autonomously designs quantum experiments. In initial experiments, the system has independently (re)discovered experimental techniques that are nowadays standard in modern quantum optical laboratories. This shows how machines could play a more creative role in research in the future.

We carry smartphones in our pockets, the streets are dotted with semi-autonomous cars, but in the research laboratory experiments are still being designed by...

Im Focus: Scientists decipher key principle behind reaction of metalloenzymes

So-called pre-distorted states accelerate photochemical reactions too

What enables electrons to be transferred swiftly, for example during photosynthesis? An interdisciplinary team of researchers has worked out the details of how...

Im Focus: The first precise measurement of a single molecule's effective charge

For the first time, scientists have precisely measured the effective electrical charge of a single molecule in solution. This fundamental insight of an SNSF Professor could also pave the way for future medical diagnostics.

Electrical charge is one of the key properties that allows molecules to interact. Life itself depends on this phenomenon: many biological processes involve...

Im Focus: Paradigm shift in Paris: Encouraging an holistic view of laser machining

At the JEC World Composite Show in Paris in March 2018, the Fraunhofer Institute for Laser Technology ILT will be focusing on the latest trends and innovations in laser machining of composites. Among other things, researchers at the booth shared with the Aachen Center for Integrative Lightweight Production (AZL) will demonstrate how lasers can be used for joining, structuring, cutting and drilling composite materials.

No other industry has attracted as much public attention to composite materials as the automotive industry, which along with the aerospace industry is a driver...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

10th International Symposium: “Advanced Battery Power – Kraftwerk Batterie” Münster, 10-11 April 2018

08.01.2018 | Event News

See, understand and experience the work of the future

11.12.2017 | Event News

Innovative strategies to tackle parasitic worms

08.12.2017 | Event News

 
Latest News

Researchers reveal how microbes cope in phosphorus-deficient tropical soil

23.01.2018 | Earth Sciences

Opening the cavity floodgates

23.01.2018 | Life Sciences

Siberian scientists suggested a new method for synthesizing a promising magnetic material

23.01.2018 | Materials Sciences

VideoLinks Science & Research
Overview of more VideoLinks >>>