Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

NASA's TRMM Satellite Sees the Power in Tropical Storm Alenga

07.12.2011
The first tropical storm of the Southern Indian Ocean season has been renamed from Tropical Storm 01S to Tropical Storm Alenga as it continues to strengthen. NASA's TRMM satellite was able to capture a look at the rainfall rates and cloud heights within Alenga recently.

On December 4, 2011 at 1210 UTC (7:10 a.m. EST) the Tropical Rainfall Measuring Mission (TRMM) satellite had a look at the first tropical storm forming in the Indian Ocean this season. Tropical cyclones normally form in this area between November 15 and April 30 so this one was a little overdue.


TRMM's Precipitation Radar (PR) data is depicted in a 3-D image that revealed a few powerful storms near the storm's center were pushing up to heights of over 12 km (~7.45 miles). The release of energy within these tall towers are often a sign that a storm is intensifying.
Credit: NASA/SSAI, Hal Pierce

The TRMM satellite is managed by both NASA and the Japanese Space Agency, and obtains rainfall measurements in the tropics. TRMM provided a "top down" rainfall analysis of Tropical Storm Alenga on Dec. 4 at 12:10 UTC (7:10 a.m. EST) using the TRMM Microwave Imager (TMI) and Precipitation Radar (PR) overlaid on an enhanced infrared image from Visible and InfraRed Scanner (VIRS) data. This analysis was done at NASA's Goddard Space Flight Center in Greenbelt, Md. and showed that very heavy rainfall of over 50 mm (~2 inches) per hour was occurring in the forming tropical cyclone near the center of its circulation.

Hal Pierce of NASA's TRMM Team at NASA Goddard made the December 4 images from TRMM Data. Pierce said, "TRMM's Precipitation Radar (PR) data is depicted in a 3-D image that revealed a few powerful storms near the storm's center were pushing up to heights of over 12 km (~7.45 miles). The release of energy within these tall towers are often a sign that a storm is intensifying."

On Dec. 6 at 4 a.m. EST (0900 UTC), Alenga's maximum sustained winds were near 45 knots (52 mph/83 kmh). Alenga was located in the Southern Indian Ocean's open waters 560 nautical miles west of the Cocos Islands, near 12.8 South latitude and 87.5 East longitude. Alenga was moving to the southwest near 2 knots (3 mph/4 kmh).

Infrared satellite imagery today, Dec. 6 showed that the showers and thunderstorms within Alenga are decreasing, and the bands of thunderstorms around its center are weakening. The Joint Typhoon Warning Center noted that this weakening is only temporary as Alenga is forecast to regain strengthen before weakening again two days from now as it becomes an extra-tropical storm.

As Alenga continues to head southeast, it is moving into a hostile environment, where wind shear will increase and batter the tropical cyclone, weakening it.

Text credit: Rob Gutro/Hal Pierce
NASA's Goddard Space Flight Center/SSAI, Greenbelt, Md.

Rob Gutro/Hal Pierce | EurekAlert!
Further information:
http://www.nasa.gov
http://www.nasa.gov/mission_pages/hurricanes/archives/2011/h2011_Alenga.html

More articles from Earth Sciences:

nachricht How climate change weakens coral 'immune systems'
23.01.2018 | Ohio State University

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

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 >>>