Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:


NASA Satellite Catches a Hurricane Transforming Itself


This is an image of Hurricane Ophelia (2005) from the Geostationary Operational Environmental Satellite (GOES)-12 during the storm’s warm-core tropical stages. Credit: Naval Research Laboratory, Marine Meteorology Division.

This image, also from the GOES-12 satellite, shows Hurricane Ophelia (2005) interacting with a mid-latitude front draped across the northeastern U.S. as it loses some of it’s tropical characteristics. Credit: Naval Research Laboratory, Marine Meteorology Division.

Hurricanes can completely re-structure themselves inside, and that presents forecasters with great uncertainty when predicting their effects on the general population.

Recently, scientists used data from NASA’s Tropical Rainfall Measuring Mission (TRMM) satellite to analyze transformations that take place inside a hurricane. Stephen Guimond, a graduate research assistant at Florida State University, Tallahassee, Fla., lead a study that used TRMM data to view the height at which ice melts near the core of several tropical cyclones (the generic name for hurricanes or tropical storms), including Hurricane Ophelia in 2005.

“The temperature structure of a tropical cyclone is directly related to a storm’s wind speed and rainfall, which indirectly affects the storm surge,” Guimond said. It is important to monitor a storm’s thermal structure because this information assists meteorologists in estimating the impact on threatened areas of high winds, flash flooding and large storm surge.

Many tropical cyclones transform into what are called “extra-tropical storms” as they move northward out of the tropics and into the mid-latitudes. During this stage, the storm’s cloud structure and high winds spread out over a wide area. As a result, the potential for heavy rainfall and large storm surge increases far from the center, potentially affecting life and property of more areas in the hurricane’s path.

When Guimond and his colleagues at the Naval Research Laboratory in Monterey, Calif. looked at the data from TRMM’s Precipitation Radar instrument, they could see the temperature changes inside a tropical cyclone. One piece of information that gave researchers a clue that a storm was becoming extra-tropical was that ice particles, which are found high up in the cold regions of thick clouds surrounding the eye of the storm, melted at lower levels. Usually, when a tropical cyclone is still in the “tropical stages,” ice particles melt higher in the clouds.

By analyzing when and where ice particles are melting in tropical cyclones, researchers can better understand the various stages of an extra-tropical storm. This knowledge will help scientists re-create storms on computer forecast models, which can assist in the forecasting of future tropical cyclone transformations.

There is another benefit to using the data from NASA’s TRMM radar. Guimond said that the thermal or heat data inferred from the satellite reveals information on storm intensity and also gives clues about how a storm formed. This will help hurricane forecasters and researchers gain a better sense of how the tropical cyclone will develop in the future.

These findings were presented at the American Meteorological Society’s 86th Annual Meeting in Atlanta.

| EurekAlert!
Further information:

More articles from Earth Sciences:

nachricht Receding glaciers in Bolivia leave communities at risk
20.10.2016 | European Geosciences Union

nachricht UM researchers study vast carbon residue of ocean life
19.10.2016 | University of Miami Rosenstiel School of Marine & Atmospheric Science

All articles from Earth Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: New 3-D wiring technique brings scalable quantum computers closer to reality

Researchers from the Institute for Quantum Computing (IQC) at the University of Waterloo led the development of a new extensible wiring technique capable of controlling superconducting quantum bits, representing a significant step towards to the realization of a scalable quantum computer.

"The quantum socket is a wiring method that uses three-dimensional wires based on spring-loaded pins to address individual qubits," said Jeremy Béjanin, a PhD...

Im Focus: Scientists develop a semiconductor nanocomposite material that moves in response to light

In a paper in Scientific Reports, a research team at Worcester Polytechnic Institute describes a novel light-activated phenomenon that could become the basis for applications as diverse as microscopic robotic grippers and more efficient solar cells.

A research team at Worcester Polytechnic Institute (WPI) has developed a revolutionary, light-activated semiconductor nanocomposite material that can be used...

Im Focus: Diamonds aren't forever: Sandia, Harvard team create first quantum computer bridge

By forcefully embedding two silicon atoms in a diamond matrix, Sandia researchers have demonstrated for the first time on a single chip all the components needed to create a quantum bridge to link quantum computers together.

"People have already built small quantum computers," says Sandia researcher Ryan Camacho. "Maybe the first useful one won't be a single giant quantum computer...

Im Focus: New Products - Highlights of COMPAMED 2016

COMPAMED has become the leading international marketplace for suppliers of medical manufacturing. The trade fair, which takes place every November and is co-located to MEDICA in Dusseldorf, has been steadily growing over the past years and shows that medical technology remains a rapidly growing market.

In 2016, the joint pavilion by the IVAM Microtechnology Network, the Product Market “High-tech for Medical Devices”, will be located in Hall 8a again and will...

Im Focus: Ultra-thin ferroelectric material for next-generation electronics

'Ferroelectric' materials can switch between different states of electrical polarization in response to an external electric field. This flexibility means they show promise for many applications, for example in electronic devices and computer memory. Current ferroelectric materials are highly valued for their thermal and chemical stability and rapid electro-mechanical responses, but creating a material that is scalable down to the tiny sizes needed for technologies like silicon-based semiconductors (Si-based CMOS) has proven challenging.

Now, Hiroshi Funakubo and co-workers at the Tokyo Institute of Technology, in collaboration with researchers across Japan, have conducted experiments to...

All Focus news of the innovation-report >>>



Event News

#IC2S2: When Social Science meets Computer Science - GESIS will host the IC2S2 conference 2017

14.10.2016 | Event News

Agricultural Trade Developments and Potentials in Central Asia and the South Caucasus

14.10.2016 | Event News

World Health Summit – Day Three: A Call to Action

12.10.2016 | Event News

Latest News

Resolving the mystery of preeclampsia

21.10.2016 | Health and Medicine

Stanford researchers create new special-purpose computer that may someday save us billions

21.10.2016 | Information Technology

From ancient fossils to future cars

21.10.2016 | Materials Sciences

More VideoLinks >>>