Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Hurricane Gustav

08.09.2008
The development and path of Hurricane Gustav is shown via a sequence of satellite images acquired by Envisat’s Medium Resolution Imaging Spectrometer (MERIS) instrument on 25 August, 28 August, 30 August and 1 September 2008.

Gustav formed on 25 August 2008 some 400 km southeast of Port-au-Prince, Haiti (seen above far right image), when a tropical wave developed curved bands and an upper level eye feature (visible), causing the U.S. National Hurricane Center to designate it Tropical Depression Seven.

Later that day, it had gained enough strength to be designated Tropical Storm Gustav. By the following morning, Gustav had strengthened into a hurricane with winds reaching 150 km per hour.

Hurricane Gustav weakened as it moved over Haiti’s mountainous landscape and was downgraded to a tropical storm. The storm moved toward Jamaica (as visible in the 28 August acquisition) and picked up strength. By 29 August, it was again upgraded to a hurricane.

As it neared the west end of Cuba on 30 August (visible), Gustav was upgraded to a Category 3 hurricane on the Saffir-Simpson Hurricane Scale with sustained winds near 195 km per hour.

By 31 August Hurricane Gustav had entered the Gulf of Mexico with maximum sustained winds of more than 210 km per hour and made landfall in Louisiana on 1 September (visible) as a Category 2 hurricane with winds close to 177 km an hour.

Hurricanes are large powerful storms that rotate around a central area of extreme low pressure. They arise in warm tropical waters that transfer their heat to the air. The warmed air rises rapidly, in the process creating low pressure at the water surface. Winds begin rushing inwards and upwards around this low-pressure zone.

Instruments aboard ESA’s Envisat allow it to observe various features of hurricanes, including high atmosphere cloud structure and pressure, wind pattern and currents at sea surface level and oceanic warm features that contribute to the intensification of hurricanes.

Mariangela D'Acunto | alfa
Further information:
http://www.esa.int/esaEO/SEMV0RO4KKF_index_0.html

All articles from Earth Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: Fizzy soda water could be key to clean manufacture of flat wonder material: Graphene

Whether you call it effervescent, fizzy, or sparkling, carbonated water is making a comeback as a beverage. Aside from quenching thirst, researchers at the University of Illinois at Urbana-Champaign have discovered a new use for these "bubbly" concoctions that will have major impact on the manufacturer of the world's thinnest, flattest, and one most useful materials -- graphene.

As graphene's popularity grows as an advanced "wonder" material, the speed and quality at which it can be manufactured will be paramount. With that in mind,...

Im Focus: Exotic quantum states made from light: Physicists create optical “wells” for a super-photon

Physicists at the University of Bonn have managed to create optical hollows and more complex patterns into which the light of a Bose-Einstein condensate flows. The creation of such highly low-loss structures for light is a prerequisite for complex light circuits, such as for quantum information processing for a new generation of computers. The researchers are now presenting their results in the journal Nature Photonics.

Light particles (photons) occur as tiny, indivisible portions. Many thousands of these light portions can be merged to form a single super-photon if they are...

Im Focus: Circular RNA linked to brain function

For the first time, scientists have shown that circular RNA is linked to brain function. When a RNA molecule called Cdr1as was deleted from the genome of mice, the animals had problems filtering out unnecessary information – like patients suffering from neuropsychiatric disorders.

While hundreds of circular RNAs (circRNAs) are abundant in mammalian brains, one big question has remained unanswered: What are they actually good for? In the...

Im Focus: RAVAN CubeSat measures Earth's outgoing energy

An experimental small satellite has successfully collected and delivered data on a key measurement for predicting changes in Earth's climate.

The Radiometer Assessment using Vertically Aligned Nanotubes (RAVAN) CubeSat was launched into low-Earth orbit on Nov. 11, 2016, in order to test new...

Im Focus: Scientists shine new light on the “other high temperature superconductor”

A study led by scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg presents evidence of the coexistence of superconductivity and “charge-density-waves” in compounds of the poorly-studied family of bismuthates. This observation opens up new perspectives for a deeper understanding of the phenomenon of high-temperature superconductivity, a topic which is at the core of condensed matter research since more than 30 years. The paper by Nicoletti et al has been published in the PNAS.

Since the beginning of the 20th century, superconductivity had been observed in some metals at temperatures only a few degrees above the absolute zero (minus...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Call for Papers – ICNFT 2018, 5th International Conference on New Forming Technology

16.08.2017 | Event News

Sustainability is the business model of tomorrow

04.08.2017 | Event News

Clash of Realities 2017: Registration now open. International Conference at TH Köln

26.07.2017 | Event News

 
Latest News

What the world's tiniest 'monster truck' reveals

23.08.2017 | Life Sciences

Treating arthritis with algae

23.08.2017 | Life Sciences

Witnessing turbulent motion in the atmosphere of a distant star

23.08.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>