Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Tropical Depression Keuna's rainfall weakens

11.06.2012
NASA TRMM satellite data reveals lighter rainfall

The Tropical Rainfall Measuring Mission satellite called TRMM measures how much rain can fall per hour in storms. Between June 6 and 7, TRMM noticed the rainfall rate within Tropical Depression Kuena had lessened.


These two images of Kuena's rainfall from NASA's TRMM satellite show how the intensity waned between June 6 (left) and June 7 (right). The yellow, green and blue areas indicate light-to-moderate rainfall between 20 and 40 millimeters (.78 to 1.57 inches) per hour. The red area is considered heavy rainfall at 2 inches/50 mm per hour. There were no areas of heavy rain on June 7 as the system continued to weaken. Kuena's past and forecast track is shown overlaid in white on the left image. Credit: NASA/SSAI, Hal Pierce

A tropical storm called Kuena formed in the southwest Indian Ocean east of Madagascar on June 6, 2012. This is a little unusual because the tropical cyclone season in that area normally ends on May 15, although two tropical storms formed in the north Atlantic this year before that season even officially started, so tropical cyclones seem to be ignoring the calendar this year.

The TRMM satellite had an excellent view of Kuena when it flew directly above the newly formed storm on June 6, 2012 at 1607 UTC. A rainfall analysis was made at NASA's Goddard Space Flight Center in Greenbelt, Md. that used data from TRMM's Microwave Imager (TMI) and Precipitation Radar (PR) instruments. That analysis was overlaid on an enhanced infrared image from TRMM's Visible and InfraRed Scanner (VIRS) instrument and showed heavy convective storms were dropping intense rainfall of over 50mm/hr (~2 inches) within the storm. A 3-D analysis of Kuena's vertical structure showed that a few of these powerful storms within Kuena were pushing to heights above 15km (~9.3 miles).

The TRMM satellite had another fairly good look at Kuena on June 7, 2012 at 0158 UTC. Data from TRMM's TMI instrument shows that Kuena was producing moderate rainfall over a large area of the south Indian Ocean east of Madagascar. There were no areas of intense rainfall on June 7, as there were on June 6.

At 1500 UTC (10 a.m. EDT) on June 7, the Joint Typhoon Warning Center noted that the last position of the low's center was near 8.7 South latitude and 55.5 East longitude. It was moving in a northwest direction as it continued weakening until it dissipated under strong wind shear conditions.

Rob Gutro | EurekAlert!
Further information:
http://www.nasa.gov

More articles from Earth Sciences:

nachricht Satellite data show severity of drought summers in 2018 and 2019
13.07.2020 | GFZ GeoForschungsZentrum Potsdam, Helmholtz Centre

nachricht NASA analyzes Tropical Cyclone Cristina's water vapor concentration
09.07.2020 | NASA/Goddard Space Flight Center

All articles from Earth Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: Electron cryo-microscopy: Using inexpensive technology to produce high-resolution images

Biochemists at Martin Luther University Halle-Wittenberg (MLU) have used a standard electron cryo-microscope to achieve surprisingly good images that are on par with those taken by far more sophisticated equipment. They have succeeded in determining the structure of ferritin almost at the atomic level. Their results were published in the journal "PLOS ONE".

Electron cryo-microscopy has become increasingly important in recent years, especially in shedding light on protein structures. The developers of the new...

Im Focus: The spin state story: Observation of the quantum spin liquid state in novel material

New insight into the spin behavior in an exotic state of matter puts us closer to next-generation spintronic devices

Aside from the deep understanding of the natural world that quantum physics theory offers, scientists worldwide are working tirelessly to bring forth a...

Im Focus: Excitation of robust materials

Kiel physics team observed extremely fast electronic changes in real time in a special material class

In physics, they are currently the subject of intensive research; in electronics, they could enable completely new functions. So-called topological materials...

Im Focus: Electrons in the fast lane

Solar cells based on perovskite compounds could soon make electricity generation from sunlight even more efficient and cheaper. The laboratory efficiency of these perovskite solar cells already exceeds that of the well-known silicon solar cells. An international team led by Stefan Weber from the Max Planck Institute for Polymer Research (MPI-P) in Mainz has found microscopic structures in perovskite crystals that can guide the charge transport in the solar cell. Clever alignment of these "electron highways" could make perovskite solar cells even more powerful.

Solar cells convert sunlight into electricity. During this process, the electrons of the material inside the cell absorb the energy of the light....

Im Focus: The lightest electromagnetic shielding material in the world

Empa researchers have succeeded in applying aerogels to microelectronics: Aerogels based on cellulose nanofibers can effectively shield electromagnetic radiation over a wide frequency range – and they are unrivalled in terms of weight.

Electric motors and electronic devices generate electromagnetic fields that sometimes have to be shielded in order not to affect neighboring electronic...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Contact Tracing Apps against COVID-19: German National Academy Leopoldina hosts international virtual panel discussion

07.07.2020 | Event News

International conference QuApps shows status quo of quantum technology

02.07.2020 | Event News

Dresden Nexus Conference 2020: Same Time, Virtual Format, Registration Opened

19.05.2020 | Event News

 
Latest News

Black phosphorus-based van der Waals heterostructures for mid-infrared light-emission applications

13.07.2020 | Physics and Astronomy

Polarization of Br2 molecule in vanadium oxide cluster cavity and new alkane bromination

13.07.2020 | Life Sciences

Researchers present concept for a new technique to study superheavy elements

13.07.2020 | Life Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>