Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

NASA's TRMM Satellite Reveals Heaviest Rainfall in Maria's Northwestern Quadrant

16.09.2011
NASA's TRMM satellite peers through clouds and can decipher the rate rain is falling within a tropical cyclone, and data from the satellite shows that the heaviest rainfall is occurring in the northwestern quadrant of the storm, away from Bermuda.

The Tropical Rainfall Measuring Mission (TRMM) satellite traveled above tropical storm Maria on Thursday, September 15, 2011 at 1001 UTC ( 6:01 a.m. EDT). TRMM has the ability to measure rainfall rates and cloud heights, two factors that are important and helpful to the National Hurricane Center (NHC) meteorologists who are forecasting Maria's next move. The TRMM rainfall data that NASA provides to the NHC is helpful in determining the amount of rainfall that Bermuda will receive as Maria passes by. The NHC forecasts between 1 and 3 inches of rainfall for Bermuda today from Maria.


NASA's TRMM satellite flew over Tropical Storm Maria on September 15, 2011 at 6:01 a.m. EDT. The heaviest rainfall was occurring in the northwest quadrant of the storm (Red) falling at almost 2 inches (50 mm) per hour. The yellow and green areas indicate moderate rainfall between .78 to 1.57 inches per hour. Credit: SSAI/NASA, Hal Pierce

Maria's organization had improved over that seen by TRMM earlier in the week due to favorable (warmer) sea surface temperatures and lower upper level wind shear. A rainfall analysis from TRMM's Precipitation Radar (PR), displayed in a lighter swath, showed that powerful convective storms were dropping rainfall at a rate of over 50mm/hr (~2 inches) northwest of Maria's center of circulation. A large area of rainfall containing bands of heavier rainfall was also shown by TRMM's Microwave Imager (TMI) to be located between the storm's center and Bermuda. At the time TRMM passed over Maria, the NHC estimated that Maria had wind speeds of 55 knots (65 mph).

At 11 a.m. EDT on Sept. 15, Maria's maximum sustained winds were just shy of hurricane strength at 70 mph (110 kmh) and an eye appeared on microwave satellite imagery. Maria was about 130 miles west of Bermuda near 32.4 North and 67.0 West. Maria was speeding north-northeast at 30 mph (48 kmh) and had a minimum central pressure of 991 millibars. A Hurricane Watch and Tropical Storm Warning are currently in effect for Bermuda as Maria passes by today.

By 2:00 p.m. EDT today as Maria passes to the west of Bermuda, winds are predicted to reach minimal hurricane strength of 65 knots (75 mph). Maria is then forecast to turn to the northeast and speed up.

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

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

More articles from Earth Sciences:

nachricht Climate satellite: Tracking methane with robust laser technology
22.06.2017 | Fraunhofer-Gesellschaft

nachricht How reliable are shells as climate archives?
21.06.2017 | Leibniz-Zentrum für Marine Tropenforschung (ZMT)

All articles from Earth Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: Can we see monkeys from space? Emerging technologies to map biodiversity

An international team of scientists has proposed a new multi-disciplinary approach in which an array of new technologies will allow us to map biodiversity and the risks that wildlife is facing at the scale of whole landscapes. The findings are published in Nature Ecology and Evolution. This international research is led by the Kunming Institute of Zoology from China, University of East Anglia, University of Leicester and the Leibniz Institute for Zoo and Wildlife Research.

Using a combination of satellite and ground data, the team proposes that it is now possible to map biodiversity with an accuracy that has not been previously...

Im Focus: Climate satellite: Tracking methane with robust laser technology

Heatwaves in the Arctic, longer periods of vegetation in Europe, severe floods in West Africa – starting in 2021, scientists want to explore the emissions of the greenhouse gas methane with the German-French satellite MERLIN. This is made possible by a new robust laser system of the Fraunhofer Institute for Laser Technology ILT in Aachen, which achieves unprecedented measurement accuracy.

Methane is primarily the result of the decomposition of organic matter. The gas has a 25 times greater warming potential than carbon dioxide, but is not as...

Im Focus: How protons move through a fuel cell

Hydrogen is regarded as the energy source of the future: It is produced with solar power and can be used to generate heat and electricity in fuel cells. Empa researchers have now succeeded in decoding the movement of hydrogen ions in crystals – a key step towards more efficient energy conversion in the hydrogen industry of tomorrow.

As charge carriers, electrons and ions play the leading role in electrochemical energy storage devices and converters such as batteries and fuel cells. Proton...

Im Focus: A unique data centre for cosmological simulations

Scientists from the Excellence Cluster Universe at the Ludwig-Maximilians-Universität Munich have establised "Cosmowebportal", a unique data centre for cosmological simulations located at the Leibniz Supercomputing Centre (LRZ) of the Bavarian Academy of Sciences. The complete results of a series of large hydrodynamical cosmological simulations are available, with data volumes typically exceeding several hundred terabytes. Scientists worldwide can interactively explore these complex simulations via a web interface and directly access the results.

With current telescopes, scientists can observe our Universe’s galaxies and galaxy clusters and their distribution along an invisible cosmic web. From the...

Im Focus: Scientists develop molecular thermometer for contactless measurement using infrared light

Temperature measurements possible even on the smallest scale / Molecular ruby for use in material sciences, biology, and medicine

Chemists at Johannes Gutenberg University Mainz (JGU) in cooperation with researchers of the German Federal Institute for Materials Research and Testing (BAM)...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Plants are networkers

19.06.2017 | Event News

Digital Survival Training for Executives

13.06.2017 | Event News

Global Learning Council Summit 2017

13.06.2017 | Event News

 
Latest News

Quantum thermometer or optical refrigerator?

23.06.2017 | Physics and Astronomy

A 100-year-old physics problem has been solved at EPFL

23.06.2017 | Physics and Astronomy

Equipping form with function

23.06.2017 | Information Technology

VideoLinks
B2B-VideoLinks
More VideoLinks >>>