Wednesday, August 31, 2011

Goodnight Irene: NASA's TRMM Satellite Adds Up Irene's Massive Rainfall Totals

An animation of satellite observations from August 21 through August 29 showing the birth of Hurricane Irene in the Caribbean and her track over Puerto Rico, Hispaniola, the Bahamas, the U.S. East Coast and into Canada. At her strongest, Irene grew to a Category 3 hurricane on the Saffir-Simpson scale and made landfalls in North Carolina, New Jersey and New York. The GOES-13 cloud images are overlaid on a true-color MODIS map. Storm data from NOAA's GOES-13 satellite.

Courtesy: NASA/NOAA GOES

The Tropical Rainfall Measuring Mission (TRMM) has been busy doing just that: measuring the massive amounts of rainfall left in the wake of Hurricane Irene as she ravaged the Caribbean and U.S. East coast this past week.

This infrared image from the Atmospheric Infrared Sounder instrument on NASA's Aqua satellite shows Irene's remnant clouds (blue) and rain still lingering over eastern Canada on August 30 at 2:29 a.m. EDT.  

Credit: NASA JPL, Ed Olsen

TRMM is a satellite that is managed by both NASA and the Japanese Space Agency, and provides inside looks at rainfall rates occurring in tropical weather, including hurricanes. Over the life of Irene, TRMM also calculated cloud heights, which indicated strengthening or weakening of the hurricane. TRMM noticed that whenever "hot towers" or towering high cumulonimbus clouds peaked near the top of the troposphere that Irene would later strengthen, and she did. TRMM also saw heavy rainfall around her eye and outer bands of thunderstorms, sometimes falling at a rate of 2 inches (50 millimeters) per hour.

Irene caused flooding from the Carolinas to the northeastern states. The heaviest rainfall totals of over 225 mm (~8.9 inches) were located in North Carolina where Irene first made landfall in the United States. Very heavy rainfall resulting in flooding was also evident in the TRMM rainfall map in northeastern states along the hurricane's track.
Credit: NASA/SSAI, Hal Pierce

Now, all of that rainfall data from TRMM has been used to compile rainfall total maps, which are quite accurate.

Hal Pierce, who works on the TRMM team at NASA's Goddard Space Flight Center in Greenbelt, Md. said, "the TRMM-based, near-real time Multi-satellite Precipitation Analysis (TMPA) at NASA Goddard monitors rainfall over the global tropics. We did an analysis of TMPA rainfall totals for the period from August 20 to 29, 2011 and Hurricane Irene was dropping tremendous amounts of rainfall over the eastern United States during a part of this period."

Irene caused flooding from the Carolinas to the northeastern states. The heaviest rainfall totals of over 225 mm (~8.9 inches) were located in North Carolina where Irene first made landfall in the United States. Very heavy rainfall resulting in flooding was also evident in the TRMM rainfall map in northeastern states along the hurricane's track. Irene's flooding in Vermont was described as "epic" in proportion.

The TMPA was used to measure Irene's rainfall. 100 millimeters is about 4 inches. This image was created using a NASA Web-based application called Giovanni that provides a simple and intuitive way to visualize, analyze, and access vast amounts of Earth science remote sensing data without having to download the data.
Credit: NASA, Dr. James Acker

In summary, Irene's extreme rainfall left the U.S. coast cleaning up this week. There were over five million homes and businesses still without power three or four days after Hurricane Irene passed. News reports indicate that 41 people died nationally. CNBC, the financial news channel said damage estimate from Irene are near 2 billion dollars.

As Irene made landfall in New York City on Sunday, August 29 at 9 a.m. EDT and moved northward, it knocked out power and brought flooding rainfall there and throughout New England. Connecticut received about 8 inches of rain, flooding rivers and streams. As of August 30, 450,000 people were still without power.

Irene's rains were relentless in Vermont. Vermont fared worse than other states along the east coast, and it was the worst hit the state has had from a hurricane. About a foot of rain fell in the entire state, destroying four to six of the iconic covered bridges, and washing out or damaging over 260 roads. The Governor proclaimed this is the worst flooding in the history of the state.

The TMPA rainfall map for Md., Del., and parts of N.C., Va., W.V., Pa., N.J., and N.Y. shows Irene's rainfall along the U.S. East Coast. A ground measurement in Elkridge, Md. south of Baltimore received about 5.25 in. (133 mm) of rain. The TMPA showed Elkridge received between 120-140mm of rain – the same range as measured on the ground. Nearby BWI airport recorded 4.69 in. (119mm) so TMPA provided an accurate estimate of Irene's rainfall in Md.
Credit: NASA, Dr. James Acker

As the U.S. east coast continues recovering from Hurricane Irene, a look at the rainfall totals from the TRMM satellite will serve as a reminder of the power a Category one hurricane or tropical storm can do.

Contacts and sources:
Rob Gutro/Hal Pierce/Jim Acker
NASA's Goddard Space Flight Center, Greenbelt, Md.

4 comments:

  1. I found out, that taking herbal treatment is the best to get rid of hpv as soon as i feel the symptoms of hpv is appearing, i took the healing process by contacting Dr onokun for natural treatment it works wonders, amazingly ever since I had the herbal treatment i have not feel these horrible disease anymore and my doc told me the virus is gone, i am glad i finally got cured out from this horrible disease. every hpv or herpes patients should also get in touch with this herbalist Dr to get ride of these disease forever his email address;
    dronokunherbalcure@gmail.com..........he also specialize on the following details.

    HIV/AID
    HERPES 1/2
    CANCER

    ReplyDelete
  2. Investing online has been a main source of income,that's why knowledge plays a very important role in humanity,you don't need to over work yourself for money.All you need is the right information,and you could build your own wealth from the comfort of your home!Binary trading is dependent on timely signals,assets or controlled strategies which when mastered increases chance of winning up to 90%-100% with trading. It’s possible to earn $10,000 to $20,000 trading weekly-monthly,just file a complaint with  Robert,I had almost given up on everything about binary trading and ever getting my lost funds back,till i met with him,with his help now i have my lost funds back to my bank account and I can now trade successfully with his profitable strategies and software!! Email: Robertseaman939@gmail.com or Fb.me/investandmakemoney1 or  whatsApp: +44 7466 770724

    ReplyDelete
  3. I was diagnosed of herpes virus, I have tried all possible means to get cure but all my effort proved abortive, until a friend of mine introduced me to a herbal doctor called Dr Agaba, who prepare herbal medicine to cure all kind of diseases including herpes virus (Herpes), when i contacted this herbal doctor via email, he sent me herpes virus herbal medicine via courier service, when i received the herbal medicine he gave me step by step instructions on how to apply it, when i applied it as instructed i was totally cured from the virus within 3 weeks of usage. Contact this great herbal doctor today to get your cure. 
    Via Email: Dragabasolutionhome@gmail.com or WhatApp: +2349074536486

    ReplyDelete
  4. I has suffered for Human papillomavirus HPV) for 2years, I was given some tablets at the hospital but I refused to take it, They said I have to be on it for life so I don't want take a drugs everyday for life. No point in taking medicine everyday when u won't get cure from it and I was advice to seek for natural herbal cure, after some time I found dr onokun is the most trustful herbalist that have herbs to cure wicked symptom's,I emailed dr onokun, for 2weeks been his patient he cured my (HPV) with his herbal. I only used his natural herbs for two weeks it was 100% cure. I'm not (HPV) patient anymore. I'm happy about it i finally got cured out of this mess been in my body for 2years. I also recommend you if you're living with (HPV) or herpes symptoms i also want you to be free contact dr onokun with the email attach to my post. Dronokunherbalcure@gmail.com

    ReplyDelete