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CHARACTERISTICS OF THE PRECIPITATING SYSTEMS DURING THE 2002 DRY-TO-WET FIELD CAMPAIGN IN THE AMAZON REGION. Carlos Augusto Morales 1 ,Luiz Augusto Toledo Machado 2 , Maria Assunção Faus Silva Dias 1,2 , Wando Amorim 1 , Maria Eugenia Baruzzi Frediani 1 , Rachel Ifanger Albrecht 1

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3 rd International LBA Conference, 2004


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slide1

CHARACTERISTICS OF THE PRECIPITATING SYSTEMS DURING THE 2002 DRY-TO-WET FIELD CAMPAIGN IN THE AMAZON REGION

Carlos Augusto Morales1 ,Luiz Augusto Toledo Machado2, Maria Assunção Faus Silva Dias1,2, Wando Amorim1,

Maria Eugenia Baruzzi Frediani1, Rachel Ifanger Albrecht1

1Department of Atmospheric Science, University of São Paulo, Brazil

2Weather and Climate Prediction Center – CPTEC, INPE, Brazil

3rd International LBA Conference, 2004

slide2

OVERVIEW

1. WEATHER RADAR INSIDES

2. GENERAL RAINFALL CHARACTERISTICS

3. THUNDERSTORMS AND RAIN SHOWERS

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Brazilian Doppler S-Band Weather Radar

  • Brazilian Weather Radar: TECSAT/TECTELCOM
  • Frequency: 2.7 – 3 GHz : S-Band
  • Antenna: 2 degrees beam width
  • Power: 750 kW
  • Range Coverage: 150 and 375 km
  • Bin size:Volscan Strategy: 375, 250 and 125 mSurveillance Strategy: 1 km
  • Software: GAMIC
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Operational Routine: 10 min

  • Volume Scans: - 150 km range;- 24 elevations (0-50o);- PRF: 750 Hz;- Z, UZ, Doppler Velocity and Width;
  • Surveillance:- 375 km range;- 2 elevations (0.0 and 0.5o); - PRF: 400 Hz;- Z, UZ, Doppler Velocity and Width;
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Data Availability

  • September 16th through 27th;
  • October 4th through 9th;
  • October 11th through November 7th;
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RADAR DATA ARE AVAILABLE VIA WEBSITE:http://www.master.iag.usp.br/lba

OR BY ftp access:ftp.master.iag.usp.br (username:dadoslba and password: r0nd0nia)

CAPPI: 5 x 5 km (horizontal) from 2 to 20 km height

ASCII Files and GIF/PNG images for

Corrected Radar Reflectivity Factor

Radial Doppler Velocity

Readme files, navigation files and reading codes

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Mature

Development

Decay

Iniciation

AREA

Lifetime Evolution – CS Stage

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CS LIFECYCLE

100 – 1,000 Pixels 22 – 71 km Radius

1,000 – 10,000 Pixels71 – 225 km Radius

> 10,000 Pixels> 225 km Radius

Frediani et al. Poster 42.10-P

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LIGHTNING FLASH DENSITY LIFECYCLE

Frediani et al. Poster 42.10-P

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HOW DOES IT CHANGE IN TIME THE MEAN VERTICAL CONVECTIVE PROFILES IN

THUNDERSTORMS AND RAIN STORMS?

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This study was supported by CNPq (Conselho Nacional de Desenvolvimento Cientifico e Tecnólogico, Brazil)/IRD (Institut de Recherche pour le Développement, France) cooperative Project Grant number 910153/98-1, CAPES/COFECUB. The work has also received financial support from (FAPESP) grant

3th International LBA Conference, 2004

SPECIAL THANKS TO ALL THE STUDENTS FROM USP, UNIVAP AND UNIR THAT MAKE THIS FIELD CAMPAIGN TO WORK.