CHARACTERISTICS OF THE PRECIPITATING SYSTEMS DURING THE 2002 DRY-TO-WET FIELD CAMPAIGN IN THE AMAZON...
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Transcript of CHARACTERISTICS OF THE PRECIPITATING SYSTEMS DURING THE 2002 DRY-TO-WET FIELD CAMPAIGN IN THE AMAZON...
CHARACTERISTICS OF THE CHARACTERISTICS OF THE PRECIPITATING SYSTEMS DURING THE PRECIPITATING SYSTEMS DURING THE 2002 DRY-TO-WET FIELD CAMPAIGN IN 2002 DRY-TO-WET FIELD CAMPAIGN IN
THE AMAZON REGIONTHE 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, Brazil2Weather and Climate Prediction Center – CPTEC, INPE, Brazil
3rd International LBA Conference, 2004
OVERVIEWOVERVIEW
1. WEATHER RADAR INSIDES1. WEATHER RADAR INSIDES
2. GENERAL RAINFALL CHARACTERISTICS2. GENERAL RAINFALL CHARACTERISTICS
3. THUNDERSTORMS AND RAIN SHOWERS3. THUNDERSTORMS AND RAIN SHOWERS
Data Set
1. WEATHER RADAR INSIDES1. WEATHER RADAR INSIDES
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
• 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;
Operational Routine: 10 min
Data Availability
• September 16th through 27th;• October 4th through 9th;• October 11th through November 7th;
RADAR DATA ARE AVAILABLE VIA WEBSITE: http://www.master.iag.usp.br/lbahttp://www.master.iag.usp.br/lba
OR BY ftp access: ftp.master.iag.usp.brftp.master.iag.usp.br (username:dadoslbadadoslba and password: r0nd0niar0nd0nia)
CAPPI: 5 x 5 km (horizontal) from 2 to 20 km heightCAPPI: 5 x 5 km (horizontal) from 2 to 20 km height
ASCII Files and GIF/PNG images for ASCII Files and GIF/PNG images for Corrected Radar Reflectivity FactorCorrected Radar Reflectivity Factor
Radial Doppler VelocityRadial Doppler Velocity
Readme files, navigation files and reading codesReadme files, navigation files and reading codes
RADAR CALIBRATIONRADAR CALIBRATION
Radar Bias Offset: TRMM Intercomparison
BIAS Retrieved: BIAS Retrieved: +6.47 dBZ+6.47 dBZ
2. GENERAL RAINFALL CHARACTERISTICS2. GENERAL RAINFALL CHARACTERISTICS
CAPPI at 2km (5x5 km) x Rain gauges
Daily Means – Time Series - 1
Radar Not WorkingRadar Not Working
Daily Means – Time Series – 2
Radar Not WorkingRadar Not Working
Diurnal Cycle
3. THUNDERSTORMS AND RAIN SHOWERS3. THUNDERSTORMS AND RAIN SHOWERS
Lifetime Evolution – CS Stage
AREA
Iniciation
Development
Mature
Decay
SATELLITE CLOUD TRACKING OVER SATELLITE CLOUD TRACKING OVER CONVECTIVE SYSTEMSCONVECTIVE SYSTEMS
Frediani et al. Poster 42.10-P
100 – 1,000 Pixels 22 – 71 km Radius
1,000 – 10,000 Pixels71 – 225 km Radius
> 10,000 Pixels> 225 km Radius
CS LIFECYCLECS LIFECYCLE
Frediani et al. Poster 42.10-P
LIGHTNING FLASH DENSITY LIFECYCLELIGHTNING FLASH DENSITY LIFECYCLE
Frediani et al. Poster 42.10-P
RADAR TRACKING OVER RAIN STORMSRADAR TRACKING OVER RAIN STORMS
HOW DOES IT CHANGE IN TIME THE HOW DOES IT CHANGE IN TIME THE MEAN VERTICAL CONVECTIVE MEAN VERTICAL CONVECTIVE
PROFILES IN PROFILES IN
THUNDERSTORMSTHUNDERSTORMS AND AND RAIN STORMSRAIN STORMS??
3th International LBA Conference, 2004
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
SPECIAL THANKS TO ALL THE STUDENTS FROM SPECIAL THANKS TO ALL THE STUDENTS FROM USP, UNIVAP AND UNIR THAT MAKE THIS FIELD USP, UNIVAP AND UNIR THAT MAKE THIS FIELD CAMPAIGN TO WORK.CAMPAIGN TO WORK.